Advertisement


Advertisement

Thread Rating:
  • 40 Vote(s) - 2.5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Help Launch of GSLV-F06 / GSAT-5P scheduled on December 20, 2010
#1
Advertisement
GSLV-F06 on the Launch Pad

[Image: gsat5p-1_img.gif]
GSAT-5P Satellite undergoing prelaunch checks

Courtesy: ISRO.ORG
Today is the tomorrow you worried about yesterday.. for tomorrow never comes.. live today!!!
Reply
Thanks given by:
Advertisement
#2

GSLV rocket all set for launch

Dec. 18: The countdown has commenced for the launch of GSat-5 Prime, the country’s heaviest communications satellite designed to increase a variety of communication and related services, from the Satish Dhawan Space Centre, Sriharikota Range, on Monday.

GSat-5 Prime, which will enhance communication services as well as the footprint of television broadcasting, tele-medicine and long-distance education, will be hoisted into space by the Geo-Synchronous Satellite Launch Vehicle (GSLV-F06), on December 20. It will be the fifth satellite to be launched in the GSat series and augment the services provided by the Indian National Satellite (INSat) system. It will be functional for 14 years, according to sources in Indian Space Research Organisation (Isro).

The GSLV rocket is 51-metre tall, weighs 418 tonnes and costs around `175 crore. The satellite, with a payload of 2,310 kg, has a price tag of `125 crore.

Isro successfully conducted the launch rehearsal on Friday without the rocket’s second and third stage engines being filled with liquid and cryogenic fuel respectively. Isro officials said the process of filling the liquid and cryogenic fuel will begin during the countdown and end 30 minutes before the actual flight.

The onboard gases will be filled to the required pressure and the rocket's electronics will also be checked, they said.

The GSAT-5P satellite, with a mission life of about 14 years, has 36 transponders, an automatic receiver and transmitter of communication and broadcast signals. Successful launch of the satellite will take the agency’s transponder capacity to around 235 from 200 in orbit now.

The Russian cryogenic engine would power the GSLV during the flight on Monday. It would be more powerful than those used in previous GSLV missions. It would be the sixth GSLV flight powered by Russian cryogenic engines.

http://www.deccanchronicle.com/hyderabad...launch-976


___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
#3
Launch of India's latest communication satellite GSAT-5P on board GSLV-F06 rocket tomorrow from Sriharikota, put off..
Launch postponed due to minor leak in one of the valves of the cryogenic engine: ISRO sources.
(hot news from PTI)
___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
#4
Here goes full news:
+

Leak stalls GSLV launch


The launch of the GSLV F06 with GSAT -5prime satellite on board, scheduled to take place on Monday (Dec.20) at 4 pm from Sriharikota has been postponed due to a minor leak in one of the valves of the Russian cryogenic stage. This leak was noticed during the pre-count down checks. The ISRO’s Launch Authorisation Board that met on Sunday at Sriharikota, therefore did not give the permission to go ahead with the 29 hr countdown which was to begin at 11am on Sunday.

The date for the new launch will be announced after ISRO’s rocket technologists find the cause for the leak and take remedial action

http://www.thehindu.com/news/article963362.ece
___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
#5

Indian, Russian scientists discuss rocket launch delay

Indian and Russian space scientists are discussing the remedial measures that need to be taken after a leak was detected in the cryogenic engine of a rocket that was to place an advanced communications satellite into orbit on Monday. The Indian Space Research Organisation (ISRO) on Sunday decided to postpone the rocket's launch after it detected the leak in one of the valves of the Russian-made cryogenic engine during the pre-countdown mandatory tests even as the 51-metre tall rocket was on the launch pad.

The rocket, called the geosynchronous satellite launch vehicle (GSLV) was to carry GSAT-5P, an advanced communications satellite meant to retire an earlier one sent up in 1999 and ensure continuity of telecom, TV and weather services.

S Satish, a director at ISRO, said: "There is a small team of Russian experts at the rocket port whenever a rocket is flown with their cryogenic engine."

He said the Russians had supplied seven cryogenic engines, of which five were used in the earlier GSLV rockets.

The 29-hour countdown, planned to commence at 11.01 a.m. Sunday, was not authorised by the Launch Authorisation Board. The board met Sunday forenoon at the Sriharikota rocket launch centre to review the results of pre-countdown checks and decided against proceeding with the mission.

According to ISRO officials, the GSLV rocket has three stages. The first stage is fired by solid fuel and hugged by four strap-on motors fired by liquid fuel. The strap-on motors give additional thrust during the lift off and the initial phase of the rocket's flight.

The second stage/engine is fired by liquid fuel and the third and complex stage is the cryogenic engine powered by liquid hydrogen as fuel and liquid oxygen as oxidizer.

The solid fuel is cast ready while the liquid fuel is filled hours before the rocket's blast-off.

Sources close to ISRO told IANS that there are standard leak rates for valves. Only when this exceeds the minimum level are alarm bells sounded.

ISRO officials said that since the cryogenic engine is supplied by Russia, their expertise and consent will be obtained on how to plug the leak. If at all the valve has to be replaced, then it has to be supplied by the Russians, the sources said.

"The components of Indian cryogenic engine are of varied specifications and will not fit the Russian made one. The Russians had supplied the seven cryogenic engines long ago," the source told IANS.

According to officials, dismantling of the cryogenic engine with the faulty valve and fitting the rocket with another one will take time.

"The new engine's systems have to be checked and it will take over a month to make it flight ready," a source said. According to ISRO officials, a delay in the GSAT-5P launch will not affect any of its customers as the earlier satellite INSAT-2E is still operational.

http://www.hindustantimes.com/Indian-Rus...40877.aspx
___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
#6

GSLV-F06 launch on Saturday

The Geo-synchronous Satellite Launch Vehicle (GSLV – F06) is getting ready to lift off from Sriharikota at 4:01 p.m. on Saturday, December 25. It was originally scheduled to be launched on December 20 but a leak of helium gas from a valve in the upper Russian cryogenic stage on December 18 led to the postponement.

http://www.thehindu.com/news/national/article970694.ece
___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
#7

ISRO gears up for Dec 25 GSAT launch

Chennai, Dec 23 (IANS) Indian space scientists are gearing up for the Dec 25 launch of the advanced communications satellite GSAT-5P. The new entrant will retire INSAT-2E sent up in 1999 and will ensure continuity of telecom, television and weather services.

'The countdown will begin Friday 11.04 a.m. and the rocket will be launched at 4.04 p.m. Saturday,' S. Satish, director at Indian Space Research Organisation (ISRO), told IANS.

The 51-metre tall geosynchronous satellite launch vehicle (GSLV) carrying the 2,310 kg GSAT-5P satellite will blast off from the second launch pad at the Satish Dhawan Space Centre in Sriharikota in Andhra Pradesh, around 80km from Chennai.

Satish said pre-launch activities are being carried out at the rocket port and everything is proceeding at a smooth pace.

The rocket launch, originally scheduled for Monday, was aborted by ISRO Sunday when it detected a leak in one of the valves of the Russian-made cryogenic engine.
Subsequently ISRO and the Russian scientists held detailed tests to check the stability of the faulty valve.

The space agency decided Wednesday to go ahead with the launch as the test results were satisfactory. According to ISRO officials the weather in Sriharikota is clear and they do not expect any change in plans.

http://www.sify.com/news/isro-gears-up-f...iifaj.html

___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
#8
Countdown starts for GSAT-5P launch

[Image: in24gslv314928f.jpg]

The fully integrated, three-stage GSLV-F06 at Sriharikota.

The count down has started for the launch of India’s latest communication satellite GSAT-5P on board GSLV-F06 launch vehicle from Sriharikota on Saturday.

ISRO spokesperson S Satish told PTI that the 30-hour count down started at 10.04 hours this morning and was progressing well.

The launch of the satellite, which was originally scheduled for December 20, had been postponed after a leak in the Russian cryogenic engine on board the launch vehicle.

GSAT-5P with 24 C-band transponders and 12 extended C-band transponders is meant for augmenting communication services currently provided by Indian National Satellite System (INSAT). It is meant to boost TV, telemedicine and tele-education, and telephone services.

The satellite, developed by ISRO Satellite Centre, Bangalore, is the fifth in the GSAT series. It has a designed mission life of 12 years.

http://www.thehindu.com/sci-tech/science...974181.ece
___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
#9
Failed Sad
Reply
Thanks given by:
#10
Christmas turns sour for ISRO, GSLV mission fails

CHENNAI: Christmas day turned sour for the Indian Space Research Organisation (ISRO) and the nation at large as the launch of India's latest communication satellite GSAT-5P onboard the homegrown Geosynchronous Satellite Launch Vehicle (GSLV-F06) failed when the rocket developed a snag soon after lift-off. The rocket, powered by a Russian cryogenic engine, was launched from Satish Dhawan Space Centre at Sriharikota, 100 km from Chennai.

This is the second consecutive failure of GSLV, the earlier one being on April 15, 2010.

On Saturday, a little more than two minutes after lifting off, the rocket deviated from its path and exploded mid-air. The monitors showed the rocket plunging, apparently into the Bay of Bengal. While the last launch's problem was with the cryogenic engine, this time trouble happened soon after the first stage and much before the cryogenic engine was to be fired. Scientists are yet to give an official explanation for the failure.

After the last GSLV (D3), which used the first indigenous cryogenic engine, failed on April 15, 2010, ISRO had decided to use a pre-purchased Russian cryogenic engine for Saturday's launch. GSLV-F06 was to be launched last Monday, but it had to be postponed after engineers detected a leak in the cryogenic engine which could have proved disastrous. On Saturday, the vehicle blasted off from the Sriharikota spaceport at 4.04pm. It was to inject the 2,300-kg satellite 19 minutes later. The satellite was to be used to boost television broadcast, telemedicine and tele-education. But soon after the first stage separation at 148 seconds, the mission failed.

ISRO has had a troubled past with GSLV, with only two of the seven launches so far claiming total success. Though ISRO claims that four launches had been successful, independent observers call at least two of them either failure or partial success. When it comes to launching its workhorse PSLV, ISRO has had 15 consecutive successes.

http://timesofindia.indiatimes.com/india...z197jAxfSr
___________________________________________
Airtel Digital HD Recorder / Kerala Vision Digital TV
Reply
Thanks given by:
Advertisement




Possibly Related Threads...
Thread Author Replies Views Last Post
  Satellite Updates: ISRO to Launch Nearly 30 Satellites in March on New PSLV Rocket nairrk 0 411 02-28-2019, 06:53 PM
Last Post: nairrk
  Satellite Updates: ISRO set to launch Kalamsat and DRDO's Microsat R satellite today nairrk 0 533 01-24-2019, 10:30 AM
Last Post: nairrk
  Satellite Updates: India's Heaviest Satellite GSAT-11 Launched Successfully.. nairrk 0 447 12-05-2018, 08:45 AM
Last Post: nairrk
  Satellite Updates: ISRO to launch GSAT-29 communication satellite onboard GSLV MkIII-D2 mission.. nairrk 0 423 11-13-2018, 11:40 AM
Last Post: nairrk
  General News: Arianespace to launch three more heavy Indian satellites (GSAT-11, GSAT-30 & GSAT-31) Sathish 2 669 08-13-2018, 03:31 PM
Last Post: Sathish
  Satellite Updates: SES-12 launch expected to boost channel carrying capacity of Indian DTH ops nairrk 0 502 07-02-2018, 06:51 PM
Last Post: nairrk
  Satellite Updates: ISRO Chief reports all tests on GSAT-11 to be over by May 17 nairrk 0 589 05-14-2018, 12:45 PM
Last Post: nairrk
  Satellite Updates: ISRO's GSAT-11 sent back from space Centre ahead of may end launch nairrk 0 666 04-24-2018, 10:53 AM
Last Post: nairrk
  General News: ISRO to launch navigation satellite on April 12 nairrk 2 765 04-16-2018, 11:46 AM
Last Post: nairrk
  Update: India to launch communication satellite GSAT-6A on March 29 nairrk 2 801 04-01-2018, 02:33 PM
Last Post: nairrk

Forum Jump:


Users browsing this thread: 1 Guest(s)
Advertisement