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Chang'e-4 farside landing mission
Phil Stooke
post Jan 11 2020, 07:21 AM
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My hero!

Phil


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Phil Stooke
post Jan 12 2020, 01:38 AM
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OK, to get started... this is a circular version (with considerable contrast enhancement) of the May 30 panorama. It shows how we can learn things from the images. The tracks show that this location is what I show on the map as the 6th lunar night stop. If Yutu 2 was there on May 30, it probably drove on May 27, 28, 29 and 30 and then stopped for its noon break. In the afternoon it did no driving and stayed there until waking for the next day.

EDIT: No... not quite. Now I have done the June 9 panorama, I see that the position on my map labelled June 9th was incorrect. So now I can see that there was a drive in the afternoon, and I can label the locations properly. I will update the map when I have all these things sorted out, but having the panoramas is very useful. Mapping like this is an iterative process.

Phil

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Phil Stooke
post Jan 12 2020, 07:41 PM
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This is the updated map of panorama numbers. The base includes a correction for the end of lunar day 6. A full map update taking all panorama locations and dates into account will follow soon. Trying to map in real time is always going to be iterative!

Phil

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djellison
post Jan 12 2020, 08:19 PM
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Yeah - the area around Pan 50 - the 'gel' crater - they certainly approach it a few times... https://dougellison.smugmug.com/Change-4-Yutu-2/i-H7Zxsqr/A
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Phil Stooke
post Jan 12 2020, 08:55 PM
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One of Doug's panoramas in circular form.

Phil

July 6:

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Phil Stooke
post Jan 13 2020, 05:51 AM
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This is the June 9th panorama reprojected.

Phil

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Phil Stooke
post Jan 13 2020, 06:21 AM
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And here's a drive diary for the last lunar day. Open in something that will translate it for you.

Phil

https://www.bilibili.com/read/cv4340966


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Phil Stooke
post Jan 13 2020, 10:34 PM
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This is the Oct. 25th panorama made by Doug and reprojected to show the area in a somewhat map-like form (but still full of topographic distortions) (are there DEMs in the data release?).

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And an updated panorama number map. Doug says some numbers are missing. They may be other types of observation rather than panoramas.

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Phil


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djellison
post Jan 13 2020, 11:26 PM
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I don't see DEMs in the release. I've tried some photogrammetry with the images with very very mixed results

Pan 10
https://sketchfab.com/3d-models/change-4-yu...38c0f4cecab14ab

Pan 18
https://sketchfab.com/3d-models/change-4-yu...a86461b3c3728bd

Pan 22
https://sketchfab.com/3d-models/change-4-yu...578d458f0c84130

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Phil Stooke
post Jan 14 2020, 02:48 AM
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Hi Doug - can you post the original Pan 18? I don't think it's on Smugmug yet.

Phil



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djellison
post Jan 14 2020, 04:45 AM
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https://dougellison.smugmug.com/Change-4-Yutu-2/i-sbJvjxd/A
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Phil Stooke
post Jan 15 2020, 01:07 AM
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Thanks so much. Here's a circular view.

Phil

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Phil Stooke
post Jan 16 2020, 08:04 PM
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Yutu 2 is just about to wake up for lunar day 14. This is a mosaic of two recently released images showing the road ahead towards a prominent crater (top left).

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And a rough reprojection:

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Phil


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Nordren
post Yesterday, 08:14 PM
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Lunar day 14 is underway. Yutu-2 rover awoke at 14:00 UTC January 18 and the lander following at 09:55 Sunday, according to a social media post from CLEP. Two images released.

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