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India recalls communications satellite, postponing launch indefinitely

India’s space agency ISRO yesterday recalled its largest ever communications satellite, GSAT-11, from French Guiana, where it was being prepared for a May Ariane 5 launch, citing a need to check the satellite’s systems.

Though no specific reason was given for the recall, which will postpone the satellite’s launch indefinitely, it likely is related to the March failure in orbit of India’s GSAT-6A satellite.

ISRO lost communication contact with its GSAT-6A communication satellite soon after it was put into orbit on March 29.

ISRO suspects the failure of the power systems in the satellite for the loss of communication link. “The satellites are powered by solar panels that charge the onboard batteries. The batteries are fully charged when the satellite is loaded on to the rocket. Even if there is a problem with the solar panel, then the battery power should have kicked in. Here the entire power system of the satellite seems to have failed,” one space expert told IANS earlier.

According to experts, the power system could have failed due to some short circuiting or arcing resulting in what is known in the space terminology ‘loss of lock’ or loss of contact with the ground station.

The head of ISRO is a well-trained engineer who has worked in the trenches. I suspect he decided the problems with GSAT-6A demanded a more detailed systems check on GSAT-11 prior to launch. And even if it wasn’t his specific decision, the willingness to make such a decision I think indicates a great deal of maturity in the present culture at ISRO. It might be embarrassing to make such a recall, but it is far better to do so beforehand than after an unrecoverable failure in space. That they are willing to face this embarrassment to avoid a future failure is something laudable.

Pioneer cover

From the press release: From the moment he is handed a possibility of making the first alien contact, Saunders Maxwell decides he will do it, even if doing so takes him through hell and back.

 
Unfortunately, that is exactly where that journey takes him.

The vision that Zimmerman paints of vibrant human colonies on the Moon, Mars, the asteroids, and beyond, indomitably fighting the harsh lifeless environment of space to build new societies, captures perfectly the emerging space race we see today.

He also captures in Pioneer the heart of the human spirit, willing to push forward no matter the odds, no matter the cost. It is that spirit that will make the exploration of the heavens possible, forever, into the never-ending future.

Available everywhere for $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from the ebook publisher, ebookit. And if you buy it from ebookit you don't support the big tech companies and I get a bigger cut much sooner.

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