LCROSS en route |
LCROSS en route |
Jul 15 2009, 03:08 PM
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#1
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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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Oct 2 2009, 08:06 PM
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#2
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
From the Observation Group website:
------------------------- Hello Team! Latest update on impact locations: Centaur: -84.70, 310.95E SSC: -84.77, 310.45E These are final and should not change. Nominal timing for impacts: Centaur = 9 Oct 2009 11:31:30 UTC SSC = 9 Oct 2009 11:35:45 UTC There may be some variation from these nominal times through remaining trajectory correction maneuvering. We will post updates to these times as they become available. Any timing updates on impact night will be posted to LCROSS Twitter page, LCROSS Facebook page, and LCROSS-CS. Brian ---------------------- Final LCROSS Centaur and SSC target coordinates (Lat., Lon. in ME) Centaur: -84.675, 311.275 E SSC: -84.729, 310.64 E Elevations (Assumed Lunar radius: 1737.4 km): Centaur target elev: -3.82693 km SSC target elev: -3.80909 km Impact Times: Centaur: 9 Oct 2009 11:31:30 UTC SSC: 9 Oct 2009 11:35:45 UTC Note: These are nominal impact positions and times. Actual impact times based on TCM results may differ (see next slide for uncertainties) ---------------------------- That point is slightly west of the position shown on my map. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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