Emily LakdawallaMay 15, 2008

A little Lunar Reconnaissance Orbiter news

It's been quietly posted to the website for Lunar Reconnaissance Orbiter, NASA's boat in the flotilla of spacecraft being launched to the Moon, that the launch date is now November 24, of this year, about a month later than previously stated. Unlike planetary missions, lunar missions can generally cope with month-to-month delays like this. According to the launch table at Spaceflight Now, there are four launch opportunities from November 24-27, each with comfortably long 90-minute launch windows. They also list launch windows for two sets of dates in December.

LRO at the Moon

Chris Meaney, NASA Television

LRO at the Moon
An artist's conception of the Lunar Reconnaisance Orbiter (LRO) in orbit around the Moon.

Previously the LCROSS mission stated that they were planning to send their impactor to Shackleton crater, which sits smack on top of the lunar south pole. However, according to Frank Morring at Aviation Week, the mission was already considering moving the aim point to an older crater than Shackleton -- Morring doesn't state why, but I assume it is because an older crater is more likely to contain water. There are craters just to the north of Shackleton, he said, that are also permanently shadowed. And, he said, the prime candidates are Shoemaker crater and Faustini crater. I think it would be absolutely tremendous if our artificial impactor wound up striking a crater named for one of the pioneers of impact geology, Gene Shoemaker. But Morring says no final choice has been made, and that it will depend upon when Lunar Reconnaissance Orbiter launches.



The LCROSS spacecraft watches as the launch vehicle upper stage aims for a lunar impact.

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