IRIDIUM 155
IRIDIUM 155 is a communications satellite, with ownership listed as United States in CelesTrak's catalogue, currently in low Earth orbit, around 783 km altitude. It completes one orbit of Earth roughly every 100 minutes at an inclination of 86.4°. It was launched in 2018. Track its live position and see when it passes over your location on azmth.
Orbital data
- NORAD ID
- 43573
- COSPAR ID
- 2018-061E
- Type
- Communications
- Orbit
- LEO
- Perigee (lowest)
- 783 km
- Apogee (highest)
- 786 km
- Inclination
- 86.40°
- Orbital period
- 100 min
- Launch year
- 2018
- Owner (CelesTrak)
- United States
Orbital data updated: 2026-09-14 · 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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