SALIENT FEATURES OF IRNSS 1E

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SALIENT FEATURES OF IRNSS 1E

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 : 1424.71 Kg ; Dry Mass: 597.85 Kg
Power Requirement	2 solar panels generating 1600 W ,Batteries: 1 X 90 Ah Lithium ion batteries
Bus Platform	Standard I-1K
Propulsion System	Conventional Bipropellant System with 12 thrusters configuration using Mono Methyl Hydrazine as fuel and Mixed Oxides of Nitrogen (MON-3) as oxidizer
Control System	3-axes body stabilized zero momentum system with AOCE, star sensors, sun sensors, reaction wheels (tetrahedral configuration), magnetic torquers and thrusters
Mission life	>10 years
Orbital slot	Geo-synchronous orbit / 111.75^o E, Longitude with 29^o inclination
TTC System	CCSDS Type C-band Telemetry, Tracking and Command Systems
Special Features/New Technologies	Atomic clock used for first time Dual 1553 Bus concept Corner Cube Retro Reflector for Laser Ranging Dual Helix Array Antenna (dia. 1.1m) in L5 and S bands Yaw flipping maneuver High power 250 W TWTA in S band used for first time
Launch	January 20, 2016
Launch vehicle	PSLV-C31