IRS-1B
IRS-1B is a satellite operated by India, currently in low Earth orbit, around 891 km altitude. It completes one orbit of Earth roughly every 103 minutes at an inclination of 99.4°. It was launched in 1991. Track its live position and see when it passes over your location on azmth.
Orbital data
- NORAD ID
- 21688
- COSPAR ID
- 1991-061A
- Type
- Satellite
- Orbit
- LEO
- Perigee (lowest)
- 891 km
- Apogee (highest)
- 925 km
- Inclination
- 99.41°
- Orbital period
- 103 min
- Launch year
- 1991
- Operator
- India
Orbital data updated: 2026-07-22 · from CelesTrak, refreshed every 2 hours.
About LEO orbit
Low Earth Orbit. Up to 2,000 km altitude. Where most satellites live including the ISS (~420 km), Starlink (~550 km), and Earth observation. Orbital period roughly 90 minutes.
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