Science
EOS-4
Indian All-Weather SAR Imaging Satellite · ISRO
Right now
LiveIt moves every second. See exactly where it is — worked out from its orbit, on your own device — on the live 3D globe.
- Over
- —
- Altitude
- —
- Speed
- —
EOS-4 (RISAT-1A) gives India something it desperately needed after losing the original RISAT-1 to a malfunction: a working all-weather radar eye watching its monsoon-soaked agricultural heartland and its persistently cloud-covered Himalayan frontier — terrain where optical satellites are effectively useless for months at a time every single year.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 330–331 mi (531–533 km)
- Inclination
- 97.5°
- One orbit
- 95.1 minutes15.1 orbits a day
- NORAD ID
- 51656
- Int’l designator
- 2022-013A
- Launched
- 2022
Orbital elements from CelesTrak, as of 22 Sep 2026.