Indian Space Programme Discussion

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PratikDas
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Re: Indian Space Programme Discussion

Post by PratikDas »

The actual curves don't seem to align with the expected curves. Is something wrong?
Victor
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Re: Indian Space Programme Discussion

Post by Victor »

^ Telemetry info is not perfect at the low altitudes so the lines may not align towards the end. With main chute open it's on its way home safely.
Vivek K
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Re: Indian Space Programme Discussion

Post by Vivek K »

Also failure or success is defined in terms of accomplishment or not of the goals.
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

congrats ISRO... awaiting final confirmation
Singha
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Re: Indian Space Programme Discussion

Post by Singha »

some duct tape and cheap gopro-hd camera on the payload stage looking down would generate the much needed psyops footage.

but it remains a gaping hole.
Shrinivasan
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

looks like Crew module touchdown has happened
dinesha
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Re: Indian Space Programme Discussion

Post by dinesha »

Crew Module touch down...
congratulations to all once again..
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

we dont need to try for cheap H&D... the success of the mission speaks for itself. Actually ISRO has multiple cameras capturing footage... it is just not available for Mango Abduls like us.
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

Chairman ISRO just made the announcement...
Shankk
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Re: Indian Space Programme Discussion

Post by Shankk »

Mission successful. YAY
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

Chairman Radhakrishnan has been a good luck charm for ISRO. Congrats ISRO... may many more successes come their way....
Victor
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Re: Indian Space Programme Discussion

Post by Victor »

Radhakrishnan giving praise to all the senior gurulog. Very Indic.
member_28108
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Re: Indian Space Programme Discussion

Post by member_28108 »

There will be no orbital insertion touch down confirmed
Shrinivasan
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

Chairman giving recognition to others and giving them prime time publicity is welcome!!
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Re: Indian Space Programme Discussion

Post by shaun »

mission successful congrats!
member_28108
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Re: Indian Space Programme Discussion

Post by member_28108 »

A go pro camera would be rattled to Smithereens by the vibration :) I am pretty sure they will have cameras etc but will not be releasing it to public. In fact in one of the GSLV launches they did mention they have cameras inside to record events.
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

Waiting for Video and Photos... mission director has promise that we will be seeing these soon.
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Re: Indian Space Programme Discussion

Post by Pratyush »

The perils becoming an uninformed keyboard commando. I thought that it was a satellite launch mission :((

When it was a more vital mission.

Am just happy that the mission was successful.
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Re: Indian Space Programme Discussion

Post by Shrinivasan »

the Crew Module is 3.7 Dann... it is an amazing sized payload.
shiv
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Re: Indian Space Programme Discussion

Post by shiv »

Shrinivasan wrote:the Crew Module is 3.7 Dann... it is an amazing sized payload.
:lol:
dinesha
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Re: Indian Space Programme Discussion

Post by dinesha »

Looks like ISRO had placed cameras to record the stage separation.. We may have a look in few days..
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Re: Indian Space Programme Discussion

Post by Dilbu »

Jai hind. Congrats ISRO.
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Re: Indian Space Programme Discussion

Post by Sid »

Well done India. Congratulations everyone.
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Re: Indian Space Programme Discussion

Post by RamaY »

Dilbu wrote:Jai hind. Congrats ISRO.
+108
Victor
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Re: Indian Space Programme Discussion

Post by Victor »

I don't think anyone shows the separation videos live from the vehicle. There will surely be things that we don't want to show everyone since this is a cutthroat business and we will see a properly edited version in time.
member_26535
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Re: Indian Space Programme Discussion

Post by member_26535 »

Congratulations team ISRO
PratikDas
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Re: Indian Space Programme Discussion

Post by PratikDas »

Congratulations, ISRO :)
Dilbu
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Re: Indian Space Programme Discussion

Post by Dilbu »

So we used a dummy stage instead of cryogenic stage which is still under development. Next stop is testing of cryogenic stage I suppose.
member_28911
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Re: Indian Space Programme Discussion

Post by member_28911 »

ISRO chairman said they'll be back in March for the launch of PSLV.
Wasn't GSLV MkII (D6) supposed to be launched in Jan 2015 ?
member_28108
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Re: Indian Space Programme Discussion

Post by member_28108 »

Yes a dummy stage. They are still validating that engine.
Varoon Shekhar
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Re: Indian Space Programme Discussion

Post by Varoon Shekhar »

Ankar wrote:ISRO chairman said they'll be back in March for the launch of PSLV.
Wasn't GSLV MkII (D6) supposed to be launched in Jan 2015 ?
You remembered it correctly Ankar! After the last IRNSS mission, ISRO said that another IRNSS will be launched by year end, or early January, followed by a GSLV, probably in March. Now, the next PSLV is being pushed back to March 2015, and that means the GSLV will take another month at least. I wish they wouldn't make these awfully inaccurate projections, which only disappoint, if not dismay, the public!

Anyway, hearty congratulations on the GLSV Mark 3/Care mission. At least, they were accurate on the date of this launch, as well as the GSAT-16.
Suraj
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Re: Indian Space Programme Discussion

Post by Suraj »

Is the LVM3's payload potential dictated primarily by the capability of the cryo stage ? The current parameters are a 200 kN CE-20 stage , and a payload potential of 5000 kgs to GTO. How are these numbers impacted by changes to the capability of the cryo stage ?
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Re: Indian Space Programme Discussion

Post by nirav »

Ati sundar launch. Congratulations ISRO ..Proud of you ! 8)

Id been ogling at the test vid of S200 boosters from quite some time ...



To see 2 of them powering up the GSLV MK III was awesome .. The tree top view got fudged unfortunately by the DD cameraman :oops: ..

A very happy Jingo I am today !
Last edited by Suraj on 18 Dec 2014 10:04, edited 1 time in total.
Reason: Edited URL
vina
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Re: Indian Space Programme Discussion

Post by vina »

Is the LVM3's payload potential dictated primarily by the capability of the cryo stage ?
No. That is what I have been saying. The bottleneck is the twin "WeakAss" engines in the L110 stage. Get rid of them and get in a LOX/Hydrocarbon stage and the payload to orbit nearly doubles!
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Re: Indian Space Programme Discussion

Post by member_27164 »

Congratulations ISRO! Congrats India!!
The mighty king has conquered his kingdom. I saw it live and it was spectacular launch.
Suraj
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Re: Indian Space Programme Discussion

Post by Suraj »

What kind of thrust numbers does a semi-cryo stage 2 generate compared to the L110 ? And does improvment to the cryo stage have no incremental benefit to the payload ?
wasu
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Re: Indian Space Programme Discussion

Post by wasu »

Got any pictures, aditya?
patel
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Re: Indian Space Programme Discussion

Post by patel »

Congrats ISRO, my fellow jingos.. congrats everyone!!

What was the velocity of the CARE module at touchdown? Would love to see the videos of stage separation and touchdown of the CARE module!!!
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Re: Indian Space Programme Discussion

Post by vina »

What kind of thrust numbers does a semi-cryo stage 2 generate compared to the L110 ? And does improvment to the cryo stage have no incremental benefit to the payload ?
It is not thrust alone, but the efficiency that matters. The semi cryo will have specific impulse of 330 to 360 s, while the best L110 can get to is 270s. That is a good 60s increase in specific impulse. Even if you replace the L110 with a semi cryo with the exact same thrust, the mass fraction (the final mass that gets taken to orbit) will see a dramatic improvement because of higher efficiency (all else being the same).

The only thing that can be done is to make the cryo stage fire longer and cut down the size of the L110. That is not optimal either, from a configuration and cost stand point.
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Re: Indian Space Programme Discussion

Post by A Nandy »

Congrats to ISRO !!

So there is video of the S200 separation !! Hope it will be released soon :)
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