IRNSS-1F is the sixth navigation satellite out of seven in the Indian Regional Navigational Satellite System (IRNSS) series of satellites after IRNSS-1A, IRNSS-1B, IRNSS-1C, IRNSS-1D and IRNSS-1E. The satellite is one among the seven of the IRNSS constellation of satellites launched to provide navigational services to the region.
It was launched aboard a PSLV-XL rocket bearing flight number C32 and was successfully put into geosynchronous orbit at 1601 hrs IST on 10 March 2016.
The satellite carries two types of payloads. The navigation payload transmit navigation service signals to users and ranging payload consists of C-band transponder that facilitates accurate determination of the range of the satellite.
It carries Corner Cube Retro Reflectors for laser ranging.
IRNSS-1F has a 12-year mission life. According to a press release by ISRO on 13 May 2026, the satellite's imported atomic clock stopped functioning. The satellite will be used to provide one way broadcast messaging services from thereon. The satellite stopped its primary functions on 10 March.