Deorbiting manoeuvres involve the firing of the spacecraft’s engines to slow down its pace and bring it closer to the Moon’s surface

Current Affairs:- After effectively isolating India’s first Moon lander, Vikram, on Monday, the Indian Space Research Organization (Isro) directed its first deorbit move effectively on Tuesday. The move started at 0850 hours and had a length of 4 seconds.
Isro authorities said that after Tuesday’s deorbit move, the lander had accomplished a 109 x 120 km circle around the Moon.
One more deorbit move will be directed on Wednesday and the circle that the lander will accomplish after this will be 39 X 110 km. The exertion is to delicate land the lander in the South polar district of the Moon between two cavities – Manzinus C and Simpelius N – on September 7, 2019.
Deorbiting moves include the terminating of the shuttle’s motors to hinder its pace and carry it closer to the Moon’s surface.
Prior, Isro Chairman K Sivan said that utilizing deorbiting moves, the space organization would turn the lander to the contrary side and consume all the five motors for a brief timeframe to decrease the separation between the lander and the Moon’s surface, before pivoting it back to the past position. In the second deorbiting move, the organization will by and by pivot the lander to the contrary side and direct a little consume of the motors to further cut down the circle.
