Tag: ISRO

India inks space deal with China

10:06 am

The competition heats up: India has signed a cooperative agreement with China to work together on several space projects.

Asked about the areas of focus, [Isro chairman K Radhakrishnan] said: “Right now, broadly speaking, it will be natural disasters and remote sensing, which are natural choices. But by March-April 2015, the joint working team would have prepared a roadmap, chalking out various options and opportunities for concentrated efforts in space exploration.”

This article is among a lot of articles from India this week about space and the upcoming orbital insertion of their Mars Orbiter Mangalyaan. As I’ve said repeatedly, this emerging prosperous and capitalist nation is space happy!

Also, when you click on the link make sure you scroll down to read the secondary sidebar piece at the bottom titled “After Mars, Kathakali beckons Isro chief.” There they describe the other culture interests of the head of India’s space agency, and how he plans to spend his time after he steps down in December. It will give you a flavor of India’s culture and how it differs from ours, even as it strives to emulate us.

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The head of India’s research team at its Antarctica base has been recalled after he ordered the shut down of power at the station.

9:01 am

Welcome to the movies: The head of India’s research team at its Antarctica base has been recalled after he ordered the shut down of power at the station.

From October 7 to 12, ISRO’s satellite ground station at Antarctica, lost all transmission when its power supply was allegedly shut down by the team leader of the 32nd winter expedition to Bharati. The scientist, whose name was not revealed, has since been suspended and brought back to Goa. On October 14, NCAOR had also filed a police complaint against the scientist for the ‘wanton act of shutting down power’, said a statement released by the Ministry of Earth Sciences on Saturday.

This story had this tidbit:

It is believed the probe was ordered after the team leader allegedly ordered for the station’s power supply, which is obtained from diesel generators, to be cut off. A former chairman of ISRO, on the condition of anonymity, said: “If shortage of fuel was the issue, why would the ISRO station not take stock of fuel two months before it was to get exhausted and make arrangements for additional supply from South Africa? It is the most obvious thing to do. Unless there is some confusion or some issues, such a thing in Antarctica is unheard of. If power is switched off, people inside will freeze. So why was the power ordered to be cut off and why wait for diesel to get over?”

It also appears that three people are involved in this story, though details remain scant.

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In preparation for November 5 launch of India’s first mission to Mars, ISRO successfully performed a full dress rehearsal countdown yesterday

8:59 am

In preparation for November 5 launch of India’s first mission to Mars, ISRO successfully performed a full dress rehearsal countdown yesterday.

We all cross our fingers and wish India well on this mission.

The article also had this additional tidbit that reveals a great deal about world culture:
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A fundamental design failure appears to be the cause of the fuel leak that caused the launch postponement of India’s first home-made geosynchronous powered rocket in August.

8:57 am

The complete failure of the fuel tank appears to be the cause of the massive leak that caused the launch postponement of India’s first home-made geosynchronous powered rocket in August.

Mr. Radhakrishnan [head of India’s space agency] said while the expert committee had attributed the fuel leak to stress corrosion cracking of the tank filled with propellants, exactly why this happened was “a research problem” that remains to be investigated. The next GSLV mission will switch to a better aluminium alloy material for its propellant tanks.

Up to now the reports have been somewhat vague about the cause of what was clearly an extensive leak. This story tells us that the tank essentially failed. As they filled it with propellants, cracks apparently showed up everywhere, with fuel spewing out in all directions. As far as I can remember, I don’t think there has ever been a rocket tank failure quite this spectacular.

This suggests there were fundamental design flaws in the tank or very serious quality control problems in its manufacture. With the next launch attempt scheduled for December 15, I hope India has identified the source of this incredibly basic problem and taken action to prevent it from happening again.

Update: Reader Patrick Ritchie found this older article which suggests the failed tank was an old tank of a design that was “prone for delayed cracks”. The error here then was in using this substandard old equipment rather than a newer tank.

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India has now rescheduled the launch of its home-built GSLV rocket for December 15.

9:09 am

India has now rescheduled the launch of its home-built GSLV rocket for December 15.

The launch of Geosynchronous Satellite Launch Vehicle (GSLV), which was deferred on August 19 following a flaw in the rocket, will take place on December 15, ISRO head said here today. “The launch of GSLV D5 satellite which was postponed on August 19 about two hours before liftoff after detection of a fuel leak in the rockets’ second stage will now be held on December 15,” ISRO chairman Dr K Radhakrishnan said at an interactive session with students and teachers here.

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India space officials have decided to completely replace the second stage of the GSLV rocket that leaked during the rocket’s scrubbed launch last month.

8:36 am

India’s space agency has decided to completely replace the second stage of the GSLV rocket that leaked during the rocket’s scrubbed launch last month.

“Although the exact reasons for the leakage in the second stage of the engine, which prevented the launch on August 19, are being probed by the team headed by K Narayanan, it has been decided that a new liquid second stage (GS-2) will be assembled to replace the leaked stage,” said the official. He added that the process of assembling has begun, and that besides the GS-2, all the four liquid strap-on stages are being replaced with new ones.

That leak must have been quite significant for them to make this decision.

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Engineers in India have decided to completely replace the leaking second stage engine of the GSLV rocket whose launch was scrubbed last week.

9:00 am

Engineers in India have decided to completely replace the leaking second stage engine of the GSLV rocket whose launch was scrubbed last week.

The GSLV is a three-stage launch vehicle with four strap-on motors hugging the first stage. The first stage is powered by solid fuel while the four strap-on motors and the second stage are powered by liquid fuel. The third is the cryogenic engine powered by liquid hydrogen and liquid oxygen.

“At the rocket assembly building, the satellite, cryogenic engine and the second stage have been destacked. It has been decided to shift the second stage to Mahendragiri for detailed inspection and study,” the ISRO official told IANS. He said ISRO has also decided to start assembling another engine so that the GSLV could fly at the earliest. Queried about the time-frame for the GSLV’s flight, he said: “It is not possible to give a time-frame for the GSLV’s flight now.”

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