BackForward Satellite: EOS 04 

Satellite details
Acronym EOS 04
Full name Earth Observation Satellite - 04
Satellite Description
  • 3rd flight unit of the RISAT programme.  Previous name: RISAT-1A.
  • Main mission: land observation.
Mass at launch 1858 kg Dry mass
Power 2200 W
Data access link no link provided
Data access information
  • Direct reception at appointed ground stations in X-band.
  • Off-line data are distributed by the National Remote Sensing Center (NRSC) in Hyderabad. Web site:
Orbit Sunsynchronous orbit Altitude 536 km
ECT 06:00 desc


Space agency ISRO
Status Planned
Details on Status
(as available)
Launch ≥2022 EOL ≥2027
Last update: 2021-11-25
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on EOS 04

Acronym Full name
SAR-C Synthetic Aperture Radar (C-band)
Show instrument status and calibration
Telecommunication frequency or microwave sensing channel information Show expert details
Service Dir or Mode Frequency Emission designator Bandwidth Polarisation D/A Data rate or Baseband Comments
SAR-C active 5350 - 5350 MHz N/R  kHz - A   C-band SAR