June 16, 2019

09.10.09: An LCROSS Update.

NASA’s LCROSS spacecraft performed its promised “moon crash” early this AM at 0731 AM EDT… all eyes, electronic and otherwise were on Cabeus crater. Unfortunately, no impact was detected here at Astroguyz HQ in Hudson, Florida, although we did have a rising Sun and a brightening sky to contend with. The 10 AM news conference at the Ames research center revealed that the secondary control module of LCROSS did detect the impact in both UV and IR signatures as well as a visual fix on the crater created by the Centaur booster. The controller itself met its fiery end four minutes later. Ground based observatories from Apache Point, New Mexico to the Keck telescopes in Hawaii to observatories in South Korea as well as Hubble, LRO, and Sweden’s ODIN in orbit all gathered data. Its to be seen if any amateur ‘scopes recorded this event. Kitt Peak did record a sodium flash during the event. Of course, the data itself will need to be compiled and analyzed before any meaningful scientific conclusions can be done…I smell a follow up post! Kudos to all that woke up early to look at our nearest neighbor in space, as well as NASA scientists that are no doubt now getting some much needed sleep!

 

LCROSS Strikes Back!

The Moon won’t know what hit it Friday. On October 9th at 11:30 Universal Time, the LCROSS twin impactors will slam into the Moon’s south pole region. The quarry; permanently shaded water ice. LCROSS consists of a upper stage Centaur rocket weighing in at 5,200 lbs and a controlling “shepherd” spacecraft weighing in at 1,900 lbs. The stage section will separate shortly before impact, enabling the control package to fly through the resulting debris plume, which is expected to be 6 miles high at eject 350 tons of material from the surface. Both will successively slam into the surface at 5,600 mph. Recently, the candidate impact crater was shifted from Cabeus A to Cabeus proper.

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