space medium Fill in the Blank

The IRNSS-1A satellite was replaced by NVS-01 due to failure of its _______.

  1. Solar panels
  2. Rubidium atomic clocks
  3. Thrusters
  4. Transponders

Answer: Rubidium atomic clocks

All three Rubidium clocks on IRNSS-1A failed in 2016-17, degrading positioning accuracy; NVS-01 launched May 2023 with indigenous clocks as replacement.

Topic Space Technology - Navigation
Exam Relevance UPSC Prelims, SSC CHSL