LCROSS en route |
LCROSS en route |
Jul 15 2009, 03:08 PM
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Junior Member Group: Members Posts: 87 Joined: 9-November 07 Member No.: 3958 |
While we're waiting for Those Pictures, here are a couple of shots of LCROSS from our campus observatory last night (0221, 027 UT on 15 July). 4 minute exposures tracking expected motion from the Horizons ephemeris, within 20 degrees of the southern horizon and fighting summertime haze as well as city lights. I wanted to catch it before its inclined orbit takes it too far south, after which it spends a week or so as a predawn object. The range was about 563,000 km, and the Centaur is no bigger than a CSM/LM combination, so this is a more difficult target than spotting an Apollo enroute was. (On the other hand, nobody had CCD imagers in 1969).
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Aug 25 2009, 05:00 PM
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#2
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Member Group: Members Posts: 157 Joined: 22-May 09 From: Ireland Member No.: 4792 |
There were some initial problems with the star tracker (STA) and the IRU (June 26) after launch, however, these were minor, expected, problems -- according to the Flight Director's Blog.
As far as I understand, the ACS Attitude Control System is "based primarily on LRO hardware and software in the same arrangement". Tried finding some images of the IRU, the ACS, however, no luck -- assuming that they are on the LCROSS R4 (Attitude Control & Communications Electornics) panel. John A Moon Site |
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