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USA 99 (MILSTAR-1 1)
MilitaryMEOUnited States
USA 99 (MILSTAR-1 1) is a military operated by United States, currently in medium Earth orbit near 36,232 km. It completes one orbit of Earth roughly every 1459 minutes at an inclination of 17.6°. It was launched in 1994. Track its live position and see when it passes over your location on azmth.
Orbital data
- NORAD ID
- 22988
- COSPAR ID
- 1994-009A
- Type
- Military
- Orbit
- MEO
- Perigee (lowest)
- 36,232 km
- Apogee (highest)
- 36,237 km
- Inclination
- 17.61°
- Orbital period
- 1459 min
- Launch year
- 1994
- Operator
- United States
Orbital data from CelesTrak, refreshed every 2 hours. Element epoch: 2026-06-04.
About MEO orbit
Medium Earth Orbit. Between 2,000 and 35,786 km. Home to navigation constellations like GPS (~20,200 km), Galileo, and BeiDou. Orbital period 2 to 24 hours.
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