NORAD 40099
USA 253
Time
- Local time
- -
- -
Position
- Latitude
- -
- Longitude
- -
- Altitude
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Speed
- Miles per hour
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- Kilometers per second
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- Miles per second
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From your location
- Azimuth
- -
- Elevation
- -
- Right ascension
- -
- Declination
- -
- Local sidereal time
- -
Sunlight
- Day / night
- -
Identity
- NORAD ID
- 40099
- International designator
- 2014-043A
- Launch date
- Jul 28, 2014
- Launch site
- AIR FORCE EASTERN TEST RANGE
- Radar size (RCS)
- -
Radio
- Uplink
- -
- Downlink
- -
- Beacon
- -
- Mode
- -
Active transmitters from SatNOGS DB, licensed CC BY-SA 4.0.
Your station
- Grid locator
- -
Live
- Azimuth
- -
- Elevation
- -
- Range
- -
- Range rate
- -
- Naked-eye visibility
- -
- Sub-satellite grid
- -
- Footprint diameter
- -
Upcoming passes
Next 48 h · your local timeUse your location to predict passes.
Mutual visibility
With another station · next 48 hUse your location to find mutual windows.
Transmitters
Nominal · add location for Doppler-
Recent receptions
SatNOGS Network-
Orbit data
- TLE epoch
- 2026-11-01 01:16:02 UTC
- TLE age
- -
Radio data from SatNOGS DB and SatNOGS Network, licensed CC BY-SA 4.0.
About USA 253
USA 253 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 20°E, 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.
GSSAP-1 · American near-geosynchronous space surveillance satellite
- Operated by
- Combat Forces Command
- Built by
- Orbital Sciences Corporation
Names and facts: Wikidata (CC0).
Orbit height over the past year
Over the last 21 days its lowest point went from 36,778 km to 36,779 km. Sudden rises are engine burns that lift the orbit; slow declines are drag from the thin upper atmosphere.
From Space-Track element sets, one point a day.