GSLV D3 Launch Failure

disha · Post by **disha** » 15 Apr 2010 12:42

GSLV D3 Countdown is a major event. India is flying its Cryogenic upper stage for the first time and this "manthan" has almost been 2 decades in making since initiated. This is a major event hence it deserves its own attention. Though it is upto mods to see it fit.

To start of on GSLV D3

ISRO GSLV D3 Page

GSLV D3 and GSAT 4 PDF

Note the GSAT 4 has four ion thrusters, 2 Indian and 2 Russian. It is in itself a major milestone.

And some images:

1. Note the vented interstage between the first and the second stage: http://isro.org/gslv-d3/Imagegallery/la ... cle.aspx#0
2. Staking of the cryogenic stage: http://isro.org/gslv-d3/Imagegallery/la ... cle.aspx#4
3. GSAT 4 with the payload fairing:http://isro.org/gslv-d3/Imagegallery/satellite.aspx#2

disha · Post by **disha** » 15 Apr 2010 12:47

A gung-ho article on GSLV D3 from Al-Jazeera

From the above:

"For the first time we are testing the cryogenic engine and stage in the flight. It has to perform well. Only when we achieve it then I can say, India has done it, the sixth country in the world to have this complex cryogenic engine technology," Dr K Radhakrishnan, chairman, Indian Space Research Organisation (ISRO), said prior to the launch.

disha · Post by **disha** » 15 Apr 2010 13:01

Reuters 1 min. news reel on GSLV D3 launch

Note the error made in the above news reel.

Meanwhile GSLV D3 coverage by Xinhua

http://news.xinhuanet.com/english2010/s ... 222777.htm

According to the above CDDM, Israel is a past master in cryogenic technology!

juvva · Post by **juvva** » 15 Apr 2010 13:06

Any one knows what is the launch window? Just in case launch is delayed....we never had a post sunset ISRO launch.

disha · Post by **disha** » 15 Apr 2010 13:13

juvva wrote:Any one knows what is the launch window? Just in case launch is delayed....we never had a post sunset ISRO launch.

It depends. For GSLV Mk I, the liquid strap-ons are fired some 4.6 seconds before launch, their thrust checked by computer and then the solid motor is ignited. If there is a shortfall, the launch is aborted. For the first launch it took ISRO 2-3 days (do not recollect) where it swapped the strap-ons and relaunched. So the launch window is "strechable" based on the ground conditions and weather permitting. I do not think ISRO will take chances with GSLV vis-a-vis weather (while they launched PSLV in rainy conditions)

juvva · Post by **juvva** » 15 Apr 2010 13:24

disha wrote:
juvva wrote:Any one knows what is the launch window? Just in case launch is delayed....we never had a post sunset ISRO launch.
It depends. For GSLV Mk I, the liquid strap-ons are fired some 4.6 seconds before launch, their thrust checked by computer and then the solid motor is ignited. If there is a shortfall, the launch is aborted. For the first launch it took ISRO 2-3 days (do not recollect) where it swapped the strap-ons and relaunched. So the launch window is "strechable" based on the ground conditions and weather permitting. I do not think ISRO will take chances with GSLV vis-a-vis weather (while they launched PSLV in rainy conditions)

Would be interesting to know , if they will go ahead and launch in the dark @ night time ,,,in case of a few hours delay/hold...

PratikDas · Post by **PratikDas** » 15 Apr 2010 13:55

disha wrote:
juvva wrote:Any one knows what is the launch window? Just in case launch is delayed....we never had a post sunset ISRO launch.
It depends. For GSLV Mk I, the liquid strap-ons are fired some 4.6 seconds before launch, their thrust checked by computer and then the solid motor is ignited. If there is a shortfall, the launch is aborted. For the first launch it took ISRO 2-3 days (do not recollect) where it swapped the strap-ons and relaunched. So the launch window is "strechable" based on the ground conditions and weather permitting. I do not think ISRO will take chances with GSLV vis-a-vis weather (while they launched PSLV in rainy conditions)

Interesting info! Thanks.

KrishG · Post by **KrishG** » 15 Apr 2010 14:12

disha wrote: It depends. For GSLV Mk I, the liquid strap-ons are fired some 4.6 seconds before launch, their thrust checked by computer and then the solid motor is ignited. If there is a shortfall, the launch is aborted. For the first launch it took ISRO 2-3 days (do not recollect) where it swapped the strap-ons and relaunched. So the launch window is "strechable" based on the ground conditions and weather permitting. I do not think ISRO will take chances with GSLV vis-a-vis weather (while they launched PSLV in rainy conditions)

Shiv's video of 1st GSLV launch. Note how the LSBs are fired at T-4.6 sec and the first stage at T.

[youtube]Z7P0GYJWDBs&feature=related[/youtube]

nrshah · Post by **nrshah** » 15 Apr 2010 14:17

Go thru the home page of Times of India... Bloody bugger does not have any thing on GSLV but speaks of IPL,Sania, Bollywood and what not...

Sorry for offensive language but could not control...

Suppiah · Post by **Suppiah** » 15 Apr 2010 14:27

nrshah wrote:Go thru the home page of Times of India... Bloody bugger does not have any thing on GSLV but speaks of IPL,Sania, Bollywood and what not...

Sorry for offensive language but could not control...

What do you expect from a third rate toilet paper tabloid? The only one that covers technology / space decently is unfortunately Beijing puppet Stalinist yellow daily...India badly needs quality daily...

Rahul M · Post by **Rahul M** » 15 Apr 2010 14:44

having followed ISRO's long journey towards desi cryogenics tech, through the blow of sanctions, the mid 90's spy scandal and thereafter trickle down snippets of a success here and a partial success there, I hope that this personal wait, along with that of many other Indians ends today. I wish the GSLV team all success.

SSridhar · Post by **SSridhar** » 15 Apr 2010 15:28

The Live Relay of the launch is on DD National starting from 16:00 Hrs IST

manoba · Post by **manoba** » 15 Apr 2010 15:42

Is there any online coverage of the event? DD, NDTV 24x7, NDTV India, etc?

Right now combing the internet. Not sure which one to select. Some links please.

Rahul M · Post by **Rahul M** » 15 Apr 2010 15:47

try the links at idesiTV.com

manoba · Post by **manoba** » 15 Apr 2010 15:53

Thanks. Some links:

DD - http://www.ddinews.gov.in/DDNews/rplayer.htm
NDTV 24x7 or India - http://www.ndtv.com/news/videos/video_l ... x7&live=tv

Not sure whether they are live or not.

Viv S · Post by **Viv S** » 15 Apr 2010 15:53

15 minutes to launch. Fingers crossed.

kvraghavaiah · Post by **kvraghavaiah** » 15 Apr 2010 16:03

I do not have access to live telecasts. plese some one keep posting status after the rocket lifts off.

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:05

NDTV showing the lunch live. Three minutes to go

Shankar · Post by **Shankar** » 15 Apr 2010 16:06

all fingers crossed

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:07

One Minute to go. Everything is fine

Viv S · Post by **Viv S** » 15 Apr 2010 16:08

One min left.

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:09

Liftoff Successfull.

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:09

Excellent Takeoff. Everything Normal

PratikDas · Post by **PratikDas** » 15 Apr 2010 16:10

marimuthu wrote:Liftoff Successfull.

Oh wow - thank you! I'm at work and can't watch. God speed!

Mahendra · Post by **Mahendra** » 15 Apr 2010 16:10

http://www.ndtv.com/news/videos/video_l ... x7&live=tv

kvraghavaiah · Post by **kvraghavaiah** » 15 Apr 2010 16:11

this launch has been taken extreme care and checking in view of many first time technologies to be demonstrated.

Viv S · Post by **Viv S** » 15 Apr 2010 16:12

First stage separated successfully.

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:12

L40 Shutoff, First Stage Separated and Second Stage Ignition

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:13

Heat Shield Separated

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:14

Cyro Stage Started.

Viv S · Post by **Viv S** » 15 Apr 2010 16:14

Second stage separation successful. Cryogenic ignition successful.

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:15

Cyro stage is not working properly. Something is wrong

JTull · Post by **JTull** » 15 Apr 2010 16:15

Something is amiss in cryo stage

Viv S · Post by **Viv S** » 15 Apr 2010 16:16

Awfully tense.

Rahul M · Post by **Rahul M** » 15 Apr 2010 16:16

problem in cryo stage.

Viv S · Post by **Viv S** » 15 Apr 2010 16:16

Bloody hell something's amiss.

marimuthu · Post by **marimuthu** » 15 Apr 2010 16:17

Both the lines have deviated. It seems the cryo stage is not performing well.

Mahendra · Post by **Mahendra** » 15 Apr 2010 16:19

There is still hope

Viv S · Post by **Viv S** » 15 Apr 2010 16:21

The lines seem to be coming closer again. Maybe a recovery is on way.

kvraghavaiah · Post by **kvraghavaiah** » 15 Apr 2010 16:22

what is happening now.
Did they test the engine for the conditions in space and under accelaration.