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NORAD 40101

USA 255

📡 Radar viewIn orbit
Tap to zoom and pan
Computing position…
Blue circle: where it is above the horizon now

Time

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Speed

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From your location

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Sunlight

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Its orbit in 3D

Goes round Earth once every 24.3 hours, on an orbit tilted 9.6° from the equator, between 36,223 and 36,244 km up. Earth is drawn to scale.

Drag to turn · pinch to zoom · it moves live

About USA 255

USA 255 is a satellite from the United States, launched on Jul 28, 2014 from Air Force Eastern Test Range.

It sits in geostationary orbit about 35,800 km above the equator near 106°W, turning with Earth so it stays over the same spot.

The map shows where it is right now; the pass list tells you when it next comes over your location.

ANGELS · U.S. Air Force small satellite

Operated by
3d Space Experimentation Squadron, Air Force Research Laboratory
Built by
Orbital Sciences Corporation
Mass
70 kg

Wikipedia article ↗ · Names and facts: Wikidata (CC0).

Orbit height over the past year

Over the last 22 days its lowest point went from 36,173 km to 36,174 km. Sudden rises are engine burns that lift the orbit; slow declines are drag from the thin upper atmosphere.

Lowest point (perigee)Highest point (apogee)
36,20036,250

From Space-Track element sets, one point a day.