Phoenix - spring images, HiRISE views of Phoenix after the long, long winter |
Phoenix - spring images, HiRISE views of Phoenix after the long, long winter |
Oct 26 2009, 02:14 PM
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Solar System Cartographer Group: Members Posts: 10258 Joined: 5-April 05 From: Canada Member No.: 227 |
Doug just said in another thread that he was looking for Phoenix in the new images and couldn't find it. Well, I love a challenge. So here it is:
Close-up: (REMOVED - SEE LATER POST) Context: (REMOVED - SEE LATER POST) Note that map-projected HiRISE images at this latitude are in polar stereographic projection, not a cylindrical projection. North is at the left. You might not believe this, but by blinking layers like Clyde Tombaugh I think I can match numerous points, not just the hardware. EDIT: I was a bit off. Correct locations are shown below. 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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Jan 27 2010, 04:09 PM
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Martian Photographer Group: Members Posts: 353 Joined: 3-March 05 Member No.: 183 |
Having refreshed my memory, I have a bit more info. The first confirmed lazarus communication was sol 154 in a 5:18 AM pass, lasting about 2 minutes. Phoenix was described as being in a mode of continuous communications attempts over 2 hours or until power runs out. The next sol, a signal was seen at 8:20, but was faint (ODY was low in the sky and the path was long). The next sol, the 13:19 pass worked ( 12 minutes!) giving a record of many, many unsuccessful attempts to wake up and a power state that would not survive the night (again). An early AM pass had apparently showed some sort of signal, too. The last signal was detected (without data) at 157/8:24. After that, it was never clear whether the lander was trying to awaken, and failing; awake at unfortunate times; or had entered a particular (permanently) unrecoverable state. So, I think the intent is constant comm for most of 2 hours, which uses many W-hrs, but it may use <10 minute cycles of shorter attempts.
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