How India’s Lunar Orbiter Chandrayaan-2 avoided collision with NASA’s LRO- Explained https://ift.tt/eA8V8J

The calculations by both ISRO and NASA showed that the radial operation between the spacecraft would be less than 100 meters and the closest approach distance would be 3km, at a certain time. 

from Zee News :India National https://ift.tt/3nloFRB