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RECOMMENDED BOOKS

Moonrush: Improving Life on Earth with the Moon's Resources
Moonrush: Improving Life on Earth with the Moon's Resources

The Kaguya Lunar Atlas: The Moon in High Resolution
The Kaguya Lunar Atlas: The Moon in High Resolution

Lunar Reconnaissance Orbiter Mission
Lunar Reconnaissance Orbiter Mission

Lunar Orbiter Photographic Atlas of the Near Side of the Moon
Lunar Orbiter Photographic Atlas of the Near Side of the Moon

The Far Side of the Moon: A Photographic Guide
The Far Side of the Moon: A Photographic Guide

The Clementine Atlas of the Moon
The Clementine Atlas of the Moon

The International Atlas of Lunar Exploration
The International Atlas of Lunar Exploration

Voices from the Moon: Apollo Astronauts Describe Their Lunar Experiences
Voices from the Moon: Apollo Astronauts Describe Their Lunar Experiences

Apollo: Through the Eyes of the Astronauts
Apollo: Through the Eyes of the Astronauts

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Lunar Orbiter Archives

October 31, 2011

Moon Geology and a New Mystery on Mars' Forgotten Plains

NASA Lunar Orbiter 5 image of the plateau west-northwest of Marius crater on the Moon. Larger Image.

One of the supposedly best understood and least interesting landscapes on Mars is hiding something that could rewrite the planet's history. Or not. In fact, about all that is certain is that decades of assumptions regarding the wide, flat Hesperia Planum are not holding up very well under renewed scrutiny with higher-resolution, more recent spacecraft data.

"Most scientists don't want to work on the flat things," noted geologist Tracy Gregg of The University at Buffalo, State University of New York. So, after early Mars scientists decided Hesperia Planum looked like a lava-filled plain, no one really revisited the matter and the place was used to exemplify something rather important: The base of a major transitional period in the geologic time scale of Mars. The period is aptly called the Hesperian and it is thought to have run from 3.7 to 3.1 billion years ago.

But when Gregg and her student Carolyn Roberts started looking at this classic Martian lava plain with modern data sets, they ran into trouble.

"There's a volcano in Hesperia Planum that not many people pay attention to because it's very small," Gregg said. "As I started looking closer at the broader region -- I can't find any other volcanic vents, any flows. I just kept looking for evidence of lava flows. It's kind of frustrating. There is nothing like that in the Hesperia Planum."

"A likely cause of this trouble is the thick dust that blankets Hesperia Planum," she said. "It covers everywhere like a snowfall."

So she turned her attention to what could be discerned on Hesperia Planum: about a dozen narrow, sinuous channels, called rilles, just a few hundred meters wide and up to hundreds of kilometers long. These rilles have no obvious sources or destinations and it is not at all clear they are volcanic.

NASA/GSFC/Arizona State University Lunar Reconnaissance Orbiter image "Secrets of Schroeteri" Vallis Schroeteri is a sinuous rille on the moon; its inner rille diverges from the primary rille near arrow. Larger Image.

THEMIS daytime infrared image mosaic (courtesy of ASU/NASA/JPL) of Mars with north is at the top. Image is centered at 116.3 deg E and 25.0 deg S Larger Image. "The question I have is what made the channels,"; said Gregg. Was it water, lava, or something else? "There are some lavas that can be really, really runny. And both are liquids that run downhill." So either is a possibility.

To begin to sort the matter out, Gregg and Roberts are now looking for help on the Moon. Their preliminary findings will be presented Wednesday, 12 Oct., at the meeting of The Geological Society of America in Minneapolis.

"On the Moon we see these same kinds of features and we know that water couldn't have formed them there," Gregg said. So they are in the process of comparing channels on the Moon and Mars, using similar data sets from different spacecraft, to see if that sheds any light on the matter. She hopes to find evidence that will rule out water or lava on Hesperia Planum.

"Everybody assumed these were huge lava flows," said Gregg. "But if it turns out to be a lake deposit, it's a very different picture of what Mars was doing at that time." It would also make Hesperia Planum a good place to look for life, because water plus volcanic heat and minerals is widely believed to be a winning combination for getting life started.

"The 'volcanic' part is an interpretation that's beginning to fall apart," said Gregg. "What is holding up is that the Hesperian marks a transition between the Noachian (a time of liquid water on the surface and the formation of lots of impact craters) and the Amazonian (a drier, colder Mars)."

She has found that other scientists are interested in her work because of its possible implications on the Mars geological time scale. Gregg is not worried that Mars history will need to be rewritten, but she does suspect that Hesperia Planum is a lot more complicated than people has long thought.

Presentation Time: 3-3:15 PM, Wed., 12 Oct. 2011 Where: Minneapolis Convention Center, Room L100H-J What: 284-6: Sinuous Rilles in Hisperia Planum, Mars: Water, Lava, or Something Else?

Session No. 284: Terrestrial Analogs in Solar System Studies

August 11, 2011

Video: Comparing Lunar Orbiter and LRO Images of the Apollo 11 Landing Site

This video compares the best Lunar Orbiter Image and one of the best LRO Images of the Apollo 11 landing site. The photos were taken over 40 years apart. The Lunar Orbiter photo was taken in 1967 before Apollo 11 landed on the moon, whereas the LRO image was taken on December 22, 2009 and shows the LM Eagle's descent stage resting on the lunar surface.

LOIRP Mentioned at Apollo 11 Anniversary Celebration, MoonViews

"Our Apollo 11 landing site image was used to set the context for the LRO picture. Mention was also made of the LOIRP - Lunar Orbiter Image Recovery Project. Here is a video shot with a small camera of Tyson's comments regarding our image."

Damaged Tape and Murky Moon Views, MoonViews

"We recently released two Apollo landing site images - Apollo 12 and Apollo 14 and had embarked upon getting an nice crisp image of the Apollo 11 landing site in time for the anniversary."

June 3, 2011

Lee Scherer

Lee Scherer, KSC's 2nd leader, dies at 91, Florida Today

"Lee Scherer, who led Kennedy Space Center through its last major transition between human spaceflight programs, will be remembered in a service later this month near his home in San Diego, Calif. Scherer, KSC's second center director from 1975 to 1979, died May 7 at age 91. ... Joining NASA in 1962 on loan from the Navy, Scherer managed a program that launched five lunar orbiters mapping Apollo landing sites."

Keith's note: We were beyond thrilled to have Lee Scherer visit our Lunar Orbiter Image Recovery Project (LOIRP) operation at NASA Ames in November 2008 as we released the newly retrieved and restored "Earthrise" image taken by Lunar Orbiter 1 in 1966. As he walked into Building 596 (aka "McMoons" - it used to be a McDonalds) Lee was clearly stunned to see that we had found all of this old stuff and got it working again. We all had a tear in our eyes - it was like being in a Star Trek episode where something comes back from the past to a future where it simply should not exist.

At one point Lee told a story about some kids in his neighborhood who asked about an old picture he had hanging in his garage. Of course, it was the famous Earthrise image. You can imagine his reaction to seeing it presented in all its glory in a way not possible (technically) in 1966 - but in a way that now truly matched what one's mind's eye saw when this image first went viral in 1966. More than a generation later this image inspired the mission patch for STS-130 - the shuttle flight that carried a piece of the summit of Mt. Everest and four small Apollo 11 moon rocks that had been to the summit up to the International Space Station. The past meets the future once again.

Ad astra Lee.

(L to R) Greg Schmidt (NLSI), astronaut Yvonne Cagle, Lee Scherer, Lee's son, and LOIRP co-lead Dennis Wingo. Next to Lee Scherer are the original Lunar Orbiter tapes still backed in their archival containers.

(L to R) LOIRP co-lead Dennis Wingo, Lee Scherer, LOIRP engineer Ken Zin, and Nancy Evans. Ken ZIn is explainin gthe restoration process hwereby orignal FR-900 tape drives were brought back to life after 40 years.

(L to R) Lee Scherer, Nancy Evans, and Dennis Wingo stand in front of a restored FR-900 tape drive

Lee Scherer signs the newly operational FR-900 tape drive used to read the original Lunar Orbiter data tapes.

TheLunar Orbiter 1 "Earthrise" image of Earth taken on 23 August 1966. Top: original- bottom: restored by LOIRP.

May 7, 2011

FR-900 Tape Drives and Lunar Orbiter Featured In Ampex Readout Newsletter April 1967

Note: Thanks to Al Kossow at the Computer History Museum for finding and scanning these pages in for us.

Excerpt: "Fifty Years of Data in One Week Recently, Oran W. Nicks, NASA's Director of Lunar and Planetary Programs, remarked: "one astronomer has said that more information has been obtained in the first seven days of the Lunar Orbiter I project than in the last 50 years of study of the Moon." Truly, the matchless cooperation and inspired creativity exhibited in the design and construction of Lunar Orbiter spacecraft and, supporting equipment by NASA, the scientific community, and American industry has helped us to take those longer-strides that President Kennedy called for in 1961 when he first spoke of the Apollo landing of a man on the Moon and returning him safely to the earth. Preceeding our men on the Moon, are three unmanned missions that are mapping possible landing areas, testing surface strength and composition, and establishing the launch, guidance and navigation technology, for a successful manned excursion. Ranger (now completed) and Surveyor are managed by Jet Propulsion Laboratory in Pasadena, California. Overall Lunar Orbiter management is by the Langley Research Center, Hampton, Virginia. The Jet Propulsion Laboratory provides tracking and data acquisition support for the Orbiter program."

Newsletter is presented below

Continue reading "FR-900 Tape Drives and Lunar Orbiter Featured In Ampex Readout Newsletter April 1967" »

March 10, 2011

Student Project: New Lunar Crater Search Using LROC-NAC Vs LOIRP Lunar Orbiter Images

Figure 1: Lunar Orbiter II sub-frame 2070H2 superimposed on LROC NAC image M116154252LE.

N. G. Moss1 and T. M. Harper2, M. B. Motta3, A. Epps4
1LOIRP Project P.O. Box 375 Moffett Field, CA 94035, Neulynm-at-yahoo.com, 2 LOIRP Project P.O. Box 375 Moffett Field, CA 94035, travis.martin.harper-at-gmail.com. 3 LOIRP Project P.O. Box 375 Moffett Field, CA 94035. Mbmotta-at-yahoo.com., 4Skycorp, Building 596, NASA Ames Research Park, Moffett Field, CA 94035, Austin.epps-at-gmail.com

Submitted to 42nd Lunar and Planetary Science Conference.

Introduction: In 1966 and 1967 NASA sent five Lunar Orbiters to photograph nearly the full surface of the moon. Each orbiter launched took images of different areas of the moons surface, or very high resolution images corresponding to lower resolution images previously taken. Lunar Orbiter Image Recovery Project (LOIRP) is one of the several projects using these images for research. We are in possession of 1,478 2" original analog tapes from 3 Deep Space Network ground stations. We have taken hundreds of those analog tapes and converted them to digital form; with the majority of them being from Lunar Orbiter II which took images with .8 to 1 meter resolution.

Continue reading "Student Project: New Lunar Crater Search Using LROC-NAC Vs LOIRP Lunar Orbiter Images" »

A Sixth Orbiter Mission?

Source: DESTINATION MOON: A History of the Lunar Orbiter Program, NASA TM-3487

[303] Even before Lunar Orbiter V flew, the Office of Space Science and Applications was entertaining the prospect of flying a sixth Orbiter mission. Boeing had nearly enough parts to assemble another spacecraft at an initial cost of about $13 million. A gamma-ray experiment also existed which scientists desired to fly on a sixth Orbiter. Its inclusion would raise the cost of the mission by about $3 million. However, the necessity to relocate personnel on the Lunar Orbiter team to other jobs presented a major problem blocking another mission.1

Continue reading "A Sixth Orbiter Mission?" »

January 20, 2011

Video: The Lunar Orbiter Camera at George Eastman House

January 18, 2011

NASA Lunar Orbiter Video: Assignment, Shoot the Moon (1967)

National Archives: "This film summarizes the exploration of the Moon conducted through unmanned Ranger, Surveyor and Lunar Orbiter spacecraft, and shows how such detailed data and photography contributed to the first manned flights to the Moon. The film describes the complexities of closeup photography of the Moon, and includes good views of craters, mountain ranges and other lunar terrain. This film received the following awards: Golden Eagle Certificate, Council on International Nontheatrical Events (CINE), 1968; and the Award of Merit, American Film Festival, 1968."

Transcript below

Continue reading "NASA Lunar Orbiter Video: Assignment, Shoot the Moon (1967)" »

January 14, 2011

Destination Moon: A History of the Lunar Orbiter Program

Bruce K. Byers, NASA Headquarters, Washington, D.C. 1977, NASA TM X-3487 PDF HTML

"In June 1967, as a member of the NASA History Office Summer Seminar, I began work on a history of the Lunar Orbiter Program, then in its operational phase. My objective was to document the origins of the program and to record the activity of the missions in progress. I also wanted to study the technical and management aspects of the lunar orbital reconnaissance that would provide the Apollo Program with photographic and selenodetic data for evaluating the proposed astronaut landing sites."

Continue reading "Destination Moon: A History of the Lunar Orbiter Program" »

March 11, 2010

Dumpster Diving for Science

NASA Dives Into Its Past to Retrieve Vintage Satellite Data, Science (subscription)

"Last month, researchers working out of an abandoned McDonald's restaurant on the grounds of NASA Ames Research Center recovered data collected by NASA's Nimbus II satellite on 23 September 1966. The satellite soared over Earth in a polar orbit every 108 minutes, taking pictures of cloud cover and measuring heat radiated from the planet's surface, and creating a photo mosaic of the globe 43 years ago. The resulting image is the oldest and most detailed from NASA's Earth-observing satellites. It's also the latest success story in what researchers call techno-archaeology: pulling data from archaic storage systems. Once forgotten and largely unreadable with modern equipment, old data tapes are providing researchers with new information on changes in the surfaces of Earth and the moon..."

... The LOIRP team obtained $750,000 from NASA and private enterprise and enlisted the assistance of a retired Ampex engineer. They cleaned, rebuilt, and reassembled one drive, then designed and built equipment to convert the analog signals into an exact 16-bit digital copy. "It was like dumpster diving for science," says Cowing, co-team leader at LOIRP. In November 2008, the team recovered their first image: a famous picture of an earthrise taken by Lunar Orbiter 1 on 23 August 1966. The team's new high-resolution version was so crisp and clear that it revealed many previously obscured details, such as a fog bank lying along the coast of Chile. "We thought if the Earth's surface looks that good a quarter of a million miles away, what does the moon's surface look like 100 miles beneath it?" says Cowing."

Click on image to enlarge

March 10, 2010

Nimbus II and Lunar Orbiter 1 Imagery: A New Look at Earth in 1966

On 23 August 1966, the Lunar Orbiter 1 spacecraft took a photo of the Earth as seen from lunar orbit. This image, albeit grainy, quickly became an icon of the Space Age. This "earthrise" photo, while spectacular at the time, was never retrieved and processed to the full level of detail contained in the image. This was due in great part of the available technology at the time. Computer image processing was in its infancy.

Forty two years later, the Lunar Orbiter Image Recovery Project (LOIRP) managed to retrieve the image from original data tapes using restored tape drives from the 1960s. In so doing the level of detail present in the image was unparalleled. Subsequently, other images have been retrieved with the ultimate goal of obtaining all of the images returned by the five Lunar Orbiters.

One of the striking aspects of this newly enhanced image is the amount of detail that can be seen on Earth at a resolution of perhaps 1 km/pixel taken from a quarter of a million miles away. Among the details visible is the extent of the southern polar ice cap.

The LOIRP required a lot of what has come to be called "techoarchaeology" that is, going back in time to the original data and recording devices, using modern enhancements. The expertise gained by the LOIRP team eventually caught the attention of the folks at the National Snow and Ice Data Center (NSIDC).

Data from the Nimbus weather and earth observation satellite - in orbit at the same time as the Lunar Orbiters were circling the Moon - had languished for years in the national archives until John Moses NASA Goddard Space Flight Center had them digitized.  

Dr. Walt Meir of the National Snow and Ice Data Center, after seeing the work that the LOIRP team had done in potentially identifying the Antarctic sea ice in the Lunar Orbiter 1 Earthrise image, and recognizing the similarity between the raw data of the Nimbus and Lunar Orbiter data, provided a grant to the LOIRP team to process the Nimbus data into a modern format and to correct image artifacts that are common to both types of images.  

The LOIRP team accomplished this, and rendered the images into the Google Earth format using a variety of internally developed techniques and elements of the NASA Ames developed NASA World Wind Java software development kit.

To date some of the images taken by Nimbus II have been enhanced and mapped into Google Earth. One date in particular was of interest to the LOIRP - 23 August 1966. As the images were enhanced and dropped into Google Earth it became clear that we have imagery that overlapped in time to show the weather on that late August day as evening crept up on Africa and Europe.

In New York City, just over the Earth's limb as seen from lunar orbit, the Beatles were preparing to play at Shea Stadium ...

You can download a KMZ file of these images here for viewing in Google Earth.

Related Links

- Techno-Archaeology Rescues Climate Data from Early Satellites
- LOIRP Aids In Finding Google Earth Images from 1966
- Newly Restored Lunar Orbiter Image of Earth and Moon (Detail)

The original Lunar Orbiter 1 image of Earth on 23 August 1966 (click on image to enlarge)

Nimbus II imagery of Earth on 23 August 1966 (click on image to enlarge)

Overlap of Nimbus II imagery onto Lunar Orbiter 1 imagery (click on image to enlarge)

February 4, 2010

Lunar Echoes on STS-130

The STS-130 patch was designed by the crew to reflect both the objectives of the mission and its place in the history of human spaceflight. The main goal of the mission is to deliver Node 3 and the Cupola to the International Space Station (ISS). Node 3, named "Tranquility," will contain life support systems enabling continued human presence in orbit aboard the ISS. The shape of the patch represents the Cupola, which is the windowed robotics viewing station, from which astronauts will have the opportunity not only to monitor a variety of ISS operations, but also to study our home planet.

The image of Earth depicted in the patch is the first photograph of the Earth taken from the moon by Lunar Orbiter I on August 23, 1966. As both a past and a future destination for explorers from the planet Earth, the moon is thus represented symbolically in the STS-130 patch.

The Space Shuttle Endeavour is pictured approaching the ISS, symbolizing the Space Shuttle's role as the prime construction vehicle for the ISS. The NASA insignia design for shuttle flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the form of illustrations by the various news media. When and if there is any change in this policy, which we do not anticipate, it will be publicly announced. STS130-S-001 (September 2009) --- high res (1.5 M) low res (98 K)

January 18, 2010

Lunar Orbiter Photographic Atlas of the Near Side of the Moon, By Charles Byrne

Lunar Orbiter Photographic Atlas of the Near Side of the MoonLunar Orbiter Photographic Atlas of the Near Side of the Moon, By Charles Byrne

In 1967, Lunar Orbiter Mission 4 sent back to Earth a superb series of photographs of the surface of the Moon, despite severe degradation caused by scanning artifacts and the reconstruction processes involved in transmission from lunar orbit.

Using 21st century techniques, Charles Byrne, previously System Engineer of the Apollo Program for Lunar Orbiter Photography, has removed the artifacts and imperfections to produce the most comprehensive and beautifully detailed set of images of the lunar surface.

The book has been organized to make it easy for astronomers to use, enabling ground-based images and views to be compared with the Orbiter photographs. The photographs are striking for their consistent Sun angles (for uniform appearance). All features have been identified with their current IAU-approved names, and each photograph has been located in terms of latitude and longitude. To help practical astronomers, all the photographs are systematically related to an Earth-based view.

A CD is included with the book, providing the enhanced and cleaned photographs for screen viewing, lectures, etc.

The Far Side of the Moon: A Photographic Guide

The Far Side of the Moon: A Photographic GuideThe Far Side of the Moon: A Photographic Guide, By Charles Byrne

The far side of the Moon, also called the 'dark side of the Moon' was unknown to humanity until the Luna and Lunar Orbiter pictures were returned to Earth. Even since then, its nature has puzzled researchers. Now we know that a giant impact struck the near side with such force that it created the 'near side megabasin', opening the way for floods of mare and sending vast amounts of ejecta to the far side. "The Far Side of the Moon" explains this event and also documents the appearance of the features of the far side with beautiful pictures from Lunar Orbiter. As in the previous volume, "The Lunar Orbiter Photographic Atlas of the Near Side of the Moon", the author has taken the original images and cleaned them of system artefacts using modern digital image processing. The best photographic coverage of the far side of the Moon has been the 150 photos taken by the Lunar Orbiter series. The other sources are pictures taken by the Apollo Command Module, which were limited to the equatorial regions, and the Clementine mission, which took pictures at a high sun angle that washed out the topography of the features. Until now, the far side Lunar Orbiter photos have only been available with strong reconstruction lines, but appear here for the first time as complete photographs, unmarred by imaging and processing artefacts. Also, this is the first book to explain in detail how the far side was deeply covered by ejecta from the Near Side Megabasin and modified by later impacts. A CD-R accompanies the book, and contains all the enhanced and cleaned photographs for use by the reader in screen viewing, lectures, etc.

January 17, 2010

Atlas and Gazetteer of the Near Side of the Moon

NASA SP-241, Gutschewski, G. L.; Kinsler, D. C.; Whitaker, E., NASA SP-241, 1971

Download document (190 MB PDF)

This atlas and gazetteer is a photographic and tabular compilation of named lunar features appearing on the near side side of the Moon. To provide an easy method of locating lunar features in the atlas, the names have been annotated on the photographs, which are accompanied by locational data regarding the named features.

Five indices comprising he gazetteer are provided for appropriate cross-referencing of the high resolution rbiter IV photography and the mediaum-resolution photgraphy onbtained from the other orbiter missions.

Lunar Orbiter Photographic Atlas of the Moon

By David E. Bowker and J. Kenrick Hughes, NASA SP-206, 1970

Download document (12 MB PDF) Online version (LPI)

During 1966 and 1967 the National Aeronautics and Space Administration launched five Lunar Orbiter spacecraft to obtain photographs from orbit of the surface of the Moon. The reconstructed photographs and support data are now on file at the National Space Science Data Center (NSSDC), Goddard Space Flight Center, Greenbelt, Md. The purpose of this Atlas is to present a selection of these photographs which provides essentially complete coverage of the near side and far side of the Moon in greater detail than any publication now in existence.

Continue reading "Lunar Orbiter Photographic Atlas of the Moon" »

The Moon as Viewed by Lunar Orbiter

By L. J. Kosofsky and Farouk El-Baz, NASA SP-200, 1970

Download document (297 MB PDF)

THE PROGRAM

The Lunar Orbiter program was conceived, together with the Ranger and Surveyor programs, with the primary objective of providing information essential for a successful manned Apollo lunar landing. The Lunar Orbiter program comprised five missions, all of which were successful. As the primary objectives for the Apollo program were essentially accomplished on completion of the third mission, the fourth and fifth missions were devoted largely to broader, scientific objectivesphotography of the entire lunar nearside during Mission IV and photography of 36 areas of particular scientific interest on the nearside during Mission V. Photography of the farside during the five missions resulted in an accumulated coverage of more than 99 percent of that hemisphere. The detail visible in the farside coverage generally exceeds that previously attained by Earth-based photographs of the nearside; in some areas objects as small as 30 meters are detectable.

Initiated in early 1964, the Lunar Orbiter program included the design, development, and utilization of a complex automated spacecraft technology to support the acquisition of detailed photographs of the lunar surface from circumlunar orbit. The five spacecraft were launched at 3-month intervals between August 10, 1966, and August 1, 1967.

In addition to its photographic accomplishments, the program provided information on the size and shape of the Moon and the major irregularities of its gravitational field. This selenodetic information was derived from the tracking data. Micrometeoroid and radiation detectors, mounted on the spacecraft for operational purposes, monitored those aspects of the lunar environment.

Continue reading "The Moon as Viewed by Lunar Orbiter" »

Guide to Lunar Orbiter Photographs

Thomas P. Hansen, NASA Langley Research Center, Hampton, Virginia
NASA SP-242

Download PDF

The Lunar Orbiter program initiated in early 1964 consisted of the investigation of the Moon by five identical unmanned spacecraft. Its primary objective was to obtain detailed photographs of the Moon. This document presents information on the location and coverage of all Lunar Orbiter photographs and is one in a series of four NASA Special Publications documenting Lunar Orbiter photography. The others are references 1 to 3. Reference 1 contains 675 photographic plates and provides coverage of the complete Moon with more detail than any other publication. Reference 2 is a collection of approximately 180 selected photographs and portions thereof at enlarged scale, and includes captions for each photograph. Reference 3 shows each named feature on the near side on annotated highresolution frames from mission IV. It also includes (1) an alphabetical index of features, (2) cross-indexes between listings in the catalog of the University of Arizona and the catalog of the International Astronomical Union which was published in 1935, and (3) listings of named lunar features on the near side covered during missions I, 11, 111, and V, and their photograph numbers.

Continue reading "Guide to Lunar Orbiter Photographs" »

January 16, 2010

Lunar Orbiter Photographic and Supporting Data

NSSDC 71-13 May 1971

Download document (25 MB PDF)

This document contains photographic supporting data for Lunar Orbiters 1 through 5. These data, which were compiled by the National Space Science Data Center (NSSDC), are necessary for the interpretation and analysis of high- and medium-resolution Lunar Qrbiter'photographs. This document describes and presents the NSSDC Lunar Orbiter Photographic supporting Data printouts. Definitions of the elements of the data base, and the search capabilities of the NSSDC system used to produce these and other printouts are also included.

Continue reading "Lunar Orbiter Photographic and Supporting Data" »

January 14, 2010

Data User's Note: Lunar Orbiter Photographic Data

NSSDC 69-05, Beeler and Michlovitz, June 1969

Download document (2.7 MB PDF)

The primary purpose of this Data User's Note is to announce the availability of Lunar Orbiter 1-5 pictorial data and to aid the investigator in the selection of Lunar Orbiter photographs for study. In addition, this Note can give some guidance to the interpretation of the pictures. As background information, the Note includes a breif description of the mission objectives and the photographic subsystem. The National Space Science Data Center (NSSDC) can provide all forms of photographs described in the section on Format of Available Data. It is recommended however, that the user frst order the 35-mm film to facilitate selection of those frames for which high-quality reproductions are needed.

December 7, 2009

Seeing Boulders on The Moon

[Click on image to enlarge] Keith's note: Tonight we are testing out our newest Mac computer at the Lunar Orbiter Image Recovery Project located at NASA ARC. We'll be using this machine (8 processors and 10 TB of storage) to do near-real time processing of imagery once we have pulled it off of original Lunar Orbiter analog data tapes using our restored FR-900 tape drives. We hope to do a live webcast this coming Thursday so that you can look over our shoulders as we bring another image to light for the first time in more than 40 years.

Tonight, as we were flying through a portion of one of the images we came across a boulder field. Here is the image archive at LPI - subframe H3, Framelet 323. The image was taken by Lunar Orbiter II on 20 Nov 1966 at an altitude of 52.2 miles with a ground resolution of 1.14 meters/pixel. The framelet image shown here is approximately 220 meters across. You can clearly make out a number of boulders around 1 meter in size sitting on the surface.

September 20, 2009

Lunar Orbiter's Kodak Camera Profiled

The Kodak Lunar Orbiter Camera, American Society of Cinematographers Blog

"The recent media attention given to the 40th anniversary of the Apollo 11 mission to the moon, with its dramatic restored video of Neil Armstrong’s first steps onto the lunar surface, has re-ignited our nation’s interest in extra-terrestrial exploration. But this mission would not have been possible had it not been for a series of lunar surface mapping missions that were made several years before.  It is a story that is not as dramatic as that of the first humans to walk on the moon. But it is a fascinating story, nonetheless, of the way that the entire Apollo program pushed beyond the then perceived limits of technology. And the Eastman Kodak Company was a major player."

"The recent AMIA (Association of Moving Image Archivists) symposium held at the Dunn Theater of the AMPAS Pickford Center in Hollywood featured jaw-dropping presentations by Al Sturm and Ralph Sargent of the history of this program as well as the forensic-like work to find and restore its lost images. It is this latter theme I will take up soon along with the recent new photos also taken by a high resolution Kodak digital camera."

September 10, 2009

LOIRP Releases Recovered Lunar Orbiter III Image of Surveyor 1 On the Lunar Surface

This image (LO3_194_H3) was taken by Lunar Orbiter III on 22 February 1967 at 5:24:14 GMT at an altitude of 54.27 km above the lunar surface. High resolution frame 3 clearly shows the Surveyor 1 spacecraft sitting on the lunar surface complete with a long shadow.

Surveyor 1 landed on the Moon on 2 June 1966 in the Ocean of Storms (Oceanus Procellarum) at 2.45 degrees South latitude, 43.22 degrees West longitude.

Larger view

This image has been recovered in its original high resolution format by LOIRP staff from original Lunar Orbiter project data tapes using restored tape drive hardware and will eventually be submitted to the PDS (Planetary Data System).

A full resolution version of this image will be placed online at the NASA Lunar Science Institute.

The Lunar Orbiter Image Recovery Project (LOIRP) is located at the NASA Ames Research Center in Moffett Field, CA. Funding and support for this project has been provided by NASA Exploration Systems Mission Directorate, NASA Innovative Partnerships Program, NASA Lunar Science Institute, NASA Ames Research Center, Odyssey Moon LLC, SkyCorp Inc., and SpaceRef Interactive Inc.

For more information on the Lunar Orbiter Image Recovery Project (LOIRP) visit http://www.moonviews.com

For information on NASA's Lunar Science Institute visit http://lunarscience.arc.nasa.gov/

For information on NASA's Exploration Systems Mission Directorate visit http://www.nasa.gov/exploration/

August 20, 2009

LOIRP and LRO Confirm That Humans Walked on the Moon

Yesterday the LRO team released a new image of the Apollo 14 landing site. You can clearly make out the paths that the crew walked as well as the location of the Apollo 14 Antares Lunar Module Descent Stage.

In June 2009 LOIRP issued its own view and analysis of this landing site - as seen by Lunar Orbiter III back in 1967.

Comparing our high resolution image of the site with that taken by LRO clearly shows no feature where Antares' Descent Stage now stands [larger image]. While the resolution of the Lunar Orbiter image (0.8 meters/pixel) would probably not reveal astronaut tracks in great detail, we're rather certain that it would have seen an object the size of Antares' Descent Stage.

As such, we're pretty certain that the Apollo 14 mission landed on the Moon!

August 19, 2009

Technoarchaeology: Finding The Right Image in a Room Full of Tapes

Image: a portion of our set of Lunar Orbiter data tapes at McMoon's - an abandoned McDonalds onsite at NASA Ames Research Park, home of the LOIRP - Lunar Orbiter Image recovery Project.

Here at the LOIRP (Lunar Orbiter Image Recovery Process) project there are two different phases of the image retrieval process that are distinct from each other. The second phase, the production of the vast majority of all the of the Lunar Orbiter images, will simply involve putting tapes on the tape drive machines, acquiring the data, and processing them into images.

However, we're still in the first phase of the project where we need to search through tapes in a painstaking fashion just to find the images we are interested in downloading. Once we find what we are looking for, downloading is a snap and can be done in a matter of hours.

Finding the images using a jumbled nomenclature and labeling system last used more than 40 years ago is part of what we call "Technoarchaeology".

Continue reading "Technoarchaeology: Finding The Right Image in a Room Full of Tapes" »

LOIRP Releases Restored Lunar Orbiter IV Image of the Lunar South Pole

This image (LO_IV 4094) of the Moon's south pole was taken by Lunar Orbiter IV on 16 May 1967 at 16:00:08 GMT. This image is identified as Frame 4094,high resolution subframe h1. Large craters visible in this image include Shackleton, Amundsen, and Scott.

A larger web version of this image is online here. A full, high resolution version of this image is online here at the NLSI.

August 10, 2009

LOIRP Releases Enhanced Restored Version of the "Image of the Century" Plus Additional Subframes of Crater Copernicus

This is a re-release of Life Magazine's "Image of the Century" from 1966. The performance of our hardware and software image processing methods has been significantly enhanced to remove some of the banding artifacts that are derived from imperfections in the spacecraft image scanning hardware. This image of Copernicus crater was taken from a spacecraft altitude of 45 km (27.1 miles) and is approximately 207.7 km (~125 miles) to the center of the image.

An interesting aspect to this image is that with this oblique view, recent impacts of small craters have much more brightness than older craters of the same size. This suggests the value of oblique photography in doing crater aging studies as well as multispectral remote sensing of excavated materials from the craters. You can view a larger version [900 K JPG] of this image on your screen here. You can download the full resolution image [505 MB TIFF] here at the NLSI.

Continue reading "LOIRP Releases Enhanced Restored Version of the "Image of the Century" Plus Additional Subframes of Crater Copernicus" »

Lunar Orbiter In The News

Local engineer critical to NASA's Lunar Orbiter project

"A crescent earth appears suspended in black space in the upper portion of the image with the lunar landscape dominating the foreground. That image may have never been captured if not for a Boeing crew member who suggested turning the spacecraft around so the camera pointed toward Earth, a move not designed in the original mission playbook, explained Knittel. "It was pretty awesome," Knittel recalled about the first time he saw the photograph which was taken Aug. 23, 1966. The image transmitted back to Earth from the satellite in several separate strips of 35-mm film and was eventually assembled side by side to create the finished photo. Since the picture arrived in pieces, at first the crew monitoring its arrival only saw the moon surface and were momentarily dejected believing that the camera on board the spacecraft had missed photographing the earth, said Knittel. Then the earth's round image slowly appeared. "When they saw that picture, I understand that there were a lot of teary eyes," he said. "It was sort of like birthing a baby, I guess. It was such a big event."

August 6, 2009

LOIRP Releases Recovered Lunar Orbiter V Image of "Full Earth"

This image (LO_V-5030) of Earth was taken on 8 August 1967 at 09:05:11 GMT by the Lunar Orbiter V spacecraft in orbit around the Moon at an altitude of 5,872.85 km. This image has been described as being the first image ever taken of a "full Earth" from space. [Larger image]

Lunar Orbiter V was launched on 1 August 1967 arrived in a nearly polar orbit on 5 August at 12:48 p.m. EDT. Images were taken between 6-19 August and were sent back to Earth on 27 August 1967.

This is the orientation of Earth as Lunar Orbiter V snaped its photo from Lunar Orbit

It is easy to make out a number of geographic features in this image. [Larger image]

In addition, you can see that the detail of the clouds - especially over the Indian Ocean is much greater in this image. Further processing of this image should yield even greater detail. [Larger image]

This is one of only three images of the Earth taken from the five lunar orbiter spacecraft. In its full resolution form, you can easily see Sicily, Cyprus, the Caspian Sea, lake Bakial, and other features such as the Nile delta. The Chinese coast is visible on the upper right as well as India and Ceylon in the center of the image. In the lower right the Indonesian islands are also visible. The estimated resolution of the image on the Earth is approximately 5 kilometers.

This is the 2 inch tape reel on which this image was stored. Note on the label [much larger image] that "L.O.E." refers to "Lunar Orbiter E" aka "Lunar Orbiter V". The tape was recorded on day 238 of 1967 local time i.e. 26 August 1967. Starting at 06:34:38 GMT and ending at 07:26:10 GMT

This image was not in the original mission plan. According to Destination Moon: A History of the Lunar Orbiter Program (NASA TM X-3487):

"Photography commenced at 7:22 p.m. EDT on August 6. At this time the spacecraft took its first photograph of the Moon at a distance of about 6,000 kilometers from the lunar surface. The target was a previously unknown area of the far side. Then it executed a maneuver early on August 7 [294] that lowered the perilune to 100 kilometers while maintaining a 6,023-kilometer apolune. The spacecraft continued farside photography, exposing eighteen out of nineteen frames during the first part of the mission. The nineteenth was a "film set" frame, moved through the photo subsystem in an eight hour interval to prevent film from setting and Bimat from drying out. While this was a planned item In the film's budget, the decision which program officials made early on August 7 changed the next scheduled "film set" frame significantly. They decided to use it to take a photograph of the Earth with the 610 mm high-resolution camera lens instead of passing It unexposed through the system.

Site VA-9, as the Earth photograph was identified, had not been in the original plan. Program officials decided, however, that the position of Lunar Orbiter V relative to the Moon and the Earth and the Earth's position relative to the Sun afforded a very fine opportunity to take such a picture. The Langley program planning staff together with flight controllers implemented a plan to make an Earth photograph when the spacecraft neared apolune between orbits 7 and 8. Since the spacecraft's orbit geometry kept it in view of Earth at all times, the Moon would not appear in [295] the photograph.

Exactly seven hours twenty-three minutes elapsed between the exposure of the previous photograph of Site VA-8 and the moment when Lunar Orbiter V's camera made the historic picture of the nearly full Earth on August 8 at about 9:05 Greenwich Mean Time. Shutter speed was 1/100 second, but the Earth's high albedo caused some overexposure of the film. This was unavoidable. Later Langley Research Center photography specialists successfully applied image enhancement techniques, using magnetic tape video records of the readout of the photograph, to bring out details which would not have shown up in a negative reconstructed from the raw readout data. (Note that enhancement techniques did not involve any "doctoring" of photographic data in order to "show" something which was not there.)

Approximately 149° of arc of the Earth's surface appeared clearly in the photograph. It illustrated the possible synoptic weather observations that a satellite could conduct in cislunar space or that could be made from the Moon."

This image has been recovered in its original high resolution format by LOIRP staff from original Lunar Orbiter project data tapes using restored tape drive hardware and will eventually be submitted to the PDS (Planetary Data System).

A full resolution version of this image is now online at the NASA Lunar Science Institute here (1.07 GB TIFF)

The first image recovered by LOIRP was the iconic "Earthrise" image taken by Lunar Orbiter a year prior to this Lunar Orbiter V image.

The Lunar Orbiter Image Recovery Project (LOIRP) is located at the NASA Ames Research Center in Moffett Field, CA. Funding and support for this project has been provided by NASA Exploration Systems Mission Directorate, NASA Innovative Partnerships Program, NASA Lunar Science Institute, NASA Ames Research Center, Odyssey Moon LLC, SkyCorp Inc., and SpaceRef Interactive Inc.

For more information on the Lunar Orbiter Image Recovery Project (LOIRP) visit http://www.moonviews.com

For information on NASA's Lunar Science Institute visit http://lunarscience.arc.nasa.gov/

For information on NASA's Exploration Systems Mission Directorate visit http://www.nasa.gov/exploration/

July 22, 2009

LOIRP Featured by National Geographic

MOON PICTURES: 1960s Orbiter Images Restored, National Geographic

All these steps took their toll on the quality of the images: Much like making a photocopy of a photocopy, the images of the moon created 40 years ago were fairly fuzzy and lacking in detail. But some NASA scientists had the foresight to make magnetic tape recordings of the radio-wave transmissions mid-way through the process. Now, after recovering the decades-old recordings and refurbishing outdated tape drives, a team of volunteers has begun digitizing the most famous images from the 1960s Lunar Orbiter missions with much-improved clarity and detail.

APOLLO 11: New Before-and-After Photos of Moon Bases, National Geographic

"Despite extensive restoration efforts, this photo is fuzzier and grainier than many of the restored 1960s orbiter images because of repeated viewings of the magnetic tape on which the photo was recorded."

Lunar Orbiter In The News

Kodak has played big role in space program, Democrat and Chronicle

"Kodak designed and built the cameras and film processing used in the five lunar orbiters sent to photograph the moon’s surface in 1966 and 1967 in preparation for the manned landing. Those orbiters shot panoramic strips of the lunar surface and transmitted them back to Earth before the orbiters crashed into the moon, said Todd Gustavson, curator of technology at the George Eastman House."

To the Moon - with extreme engineering - Spontaneous, improvised - would it be allowed to happen now?, The Register

"It's a temptation, watching many of the 40th Anniversary retrospectives, to think of the Apollo space program as a triumph of power and industrial might. The superpowers' space programs were, of course, political and chauvinistic, designed to showcase national wealth. But there's a better way of looking at the program, Dennis Wingo reminded me recently. Masses of money helped put man on the Moon of course, but the Moon program is really a tale of engineering improvisation and human organisation. ... The Lunar Orbiter astonishes even today. It had to take pictures, scan and develop the film on board, and broadcast it successfully back to earth. Naturally, the orbiter had to provide its own power, orient itself without intervention from ground control, and maintain precise temperature conditions and air pressure for the film processing, and protect itself from solar radiation and cosmic rays - all within severe size and weight constraints. This was far beyond the capabilities of the newest spy satellites, which back then returned the film to earth in a canister, retrieved by a specially kitted-out plane. The Orbiter challenge was the Apollo challenge in miniature."

July 17, 2009

Damaged Tape and Murky Moon Views

Image: Our retrieved image with the location of Apollo 11's Eagle Descent Stage.

With the 40th anniversary of Apollo 11's landing on the Moon upon us, everything old is new - or so it would seem. Yesterday we saw digitally re-mastered footage released showing the first steps on the Moon in unprecedented clarity. Also this was made from a copy that itself was a copy. The original video, recorded live as the Moon walks were underway has slipped into history - either misfiled or, more likely, erased and reused years later - much like a floppy disk. That said, the new footage does provide a window into the past with detail heretofore unseen.

Another place where windows are being opened into the past is the Lunar Orbiter Image Recovery Project (LOIRP) housed at NASA Ames Research Center. Utilizing ancient FR-900 tape drives, thousands of pounds of long forgotten image tapes, lots of loaned help including retired engineers and scientists, some money (from NASA ESMD, ARC, IPP, and NLSI, SkyCorp, and SpaceRef Interactive, and Odyssey Moon) and an old abandoned McDonalds restaurant (it was available - we call it "McMoons"), we've been able to bring these images back to life at resolutions greater than ever seen before. In many cases, until Lunar Reconnaissance Orbiter (LRO) takes new images, thee tapes represent the highest resolution images of the Moon ever taken from orbit.

As we ponder the sad news that the original Apollo 11 video has been lost, it is important to note that our Lunar Orbiter tapes might otherwise have been destroyed several years ago had not a stop order been placed on their destruction due to NASA's search for Apollo 11 tapes and data. One project's sad news is another's execution reprieve.

Among our successes has been bringing the iconic Earthrise and Copernicus back to life in unprecedented detail. This time we need to report a major disappointment.

We recently released two Apollo landing site images - Apollo 12 and Apollo 14 and had embarked upon getting an nice crisp image of the Apollo 11 landing site in time for the anniversary.

Alas, unlike the unprecedented resolution we obtained for these two sites, Apollo 11 was a let down. The image is murky and far less clear than previous images. This is not due to the Lunar Orbiter spacecraft or our restored hardware. Rather, we expect, it had to do with someone playing this tape years ago and getting it jammed for an instant. Alas, the interesting part of this tape is framelet 411 which shows the Apollo 11 landing site. So, if there was a natural place on this tape to be paused, rewound, and played again and again and again, it is this location. Little surprise that the chance for damage to this portion of the tape occurred.

Our collection of tapes covers the entire five mission Lunar Orbiter project. While we are getting better at deciphering the nomenclature and labeling on the tapes, we still have much to learn. We can now find a specific tape and image in a straight forward process but have still only scratched the surface. And, paradoxically, we seem to have more tapes marked "Lunar Orbiter V" than we need to contain all of the images from that mission. We suspect that we have two (or more) archival collections mixed in or (for some reason) multiple copies of the same images. The only way to know for sure is to look at every tape - one by one.

The path to getting this Apollo 11 landing site image was complicated. The image was taken by Lunar Orbiter V on 12 August 1967 at 22:21:13.809 GMT at an altitude of 98. km. Properly retrieved, the resolution of our image should be 2.387 meters per pixel.

After our first round of image retrievals, the heads for our FR-900 tape drive needed to be refurbished. This is an expensive and time consuming process with only one or two places in the world capable of doing it. With the heads refurbished we were prepared to run the tape. As we did we found out that our custom made frame grabber had a bad chip which needed to be replaced.

Once the gear was good to go, the process of running the tape began. There was an ominous note on the tape can that a section of the tape might be damaged. We soon discovered that indeed there was some damage to a 4 minute segment and it was the portion we were most interested in.

Undaunted, Ken Zin, our experienced video tape drive engineer, Al Sturm our electronics guru, and Austin Epps, our vigilant student intern worked long hours to get everything working to see what sort of image we could get. Austin ran the tape multiple times os as to get multiple images we could use to produce a super resolution image of the landing site.

Despite this attempt to coax a little clarity out of the noise, the damage to the tape precluded an image of the quality we had hope for - and had achieved for other images. That disappointment aside, we feel that it is important to show our failures and disappointments as well as our crowning achievements. As you will see when you compare it to the best Lunar Orbiter images, the resolution is low. Yet if you compare it with the new LRO images you can clearly see that something appeared in the image and that the regolith was disturbed around that object (humans).

We will be combing through the Lunar Orbiter tapes this weekend with the hope that there is another (hopefully undamaged) version of this image.

We feel that it is equally important to reveal our failures and disappointments as it is to crow about our successes. We expect to have many of both.

Such is the curse of Apollo 11 - for an event so epic in its nature, the frail means where by we captured it and the planning that led up to it - are fleeting. One more reason why all of this fragile history needs to be maintained with constant vigilance - else we lose all of this to the dust of time.

For more information on the Lunar Orbiter Image Recovery Project (LOIRP) visit http://www.moonviews.com

For information on NASA's Lunar Science Institute visit http://lunarscience.arc.nasa.gov/

Figure 1 Our retrieved image with the location of Apollo 11's Eagle Descent Stage.

Figure 2 Comparing our retrieved image and that scanned by the USGS

Figure 3 Comparing our retrieved image, one scanned by the USGS, and LRO's recent image.

June 15, 2009

Lunar Orbiter Image Recovery Project (LOIRP) Releases New Image of Apollo 12/Surveyor III Landing Site

This image LO3-154-H was taken by Lunar Orbiter III on 20 February 1967 and shows the landing site for both Surveyor III (landed 20 April 1967) and Apollo 12 (landed 19 November 1969).

Figure 1 shows the region without labels. Figure 2 shows major features plus EVA routes.

Figure 1: Apollo 12/Surveyor III landing site as seen by Lunar Orbiter III (larger image)

Figure: 2 Apollo 12/Surveyor III landing site as seen by Lunar Orbiter III with prominent features and EVA routes (larger image)

This image has been recovered in its original high resolution format from original Lunar Orbiter project data tapes using restored tape drive hardware and will eventually be submitted to the PDS (Planetary Data System).

LOIRP Note: We will be putting the full resolution version of this image on the NASA Lunar Science Institute website with the layers preserved for Photoshop for all you folks to have fun with! We only ask that you send us copies of what you do and credit us if you publish it anywhere.

For more information on the Lunar Orbiter Image Recovery Project (LOIRP) visit http://www.moonviews.com

For information on NASA's Lunar Science Institute visit http://lunarscience.arc.nasa.gov/

June 14, 2009

Lunar Orbiter Image Recovery Project (LOIRP) Releases New Image of the Moon's South Pole

This image was taken by Lunar Orbiter IV in May 1967 and shows the south pole of the Moon. Figure 1 shows the region without labels. Figure 2 shows major features plus notation regarding processing artifacts from the spacecraft's film processing system. The moon's south pole is located near the rim of Shackleton Crater.

Adjacent to the south pole is Shoemaker crater named in honor of famed planetary geologist Eugene Shoemaker. The Lunar Prospector spacecraft, carrying some of Shoemaker's ashes, was deliberately crashed in this crater in an attempt to see if any water ice would be thrown up by the impact.

The Lunar CRater Observation and Sensing Satellite (LCROSS) will be targeted to impact at the south pole of the moon. As such, the moon's polar regions are of great interest right now.

Figure 1 South Pole of the moon as seen by Lunar Orbiter IV (larger image)

Figure 2 South Pole of the moon as seen by Lunar Orbiter IV with prominent features and processing artifacts identified (larger image)

This image has been recovered in its original high resolution format from original Lunar Orbiter project data tapes using restored tape drive hardware and will eventually be submitted to the PDS (Planetary Data System).

LOIRP Note: We will be putting the full resolution version of this image on the NASA Lunar Science Institute website with the layers preserved for Photoshop for all you folks to have fun with! We only ask that you send us copies of what you do and credit us if you publish it anywhere.

For more information on the Lunar Orbiter Image Recovery Project (LOIRP) visit http://www.moonviews.com

For information on NASA's Lunar Science Institute visit http://lunarscience.arc.nasa.gov/

June 9, 2009

Lunar Orbiter Image Recovery Project (LOIRP) Releases New High Resolution Image of the Ocean of Storms

Larger version

The Lunar Orbiter Image Recovery Project (LOIRP) has released a newly-retrieved, high resolution image taken of the lunar surface 42 years ago.

This image was taken by Lunar Orbiter III (LPI data) in February 1967. This oblique photo shows the region around the crater Galilaei and Planitia Descensus in Oceanus Procellarum (the Sea of Storms). In the upper center of the image you can see the Great Wall of Procellarum.

This image has been recovered in its original high resolution format from original Lunar Orbiter project data tapes using restored tape drive hardware and will eventually be submitted to the PDS (Planetary Data System).

LOIRP Note: We will be putting the full resolution version of this image on the NASA Lunar Science Institute website with the layers preserved for Photoshop for all you folks to have fun with! We only ask that you send us copies of what you do and credit us if you publish it anywhere.

For more information on the Lunar Orbiter Image Recovery Project (LOIRP) visit http://www.moonviews.com

For information on NASA's Lunar Science Institute visit http://lunarscience.arc.nasa.gov/

April 12, 2009

KTVU: Old NASA Tapes Reveal Stunning New Moon Images; Resolution Unparalleled

Old NASA Tapes Reveal Stunning New Moon Images; Resolution Unparalleled

KTVU looked at several images, and the detail and clarity are astonishing. It's the difference between grainy 35mm film with several generations of degradation, and the 70mm film original.

"Dennis Wingo brought up NASA's publicly released photo from August 23, 1966, called "Earthrise." Time Magazine called it the "Photo of the Century" and it is certainly amazing even today. But on the next screen Wingo showed the digitized version from the original tracking station tapes. Zooming in on the first version, Earth looks a bit fuzzy, though you can make out cloud patterns. On the recovered version, you can see fog along the Chilean coast, ice floes near the Antarctic. It is truly astonishing.

"Using these and some other 1966 images, we may be able to help push NASA's climate data back in time a full decade, which will help with climate change studies," says Wingo.

On shots of the lunar surface, the first versions show a blurry shadow here, some grayish along the horizon. The digitized recovered image is crisp with the deep black of space hovering over a multi-shaded gray surface, almost as if you were looking out the window of some lunar highrise. You can see rocks the size of an office chair. Sharp shadows and almost a 3D effect."

Full story and Video at KTVU

March 16, 2009

What Lunar Orbiter 1 Was Seeing on 23 August 1966

Dennis Wingo and Keith Cowing at the LOIRP have been working to understand exactly what Lunar Orbiter 1 saw as it looked back at Earth on 23 August 1966. When LOIRP released its first retrieved image last year they included some attempts to correlate the Earth with rough boundries. In so doing they discovered that the time estimated back in 1966 was off by an hour or so. Dennis has now taken another stab at trying to understand what we all saw when Lunar Orbiter took this portrait of Earth. Click on image to enlarge. Image copyright 2009 LOIRP. Permission required for republication.

Image Archives

November 23, 2008

Recovered Lunar Orbiter Image makes Lunar Photo of the Day

Lunar Photo of the Day

"With much fanfare NASA has re-released the earliest US image of the Earth as seen from the Moon. This Orbiter 1 image was originally released in 1966 when it was a unique, never before seen view that dramatically documented our new prowess in space. The recent re-release follows a long saga of saving and repairing the large 40 year old tape drives needed to read the massive tapes that record the data."

November 21, 2008

NASA Earth Observatory Features Recovered Lunar Orbiter Image

Earthrise 1966, NASA Earth Observatory

"Long before man journeyed to the moon and looked back at the tiny, fragile planet that houses humanity, remote orbiters were sending back pictures of home. Sent to scope out potential landing sites on the Moon, the series of five Lunar Orbiters also sent back the earliest views of Earth from another celestial body. This image, taken in 1966 by Lunar Orbiter 1, is among the first views of Earth from the Moon. In the black-and-white image, a crescent Earth floats majestically behind the lumpy surface of the Moon. Though clouds swirl across the atmosphere, hiding nearly all identifying features on the surface beneath, the western edge of Africa is faintly visible in the upper left. The Earth's North Pole points toward the top of the image."

November 20, 2008

Wikipedia Update on Lunar Orbiter Imagery

Revised Wikipedia entry on Lunar Orbiter

"In 2007, the Lunar Orbiter Image Recovery Project (LOIRP) began a process to convert the Lunar Orbiter Images directly from the original analog video recordings of the spacecraft data to digital image format, a change which provided vastly improved resolution over the original images released in the 1960s. The first of these restored images were released in late 2008."

November 19, 2008

Video of Lunar Orbiter Image Release Press Conference

This video features a press Conference held at NASA Ames Research Center on 13 November 2008 where our first recovered Lunar Orbiter image was unveiled and discussed.

November 18, 2008

A Reborn Picture Spawns an Editorial

The Moon View, editorial, New York Times

"Last week, NASA released a newly restored image of a younger Earth. It was taken from Lunar Orbiter 1 in 1966, the first of several orbiters that helped gather data for the first moon landing in 1969. The photograph shows Earth just cresting the Moon’s curving horizon, the first picture of our planet framed by the surface of the Moon. When the photograph was published, in 1966, it looked like a newsprint version of a high-contrast snapshot from space, a stark scattering of whites and blacks. The data from the lunar orbiter was stored on old analog tape drives. Now, imaging experts at NASA have digitized those drives — mining data that could not be recovered when they were first made — and produced a high-resolution version of that historic photograph."

Lunar Orbiter in the News 18 November 2008

The Earth As First Seen From The Moon, Editorial Photographer

"When I was young and the first photographs from our space missions began to appear, I was fasinated by their mystery and grace. Science fiction was one of my passions then. When the Whole Earth Catalog began to publish the used this imagery to capture out attention and it is really our generation that had been the first to witness such sights."

Restored for posterity: The historic moment Earth was pictured from space for the first time, Daily Mail

"Later, clearer images would continue to inspire mankind, bringing back more and more images of Earth from space, but this is the one which captures the very second humanity gazed down on itself for the first time. And the image, showing the start of man's achievements in space, was followed less than a fortnight later by a vision of man's dreams for the future - when the first episode of Star Trek aired on September 8."

This is why I get a kick out of archiving!, Serendipityoucity

"These lunar images and the later great blue ball images sparked a whole new way for us to see ourselves, to think of a borderless world, to imagine ourselves in space, to think about transboudary environmental issues, and most importantly reminded us that we are all in this together."

Stuff on the Web: NASA goes back to the future, 4P Photoblog

"That NASA is restoring these images makes a lot of sense to me. They should contain quite a bit of information that will be crucial to the current Lunar program. The quality of the images though looks to be astonishing, and is a credit to the original designers of the Lunar Orbiters."

Endeavour Update; Low Power Plan For Spirit, Astronomy Weather Blog, AccuWeather.com

"I have a profound interest in photography, so when I read about how NASA had restored a 42-year old image, I had to share the story! There is a great picture that was taken by the Lunar Orbiter 1 in 1966 that depicts Earth rising above the lunar surface. Modern digital technology has allowed NASA to produce the image at much higher resolutions. In the 1960s, limited technology of the day prevented the full, true resolution of the images from being available as they were captured on large magnetic types and transferred to photographic film."

November 17, 2008

Recovered Lunar Orbiter Image Makes Astronomy Picture of the Day

Restored: First Image of the Earth from the Moon:

"Explanation: Pictured above is the first image ever taken of the Earth from the Moon. The image was taken in 1966 by Lunar Orbiter 1 and heralded by then-journalists as the Image of the Century. It was taken about two years before the Apollo 8 crew snapped its more famous color cousin. Recently, modern technology has allowed the recovery of higher resolution images from old data sources such as Lunar Orbiter tapes than ever before. Specifically, recovery of the above image was initiated 20 years ago by Nancy Evans, and completed recently by Dennis Wingo and Keith Cowing who lead the Lunar Orbiter Image Recovery Project. Lunar Orbiter Image Recovery Project. Images like that above carry more than aesthetic value -- comparison to recent high definition images of the Moon enables investigations into how the Moon has been changing."

This Week at NASA - November 14, 2008 - Featuring LOIRP

Note: The LOIRP segment starts at 2:14

November 16, 2008

Lunar Orbiter Image Hacks

Colorized wallpaper via Gizmodo

iPhone background version via Gizmodo

November 13, 2008

Retrieving Lunar Orbiter Images

This video shows a Lunar Orbiter image framelet being retrieved from an original data tape using a restored FR-900 tape drive. Watch the monitor between the two tape drives as portions of the image (negative image) roll across the screen. This activity is part of the Lunar Orbiter Image Recovery Project (LOIRP) underway at NASA ARC.

Newly Restored Lunar Orbiter Image of Earth and Moon

Newly restored Lunar Orbiter 1 image. Originally taken on 23 August 1966 and restored by the Lunar Orbiter Image Recovery Project at NASA Ames Research Center. Center portion containing Earth has undergone a second level of processing to remove frame lines from the image. Larger image. Credit: NASA/LOIRP

Video: Equipment used to restore images.

Newly Restored Lunar Orbiter Image of Earth and Moon (Detail)

Portion of newly restored Lunar Orbiter 1 image. Originally taken on 23 August 1966 and restored by the Lunar Orbiter Image Recovery Project at NASA Ames Research Center. Larger image. Credit: NASA/LOIRP

How the Photo Was Taken

This chart from the 1960's shows the context of the newly restored Lunar Orbiter 1 image. This image was taken on 23 August 1966 and restored by the Lunar Orbiter Image Recovery Project at NASA Ames Research Center. The orientation of Earth was slightly off and shows a terminator about an hour off from what is actually in the image.Larger image. Credit: NASA/LOIRP





This graphic shows the actual orientation of Earth at the time the photo was taken. It was possible to match the outlines of north Africa in the newly restored image. Larger image. Credit: NASA/LOIRP

Seeing Clouds Shadows On Earth

This graphic compares the enhanced resolution of the LOIRP image and the highest resolution image available online at LPI. AT full resolution shadows can be seem between clouds and the Earth's surface at a resolution estimated to be around 1 kilometer per pixel. This image was taken on 23 August 1966 and restored by the Lunar Orbiter Image Recovery Project at NASA Ames Research Center. Larger image. Credit: NASA/LOIRP

Comparing USGS and LOIRP Image Resolution

Several years ago the USGS Astrogeology Research Program began a project whereby copies of original Lunar Orbiter photos have been scanned using high resolution scanning devices. This graphic compares the calibration marks from a high resolution USGS scan and an inital image generated by the LOIRP. Larger image. Credit: NASA/USGS/LOIRP

Greater Surface Detail

This graphic compares the enhanced resolution of the LOIRP image and the highest resolution image available online at LPI. This image was taken on 23 August 1966 and restored by the Lunar Orbiter Image Recovery Project at NASA Ames Research Center. Larger image. Credit: NASA/LOIRP

Increase in Resolution

This graphic compares the enhanced resolution of the LOIRP image and the highest resolution image available online at LPI. Note the substantial increase in resolution with regard to the calibration marks at the bottom of this image. This image was taken on 23 August 1966 and restored by the Lunar Orbiter Image Recovery Project at NASA Ames Research Center. Larger image. Credit: NASA/LOIRP

October 13, 2008

Man's First Look at Earth From the Moon....

NASA SP-168 EXPLORING SPACE WITH A CAMERA

ORBITER I

Describing the spectacular, historic view above, FLOYD L. THOMPSON, then Director, Langley Research Center, wrote: "At 16:35 GMT on August 23, 1966, the versatile manmade Lunar Orbiter spacecraft responded to a series of commands sent to it from Earth, across a quarter-million miles of space, and made this over-the-shoulder view of its home planet from a vantage point 730 miles above the far side of the Moon.

"At that moment," Thompson continued, "the Sun was setting along an arc extending from England [on the right] to Antarctica [on the left]. Above that line, the world, with the east coast of the United States at the top, was still bathed in afternoon sunlight. Below, the major portion of the African Continent and the Indian Ocean were shrouded in the darkness of evening. "By this reversal of viewpoint, we here on the...

... and an Oblique View of the Moon Itself

....Earth have been provided a sobering glimpse of the spectacle of our own planet as it will be seen by a few of our generation in their pursuit of the manned exploration of space. We have achieved the ability to contemplate ourselves from afar and thus, in a measure, accomplish the wish expressed by Robert Burns: 'To see oursels as ithers see us! "

Also visible in dramatic new perspective in this photograph is the singularly bleak Iunar landscape, its tortured features evidently hammered out by a cosmic bombardment that may have extended over billions of years.

Because the airless, weatherless Moon appears to preserve its surface materials so well, it may serve science as an illuminating record of past events in the solar system. ROBERT JASTROW, Director Goddard Institute for Space Studies, has called the Moon "the Rosetta Stone of the planets."

March 8, 2008

Lunar Orbiter Missions - Table

Photographic Lunar Lunar Lunar Lunar Lunar
Parameters Orbiter 1 Orbiter 2 Orbiter 3 Orbiter 4 Orbiter 5
Launch Date 10-Aug-66 6-Nov-66 5-Feb-67 4-May-67 1-Aug-67
Periselene (km) 40.5 41 44 2668 97
Aposelene (km) 1857 1871 1847 6151 6092
Inclination (deg) 12 12 21 85.5 85
Period (h) 3.5 3.5 3.5 12 8.5,3.0
Impact date 29-Oct-66 11-Oct-67 10-Oct-67 31-Oct-67 31-Jan-68
Impact coordinates 7 N, 161 E 3 N, 119.1 E 14.32 N, 92.7 W ??, 22-30 W 2.79 S, 83 W
Acquisition dates 18-29 Aug 1966 18-25 Nov 1966 15-23 Feb 1967 11-26 May 1967 06-18 Aug 1967
Quantity of frames
High resolution 42 609 477 419 633
Medium resolution 187 208 149 127 211
Altitude range for photos (km) 44 - 1581 41 - 1519 44 - 1463 2668 - 6151 97 - 5758
Highest resolution
Periselene (m) 8 1 1 58 2
Aposelene (m) 275 33 32 134 125
Framelet width at periselene (m)
High resolution 200 170 185 11350 420
Medium resolution 1500 1300 1400 85100 3200

October 1, 1991

Lunar Orbiter Stamp

"First Day of Issue: October 1, 1991 First Issue Location: Pasadena, California From 1966 to 1967- coming as close as 29 miles to the lunar surface- NASA's Lunar orbiters photographed 99% of the Moon, including both polar regions and the mysterious dark side. It was an amazing feat considering that three of the five Orbiters experienced equipment failures. From the high-resolution photographs, maps 100 times more accurate than previously possible were created, and several primary landing sites for upcoming Apollo missions were chosen. NASA didn't take any chances-- it was vital to avoid locations where craters, rocks, and holes filled with dust could be hazardous to the lunar module. Thus, when the Apollo 11 astronauts made their historic trip, their landing site was the basaltic surface of the Sea of Tranquillity, an area shown to be virturally crater-free by the Lunar Orbiters. As a result, when astronaut Neil Armstrong made his "giant leap for mankind," he was following in the figurative footsteps of the intrepid Lunar Orbiters, which had blazed a safe trail for him and all subsequent Apollo astronauts."

June 27, 1971

Apollo 15 landing area

An enlarged Lunar Orbiter photograph of the Apollo 15 landing area in the Hadley-Apennine region on the nearside of the Moon. The overlay indicates the location of the numerous informally-named surface features. These names will facilitate understanding the verbal descriptions from the astronauts during their lunar surface extravehicular activity.

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Lunar Orbiter photograph, enlarged, showing the Hadley-Apennine Apollo 15 landing site, with numerous craters and other small features named to aid discussion between EVA Astronauts and MCC. (July 16, 1971)

August 18, 1967

Lunar Orbiter 5 Mission

Alternate Names: Lunar Orbiter-E, 02907
Launch Date: 1967-08-01
Launch Vehicle: Atlas-Agena D
Launch Site: Cape Canaveral, United States
Mass: 385.6 kg
Nominal Power: 375.0 W
Launch/Orbital information for Lunar Orbiter 5
Experiments on Lunar Orbiter 5
Data collections from Lunar Orbiter 5

Description

Lunar Orbiter 5, the last of the Lunar Orbiter series, was designed to take additional Apollo and Surveyor landing site photography and to take broad survey images of unphotographed parts of the Moon's far side. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data and was used to evaluate the Manned Space Flight Network tracking stations and Apollo Orbit Determination Program. The spacecraft was placed in a cislunar trajectory and on 5 August 1967 was injected into an elliptical near polar lunar orbit 194.5 km x 6023 km with an inclination of 85 degrees and a period of 8 hours 30 minutes. On 7 August the perilune was lowered to 100 km and on 9 August the orbit was lowered to a 99 km x 1499 km, 3 hour 11 minute period. The photographic portion of the mission ended on 18 August.

Continue reading "Lunar Orbiter 5 Mission" »

July 31, 1967

Photo: Lunar Orbiter Model Display at NASA KSC in July 1967

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June 27, 1967

Apollo 15 Landing Site and Lunar Rover Traverse Routes

Lunar orbiter photograph showing LRV traverse routes overlaid on landing site Description: An enlarged Lunar Orbiter photograph showing the Lunar Roving Vehicle (LRV) traverse routes overlaid on the Hadley-Apennine landing site. Apollo 15 is to land at the point labeled "site", and a comparison of Apollo 14 crater sizes with those of Apollo 15 is included, also.

June 9, 1967

Lunar Orbiter Radiation Dosimetry Experiments

Radiation Dosimiter System Schematic

In addition to selenodesy the Planetology Subcommittee selected two other fields of scientific investigation for experiments on the first five Lunar Orbiters which made up Block I of the program. These were radiation and micrometeoroid flux in near lunar environment. The two experiments which Langley developed for the Orbiter were designed to measure the performance of the spacecraft as well as to provide useful data on potential hazards to manned missions to the Moon.

The radiation experiment was designed by Dr. Trutz Foelsche and had two objectives as outlined by him:

The Principal purpose of the lunar orbiter radiation-measuring systems was to monitor, In real time, the high radiation doses that would accumulate on the unprocessed film in case of major solar cosmic ray events. In this way It would be possible for the mission control to minimize the darkening of the film by operational maneuvers, such as stopping the photographic operation and acceleration of development of the film in the loopers, and in case of more penetrating events, shielding the film in the cassette by the spacecraft itself and by the moon. Furthermore, the independent measurement of radiation doses would contribute to the diagnosis of film failure due to other reasons.

A second purpose was to acquire a maximum amount of information on radiation on the way to the moon and near the moon, insofar as this could be achieved within the weight limitation of 2 pounds.

The danger that the film could be damaged by solar radiation had Dr. Foelsche and Dr. Samuel Ketzoff worried because the Eastman Kodak photographic subsystem provided only aluminum shielding at two grams per square centimeter at the film cassette and at two tenths of a gram per square centimeter in the rest of the system. Foelsche desired thicker shielding, but the contractors maintained that the film would be safe. The amount of shielding was a calculated risk, trading shielding weight against the probabilities of solar flare intensities.

Although he would have preferred to mount a more sophisticated experiment, Foelsche designed a measuring system to carry out the objectives described above., remaining within a one-kilogram weight limit. The system's sensors, their arrangement and shielding, the measuring principle and dynamic ranges were all developed at Langley. The Lunar Orbiter Project Office at Langley and the Boeing Company then determined the specifications for the hardware, and Texas Instruments built and calibrated the experiment.

Source: Destination Moon: A History of the Lunar Orbiter Program

The data obtained from the radiation experiments on board the five Lunar Orbiter spacecraft had significant implications for the Apollo Program. What would be the approximate doses of radiation experienced by astronauts in space suits? In the Lunar Module? In the Apollo Command Module? To obtain an answer, the primary investigator, Dr. Trutz Foelsche, analyzed the data recorded by the two cesium iodide (CsI) detectors in each of the five Orbiters. One of the two was shielded by 0.2 gram of aluminum per square centimeter, the other by 2.0 grams aluminum per square centimeter. Because of the higher absorption of protons and alpha-particles per gram per square centimeter in soft tissue or water, the doses recorded by the Lunar Orbiter dosimeters had to be multiplied by two. The analysis showed that all events recorded were of significance to a man in space only where shielding was light, specifically in a space suit or in the Lunar Module.

The following table shows the skin doses that would be incurred in a space suit with shielding of 0.17 gram per square centimeter in the presence of three solar particle events.

Event Date

Radiation Dosage

September 2, 1966

270 rads in H2O

January 28, 1967

106 rads in H2O (24 rads behind 2 grams/cm2 shielding)

May 24/28, 1967

130 rads in H2O (Lunar Orbiter IV in high orbit)

Foelsche noted, however, that the skin doses approached or even surpassed the suggested maximum permissible skin dose (14PD) for astronauts for short-term exposure even for the moderate rates above. See the table

Types of Mission

Suggested MPDs for Astronauts

Eyes
(rad)
Blood-Forming Organs
(rad)
Skin
(rad)
Short Term
(up to two weeks)
27
52
233
Long Term
(several months)
250
150
500

In summary, the Lunar Orbiter radiation experiments contributed to four areas of scientific interest in addition to monitoring the doses on the camera film. First, they allowed estimates to be made of the skin dose rates behind 2 grams per square centimeter of shielding for astronauts passing through the Van Allen Belt. The estimates made from these data were based on an assumption of five passes through the belt in a one-year period. Second, the experiments contributed to information about the Moon's core. The weakness or absence of an intrinsic magnetic field of the Moon, which Explorer XXXV confirmed, indicated that the Moon has no extended liquid conducting core like that scientists accept for the Earth.

Third, by comparing data of Pioneer V and VI (spacecraft that lagged behind or were ahead of the Earth while in orbit around the Sun) with Lunar Orbiter data, preliminary conclusions could be drawn concerning the spatial and lateral extensions and the intensities of solar particle flux during the 1966 and 1967 events. Finally, the experiments measured, by simulation, high skin doses in a light space suit near or on the Moon for the moderate size solar particle events of the August 1966 to August 1967 time span. From these data the inference could be made that in rare cases of large event groups, such as those of 1959 and 1960, the Apollo astronauts might experience skin doses greater than 1,800 to 5,000 rads in one week, if no precautions were taken.

The radiation experiments produced data which confirmed that the design of the hardware that Apollo astronauts would use on their lunar missions beginning in 1969 would protect them from average and greater than average short-term exposure to solar particle events.

Source: Destination Moon: A History of the Lunar Orbiter Program

February 26, 1967

Lunar Orbiter 4 Mission

Alternate Names: Lunar Orbiter-D, 02772
Launch Date: 1967-05-04
Launch Vehicle: Atlas-Agena D
Launch Site: Cape Canaveral, United States
Mass: 385.6 kg
Nominal Power: 375.0 W
Launch/Orbital information for Lunar Orbiter 4
Experiments on Lunar Orbiter 4
Data collections from Lunar Orbiter 4

Description

Lunar Orbiter 4 was designed to take advantage of the fact that the three previous Lunar Orbiters had completed the required needs for Apollo mapping and site selection. It was given a more general objective, to "perform a broad systematic photographic survey of lunar surface features in order to increase the scientific knowledge of their nature, origin, and processes, and to serve as a basis for selecting sites for more detailed scientific study by subsequent orbital and landing missions. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data. The spacecraft was placed in a cislunar trajectory and injected into an elliptical near polar high lunar orbit for data acquisition. The orbit was 2706 km x 6111 km with an inclination of 85.5 degrees and a period of 12 hours.

Continue reading "Lunar Orbiter 4 Mission" »

February 23, 1967

Lunar Orbiter 3 Mission

Alternate Names: Lunar Orbiter-C, 02666
Launch Date: 1967-02-05
Launch Vehicle: Atlas-Agena D
Launch Site: Cape Canaveral, United States
Mass: 385.6 kg
Nominal Power: 375.0 W
Launch/Orbital information for Lunar Orbiter 3
Experiments on Lunar Orbiter 3
Data collections from Lunar Orbiter 3

Description

The Lunar Orbiter 3 spacecraft was designed primarily to photograph areas of the lunar surface for confirmation of safe landing sites for the Surveyor and Apollo missions. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data. The spacecraft was placed in a cislunar trajectory and injected into an elliptical near-equatorial lunar orbit on 8 February at 21:54 UT. The orbit was 210.2 km x 1801.9 km with an inclination of 20.9 degrees and a period of 3 hours 25 minutes. After four days (25 orbits) of tracking the orbit was changed to 55 km x 1847 km. The spacecraft acquired photographic data from February 15 to 23, 1967, and readout occurred through March 2, 1967. The film advance mechanism showed erratic behavior during this period resulting in a decision to begin readout of the frames earlier than planned. The frames were read out successfully until 4 March when the film advance motor burned out, leaving about 25% of the frames on the takeup reel, unable to be read.

Continue reading "Lunar Orbiter 3 Mission" »

December 13, 1966

Lunar Orbiter Project Briefing

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From Spaceflight Revolution: "Top NASA officials listen to a LOPO briefing at Langley in December 1966. Sitting to the far right with his hand on his chin is Floyd Thompson. To the left sits Dr. George Mueller, NASA associate administrator for Manned Space Flight. On the wall is a diagram of the sites selected for the "concentrated mission." "The most fundamental issue in the pre-mission planning for Lunar Orbiter was how the moon was to be photographed. Would the photography be "concentrated" on a predetermined single target, or would it be "distributed" over several selected targets across the moon's surface? On the answer to this basic question depended the successful integration of the entire mission plan for Lunar Orbiter." The Lunar Orbiter Project made systematic photographic maps of the lunar landing sites. Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, (Washington: NASA, 1995), p. 337.

November 25, 1966

Lunar Orbiter 2 Mission

Alternate Names: Lunar Orbiter-B, 02534
Launch Date: 1966-11-06
Launch Vehicle: Atlas-Agena D
Launch Site: Cape Canaveral, United States
Mass: 385.6 kg
Nominal Power: 375.0 W
Launch/Orbital information for Lunar Orbiter 2
Experiments on Lunar Orbiter 2
Data collections from Lunar Orbiter 2

Description

The Lunar Orbiter 2 spacecraft was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data. The spacecraft was placed in a cislunar trajectory and injected into an elliptical near-equatorial lunar orbit for data acquisition after 92.5 hours flight time. The initial orbit was 196 km x 1850 km at an inclination of 11.8 degrees. The perilune was lowered to 49.7 km five days later after 33 orbits. A failure of the amplifier on the final day of readout, 7 December, resulted in the loss of six photographs. On 8 December 1966 the inclination was altered to 17.5 degrees to provide new data on lunar gravity.

Continue reading "Lunar Orbiter 2 Mission" »

August 29, 1966

Lunar Orbiter 1 Mission

Alternate Names: Lunar Orbiter-A, 02394
Launch Date: 1966-08-10
Launch Vehicle: Atlas-Agena D
Launch Site: Cape Canaveral, United States
Mass: 385.6 kg
Nominal Power: 375.0 W
Launch/Orbital information for Lunar Orbiter 1
Experiments on Lunar Orbiter 1
Data collections from Lunar Orbiter 1

Description

The Lunar Orbiter 1 spacecraft was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data. The spacecraft was placed in an Earth parking orbit on 10 August 1966 at 19:31 UT and injected into a cislunar trajectory at 20:04 UT. The spacecraft experienced a temporary failure of the Canopus star tracker (probably due to stray sunlight) and overheating during its cruise to the Moon. The star tracker problem was resolved by navigating using the Moon as a reference and the overheating was abated by orienting the spacecraft 36 degrees off-Sun to lower the temperature.

Continue reading "Lunar Orbiter 1 Mission" »

August 13, 1966

Lunar Orbiter Typical Flight Sequence of Events

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Lunar Orbiter's "Typical Flight sequence of Events" turned out to be quite typical indeed, as all five spacecraft performed exactly as planned. Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, (Washington: NASA, 1995), p. 340.

August 1, 1966

Photo: Lunar Orbiter Model at NASA JPL

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"Photographed on 08/01/66. -- Lunar Orbiter press conference at the Jet Propulsion Laboratory. A mockup of the solar-powered spacecraft (called the "Two-Eyed Robot") is shown on the right."

Photo: Lunar Orbiter Press Conference at JPL

NASA Caption: "Lunar Orbiter press conference at the Jet Propulsion Laboratory. A mockup of the solar-powered spacecraft (called the "Two-Eyed Robot") is shown on the right. It was built by Boeing for the NASA Langley Research Center. From Edgar M. Cortright, "Scouting the Moon" in Apollo Expeditions to the Moon: "It was in its photo system that Orbiter was most unconventional. Other spacecraft took TV images and sent them back to Earth as electrical signals. Orbiter took photographs, developed them on board, and then scanned them with a special photoelectric system--a method that, for all its complications and limitations, could produce images of exceptional quality. One Orbiter camera could resolve details as small as 3 feet from an altitude of 30 nautical miles. A sample complication exacted by this performance: because slow film had to be used (because of risk of radiation fogging), slow shutter speeds were also needed. This meant that, to prevent blurring from spacecraft motion, a velocity-height sensor had to insure that the film was moved a tiny, precise, and compensatory amount during the instant of exposure." Published in Edgar M. Cortright, "Scouting the Moon, " in Apollo Expeditions to the Moon, ed. Edgar M. Cortright, (Washington: NASA SP-350, 1975), p. 93." Larger image

January 16, 1966

Video: The Lunar Orbiter: A Spacecraft to Advance Lunar Exploration

April 16, 1964

Lunar Orbiter Contract Signed

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Representatives of NASA Langley and Boeing signed the Lunar Orbiter contract on 16 April 1964 and sent it to NASA headquarters for final review. Three weeks later, on 7 May, Administrator James E. Webb approved the $80-million incentives contract to build five Lunar Orbiter spacecraft. Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, NASA SP-4308, p. 331.

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This page contains an archive of all entries posted to MoonViews - Providing Imagery and Data For Lunar Exploration in the Lunar Orbiter category. They are listed from oldest to newest.

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