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Chandrayaan-II, All Chandrayaan-II related articles
atomoid
post Oct 1 2019, 10:15 PM
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Thanks, i always enjoy these. I rotated each 180 to reduce headache. If you dont already use StereoPhotoMaker youll find it very useful
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Ohsin
post Oct 4 2019, 03:10 PM
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Few images from OHRC at last but not of impact site unfortunately.

https://www.isro.gov.in/update/04-oct-2019/...solution-camera

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mcaplinger
post Oct 6 2019, 05:38 PM
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QUOTE (Ohsin @ Oct 4 2019, 07:10 AM) *
Few images from OHRC at last but not of impact site unfortunately.

It would be an interesting exercise to find LROC coverage of this area and do a quality comparison. I tried looking but but wasn't able to find overlapping images in the few minutes I had to spend.


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Disclaimer: This post is based on public information only. Any opinions are my own.
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Ohsin
post Oct 7 2019, 06:08 PM
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QUOTE (mcaplinger @ Oct 6 2019, 11:08 PM) *
It would be an interesting exercise to find LROC coverage of this area and do a quality comparison. I tried looking but but wasn't able to find overlapping images in the few minutes I had to spend.


My guess is this is our broad area of interest but I am yet to find exact spots for good one to one comparison.

https://ode.rsl.wustl.edu/moon/indexproduct...d=M1251626568RC
https://ode.rsl.wustl.edu/moon/indexproduct...d=M1282199397RC
https://ode.rsl.wustl.edu/moon/indexproduct...d=M1282199397LC

Quickmap link to relevant area.

First attached image is of OHRC overview rotated 40 to match LROC mosaic.
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Phil Stooke
post Oct 22 2019, 07:09 PM
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Thanks for finding the images.

Here is some news about the SAR on Chandrayaan 2:

https://www.isro.gov.in/update/22-oct-2019/...thetic-aperture

Phil


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Phil Stooke
post Oct 23 2019, 10:33 PM
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Latest on the LRO search for Vikram is that the new imaging this month also failed to spot the lander.

https://www.indiatoday.in/science/story/cha...2124-2019-10-23

Shadows are invoked again, but my feeling is that the lander crashed further from the target than expected and is not in the imaged area, which appears to be looking at the landing target. I have not yet seen a detailed analysis of the expected impact location, but if Vikram was tumbling and thrusting after loss of contact, as seems to be suggested in some reports, it could be off top the side of the groundtrack a bit more than expected.

Phil


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Ohsin
post Oct 25 2019, 03:32 AM
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It appears there is no coordination on search for impact location.

https://www.space.com/india-moon-lander-not...nd-by-nasa.html

May be they are being coy on location information to get some science done first and fast.

http://www.newindianexpress.com/nation/201...ro-2035311.html
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SpaceListener
post Oct 25 2019, 03:34 PM
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As it is very hard to find the lander Vikram after one month, I am supposing that Vikram didn't impact so hard and its impact footprint will not show any burned pieces due to the combustion which facilities the probability to spot it due to the change of the color of the surface. The other possibility is that the lander is laid on the side and reduce its shadow.
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John Moore
post Nov 11 2019, 07:42 PM
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Top: An aerial view of the lighting conditions for when LRO passed over the 'Vikram' site today, 11 Nov, 2019 at 1:21:04 UTC (note, these are approximate calculations, so apologies, if incorrect).

Bottom: An 24-hour (11/11/2019 to 11/12/2019) graphic view of LRO's increasing altitude (note, sometimes American versus European date descriptions are published differently, however, in this
case, the format is Month/Day/Year).

LRO's orbital track is moving westwards, the site is becoming evermore brighter (terminator movement), as the Sun steadily climbs overhead.

John Moore



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Ohsin
post Yesterday, 11:52 PM
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Updates related to CHACE-2 and TMC-2 on orbiter

https://www.isro.gov.in/update/31-oct-2019/...lunar-exosphere
https://www.isro.gov.in/update/13-nov-2019/...initial-results

Apparently they are working out another attempt at landing before November 2020 with a lander/rover configuration and a detachable propulsion module.

https://timesofindia.indiatimes.com/india/c...ow/72047390.cms
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