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Chandrayaan-II, All Chandrayaan-II related articles
kenny
post Sep 12 2019, 08:03 PM
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Gulf News - India


A senior Isro official associated with the mission said: “The images from the orbiter camera showed that Vikram is in single piece lying on the lunar surface; not broken into pieces. It is in a tilted position. It’s not in its four legs, as usual.”

This official added on condition of anonymity: “It’s not upside down. It’s lying on its side”.

Isro officially did not comment on the condition of the lander.

Chandrayaan-2 comprises an orbiter, lander (Vikram) and rover (Pragyan).

The mission life of the lander and rover is one lunar day, which is equal to 14 earth days.
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kenny
post Sep 12 2019, 08:06 PM
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Additional location information from the above ref. ...

"An Isro official said Vikram hit the lunar surface at a place about 500 metres away from where it was originally planned to touchdown. "
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Roby72
post Sep 12 2019, 09:18 PM
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QUOTE (mcaplinger @ Sep 12 2019, 04:18 PM) *
I haven't been able to find very much technical information about this camera beyond this phone image of an old viewgraph about it which I've enhanced a little. I'll be very curious to see how well this performs; the high resolution coupled with a large number of TDI stages (oddly high, actually, I've no idea why they need so many) presents a lot of challenges. LROC NAC was a much more conservative design in most respects.

[attachment=45092:ohrc.png]


As I see on Dsn Now page the data rate of Chandrayaan II orbiter is now quite low in a range of only 1 kbit/sec.
LRO has more than 100 times more typically.
We will see if they have higher data rates to send big images - anyone knows about this more ?
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mcaplinger
post Sep 12 2019, 11:08 PM
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QUOTE (Roby72 @ Sep 12 2019, 01:18 PM) *
We will see if they have higher data rates to send big images - anyone knows about this more ?

ISRO has their own network, I don't even know if DSN will be used operationally. https://directory.eoportal.org/web/eoportal...s/chandrayaan-2 I couldn't find anything about specific data rates.

On Ka-band, LRO can send data at 100-300 Mbps.


--------------------
Disclaimer: This post is based on public information only. Any opinions are my own.
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