From Tip to Toe: Chandrayaan-2 Launch

Chandrayaan-2
The launch of Chandrayaan-2, India’s second lunar mission, scheduled for 2.51 am on 15 July, was postponed when scientists at the Indian Space Research Organization (ISRO) detected a technical snag in the launch vehicle system minutes before lift-off. “Revised launch date would be announced later,” the space agency tweeted at 2.37 am. ISRO now says Chandrayaan-2 is scheduled to launch from the SDSC in Sriharikota at 2.43 pm on 22 July.

Scientists of the Indian Space Research Organisation (ISRO) were reportedly reviewing the significance of the problem with the heavy lift rocket GSLV Mk-III rocket carrying the satellite that put an enigmatic halt to the ambitious Rs 976 crore lunar mission, albeit uncertainty over a future launch date prevailed all through. ISRO however was tightlipped as to what may have caused the hitch that occurred when liquid propellant was being loaded into the rocket’s indigenous cryogenic upper stage engine. Nevertheless, several space scientists were of the opinion that the space agency must be appreciated for calling off the launch of rather than hurrying into a major disaster.

Watched by President Ram Nath Kovind, the countdown to the launch of Chandrayaan-2 on board Geosynchronous Launch Vehicle GSLV-Mk-III, dubbed as ‘Baahubali’ which was scheduled for 2.51 am was stopped 56 minutes and 24 seconds before lift-off at 1.55 am following an announcement from the Mission Control Centre.

Confusion Galore

Confusion prevailed for several minutes before the ISRO came out with an official confirmation about the launch being cancelled.

“A technical snag was observed in the launch vehicle system at t-minus 56 minutes. As a measure of abundant precaution Chandrayaan 2 launch has been called off for today,” ISRO Associate Director (Public Relations) B R Guruprasad said. He did not specify the nature of the snag, while he admitted that
“a revised launch date will be announced later.”

“Launch is called off due to technical snag. It is not possible to make the launch within the (launch) window. (A new) launch schedule will be announced later,” another ISRO official muttered.

Scheduled in January But Shifted to July

India’s space agency had earlier scheduled the launch in the first week of January but shifted it to July 15.The lift-off of the three-component spacecraft weighing 3,850 kg and comprising an orbiter, the lander and the rover was scheduled from the Satish Dhawan Space Centre (SDSC) in Sriharikota, off the coast of Andhra Pradesh.

Intended to Explore Lunar South Pole

The satellite was supposed to explore the uncharted lunar South Pole, 11 years after ISRO’s successful first lunar mission– Chandrayaan-1, which made more than 3,400 orbits around the moon and was operational for 312 days till August 29, 2009. It would have taken 54 days to accomplish the task of landing on the Moon through meticulously planned orbital phases.

After an appropriate dress rehearsal last week, the countdown for the mission commenced at 6.51 am on Sunday and scientists had undertaken various stages of propellant filling to power the rocket ahead of the launch.

Complex And Prestigious Mission

Billed as the most complex and prestigious mission ever undertaken by the ISRO since its inception, Chandrayaan-2 would have made India the fourth country to soft land a rover on the lunar surface after Russia, the United States and China.

Exceptionally High Success Rate

“ISRO has an exceptional success rate when it comes to launching systems. Checking and diagnosing complex systems in a rocket till the last minute is an art by itself (Rocket Science) which they seem to have mastered? said Rajesh Kumble Nayak, head of the Centre for Excellence in Space Sciences India in Kolkata’s Indian Institute of Science Education and Research (IISER). “I am glad that people at ISRO decided to hold back rather than hurrying into a major disaster. I guess the mission will be held back for a few weeks, which is much better than a failure,” Nayak told PTI.

Are We Disappointed?

In spite of the odd launch hour programmed by the authorities, enthusiasts of all ages reached the site, some travelling long distances on two wheelers, to witness the proud moment. The men, women and children waiting at a special gallery, set up recently by ISRO, left the venue disappointed as the mission did not go as expected.

“We do not know what happened but we are disappointed. I hope they rectify whatever the issue is. We will come back again to witness the launch,” said a young boy, holding aloft the tri-color, who had come with his family.

Postscript

Regrettably enough, the blare generated around Chandrayaan-2 and its launching does not go hand-in-hand with the quietness of the moon. The earth’s satellite has a scant atmosphere, having no robust medium for sound waves to travel in. Consequently, the moon rover should be in a very quiet world, insulated from the publicity machinery back home, which it verily lacks.