Author Topic: GSLV-MkII, Chandrayaan-2, NET 2018-Q1  (Read 96688 times)

Offline vyoma

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #240 on: 03/02/2017 05:37 AM »
http://zeenews.india.com/space/chandrayaan-2-mission-india-may-launch-its-second-mission-to-moon-in-first-quarter-of-2018-says-isro-chief_1982630.html

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The ISRO chief while delivering a speech at the seventh annual convocation of Vels University on Wednesday said that tests were underway for a controlled landing of the spacecraft on the surface of the moon.

"ISRO will develop an engine that will help in the controlled landing on the moon. The mission is currently planned for the first quarter of 2018," he said, adding that scientists had developed an artificial crater to simulate the surface of lunar conditions for the landing experiments.

He further revealed that a series of ground tests is also in progress at the ISRO facility in Mahendragiri, Tirunelveli district, and in Challakere, in Chitradurga district near Bengaluru. "The satellite is also getting ready," he added.

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Chandrayaan 2, which consists of an Orbiter, Lander and Rover configuration, is an advanced version of the previous Chandrayaan-1 mission.

It is planned to be launched as a composite stack into the Earth Parking Orbit (EPO) of 170 X 18,500 km by GSLV-Mk II, as per the Indian Space Research Organisation.

Online sanman

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #241 on: 03/06/2017 08:24 PM »
Some post on Quora.com gives the landing coordinates as the following:

https://www.quora.com/How-is-the-landing-site-selection-for-Chandrayaan-2-done

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Main site: 87.2 deg S, 68 deg E
Backup site: 88.5 deg S, 297 deg E

Where exactly are these locations? What are the major features over there?
« Last Edit: 03/06/2017 08:25 PM by sanman »

Offline Phil Stooke

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #242 on: 03/06/2017 11:45 PM »
Sorry to disappoint you but those are very old locations from a site study done in 2010 when Chandrayaan 2 was still a joint Russian-Indian mission.  The most recent report on the site selection was this one in 2015:

http://www.hou.usra.edu/meetings/lpsc2015/pdf/1351.pdf

A 2016 presentation in Turkey was halted when the conference was cancelled, so there is no more recent update, as far as I know.

Online sanman

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #243 on: 03/07/2017 01:55 AM »
Ah, thanks very much for that - I see that the proposed Cabeus Crater landing site is ~150km from the Shackleton Crater landing site where Bezos would like to set up a moonbase.

I guess ISRO has picked the same general vicinity because it means longer solar illumination that won't necessitate the use of nuclear RTGs to keep the rover from freezing at night? And of course it also has the permanently shadowed regions (cold traps) where water ice might still persist.

So is this region going to be the Lunar Mesopotamia, most friendly to potential colonization efforts?
(and thus eventually the most contested, down the road)

Offline chota

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #244 on: 05/02/2017 05:46 PM »
Is that Chandrayaan-2

http://aviationweek.com/awinspace/india-makes-progress-chandrayaan-2-payloads

Photo Credits: Aviationweek/ Isro



Online Silmfeanor

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Offline Phil Stooke

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #246 on: 05/02/2017 09:07 PM »
Yes, it's LADEE.  This link to Youtube (you don't need to watch the video) shows the name LADEE in the caption under the image:



In fact the 'video' is a single still shot of LADEE with a voice-over describing Chandrayaan.  Weird!  As for the image showing up in AW&ST, their quality control isn't what it was.   

Online sanman

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Online sanman

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #248 on: 05/26/2017 09:37 PM »

Online Steven Pietrobon

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #249 on: 05/27/2017 05:32 AM »
The orbit, spacecraft and rover.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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