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ISRO head: Recall of India satellite prevented a failure

K. Sivan, the chairman of ISRO, India’s space agency, revealed today that the decision to recall GSAT-11 in April just as it arrived in French Guiana for a May Ariane 5 launch prevented a major failure.

They had decided to recall it because two previous satellites had failed, using almost identical equipment. As he notes,

GSAT-11 had the same set of power system configuration that two older satellites had. RISAT-1 died prematurely and GSAT-6A lost communication contact soon after launch on March 29 because of suspected power system failure, harnesses etc… We had just sent GSAT-11 [to Guiana] and no one was sure if the same issue was there in GSAT-11,” he said.

Checks found that the provision or “margin” for the deployment of the solar panel was much smaller than was required. “Had it gone in that configuration, the panel [which generates power for the 15-year life] would not have deployed in space. The satellite would have been a failure.”

Because the recall cost money and delayed the launch significantly, it required the ability to look at the engineering honestly and not let politics interfere. Sivan and his managers did that, which speaks well for future space engineering from ISRO.

Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

One comment

  • Col Beausabre

    Ya know, when I book passage to space, that sort of careful management means I may fly on an Indian craft (You’d have to hold a gun to my head to fly Russian. As for the Chinese, their government will hold a gun to your head)

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