Author Topic: Chandrayaan-2 GSLV MkIII NET January 30 2019  (Read 165762 times)

Offline Steven Pietrobon

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #180 on: 08/22/2015 07:09 AM »
Wait what, Chandrayaan II is going to be doing optical terrain relative navigation on landing as well ?

Where did you hear that? I listened to the video again, but did not hear that.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline seshagirib

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #181 on: 08/22/2015 08:29 AM »
Wait what, Chandrayaan II is going to be doing optical terrain relative navigation on landing as well ?

Where did you hear that? I listened to the video again, but did not hear that.
o
I too did not hear this, however an earlier post of antriksh talks about vision based landing system:


Offline chota

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #182 on: 08/23/2015 04:54 AM »


Interesting!! At 3250 Kg. will it be GSLV-MkII's heaviest payload

Heaviest lofted by MkII is 2310 kg GSAT-5P on GSLV-F06

May be its the separation orbit. GSLV-MkII's  LEO capability is 5 tonnes
« Last Edit: 08/23/2015 05:51 AM by chota »

Offline chota

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #183 on: 09/08/2015 02:34 AM »
http://www.deccanherald.com/content/499707/indias-second-moon-mission-gains.html

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The design of the indigenous lander and the configuration study has been completed by the Space Applications Centre (SAC) and the integration work will be done in Bengaluru

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Isro will design the orbiter, which will orbit the Moon at an altitude of 100 km. The mission will carry five instruments on the orbiter. Three of them are new, while two others are improved versions of those flown on Chandrayaan-1 orbiter.

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The rover's mass will be about 30–100 kg and will operate on solar power. The rover will move on wheels on the lunar surface, pick up samples of soil or rocks, perform on-site chemical analysis and send the data to the orbiter above, which will relay it to the Earth station

Offline sanman

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Offline Steven Pietrobon

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #185 on: 09/12/2015 07:10 AM »
It wasn't entirely clear, but they could be RHU (radioisotope heater units) to keep the lander and rover warm during the cold Lunar night.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline vyoma

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #186 on: 09/12/2015 04:35 PM »
There were some speculations (Wikileaks Cables) earlier about NASA supplying a similar device for Chandrayaan 2 mission:
http://forum.nasaspaceflight.com/index.php?topic=20324.msg1272303#msg1272303
« Last Edit: 09/12/2015 06:09 PM by vyoma »

Offline chota

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #187 on: 09/16/2015 04:29 PM »

Offline vyoma

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #188 on: 11/18/2015 04:11 PM »
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India's second lunar mission, Chandrayaan-2, which is expected to be launched between 2017 and 2018, will have a rover which will operate on the moon's surface for 14 days. "It will function only for 14 days because its instruments are solar powered and the moon will have 14 days of sunlight," he said.

http://timesofindia.indiatimes.com/home/science/Now-Isro-to-launch-6-to-12-satellites-a-year/articleshow/49823834.cms

Offline worldtimedate

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #189 on: 12/16/2015 08:44 PM »

Quote

India’s second lunar probe Chandrayaan II will land on moon in 2017 and the country’s first solar mission Aditya L1 is likely to be launched in 2019, Lok Sabha was informed on Wednesday.

Chandrayaan II will land on the surface of moon in 2017 and this second lunar mission will help explore the possibilities of signs of extra-terrestrial life, Minister of State in Prime Minister’s Office Jitendra Singh said during Question Hour responding to supplementaries.



Chandrayaan-II in 2017; India to launch solar mission

--- [ --- ]
« Last Edit: 12/16/2015 08:45 PM by worldtimedate »

Offline Moe Grills

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #190 on: 12/17/2015 02:49 AM »
It wasn't entirely clear, but they could be RHU (radioisotope heater units) to keep the lander and rover warm during the cold Lunar night.
RHU's can be modified to generate some electricity as well.

Offline Moe Grills

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #191 on: 12/17/2015 02:51 AM »

Quote

India’s second lunar probe Chandrayaan II will land on moon in 2017 and the country’s first solar mission Aditya L1 is likely to be launched in 2019, Lok Sabha was informed on Wednesday.

Chandrayaan II will land on the surface of moon in 2017 and this second lunar mission will help explore the possibilities of signs of extra-terrestrial life, Minister of State in Prime Minister’s Office Jitendra Singh said during Question Hour responding to supplementaries.



Signs of.....extra-terrestrial life??????....on the Moon??????     Did I miss something???????

Offline antriksh

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #192 on: 12/17/2015 04:18 AM »

Quote

India’s second lunar probe Chandrayaan II will land on moon in 2017 and the country’s first solar mission Aditya L1 is likely to be launched in 2019, Lok Sabha was informed on Wednesday.

Chandrayaan II will land on the surface of moon in 2017 and this second lunar mission will help explore the possibilities of signs of extra-terrestrial life, Minister of State in Prime Minister’s Office Jitendra Singh said during Question Hour responding to supplementaries.



Signs of.....extra-terrestrial life??????....on the Moon??????     Did I miss something???????

Cybertronians  ;D
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #193 on: 01/05/2016 02:08 PM »
No nuclear power for CH-2

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We plan to take Chandrayaan 3 and 4 in near future and we may use nuclear power in those missions. By that time we will be completely ready with the materials and other things

Source
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline A.K.

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #194 on: 01/06/2016 06:31 AM »
ISRO puts off nuclear powered space mission
Quote from:
NEW DELHI: Indian Space Research Organisation (ISRO) has decided to put off for time being its plans to use nuclear power to increase lifespan of India's second lunar mission Chandrayaan 2 as there has been delay in getting the required nuclear material from Russia.
Quote from:
The nuclear power is expected expected to increase the lifespan of the mission as life of Chandrayaan 1, launched in 2008, was cut short by two months due to technical problems. Bhabha Atomic Research Centre (BARC) has been also working to make the nuclear material for the mission.
Quote from:
"We had plans to give nuclear power to
Chandrayaan 2 but now we have decided to put it off for time being as we don't want further delay in launch which is scheduled for 2017-18," said ISRO satellite centre director M Annadurai.
Quote from:
The second lunar mission was l scheduled for launch in 2013 as joint operation between India and Russia. But after failure of Russia’s Phobos-Grunt, mission to probe Maritian moon, it decided to do an internal assessment of its programme.
Quote from:
India then decided to make Chandryaan 2 as a completely indigenous mission with all three components of the mission orbiter, lander and rover made in the country.
Quote from:
"Once we get the material we have to do necessary experiments which will further delay the mission. There has been some delay in getting material from Russia," he said.
Quote from:
Quote
ISRO is now looking forward to use the nuclear powered mission in future projects.
"We plan to take Chandrayaan 3 and 4 in near future and we may use nuclear power in those missions. By that time we will be completely ready with the materials and other things," he added.
Quote from:
India plans to have a high altitude polar landing of Chandrayaan 2 and it will have a capability to soft land and carry in-situ chemical analysis of the lunar surface. A new throttled engine is being developed that will reduce the thrust for landing on the surface of the moon.

Offline Ohsin

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #195 on: 02/04/2016 09:20 PM »
Here is a slide on OHRC camera (Orbiter High Resolution Camera) that would image landing site at 0.25 m resolution from 100 km orbit taken from presentation at NRSC UIM 2016

http://livestream.nrsc.gov.in/CartoSession-4.html
« Last Edit: 02/04/2016 09:21 PM by Ohsin »
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline ss1_3

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #196 on: 02/16/2016 03:47 PM »
Not sure if this official VSSC payload info has been posted before:

http://spl.gov.in/index.php?option=com_content&view=article&id=99&Itemid=679&lang=en

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 Chandrayaan-2 is the second Indian Lunar Mission which will be launched in near future. Chandrayaan-2 consist of an Orbiter, a Lander and a Rover. SPL, VSSC, has the following experiments onboard Chandryaan-2 orbiter and Lander.

•CHACE-2 (CHandra's Altitudinal Composition Explorer) onboard Chandrayaan-2 Orbiter
•ChaSTE (Chandra’s Surface Thermophysical Experiment) on Chandrayaan-2 Lander
•RAMBHA (Radio Anatomy of Moon Bound Hypersensitive ionosphere and Atmosphere) on Chandrayaan-2 Lander, which consisting Langmuir Probe (LP), Dual Frequency Radio Science(DFRS) experiment and radio sounder.



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CHACE-2 (CHandra's Atmospheric Composition Explorer-2) on Chandrayaan-2 Orbiter

The CHACE-2 experiment aboard the Chandrayaan-2 orbiter will study the neutral composition of the Lunar exosphere from a circular polar orbit of ~100 km. The CHACE-2 instrument will be similar to MENCA. Apart from obtaining mass spectra of the tenuous Lunar exosphere, the instrument will have capability of tracking the distribution of a pre-selected set of species with higher temporal resolution.

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ChaSTE (Chandra’s Surface Thermophysical Experiment)

 ChaSTE is one of the scientific experiment on the Lander of the Chandrayaan-2 mission. ChaSTE is a thermal probe with the  objective of making in-situ measurements of temperature profile on the lunar surface up to a depth of 100 mm near the polar region, and the measurements of thermal conductivity of lunar regolith. ChaSTE would be the first-ever in-situ thermal measurements on lunar surface near the polar region.

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RAMBHA (Radio Anatomy of Moon Bound Hypersensitive ionosphere and Atmosphere)

The RAMBHA experiment onboard the forthcoming Chandrayaan-2 Lander mission is a unique payload package that would provide a comprehensive exploration of Lunar plasma environment. RAMBHA is conceived as a suite of three experiments, viz. (i) a Langmuir Probe and (iii) a dual frequency radio science (DFRS) experiment.

Offline sanman

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Offline Ohsin

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #198 on: 03/12/2016 10:55 AM »
Quote
Chandrayaan-1 finds signatures of recent shallow moonquakes‏
<snip>
The moonquakes may also provide new insights about mechanism of earthquakes, Kumar said adding that ISRO's Moon rover in the Chandrayaan-II mission slated for 2017 should, therefore, carry a seismometer to study these activities in the Schrödinger basin.

http://www.natureasia.com/en/nindia/article/10.1038/nindia.2016.34

Could it be pulled without any delay?
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline antriksh

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Re: GSLV-MkII, Chandrayaan-2, NET 2018-Q1
« Reply #199 on: 03/28/2016 03:09 AM »
Lunar rover for Chandrayan II Lunar Mission: 3D Map Generation using Structured Light, Kinematics, and Path Planning

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we have described the development of the rover and a map generation system for 3D terrain using structured light
for a six wheel rover navigation problem. A structured light system enables the detection and estimation of
both positive and negative obstacles. The structured light system is capable of working even in high lux
environments to deliver highly accurate maps that can reach sub millimetre accuracies

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As specified by ISRO, the design of the rover is based on the well proven space rover “Sojourner” that has been
deployed for the exploration of Mars since July, 1997. It has 6 wheels, all of which are driven by DC brushless
servo motors. The front and the rear wheels also have steering motors. The rover has two rocker arms connected
to the rover body through a differential. Each
« Last Edit: 03/28/2016 03:10 AM by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda