- August 23, 2023
Chandrayaan-3 all set for soft-landing on Moon today: Key points | India News – Times of India
Here are the key things to know about the moon landing:
Time of landing
Isro said the live telecast of the landing operations at MOX/ISTRAC begins at 5.20 pm on Wednesday, ahead of the scheduled touch-down of the lander with a rover in its belly near the south polar region around 6.04 pm.
‘Overall process may take 30 minutes’
Isro chairman S Somanath said that the overall process of landing may take around 30 minutes. “The exact timeline would depend on the systems and landing conditions. We have to decide whether to land at the first visible site or choose another safer spot based on hazard detection,” he said.
Vikram‘s function
After landing, Vikram will extend a ramp for Pragyan to roll out and explore the surface and start studies. Isro has packed Vikram and Pragyan with instruments. The lander and the rover are designed to function for one lunar day (14 Earth days).
Challenges
Among the landing challenges would be lunar dust. Firing onboard engines close to the surface results in backward flow of hot gases and dust. The hard, fine lunar dust has negative charge which makes it stick to surfaces and thereby interfere with deployment mechanisms including that of the solar panel.
Isro may postpone soft landing on Moon to Aug 27
According to ISRO Space Applications Centre Director Nilesh Desai, the focus of the scientists would be on reducing the speed of the spacecraft above the lunar surface.
“The lander will try to land on the Moon’s surface from a height of 30km on August 23, and its velocity at that time will be 1.68 km per second. Our focus will be on reducing that speed because the Moon’s gravitational force will also play its part,” he told PTI in Ahmedabad.
Chandrayaan-3: How to watch livestream of soft landing, why moon mission is important and other details
“If we do not control that speed, there will be chances of a crash landing. If any health parameter (of the lander module) is found abnormal on August 23, then we will postpone the landing to August 27,” he said.
Chandrayaan-3 lander module’s soft landing on the lunar surface would put India in the elite club of countries that have reached the Moon’s surface — the United States, the erstwhile Soviet Union and China.