Chandrayaan-II, All Chandrayaan-II related articles Options

[Shan]

Thanks for posting it here! Going to process the image via ISIS

Was checking everyday for this image and for the last 2 days didn't log into Chandrayaan2 portal..

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[Phil Stooke]

These images are absolutely stunning. Let's hope for more sites imaged like this.

Phil

[Explorer1]

Great time of lunar day to take images as well; the shadow of the legs seals the deal for me; the detail of an oblique view without the loss of resolution.

[kenny]

Stunning, as Phil says, and the most detailed view of these two sites ever.

52 years later, the surficial disturbance made by the walking astronauts is still visible.
Of course, it is not their actual footprints, but the wider area sprayed by dust lifted by their movements.
Undisturbed surface, bleached by millennia of solar radiation, is lighter in tone. Movement uncovers the darker lower levels.

Can anyone advise the current orbital inclination of Chandrayaan 2?
I suspect near equatorial, meaning it can pass over Apollo 11, 12 and perhaps 14.
But not 15,16 or 17?

[Phil Stooke]

No, it is nearly polar so it could view the Chandrayaan 2 landing site at 70 degrees south.

Phil

[threadworm]

Another update today, this time the TMC camera, some 330+ files.

No new Apollo coverage, but 111 of the locations are covering the south polar region - at least that's what the shape filename and the appearance of the shape file when loaded into QGIS suggests. However the supplied shape files are proving difficult to load into Google or the LRO map to generate locations. Someone with more expertise than I may be able to get at the shapefile contents and get coordinates from them. Good luck!

[threadworm]

Stunning, as Phil says, and the most detailed view of these two sites ever.

52 years later, the surficial disturbance made by the walking astronauts is still visible.
Of course, it is not their actual footprints, but the wider area sprayed by dust lifted by their movements.
Undisturbed surface, bleached by millennia of solar radiation, is lighter in tone. Movement uncovers the darker lower levels.

Can anyone advise the current orbital inclination of Chandrayaan 2?
I suspect near equatorial, meaning it can pass over Apollo 11, 12 and perhaps 14.
But not 15,16 or 17?

The images covered so far show that the TMC has covered the Apollo 14 site (just). There are also TMC passes published just west of Taurus-Littrow, likewise just west of Apollo 16 and either side of the Apollo 15 site - very frustrating!

My gut feeling is that the OHRC imaging of Apollo 11 and 12 was a 'target of opportunity' thing, seeing as the LMs are pretty much dead cetnre of the images!

[Ohsin]

Jul 08, 2022

TMC-2 imaged Rocket Booster Impact on the Lunar Surface
On 4th March 2022, a spent rocket booster hit the lunar surface near the Hertzsprung crater, which is in the far side of the Moon. The impact created a double crater which is ~28m wide. Terrain Mapping Camera – 2 (TMC-2) onboard Chandrayaan-2 imaged the far side of the Moon in April 2022 and identified the impact site.

TMC-2 imaged Rocket Booster Impact on the Lunar Surface

The above image shows the comparison between the regions which is imaged before impact (21st February 2022) and after impact (3rd April 2022). The yellow arrow mark indicates the new crater formed due to the impact. The spatial resolution of TMC-2 is 5m and the image is zoomed four times.

https://www.isro.gov.in/update/08-jul-2022/...t-lunar-surface

[threadworm]

Update to the TMC listing this morning, including one pass that covers Apollo 17. This is my first attempt at revealing the detail - the dark spot is disturbed ground around the lunar module.

Interestingly, the shape file list has quite a few files missing, notably the one just west of Apollo 16's landing site.

No new OHRC files, but they may follow soon.

[threadworm]

And indeed some more images have been added to the OHRC list. Again, odd things going on. The image count has gone up by 6, but in reality there seem to be 20 new ones (10 pairs of raw/calibrated). A hefty chunk of those pairs are, according to the shapefiles that accompany the release) on exactly the same spot (somewhere over the far side).

In addition to the TMC files near Apollo 16's site that have gone astray, the ones that cover Apollo 14 are also gone. I can only think things aren't going well with whoever is adding files to their site!

My top tip is that if you find a file that covers are area of interest, download it!

[Ohsin]

New CY2 payload data release:

https://twitter.com/Akdixit131/status/1606286561221320704

[threadworm]

Pretty hefty data dump under way at the moment. 2000+ TMC-2 files added (so far).

No update to the shapefiles as yet to see where the new coverage is, but hopefully that'll come soon. No change in the number of OHRC files yet, but they tend to do them one instrument at a time!

Edited to add: they've added more files today than in the entire time their data site has been live. Currently standing at over 4000 new files.

[threadworm]

The shape files are now available.

Not much additional coverage in terms of the Apollo missions, but there is this of the Apollo 16 site:



That's a first go at teasng out the detail (the dark is admittedly a bit over-exaggerated), but it probably won't get much better.

No sign yet of any new OHRC uploads.

[Ohsin]

New OHRC data just dropped.

[Ohsin]

From a recent talk by SAC Director Nilesh M Desai. Before and after images of Chandrayaan-2 lander impact location.

https://www.youtube.com/watch?v=nivAGxeDaSc&t=2075s

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