Geostationary
USA 170
Classified · NRO / US Government
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A classified US government satellite in geostationary orbit whose mission remains officially unacknowledged. Orbital analysts note its position is consistent with either a signals intelligence collector or an advanced data relay satellite supporting intelligence operations. The NRO's GEO assets are among the most capable intelligence satellites ever built, providing persistent coverage of areas of strategic interest.
Its orbit
- Orbit
- Geostationaryappears to hang motionless over one spot on the equator
- Altitude
- 22,237–22,246 mi (35,787–35,802 km)
- Inclination
- 10.7°
- One orbit
- 23.9 hoursabout one orbit a day
- NORAD ID
- 27875
- Int’l designator
- 2003-040A
- Launched
- 2003
Orbital elements from CelesTrak, as of 22 Sep 2026.