SLIM, Small Japanese lunar lander |
SLIM, Small Japanese lunar lander |
May 3 2024, 05:04 AM
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#121
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Solar System Cartographer Group: Members Posts: 10249 Joined: 5-April 05 From: Canada Member No.: 227 |
A bit more on that curious little bright spot adjacent to the SLIM lander:
https://twitter.com/this_is_tckb/status/1785878807557099996 This link goes to a tweet from the same person who posted the SLIM image, but it refers to an OHRC image of Chandrayaan 3. It also shows a small bright spot right next to the Vikram lander. The poster, Chandra, suggests it is Pragyan but it is in the wrong place. ISRO's map and a second map show Pragyan about 33 m northwest of the lander, and I have shown that it is visible at that location casting a shadow in an LRO image. And that same object is casting a long shadow in this new image too so the bright spot certainly is not Pragyan. So, two OHRC images both showing a very bright lander at low sun and a small bright spot right next to it. I think it is an artifact, perhaps caused by an internal reflection in the camera and showing up because the real image of the lander is so bright. 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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May 4 2024, 03:09 PM
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#122
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Senior Member Group: Members Posts: 4259 Joined: 17-January 05 Member No.: 152 |
An internal reflection should tend to appear along a radial line passing through the bright source and the optical axis (centre of frame). Considering the full frame, is that the case here?
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May 6 2024, 06:04 AM
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#123
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Solar System Cartographer Group: Members Posts: 10249 Joined: 5-April 05 From: Canada Member No.: 227 |
I don't know where this is in the full frame.
On the SLIM website: https://www.isas.jaxa.jp/home/slim/SLIM/gallery/index.html a caption to this OHRC image notes: "It is unclear what the light spot in the immediate vicinity of SLIM is, but it appears to be about LEV-1 in size." I had considered that, but I was puzzled by the appearance of a small bright spot adjacent to two different landers in images taken by the same camera. I looked for a common cause but I was probably wrong to do so. The LEV-2 image of the lander doesn't show anything at that location but the position of LEV-2 is not known yet, so LEV-1 might be hiding behind the lander. 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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May 30 2024, 02:26 AM
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#124
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Senior Member Group: Members Posts: 1453 Joined: 26-July 08 Member No.: 4270 |
SLIM did not survive the last lunar night. The mission is over.
https://x.com/SLIM_JAXA/status/1795310224548798726 -------------------- -- Hungry4info (Sirius_Alpha)
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May 30 2024, 10:39 PM
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#125
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Solar System Cartographer Group: Members Posts: 10249 Joined: 5-April 05 From: Canada Member No.: 227 |
Probably the end but not necessarily:
https://x.com/SLIM_JAXA/status/1795310331209904222 "Small lunar landing demonstrator SLIM @SLIM_JAXA We plan to try operating it again next month when it is expected that there will be sufficient solar power generation. The power was turned off overnight, so we hope that the whole system will be reset and restarted. #SLIM #JAXA 9:25 PM · May 27, 2024" 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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Jun 23 2024, 07:41 PM
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#126
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Solar System Cartographer Group: Members Posts: 10249 Joined: 5-April 05 From: Canada Member No.: 227 |
If that slight chance for SLIM to wake up again is still thought possible, right about now is when it should happen. I expect JAXA will be trying, but no word yet.
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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Jul 22 2024, 04:39 AM
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#127
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Solar System Cartographer Group: Members Posts: 10249 Joined: 5-April 05 From: Canada Member No.: 227 |
Well, it didn't wake up. But here is a new view of SLIM from LRO on 14 April 2024, at dawn, casting a long shadow. The image number is in the filename if you save it.
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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Jul 30 2024, 12:10 AM
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#128
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Solar System Cartographer Group: Members Posts: 10249 Joined: 5-April 05 From: Canada Member No.: 227 |
SLIM news:
https://x.com/SLIM_JAXA/status/1817867601244221572 https://x.com/SLIM_JAXA/status/1818074276760797255 These two tweets reveal that JAXA tried again on 24 and 25 July to contact SLIM, without success. But they are still trying! ... and that LRO has successfully received laser reflections from SLIM's laser reflector, despite it being in a very tricky orientation. 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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