Chandrayaan 2: India’s second moon mission — complete coverage

ISRO calls off Chandrayaan 2 launch due to technical glitch

An ISRO official announces in Sriharikota on July 15, 2019 that the Chandrayaan 2 mission launch was called off.

An ISRO official announces in Sriharikota on July 15, 2019 that the Chandrayaan 2 mission launch was called off.   | Photo Credit: The Hindu

“A technical snag was observed in launch vehicle system... As a measure of abundant precaution, Chandrayaan 2 launch has been called off for today. Revised launch date will be announced later,” tweets ISRO.

India’s ambitious second lunar mission, Chandrayaan 2, suffered a temporary setback in the early hours of Monday, with the launch of the rocket being aborted 56 minutes before the scheduled lift-off.

The mission was aimed at putting a rover on the moon’s South Pole, where no country has gone before.

The countdown was stopped at ‘T Minus 56 minutes’ after Indian Space Research Organisation (ISRO) scientists found a glitch in the launch vehicle system. ISRO had completed filling of liquid hydrogen in the cryogenic stage of the GSLV MK-III-M1, which is capable of carrying satellites of up to four tonnes, at 1.34 a.m. But 22 minutes later, the countdown clock stopped ticking at 56.24 minutes to launch.

Watch: India set for Chandrayaan 2 launch
 

“The launch is called off due to a snag. It is not possible to make the launch within the window. The launch schedule will be announced later,” a mission control official said on the public address system at the Satish Dhawan Space Centre.

The GSLV Mark III rocket, Chandryaan 2’s launch vehicle, at Second Launch Pad in Sriharikota. Photo: ISRO

The GSLV Mark III rocket, Chandryaan 2’s launch vehicle, at Second Launch Pad in Sriharikota. Photo: ISRO  

Kovind flies in

President Ram Nath Kovind had flown in by helicopter to witness the launch, after visiting Tirupati. Confusion prevailed in the media centre, as the announcement over the PA system was not heard indoors. With the clock stuck, ISRO officials at the auditorium scrambled to find out if the launch had been cancelled.

Follow our extensive coverage of Chandrayaan 2, India’s second Moon mission here

An official announcement came at 2.40 a.m., when ISRO’s PRO read out a short statement on the launch being called off.

“A technical snag was observed in the launch vehicle system at 1 hour before the launch. As a measure of abundant precaution, Chandrayaan-2 launch has been called off for today. Revised launch schedule will be announced later,” ISRO said in a tweet at 3.09 a.m.

The GSLV Mark III rocket, Chandryaan 2’s launch vehicle, at Second Launch Pad in Sriharikota. Photo: ISRO

The GSLV Mark III rocket, Chandryaan 2’s launch vehicle, at Second Launch Pad in Sriharikota. Photo: ISRO  

 

ISRO had a launch window between July 9 and 16. Officials are tight-lipped about the aborted mission. Postponing the launch would help ISRO identify and address the snag.

The mission is set to be a test bed for technologies required for deep-space ventures. The Chandrayaan-2 module, carrying indigenous rover ‘Pragyaan’ and lander ‘Vikram’, was set to have separated 16 minutes after take-off, and touch down on the moon 54 days after lift-off.

The launch of Chandrayaan-2 has had several setbacks with ISRO missing multiple deadlines since 2018. It was again planned to be launched in a window between January and mid-February last, but was put off yet again. When the launch window in July was fixed, ISRO Chairman K. Sivan had told The Hindu that it was final and would be met. But that fell apart as well in the early hours of Monday.

As ISRO scientists went into a huddle following the call-off, everyone gathered at the space centre started leaving.

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Printable version | Jun 7, 2020 12:08:07 AM | https://www.thehindu.com/sci-tech/science/isro-calls-off-chandrayaan-2-launch-due-to-technical-glitch/article28431674.ece

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