By M.V.Ramakrishnan

Sunday, January 12, 2014

India Joins Exclusive And Elusive Cryogenix Club

Just a few weeks ago India had successfully sent an internationally well-equipped  space vehicle on its way to a Mars orbit  which is expected to be achieved in a few months' time.  And now comes the news that its long-term endeavour to develop a powerful entirely-made-in-India cryogenic spacecraft engine has also succeeded at last after overcoming several serious setbacks.  

Are you watching, Indira Gandhi?  (see Articulations Online, 1 Dec. 2013 :  Destination Mars : Bravo, ISRO!  Bravo, India!).


6 Jan. 2014

GSLV-D5 launch places India in elite league

 One of India’s most ambitious dreams became a reality on Sunday when its Geosynchronous Satellite Launch Vehicle (GSLV-D5), powered by an indigenous cryogenic engine, effortlessly put the 1,982-kg GSAT-14 communication satellite into a perfect orbit after 17 minutes of flight.

The cryogenic engine built by the Indian Space Research Organisation (ISRO) fired for 12 of those 17 minutes.

The precision of the cryogenic upper stage was such that it put the GSAT-14 into an orbit with a perigee of 179 km, against the target of 180 km, and the apogee achieved was off by a mere 50 km for a target of 36,000 km.

The grand success caps 20 years of hard work by ISRO’s engineers, after being denied cryogenic technology under pressure from the U.S., suffering a heartbreaking failure with an indigenous cryogenic engine flight in April 2010 and having had to scrub its second attempt with an indigenous cryogenic engine in August 2013. . . .

The mission’s success means India now has the ability to put satellites weighing more than two tonnes in orbit, joining the elite club of the U.S., Russia, France, Japan and China who have mastered this perilous technology of using cryogenic propellants -- liquid oxygen at minus 183 degrees Celsius and liquid hydrogen at minus 253 degrees’ Celsius.


7 Jan. 2014

Resilience pays off

The Indian Space Research Organisation is adding feather after feather to its cap. Just recently, it sent off the country’s first effort at planetary exploration, the Mars Orbiter Mission. On Sunday, the Geosynchronous Satellite Launch Vehicle (GSLV), equipped with an indigenous cryogenic engine, put the GSAT-14 communication satellite into orbit with effortless ease.

It was an unequivocal demonstration of the space agency’s mastery of cryogenic technology, a key element in building more powerful launch vehicles.  While its older sibling, the Polar Satellite Launch Vehicle (PSLV), can accommodate communication satellites weighing about 1,200 kg, the GSLV will be able to carry spacecraft that are heavier by around 1,000 kg. . .  .

No comments:

Post a Comment