Indian Regional Navigation Satellite System is India's own regional navigation satellite system to provide accurate real-time positioning & timing services over India and region extending to 1500 Km around India. It offers two services Standard Positioning Service (SPS) and Restricted Service (RS) with encryption. The fully deployed IRNSS system consist of 3 satellites in GEO orbit and 4 satellites in GSO orbit, approximately 36,000 km altitude above earth surface. Each satellite is configured around I1K bus and is continuously monitored & maintained by ground segment.
Each satellite has two payloads viz. Navigation payload and CDMA Ranging payload in addition with retro-reflector. The payload generates navigation signals at L5 and S-band. The design of the payload makes the IRNSS system inter-operable and compatible with GPS and Galileo.
Orbit Location: 55°E Geo
Mission Life: 12 Years
Equipments: L5 & S-band Navigation payload C-band Ranging Payload Frequency: C-band: U/L: 6700 – 6725 MHz (RHCP) D/L: 3400 – 3425 MHz (LHCP) L5-band: D/L: 1176.45 MHz (BW-24 MHz) (RHCP) S-band: D/L: 2492.028 MHz (BW-16.5 MHz) (RHCP)