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NASA's LRO Spacecraft Gets First pictures of the Apollo Landing Sites

Published by Matt on Fri Jul 17, 2009 5:07 pm via: source
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WASHINGTON – NASA’s Lunar Reconnaissance Orbiter, or LRO, has returned its first imagery of the Apollo moon landing sites. The pictures show the Apollo missions’ lunar module descent stages sitting on the moon’s surface, as long shadows from a low sun angle make the modules’ locations evident.

The Lunar Reconnaissance Orbiter Camera, or LROC, was able to image five of the six Apollo sites, with the remaining Apollo 12 site expected to be photographed in the coming weeks.

Apollo 16 lunar module, Orion.

Apollo 16 lunar module, Orion.

The satellite reached lunar orbit June 23 and captured the Apollo sites between July 11 and 15. Though it had been expected that LRO would be able to resolve the remnants of the Apollo mission, these first images came before the spacecraft reached its final mapping orbit. Future LROC images from these sites will have two to three times greater resolution.

“The LROC team anxiously awaited each image,” said LROC principal investigator Mark Robinson of Arizona State University. “We were very interested in getting our first peek at the lunar module descent stages just for the thrill – and to see how well the cameras had come into focus. Indeed, the images are fantastic and so is the focus.”

Although these pictures provide a reminder of past NASA exploration, LRO’s primary focus is on paving the way for the future. By returning detailed

Apollo 16 lunar module, Orion.

Apollo 16 lunar module, Orion.

lunar data, the mission will help NASA identify safe landing sites for future explorers, locate potential resources, describe the moon’s radiation environment and demonstrate new technologies.

“Not only do these images reveal the great accomplishments of Apollo, they also show us that lunar exploration continues,” said LRO project scientist Richard Vondrak of NASA’s Goddard Space Flight Center in Greenbelt, Md. “They demonstrate how LRO will be used to identify the best destinations for the next journeys to the moon.”

The spacecraft’s current elliptical orbit resulted in image resolutions that were slightly different for each site but were all around four feet per pixel. Because the deck of the descent stage is about 12 feet in diameter, the Apollo relics themselves fill an area of about nine pixels. However, because the sun was low to the horizon when the

Apollo 11 lunar module, Eagle.

Apollo 11 lunar module, Eagle.

images were made, even subtle variations in topography create long shadows. Standing slightly more than ten feet above the surface, each Apollo descent stage creates a distinct shadow that fills roughly 20 pixels.

The image of the Apollo 14 landing site had a particularly desirable lighting condition that allowed visibility of additional details. The Apollo Lunar Surface Experiment Package, a set of scientific instruments placed by the astronauts at the landing site, is discernable, as are the faint trails between the module and instrument package left by the astronauts’ footprints.

Launched on June 18, LRO carries seven scientific instruments, all of which are currently undergoing calibration and testing prior to the spacecraft reaching its primary mission orbit. The LROC instrument comprises three

Apollo 14 lunar module, Antares.

Apollo 14 lunar module, Antares.

cameras — two high-resolution Narrow Angle Cameras and one lower resolution Wide Angle Camera. LRO will be directed into its primary mission orbit in August, a nearly-circularorbit about 31 miles above the lunar surface.

Goddard built and manages LRO, a NASA mission with international participation from the Institute for Space Research in Moscow. Russia provided the neutron detector aboard the spacecraft.

Five Things to Know about LRO

  • LRO is leading NASA’s way back to the moon.
  • The primary objective of LRO is to conduct investigations that prepare for future lunar exploration. Specifically LRO will scout for safe and compelling landing sites, locate potential resources (with special attention to the possibility of water ice) and characterize the effects of prolonged exposure to the lunar radiation environment.
    In addition to its exploration mission, LRO will also return rich scientific data that will help us to better understand the moon’s topography and composition.
  • Seven scientific instruments outfit LRO. These instruments will return lunar imagery, topography, temperature measurements and more.
  • Launched along with LRO was the Lunar CRater Observation and Sensing Satellite (LCROSS), a partner mission that will search for water ice on the moon.
  • In response to LRO’s “Send Your Name to the Moon” initiative, the spacecraft carries a microchip with nearly 1.6 million names submitted by the public. Click here to view a photo of the microchip containing the names as engineers prepare to install it on the spacecraft.
This graphic shows the approximate locations of the Apollo moon landing sites.

This graphic shows the approximate locations of the Apollo moon landing sites.

4 Comments
terramrs
boo that's a tease, the article says the apollo 14 site is the best picture, but it's not posted :(
Matt
Better now? :P I just forgot to post it sry
Moon Landing Sites imaged by Lunar orbiter... - TeakDoor.com - The Thailand Forum
[...] Apollo Landing Sites APOLLO LANDING SITES IMAGED BY LRO! | Bad Astronomy | Discover Magazine NASA’s LRO Spacecraft Gets First pictures of the Apollo Landing Sites | International Space Fe... __________________ "Does it take more time to edit the portions of quoted text included in [...]
Rob Goldsmith
Will all the Hoax lovers please shut up now?!
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