CURRENT AFFAIRS

Detailed explanation-1: -As a precaution to extend the operational life of navigation satellite, ISRO is running only one rubidium atomic clock instead of two in the remaining satellites.

Detailed explanation-2: -Each GPS satellite contains multiple atomic clocks that contribute very precise time data to the GPS signals. GPS receivers decode these signals, effectively synchronizing each receiver to the atomic clocks.

Detailed explanation-3: -NAVIC is constellation of 7 satellites in geosynchronous orbit & 2 backup satellites on ground. Each satellite consists of 3 atomic clocks. There are total 27 atomic clock in NAVIC. Default satellite would replaced by one of back-up satellite 1H.

Detailed explanation-4: -Distance and Accuracy The method by which atomic clocks work has an inherent limitation – the time it takes for the radio signal to reach the clock. The signal gives the time at the point the signal left the station, but the actual time at which it reaches your clock will be slightly later.