Indian Martian exploration program

pmaitra

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ISRO MOM Mission: Brochure of Spacecraft, courtesy ISRO

[PDF]http://www.isro.gov.in/pslv-c25/pdf/pslv-c25-brochure.pdf[/PDF]
 

pmaitra

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ISRO MOM Mission: Brochure of Launcher, courtesy ISRO

[PDF]http://www.isro.gov.in/pslv-c25/pdf/pslv-c25.pdf[/PDF]
 

CrYsIs

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India's Mars mission leaves Earth's orbit, surpasses Chinese ambitions
Absolute garbage piece of article.Though being proud of our achievements in space we must be realistic.

At present we have the capability of launching only light weight satellites.

Our GSLV is the same weight class as Atlas V and long march 3B but the former carries only 2500 kgs to GTO where as the later two carry 13,000 kg & 5500 kgs respectively to GTO.We have still not mastered cryogenic and not even started semi cryogenic.

This goes on to show we have a lot of catching up to do.
 

pmaitra

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Absolute garbage piece of article.Though being proud of our achievements in space we must be realistic.

At present we have the capability of launching only light weight satellites.

Our GSLV is the same weight class as Atlas V and long march 3B but the former carries only 2500 kgs to GTO where as the later two carry 13,000 kg & 5500 kgs respectively to GTO.We have still not mastered cryogenic and not even started semi cryogenic.

This goes on to show we have a lot of catching up to do.
Correct. Part of the credit for Atlas-V goes to the Russian RD-180 engine. Then there is the Energiya, the daddy of all rockets.
 

AVERAGE INDIAN

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Absolute garbage piece of article.Though being proud of our achievements in space we must be realistic.

At present we have the capability of launching only light weight satellites.

Our GSLV is the same weight class as Atlas V and long march 3B but the former carries only 2500 kgs to GTO where as the later two carry 13,000 kg & 5500 kgs respectively to GTO.We have still not mastered cryogenic and not even started semi cryogenic.

This goes on to show we have a lot of catching up to do.
yeah agree atleast ISRO is diong some thing
 
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AVERAGE INDIAN

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I might be in a minority here, but I don't see why this Indo-Chinese space race is being bandied about.

PRC has already sent people to space, and most importantly, brought them back safely. They are way ahead. This really needs to stop.
maitra ji speaking realistically like you said NASA sent people to moon landed and then returned back i believe the involvement of private industries is the the good sign rest is just boasting
 
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pmaitra

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maitra ji speaking realistically like you said NASA sent people to moon landed and then returned back i believe the involvement of private industries is the the good sign rest is just boasting
The American endeavour to put a man on the Moon was largely meant to beat the Soviet Union in the space race.

Now, when one does something like that (USA sending man to the Moon or PRC sending man to space), then they are way ahead of us (India). Whether they boast about it or not, is a different matter. One can boast only if they are ahead. Whether one chooses to boast or not is their choice. We don't have that choice, because, we are way behind.
 

AVERAGE INDIAN

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The American endeavour to put a man on the Moon was largely meant to beat the Soviet Union in the space race.

Now, when one does something like that (USA sending man to the Moon or PRC sending man to space), then they are way ahead of us (India). Whether they boast about it or not, is a different matter. One can boast only if they are ahead. Whether one chooses to boast or not is their choice. We don't have that choice, because, we are way behind.

Yep I said the same thing regarding the artical not about NASA
 

happy

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Mangalyaan crosses Moon's orbit; travelling 10 lakh km a day

CHENNAI: ISRO's Mars Orbiter, which was placed in inter-Mars trajectory in the early hours yesterday, has crossed Moon's orbit and is travelling beyond Earth's natural satellite.

"The Mars Orbiter spacecraft has crossed the Moon orbit. So technically after crossing our Chandrayaan's orbit, it is now travelling beyond the Moon. It is crossing around 10,00,000 km per day," ISRO sources told PTI.
Mangalyaan crosses Moon's orbit; travelling 10 lakh km a day - Economic Times
 

kseeker

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By PTI | 9 Dec, 2013, 06.12PM IST

CHENNAI: As India's maiden mission to Mars continues its fuel-less cruise to the Red Planet, ISRO would this week carry out further manoeuvres aimed at keeping the spacecraft in the intended trajectory.

The first of the four Trajectory Correction Manoeuvres (TCM) would be carried out on December 11, Indian Space Research Organisation (ISRO), which launched the Mars Orbiter Mission (MOM) on November 5, said today.

Though the spacecraft is moving towards the Red Planet in the ..

Read more at:
First 'Mars Orbiter Mission' trajectory correction manoeuvre planned for December 11 - The Economic Times
 

roma

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Absolute garbage piece of article.Though being proud of our achievements in space we must be realistic.
At present we have the capability of launching only light weight satellites.
Our GSLV is the same weight class as Atlas V and long march 3B but the former carries only 2500 kgs to GTO where as the later two carry 13,000 kg & 5500 kgs respectively to GTO.We have still not mastered cryogenic and not even started semi cryogenic.
This goes on to show we have a lot of catching up to do.
has been my position all along

much of the work in the mars project is being done by the forces of nature
we didnt land a rover as chinas on the moon - we used a pslv which was a dicey affair
we just piggy-backed on nature , while claiming the credit for ourselves

the main focus is on the gslv which has been either delayed or shall we say scheduled for 1st wk jan 2014
im not sure if this new dr radha head of isro is some kind of a PR man in having mars side-shows to keep the nation occupied
and gslv lift-off as a happy new year present
or is he trying to incresse the number of projects to bring more national interest in isro
- and that would be a noble objective

should we really be having these side-shows to try to impress the world,
rather than concentrate on our main objective(s) ?

dr radha can have whatever side-shows he likes but,
we wont be distracted - gslv is the main project -pls get it right !
- and if he does, then he can have all the side-shows he wants !
 

Free Karma

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The first Trajectory correction manoeuver has been completed successfully! (4 hours ago)
First Trajectory Correction Manoeuver completed successfully.
The first Trajectory Correction Manoeuvre (TCM) of Spacecraft was carried out successfully at 06:30 hrs (IST) by firing the 22 Newton Thrusters for a duration of 40.5 seconds. The spacecraft is travelling at a distance of about 29 lakh (2.9 million) km away from Earth.
It takes 20 seconds for a two way communication!
ISRO: Mars Orbiter Mission
https://www.facebook.com/isromom

With all the fuss over the elections and lots of work I nearly forgot about the TCMS!
 

A chauhan

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Re: ISRO News and Updates

ISRO successfully performs first Trajectory Correction Manoeuvre on Mars orbiter

By PTI | 11 Dec, 2013, 09.13AM IST

CHENNAI: The first Trajectory Correction Manoeuvre of India's maiden mission to Mars was on Wednesday carried out successfully by ISRO scientists on the spacecraft, which is presently travelling some 2.9 million kms away from Earth.

"The first Trajectory Correction Manoeuvre (TCM) of Spacecraft was carried out successfully at 06:30 hrs (IST) by firing the 22 Newton Thrusters for a duration of 40.5 seconds. The spacecraft is travelling at a distance of about 29 lakh (2.9 million) km away from Earth," ISRO said in a statement.

The TCMs fine tune the trajectory of the spacecraft to keep it travelling in the intended track towards the red planet.

Ever since the successful Trans-Mars Injection on December 1, MOM navigators were spending days ranging and measuring the spacecraft's velocity and precisely determined its flight path to come up with the required correction in the path, ISRO said in its official Facebook page.

"Based on this, the firing duration and delta-v has been calculated which will correct the deviations before they have a chance to grow large. During the Trajectory Correction Manoeuvre, accelerometers on board MOM gives the information when the desired delta-v is achieved," it said.

Earlier, the spacecraft was rotated from its nominal orientation to the orientation required for the first TCM.

Today's correction was carried out by the computer on board the spacecraft, since the amount of time required for the signal to go and return was about 20 seconds, as MOM was already travelling about some 2.9 million km away, ISRO said.

"MOM team is gaining hands-on experience in handling the communication delay as it keeps increasing gradually," it said.

Four TCMs are planned to fine tune the trajectory of the spacecraft so as to keep it in the precise intended track.

ISRO had earlier said MOM was not taking the shortest route to the Red Planet, since accelerating and later decelerating to match the planet's speed would require an extremely large amount of fuel in that option.

The propulsion system of MOM, which is to travel a total distance of about 680 million km, will be using monomethyl hydrazine as fuel and dinitrogen tetroxide as oxidizer during all the four TCMs.

The Mars Orbiter had earlier crossed a major milestone in the country's space history by venturing out of Earth's sphere of influence for the first time in an attempt to reach the red planet's orbit.

ISRO performed the trans-Mars injection, a "crucial event" intended for hurling its Mars Orbiter spacecraft into the planned orbit around the Sun in the early hours of December 1, marking the first step towards the 300 day voyage to reach the orbit of the red planet after crossing roughly 680 million kilometre.

The national space agency's PSLV C 25 successfully injected the 1,350-kg 'Mangalyaan' Orbiter (Mars craft) into the orbit around the earth some 44 minutes after the launch at 2.38 PM from the Satish Dhawan Space Centre at Sriharikota on November 5, marking the successful completion of the first stage of the Rs 450-crore mission.

ISRO successfully performs first Trajectory Correction Manoeuvre on Mars orbiter - The Economic Times
 

CrYsIs

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has been my position all along

much of the work in the mars project is being done by the forces of nature
we didnt land a rover as chinas on the moon - we used a pslv which was a dicey affair
we just piggy-backed on nature , while claiming the credit for ourselves

the main focus is on the gslv which has been either delayed or shall we say scheduled for 1st wk jan 2014
im not sure if this new dr radha head of isro is some kind of a PR man in having mars side-shows to keep the nation occupied
and gslv lift-off as a happy new year present
or is he trying to incresse the number of projects to bring more national interest in isro
- and that would be a noble objective

should we really be having these side-shows to try to impress the world,
rather than concentrate on our main objective(s) ?

dr radha can have whatever side-shows he likes but,
we wont be distracted - gslv is the main project -pls get it right !
- and if he does, then he can have all the side-shows he wants !

See it's not easy to goto mars.Orbital mechanics is quite complicated.The path India chose to reach mars is a tricky one which requires precise mathematical calculations.The most difficult one being mars orbital insertion which will happen in September. Remember no other organization other than NASA,Former Soviet union and EU has achieved this feat.If India is able to do so it will be a matter of immense pride.

This mission according to me serves two purpose:-

1) mastering deep space technologies

2) PR stunt to impress talented youngsters to join ISRO.


Now back to GSLV. Actually this delay is quite worrisome. India is loosing billions of dollars worth contracts because of this.

As i said before in this forum that even the GSLV is no magic pill for India as even this one is also a light vehicle with payload capacity only twice more than the PSLV.

The real game changer would be the GSLV MK3 which will be not be active until 2017.
 

roma

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See it's not easy to goto mars.Orbital mechanics is quite complicated.The path India chose to reach mars is a tricky one which requires precise mathematical calculations.The most difficult one being mars orbital insertion which will happen in September. Remember no other organization other than NASA,Former Soviet union and EU has achieved this feat.If India is able to do so it will be a matter of immense pride.

This mission according to me serves two purpose:-

1) mastering deep space technologies

2) PR stunt to impress talented youngsters to join ISRO.


Now back to GSLV. Actually this delay is quite worrisome. India is loosing billions of dollars worth contracts because of this.

As i said before in this forum that even the GSLV is no magic pill for India as even this one is also a light vehicle with payload capacity only twice more than the PSLV.

The real game changer would be the GSLV MK3 which will be not be active until 2017.
perhaps you may have more info than me

i was hoping these experts in isro would in that case go all out for the gslv mk3 version
and if possible reduce the time line towards achieving success in that !
as you rightly said , we are losing missions by not being able to participate ion that market

nevertheless i appreciate what you said about the difficulties of a mars mission´~
and so i give credit to isro for that too .
 

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