Begin typing your search above and press return to search.
proflie-avatar
Login
exit_to_app
Democracy that banks on the electorate
access_time 28 March 2024 5:34 AM GMT
Lessons to learn from Moscow terror attack
access_time 27 March 2024 6:10 AM GMT
Gaza
access_time 26 March 2024 4:34 AM GMT
The poison is not in words, but inside
access_time 25 March 2024 5:42 AM GMT
A witchhunt, plain and simple
access_time 23 March 2024 9:35 AM GMT
DEEP READ
Schools breeding hatred
access_time 14 Sep 2023 10:37 AM GMT
Ukraine
access_time 16 Aug 2023 5:46 AM GMT
Ramadan: Its essence and lessons
access_time 13 March 2024 9:24 AM GMT
When ‘Jai Sree Ram’ becomes a death call
access_time 15 Feb 2024 9:54 AM GMT
exit_to_app
Homechevron_rightSciencechevron_rightISRO avoids...

ISRO avoids Chandrayaan-2 collision with NASA's LRO

text_fields
bookmark_border
ISRO avoids Chandrayaan-2 collision with NASAs LRO
cancel
camera_alt

Chandrayaan 2 and LRO

Chennai: For the first time in its space exploration mission, India's national space agency has revealed that it had to perform a collision avoidance manoeuvre for Chandrayaan-2 to avoid any chances of adverse events when it came in close proximity to the US orbiter around Moon.

According to ISRO, Chandrayaan-2 Orbiter and National Aeronautics and Space Administration's (NASA) LRA were predicted to come very close to each other on October 20, 2021 near the Lunar North pole.

It carried out the manoeuvre at 8:22 pm on October 18. The very close conjunction at 11:15 am on October 20. It added that such an event would have brought the two lunar satellites' orbits at a distance of less than 100 metres. The distance between the two orbiters would have been less than 3 km at the time of closest approach. For satellites that travel tens of kilometres every second, this is a precariously small distance.

ISRO performed the manoeuvre after mutual agreement with NASA. It was agreed that Chandrayaan-2 would perform the close approach manoeuvre to ensure the orbiters are far enough when the next close conjunction occurs.

According to ISRO, after orbit determination of Chandrayaan-2 Orbiter post-manoeuvre tracking data, it was reconfirmed that there would be no further close conjunctions with LRO in the near future with the achieved orbit.

Both the orbiters orbit the moon in a nearly polar orbit and hence, both the spacecraft come close to each other over the Lunar poles.

The Indian Orbiter has been going around the moon for the past two years.

It is common for satellites in earth orbit to undergo collision avoidance manoeuvres to mitigate collision risk due to space objects including space debris and operational spacecraft.

In 2020, India's 700 kg cartography satellite Cartosat-2F and Russia's 450 kg Kanopus-V satellite had a near miss in outer space, said Roscosmos, Russia's state space corporation.

Both the earth observation satellites were as close as 224 metres.

Kanopus is an Earth observation with a launch mass of 450 kg mini-satellite mission of the Russian Space Agency.

Show Full Article
TAGS:#NASAISROChandrayaan 2 Orbiter
Next Story