Tag Archives: GSLV

More Stuff Going Up and Down: GSLV with Insat 3DR, and Soyuz TMA-20M lands

This was a busy week for spaceflight.  In addition to the ongoing SpaceX investigation and the OSIRIS-REx launch, there was also a launch from India and a landing in Kazakhastan.

First off, the successful return of Aleksey Ovchinin, Oleg Skripochka, and Jeffrey Williams aboard Soyuz TMA-20M earlier this week:

You may remember them as the crew that had this awesome mission patch:
Soyuz-TMA-20M-Mission-Patch

And then from Sriharikota, India’s Satish Dhawan Space Centre, an all-domestic GSLV rocket blasted off, delivering the Insat 3DR weather satellite to geosynchronous transfer orbit.  The GSLV has had a difficult path, as various components are replaced or added or removed or changed and with an unfortunately high rate of failures.  So this launch was particularly important for ISRO, which seeks to become a viable international competitor in the commercial launch market.  Their rockets are cheaper even than Falcon 9, and GSLV’s increased performance over the highly reliable PSLV is critical in order to capture valuable geosynchronous business.  (GSLV actually stands for Geosynchronous Satellite Launch Vehicle.)  What’s more, ISRO will be depending on GLSV to place their next Chandrayaan moon probe into lunar transfer orbit — and that one will be their most ambitious deep space probe yet, featuring orbiter, lander, and rover in one mission.  But until then, check out the Insat 3DR launch.  Notice one unique feature: the core stage is solid, while the strap-ons are hypergolic, so the plume is inverted from what you’d expect on an Atlas or Long March launch.  It’s an intriguing hybrid of a rocket — solid core, hypergolic strap-on boosters, and a cryogenic upper stage.  And perhaps it is finally coming into its own.

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Lotsa launches in Asia: Long March, GSLV, and Proton return to flight

It was a surprisingly busy week in spaceflight, with three launches from Asia.  The first was a surprise launch of a Long March 4C from Taiyuan Launch Center in northern China on Thursday, placing a surveillance satellite into orbit.  China ordinarily does not announce military launches.  The payload is designated Yaogan 27.

Later that day, a GSLV Mark 2 rocket blasted off from Satish Dhawan Space Centre at Sriharikota, India.  This was the third all-domestic flight, with an Indian-built cryogenic upper stage, and the second succesful one.  The payload was an Indian geosynchronous commsat, GSAT 6, and telemetry indicates it has deployed its solar arrays and is active.  GSLV has had a difficult break-in period, but with back-to-back successes, ISRO is ready to declare the Mark 2 operational.

And then Proton rounded out the week from Baikonur Cosmodrome in Kazakhstan, making a triumphant return to flight after the May 16 accident that destroyed a Mexican commsat.  This flight was completely successful, delivering the Boeing-built Inmarsat 5 F3 spacecraft to geosynchronous transfer orbit for Inmarsat of London.  This will be the latest element in Inmarsat’s Global Xpress Ka-band mobile communications network.

Next rocket on deck is Monday’s Atlas V launch for the US Navy, and then after that is Wednesday’s scheduled manned Soyuz launch from Baikonur Cosmodrome to begin the forty-fourth Soyuz flight to the International Space station.

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