CLASSIFIED
ORS-5 SENSORSAT
US Military Space Surveillance Satellite · US Air Force (Operationally Responsive Space Office)
Right now
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ORS-5 SensorSat, a US Air Force satellite parked in an unusual near-equatorial orbit specifically to watch the crowded geostationary belt from below — scanning for objects near GEO that could threaten US satellites, filling a surveillance gap that traditional ground-based telescopes struggle to cover consistently due to weather and daylight limitations.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 354–363 mi (570–584 km)
- Inclination
- 0.0°
- One orbit
- 96.1 minutes15.0 orbits a day
- NORAD ID
- 42921
- Int’l designator
- 2017-050A
- Launched
- 2017
Orbital elements from CelesTrak, as of 22 Sep 2026.
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