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Yutu-2 route map
Thorsten Denk
post Jan 6 2023, 11:10 AM
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QUOTE (Phil Stooke @ Jan 3 2023, 11:06 PM) *
The first part of a map update to the end of lunar day 50. I have to work really hard not to say 'sol 50'.

You could say "month"... biggrin.gif
Thorsten
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Phil Stooke
post Jul 12 2023, 06:11 AM
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Good point, Thorsten!

A new map at last! This small extension of what I had before is based on the two LRO images in the main thread. I will update this after every LRO release as time permits.

Phil

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... because the Solar System ain't gonna map itself.

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Phil Stooke
post Sep 5 2023, 07:19 PM
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Andrew Jones has tweeted ( I can't say 'Xed') new Yutu 2 images from Seger Yu:

https://twitter.com/AJ_FI/status/1698603095289221546

(follow the link for more images)

They allow a map update because the craters can be identified in LRO images and the tracks interpolated. Slow progress - suggesting either focussed science work in this area, or perhaps reduced communication opportunities via the aging Queqiao relay satellite.

So here is a Yutu 2 map update for June 2023:

Attached Image


Phil


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marsbug
post Sep 6 2023, 01:35 AM
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As ever: Thanks for doing this Phil!


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Phil Stooke
post Sep 12 2023, 06:54 AM
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You're welcome!

Here is the full traverse with my new additions. The bright ray crater at top left is a major goal of the mission, as is the basalt region just beyond it.

Phil

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Phil Stooke
post Sep 19 2023, 06:50 AM
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The same path shown on a topo map - green is low, red is high.

Phil

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Phil Stooke
post Sep 27 2023, 08:09 PM
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https://m.weibo.cn/p/index?extparam=%E6%9C%...a0d21c1f24d1391

I'm not alone -
9-25 00:17 Super talk from the moon

Yutu 2's route during the first 56 months. It can be seen that Yutu 2 is about to enter a low-lying area.
It is produced based on the data header file of the Yutu-2 visible and near-infrared spectrometer and extracts the coordinate information.
Data source: Planetary Exploration and Data Release System
base map source: LRO
For more information, please see the public account: New Knowledge on the Solar System
Moon #月# #嫦娥4 successfully landed on the far side of the moon# # Popular science#

This weibo post included the following map:

Attached Image


It goes 1 month after my recent update. It doesn't show the actual route, just the points where the VNIS was used for composition observations. A large number recently, so possibly there is something different about this area - more basalt fragments?

If this is overlaid on my full map it agrees with the map early in the mission but drifts off (moving a bit further north and west, about 10 m total) in the later part. But the full map is based on Chinese maps when we were getting them, and images of the rover plus tracks in LRO images. These VNIS positions are a bit off. I don't know why, possibly an inexact registration with the base or a slightly different map projection.

In case you were wondering, we are in the 59th night right now.

Phil


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Phil Stooke
post Sep 30 2023, 02:33 AM
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Andrew Jones tweeted a map up to the present date (end of day 59):

https://twitter.com/AJ_FI/status/1707666256625598753

So here is my updated map at last.

Phil

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Phil Stooke
post Oct 16 2023, 06:10 PM
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My full map up to the end of day 59.

Phil

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Phil Stooke
post Mar 4 2024, 09:28 PM
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My estimate of the new position based on that new image. I still think only 1 or 2 drives per lunar day, but assuming it's the fault of Queqiao, not Yutu 2, we may see a change later this spring. Queqiao 2 is duu to launch on March 18th according to a recent report.

Phil

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