The IRNSS-1A satellite was replaced by NVS-01 due to failure of its _______.
- Solar panels
- Rubidium atomic clocks
- Thrusters
- 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.