Chandrayan-2 Mission

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disha
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Chandrayan-2 Mission

Postby disha » 18 Jun 2019 23:57

Requesting mods to be indulgent for this epochal moment and keep the thread alive till the Chandrayan-2 mission completes.

The thread is to discuss only Chandrayan-2 mission. No comparisons please. Of course, all articles related to chandrayaan-2 mission and images/videos related to that can be posted. Though for images, there is a separate thread.

This links are very helpful:

https://www.isro.gov.in/chandrayaan2-home

Mission https://www.isro.gov.in/chandrayaan2-mission

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Re: Chandrayan-2 Mission

Postby ramana » 19 Jun 2019 01:01

Good idea was going to open on the same topic.
Only addition is lets keep the thread for any new data that gets revealed after the mission landing.

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Re: Chandrayan-2 Mission

Postby disha » 19 Jun 2019 10:11

Adding further information from ISRO's website:

What are the scientific objectives of Chandrayaan 2? Why explore the lunar South Pole?


The Moon provides us the best linkage to Earth’s early history and an undisturbed record of the nascent Solar System environment. While a few mature models do exist, the Moon's origin still needs further explanations. Extensive mapping of the lunar surface will aid us in studying variations in its composition — an essential piece of information in tracing the Moon's origin and evolution. Evidence of water molecules — discovered by Chandrayaan 1 — and the extent of its distribution on the lunar surface and sub-surface also require further studies.

The lunar South Pole is especially interesting because a larger section of its surface stays in the shadow than the North Pole. There is a possibility of the presence of water in permanently shadowed areas around it. In addition, the south polar region has craters that are cold traps, containing a fossilised record of the early Solar System.

Chandrayaan 2 will use the Vikram lander and Pragyan rover to attempt a soft landing in a high plain between two craters — Manzinus C and Simpelius N — at a latitude of about 70° south.

What makes Chandrayaan 2 special?

1st space mission to conduct a soft landing on the Moon's south polar region

1st Indian expedition to attempt a soft landing on the lunar surface with home-grown technology

1st Indian mission to explore the lunar terrain with home-grown technology

4th country ever to soft land on the lunar surface

Orbiter
Weight 2,379 kg

Electric Generation Capability 1,000 W

At the time of launch, the Chandrayaan 2 Orbiter will be capable of communicating with Indian Deep Space Network (IDSN) at Byalalu as well as the Vikram Lander. The mission life of the Orbiter is one year and it will be placed in a 100X100 km lunar polar orbit.

Lander — Vikram
Weight 1,471 kg

Electric Generation Capability 650 W

The Lander of Chandrayaan 2 is named Vikram after Dr Vikram A Sarabhai, the Father of the Indian Space Programme. It is designed to function for one lunar day, which is equivalent to about 14 Earth days. Vikram has the capability to communicate with IDSN at Byalalu near Bangalore, as well as with the Orbiter and Rover. The Lander is designed to execute a soft landing on the lunar surface.

Rover — Pragyan
Weight 27 kg

Electric Generation Capability 50 W

Chandrayaan 2's Rover is a 6-wheeled robotic vehicle named Pragyan, which translates to 'wisdom' in Sanskrit. It can travel up to 500 m (½-a-km) and leverages solar energy for its functioning. It can only communicate with the Lander.

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Re: Chandrayan-2 Mission

Postby disha » 19 Jun 2019 10:35

Key payloads and research area

Chandrayaan 2 Large Area Soft X-ray Spectrometer -> Elemental composition of the Moon

Imaging IR Spectrometer -> Mineralogy mapping and water-ice confirmation

Synthetic Aperture Radar L & S Band -> Polar-region mapping and sub-surface water-ice confirmation

Orbiter High Resolution Camera ->High-res topography mapping

Chandrayan Surface Thermo-physical Experiment -> Thermal conductivity and temperature gradient

Alpha Particle X-ray Spectrometer and Laser Induced Breakdown Spectroscope -> In-situ elemental analysis and abundance in the vicinity of landing site

Key Timelines
18th September, 2008 Prime Minister Manmohan Singh approves the Chandrayaan2 lunar mission

Launch Window July 9, 2019 to July 16, 2019

Landing on Moon September 6, 2019

Scientific Experiment on Moon 1 Lunar day (14 earth days)

Orbital Experiment Will be operational for 1 year

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Re: Chandrayan-2 Mission

Postby prasannasimha » 19 Jun 2019 10:57


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Re: Chandrayan-2 Mission

Postby prasannasimha » 19 Jun 2019 10:58

https://youtu.be/lpM97jDpIxs

Full introductory video

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Re: Chandrayan-2 Mission

Postby disha » 20 Jun 2019 23:23

Nice article from Swarajyamag

https://swarajyamag.com/science/landing-on-lunar-surface-how-chandrayaan-2-will-travel-from-earth-to-moon

this region of the moon hides a dense metallic mass estimated to be 4.8 quintillion pounds. Right, that’s 4,800,000,000,000,000,000 pounds — all zeros included.....

...Now comes the trickiest part of the mission. After the module arrives in the 100 km orbit, the lander will separate from the orbiter, which will continue to revolve around the moon. A separate entity now, the lander will de-boost with the firing of its four breaking engines. This manoeuvre will bring it to a periapsis of around 18 kilometres. When the lander reaches this point, that is at the height of 18 km, the onboard position detection camera and hazard avoidance sensor study the landing site for accuracy. Using the data obtained, the lander will autonomously determine the trajectory it will have to take to get to its pre-determined landing site, and steer itself to a location 100 metres above the site.

Here, the lander will hover and allow the hazard avoidance sensor to determine the safest landing point. Then, it will be guided to this point and at the height of 2 metres above this location, the thrust will be cut off and the lander will go into a free fall to the impact point with the landing legs attached to it absorbing the impact shock.



And good infographics, for example:

Image

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Re: Chandrayan-2 Mission

Postby Kakarat » 03 Jul 2019 00:40

Anyone planning to go to GSLV MKIII-M1 / Chandrayaan-2 Launch?
Registration for the viewing gallery starts tomorrow

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Re: Chandrayan-2 Mission

Postby sanjaykumar » 03 Jul 2019 02:55

Hope their orbital and approach calculations have corrected for the gravitational anisotropy resulting from that metallic body.


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Re: Chandrayan-2 Mission

Postby ArjunPandit » 03 Jul 2019 16:03

So sad, because of short notice i cant see it..but for the gagan yaann would try my best..ISRO should monetise it..people go to watch these things in US. With so many parents pushing kids to STEM, nothing better than this..the very thought of seeing and Indian launch gives me goose bumps...

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Re: Chandrayan-2 Mission

Postby Kakarat » 03 Jul 2019 16:44

ArjunPandit wrote:So sad, because of short notice i cant see it..but for the gagan yaann would try my best..ISRO should monetise it..people go to watch these things in US. With so many parents pushing kids to STEM, nothing better than this..the very thought of seeing and Indian launch gives me goose bumps...


This is the longest notice we have had for a launch in recent times, the launch date was announced more than a month ago.
Also registration for viewing gallery use to start 5 days before launch this time its 10 days before launch

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 03 Jul 2019 16:50

Kakarat wrote:
ArjunPandit wrote:So sad, because of short notice i cant see it..but for the gagan yaann would try my best..ISRO should monetise it..people go to watch these things in US. With so many parents pushing kids to STEM, nothing better than this..the very thought of seeing and Indian launch gives me goose bumps...


This is the longest notice we have had for a launch in recent times, the launch date was announced more than a month ago.
Also registration for viewing gallery use to start 5 days before launch this time its 10 days before launch

from the pics it looks like it has a capacity of at least few thousands..lets keep it 1,000 if they can be sold at few 100s it can generate few lakhs..can't that money be used for research/or scholarships??

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Re: Chandrayan-2 Mission

Postby Kakarat » 03 Jul 2019 17:11

ArjunPandit wrote:
Kakarat wrote:
This is the longest notice we have had for a launch in recent times, the launch date was announced more than a month ago.
Also registration for viewing gallery use to start 5 days before launch this time its 10 days before launch

from the pics it looks like it has a capacity of at least few thousands..lets keep it 1,000 if they can be sold at few 100s it can generate few lakhs..can't that money be used for research/or scholarships??


Its not complete yet, Its under construction and every time we visit there is a improvement. Presently its free maybe they will charge once it is completed

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Re: Chandrayan-2 Mission

Postby UlanBatori » 03 Jul 2019 17:35

Should charge for parking too. Akash Vani can provide commentary as ppl sit in the clogged "traffic" trying to get out of the parking lot: "Launch vehicle is now crossing the Coast of Fiji".. Like Mongolian delegation trying to escape after STS launch. There it was Africa.

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Re: Chandrayan-2 Mission

Postby disha » 04 Jul 2019 03:13

They should charge for the stands, the parking and also offer bullock rides. Bullock rides are for journos and aam-junta alike - for a cost. And between certain points. All bullocks bedecked and colorful.

I am so wishing for our gaganaviharins to go to the launch pad on a bullock cart or at least few symbolic steps on a cart drawn by bullocks.

For the rest rooms at the launch site, on paper towels and toilet papers - they should print the times cartoon.

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Re: Chandrayan-2 Mission

Postby thammu » 04 Jul 2019 19:35


Kakarat
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Re: Chandrayan-2 Mission

Postby Kakarat » 04 Jul 2019 19:53

I will be going and most probably by train haven't finalised transport yet

https://sr.indianrailways.gov.in/cris/u ... NEL-DN.pdf
https://sr.indianrailways.gov.in/cris/u ... NEL-UP.pdf

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Re: Chandrayan-2 Mission

Postby thammu » 05 Jul 2019 10:17

Kakarat wrote:I will be going and most probably by train haven't finalised transport yet

https://sr.indianrailways.gov.in/cris/u ... NEL-DN.pdf
https://sr.indianrailways.gov.in/cris/u ... NEL-UP.pdf


Be in touch. bumeshrai@hotmail.com

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Re: Chandrayan-2 Mission

Postby Kakarat » 05 Jul 2019 14:47

ArjunPandit wrote:
disha wrote:They should charge for the stands, the parking and also offer bullock rides. Bullock rides are for journos and aam-junta alike - for a cost.And between certain points. All bullocks bedecked and colorful.

I am so wishing for our gaganaviharins to go to the launch pad on a bullock cart or at least few symbolic steps on a cart drawn by bullocks.

For the rest rooms at the launch site, on paper towels and toilet papers - they should print the times cartoon.

+my fav with the special Indian style toilet with Indian railway length mugs and toilet paper replaced by sand paper with BBC comments of UK aid money printed on it..


ISRO has started a good initiative to allow public to view launches and inspire youngsters and are planning more
This is a thread is to discuss only Chandrayan-2 mission and look at what we are discussing that too by BRF Oldies, if this is not signs of deteriorating quality of BRF like some say then what is?

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 05 Jul 2019 15:08

Snippettes from ISRO Pages:

https://www.isro.gov.in/gslv-mk-iii-cha ... -2-mission
Chandrayaan-2 will be launched from Satish Dhawan Space Center at Sriharikota on-board GSLV Mk-III on 15th July 2019. It will be injected into an earth parking 170 x40400 km orbit. A series of maneuvers will be carried out to raise its orbit and put Chandrayaan-2 on Lunar Transfer Trajectory. On entering Moon's sphere of influence, on-board thrusters will slow down the spacecraft for Lunar Capture. The Orbit of Chandrayaan-2 around the moon will be circularized to 100x100 km orbit through a series of orbital maneuvers. On the day of landing, the lander will separate from the Orbiter and then perform a series of complex maneuvers comprising of rough braking and fine braking. Imaging of the landing site region prior to landing will be done for finding safe and hazard-free zones. The lander-Vikram will finally land near South Pole of the moon on 6th September 2019. Subsequently, Rover will roll out and carry out experiments on Lunar surface for a period of 1 Lunar day which is equal to 14 Earth days. Orbiter will continue its mission for a duration of one year


https://www.isro.gov.in/chandrayaan2-home-0
What are the scientific objectives of Chandrayaan 2? Why explore the Lunar South Pole?
Moon provides the best linkage to Earth’s early history. It offers an undisturbed historical record of the inner Solar system environment. Though there are a few mature models, the origin of Moon still needs further explanations. Extensive mapping of lunar surface to study variations in lunar surface composition is essential to trace back the origin and evolution of the Moon.
Evidence for water molecules discovered by Chandrayaan-1, requires further studies on the extent of water molecule distribution on the surface, below the surface and in the tenuous lunar exosphere to address the origin of water on Moon
.

The lunar South Pole is especially interesting because of the lunar surface area here that remains in shadow is much larger than that at the North Pole. There is a possibility of the presence of water in permanently shadowed areas around it. In addition, South Pole region has craters that are cold traps and contain a fossil record of the early Solar System.

Accordingly, Chandrayaan-2 will attempt to soft land the lander -Vikram and rover- Pragyan in a high plain between two craters, Manzinus C and Simpelius N, at a latitude of about 70° south.

Image

Science experiments
Image


Key payloads

Chandrayaan 2 Large Area Soft X-ray Spectrometer: Elemental composition of the Moon

Imaging IR Spectrometer: Mineralogy mapping and water-ice confirmation

Synthetic Aperture Radar L & S Band: Polar-region mapping and sub-surface water-ice confirmation

Orbiter High Resolution Camera: High-resolution topography mapping

Chandra's Surface Thermo-physical Experiment: Thermal conductivity and temperature gradient

Alpha Particle X-ray Spectrometer and Laser Induced Breakdown Spectroscope: In-situ elemental analysis and abundance in the vicinity of landing site

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 05 Jul 2019 15:21

https://www.isro.gov.in/chandrayaan2-sp ... cecraft-pg

Orbiter
Weight 2,379 kg
Electric Power Generation Capability 1,000 W

"At the time of launch, the Chandrayaan 2 Orbiter will be capable of communicating with Indian Deep Space Network (IDSN) at Byalalu as well as the Vikram Lander. The mission life of the Orbiter is one year and it will be placed in a 100X100 km lunar polar orbit."

1. I was not aware of IDSN: Here is what wiki tells: https://en.wikipedia.org/wiki/Indian_Deep_Space_Network
Seems like early days and primarily for Chandrayaan 1, 2 and MoM
sadly the isro link doesnt seem to work
2. Wanted to do a random comparison of what NASA's opportunity MARS rover
https://mars.nasa.gov/mars2020/mission/ ... cal-power/
About 110 watts at launch, declining a few percent per year
Wonder how are NASA managing with such low power? Solar? Couldnt find panels on the rover. The power seems to be radioisotope based
"Mars 2020 carries a radioisotope power system. This power system produces a dependable flow of electricity using the heat of plutonium's
radioactive decay as its "fuel."

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 05 Jul 2019 15:23

^^kakarat sir..requested mods to delete the post...after the BS had gone one the value add mod....but thanks for the reminder anyways...have a question..can someone see the Chandrayaan 1 through telescope?

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 08 Jul 2019 19:33

https://www.newsnation.in/science-news/indias-chandrayaan-2-vs-chinas-change-4-detailed-comparison-between-two-lunar-missions-article-229608.html

Was comparing the mission objectives of the Chandrayan 2 v/s chinese lunar landers..came across the above link. It has few points worth highlighting again

Following the Lander, Rover will deploy and perform a few experiments on the lunar surface of a period of one lunar day, which equals 14 days on Earth. In the meantime, the orbiter will continue with its mission, which is scheduled to last a year.


To demonstrate the ability to soft-land on the surface of the Moon and to operate a rover on the surface.

To study the surface of the moon.

To study the density of the electrons in the Moon's ionosphere that is the uppermost part of the atmosphere that is ionised by radiation.

To identify or to find out the minerals and indicators of hydroxyl and water molecules.

The Chandrayaan-2 mission is completely an indigenous as all payloads and all parts are developed by India.


Difference between Chandrayaan-2 & Chang’e -4

ISRO’s Chandrayaan-2 will have an Orbiter which will go around the moon. On the other hand, China’s Chang'e-4 will use relay satellite to halo orbit that is to orbit an empty point in space at the L2 Lagrange Point.

Chandryaan-2 consists of three payloads namely the lander, the rover and the orbiter. Chang'e-4 consists of 4 payloads namely relay satellite, orbiting microsatellite, lander and rover.



Chandrayaan-2 mission is completely indigenous mission that is completely developed in India only. Chang'e-4 carries international payloads which were developed by Germany, Sweden, the Netherland and Saudi Arabia.

Spacecraft properties of Chandrayaan-2: Launch mass Combined: 3,877 kg. Also, Payload mass: Orbiter- 2,379 kg, lander-1,471 kg and rover- 27 kg.

Spacecraft properties of Chang’e-4: Launch mass: Lander- 1200 kg and Rover 140 kg.


On the other side, Chandrayaan-2 will reveal how solar wind interacts with the lunar surface and help in determining the process behind the formation of lunar water.


Looks like chandrayan 2 is not going on dark side..but on near side

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Re: Chandrayan-2 Mission

Postby Sridhar » 08 Jul 2019 23:24


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Re: Chandrayan-2 Mission

Postby Amber G. » 09 Jul 2019 00:48

ArjunPandit wrote:.......have a question..can someone see the Chandrayaan 1 through telescope?

From earth based telescopes :

Chandrayaan is quite small to see by optical telescopes but we do have larger radio telescopes which can detect even such small objects far away. Remember these kind of telescopes were able to "see" black-holes far far away. Resolving power as if one can read newspaper in New York from California.

There was no radio contact with Chandrayaan-I for last 10 years (AFAIK since August 2009) but we can calculate its orbit quite exactly (If you read my math for orbit calculations in brf :) ). Yes, it is is still circling some 200 Km above the moon, and the orbit around the moon takes two hours and 8 minutes. So if we point the telescope at the right point..

So we (NASA) used this math and turned the giant 300-foot Green Bank Telescope in West Virginia and Goldstone Deep Space Communications Complex in California, and was able to see and pinpoint the exact location of the craft.
BTW this is one example of great cooperation between Indian and US scientists as this technique is likely to be used to pinpoint small space junk in earth's orbit and small asteroids heading towards earth..

Using these kind of radio telescopes One can literally see a object just a few meters wide at the distance of the moon!

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 09 Jul 2019 19:12

https://www.hindustantimes.com/lucknow/ ... xRzFL.html

Scientists at the Indian Institute of Technology (IIT-K) have developed a motion planning and generation software for Chandrayan-2, which will help the rover in its movement and guide its route on the lunar surface. It will also save energy and time required to reach the target area.

The Indian Space Research Organization (ISRO) would launch its second mission to the moon- Chandrayan-2 on July 15. The mission expected to reach the moon by September 6-7, 2019.

Prof Ashish Datta of mechanical engineering department and Prof KS Venkatesh of electrical engineering who have developed the software said the Indian Space Research Organisation (ISRO) has approved the planning and mapping generation software developed by them.

They said the lunar rover software has been developed and designed in the country for the first time. “It was long due. This has enabled the country to find a place among those having the technique of making lunar rover software,” they said.

Prof Datta, who has been working on the intelligent control system, micro-sensor and bio-robotics said it took one year to develop the software based on an algorithm method.

The rover fitted with the software developed by IIT-K would trace water and other mineral wealth in the lunar surface. The rover would also send a relevant picture to the laboratory for further research and examination.

The software would be operated with a 20-watt solar battery and assist the rover in drilling the lunar surface to trace water and other chemicals inside it. Fifteen trials to trace chemical and water could be done with the help of the software, they claimed.

heart warming to see that the contributions of desi institutions bearing fruit

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Re: Chandrayan-2 Mission

Postby Amber G. » 10 Jul 2019 05:25

^^^
Dr Koppillil Radhakrishnan, will be the Chief Guest, 7th Convocation, 13th July, 2019 at IIT Kanpur.

Some may find this interesting (for personal viewing only - not for wide distribution). An old IITK Presentation..
http://students.iitk.ac.in/power/Presentation1.ppt

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 11 Jul 2019 01:07

^^Amber sir, are lander and rovers irradiated?

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Re: Chandrayan-2 Mission

Postby SwamyG » 11 Jul 2019 07:41

Why does the rover have the capability to just communicate with the lander? The lander's life seems to be for 1 lunar day (14 days). Does it mean, after 14 days....the rover has its end as well?

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Re: Chandrayan-2 Mission

Postby Mort Walker » 11 Jul 2019 08:56

SwamyG wrote:Why does the rover have the capability to just communicate with the lander? The lander's life seems to be for 1 lunar day (14 days). Does it mean, after 14 days....the rover has its end as well?


That's what it implies, but I don't see why it couldn't be used in the next lunar day when its batteries could be charged. It seems the Vikram does not have a nuclear thermoelectric generator with Pu238 like that on space probes such as Voyager. It does have at least one solar panel. These are all engineering design choices when every gram of mass must be accounted for.

The Pragyan rover has a solar panel, but it only communicates with Vikram and not ground control on earth - this is due to weight issues. A larger gain antenna and more power would require a heavier rover. Pragyan is only 27 Kg and to allow for ground control communication, it would probably need to be 10 Kg heavier, but then you've got to make its batteries and solar panels bigger too to move it the 500 meters planned. This would add at least another 10 Kg. It would then necessitate a bigger payload section on Vikram to carry the Pragyan; and the whole Chandrayaan-2 would likely be at least 100 Kg heavier.

It's not clear to me if Vikram communicates directly with ground control, or if it only communicates with the Chandrayaan-2 orbiter. I know weight is a concern, but I would think the designers would provide redundant communication paths to ground control; directly and via the orbiter.

---------

On another note, can we have someone here put a sticky at the beginning of this thread of the exact key dates and times? That is when Chandrayaan-2 is raised in earth orbit, trans-lunar injection, lunar orbit, separation of Vikram lander, lowering of Vikram, landing of Vikram, and deployment of Pragyan?

I haven't been as excited since 1969 when watching Apollo 11, some 50 years ago.
Last edited by Mort Walker on 11 Jul 2019 09:30, edited 1 time in total.

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Re: Chandrayan-2 Mission

Postby Mort Walker » 11 Jul 2019 09:09

ArjunPandit wrote:^^Amber sir, are lander and rovers irradiated?


They appear to be setup in an electronics clean room and are most likely designed to withstand ionizing radiation from space travel. However, there is no need to irradiate Chandrayaan-2 as the moon is essentially a vacuum with no living organisms to contaminate. It may be possible that bacteria from earth could survive the "climate" and "atmosphere" of the moon, but who cares?

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Re: Chandrayan-2 Mission

Postby ArjunPandit » 11 Jul 2019 17:06

<POOF>

Admin Note: This thread is to track the mission. So it remains clean of quasi-politico/social opinions. kakarat, please use reporting function for reporting anything that does not conform
Last edited by hnair on 11 Jul 2019 18:25, edited 1 time in total.

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Re: Chandrayan-2 Mission

Postby disha » 12 Jul 2019 03:47

Mort Walker wrote:They appear to be setup in an electronics clean room and are most likely designed to withstand ionizing radiation from space travel. However, there is no need to irradiate Chandrayaan-2 as the moon is essentially a vacuum with no living organisms to contaminate. It may be possible that bacteria from earth could survive the "climate" and "atmosphere" of the moon, but who cares?


Bacteria from Earth may already have found shelter on Moon and might even have evolved differently there. It is quite possible that any meteor impact on Earth might have generated a plume with small particles reaching moon and bacteria/viruses using it as a life boat.

However it is obvious that finding life in isolated pockets on moon hanging on to dear life by a very thin margin does not mean that life is abundant on moon.

Article IX of Outer Space Treaty covers space contamination in general guidelines. There is international council of science which forms committees to look into this matter and drive appropriate international and national legislations. In fact there is a whole body of legal lawyers and science lawyers who make a career out of this treaties.

In the end, the only treaty that space agencies try to adhere is to reduce impact on downstream nations from rocket stages jettisoned as part of launch!! The rest is all honour system.

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Re: Chandrayan-2 Mission

Postby SwamyG » 12 Jul 2019 07:35

Mort Walker wrote:It's not clear to me if Vikram communicates directly with ground control, or if it only communicates with the Chandrayaan-2 orbiter. I know weight is a concern, but I would think the designers would provide redundant communication paths to ground control; directly and via the orbiter.

It, Vikram, can communicate with IDSL near Bangalore, as well as the Orbiter.

disha
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Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Chandrayan-2 Mission

Postby disha » 12 Jul 2019 08:03

https://www.isro.gov.in/chandrayaan2-latest-updates

July 10, 2019
Shroud final assembly completed
Cryogenic stage (C25) On Board Elementary checks completed
Liquid stage (L110) control system checks completed

July 9, 2019
Routing and termination of pyros, pressure sensors, Umbilical Connection Unit(UCU) separation connector cables end to end checks completed.

July 8, 2019
Full Dress Rehearsal-1 (FDR-1) in progress.

July 7, 2019
1. GSLV MkIII-M1 moved to launch pad.
2. Spacecraft is powered and health check in progress.

July 6, 2019
Launch vehicle ready for movement to launch pad

July 5, 2019
1. Link checks for lander & orbiter from ground station in progress.
2. Vehicle phase 3 level 2A checks completed.

July 4, 2019
Integration of encapsulated assembly of Chandrayaan-2 with launch vehicle completed.

July 2, 2019
1.Equipment bay camera cowling assembly completed.
2. Radio frequency checks completed with Chandrayaan 2 spacecraft.
3. Payload fairing assembly in progress.

July 2, 2019
Online registration process for witnessing the forthcoming GSLV MKIII-M1 / Chandrayaan-2 mission will commence @ 00:00 hrs on 04th July 2019

July 1, 2019
Chandrayaan -2 getting ready for integration with GSLV launcher.

June 30, 2019
1. Electrical checks and pyro arming of the vehicle completed.
2.Launch vehicle battery charging completed.

June 30, 2019
1. Electrical checks and pyro arming of the vehicle completed.
2.Launch vehicle battery charging completed.

June 29, 2019
Vikram lander (assembled with Pragyan Rover) integrated with Orbiter.

June 29, 2019
Rover after completion of all tests integrated with lander Vikram

June 28, 2019
GSLV MkIII-M1/Chandrayaan 2: Assembly of the batteries for all stages of launch vehicle completed


June 18, 2019
Chandrayaan2 - From Pole to Pole
Image

June 03, 2019
The challenges of a Moon landing
Image

May 15, 2019
Benefits of Chandrayaan-2
Image

May 14, 2019
Chandrayaan-2 update
Image

disha
BR Mainsite Crew
Posts: 7100
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Chandrayan-2 Mission

Postby disha » 12 Jul 2019 08:06

Must watch video. Worth every second


disha
BR Mainsite Crew
Posts: 7100
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Chandrayan-2 Mission

Postby disha » 12 Jul 2019 08:10

And this one too:


disha
BR Mainsite Crew
Posts: 7100
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Chandrayan-2 Mission

Postby disha » 12 Jul 2019 08:13

And I missed this!


disha
BR Mainsite Crew
Posts: 7100
Joined: 03 Dec 2006 04:17
Location: gaganaviharin

Re: Chandrayan-2 Mission

Postby disha » 12 Jul 2019 08:18

A tiny but very important bit about GSLV Mk-III (and its solid rocket boosters) in this video related to Chandrayan-2



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