SALIENT FEATURES OF IRNSS 1G

Home : Missions : Navigation : IRNSS - Indian Regional Navigation Satellite System : SALIENT FEATURES OF IRNSS 1G Last updated on: 28-Apr-2016

SALIENT FEATURES OF IRNSS 1G

Mission	Navigation Satellite
Payload	Navigation payload in S band and L5 band, CDMA ranging payload in C band, Rubidium Atomic Frequency Standard
Mass	Lift - off Mass : 1430 Kg, Dry Mass : 610 Kg
Power Requirement	2 solar panels generating 1674 W , Batteries: 1 x 90 Ah Li Ion batteries
Bus Platform	Standard I-1K
Propulsion System	Conventional Bipropellant system with 12 thrusters and one 440N Liquid Apogee motor configuration use Mono Methyl Hydrazine as fuel and Mixed Oxides of Nitrogen (MON-3) as oxidizer.
Control System	3-axes body stabilized Zero momentum biased system with AOCE, star sensors, sun sensors, reaction wheels (tetrahedral configuration), magnetic torquers and thrusters
Mission life	>10 years
Orbital slot	Geo-synchronous orbit / 129.5^o E Longitude with 5.1^o inclination
TTC System	CCSDS Type C-band & Ext-C Telemetry, Tracking & Command Systems
Special Features / New Technologies	Atomic clock Dual 1553 Bus concept Dual Helix Array Antenna (dia. 1.1m) in L5 and S bands Planar Array Antenna Synthesizer based TTC receiver Yaw flipping maneuver High power 250 W TWTA in S band
Launch	April 28, 2016
Launch vehicle	PSLV-C33