NORAD 25669
USA 142
Time
- Local time
- -
- -
Position
- Latitude
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- 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
- 25669
- International designator
- 1999-017A
- Launch date
- Apr 9, 1999
- Launch site
- AIR FORCE EASTERN TEST RANGE
- Radar size (RCS)
- Large (over 1 m²)
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
- 2026-11-03 11:57:09 UTC
- TLE age
- -
Radio data from SatNOGS DB and SatNOGS Network, licensed CC BY-SA 4.0.
Its orbit in 3D
Goes round Earth once every 10.3 hours, on an orbit tilted 29.5° from the equator, between 85 and 36,326 km up. Earth is drawn to scale.
Drag to turn · pinch to zoom · it moves live
About USA 142
USA 142 is a satellite from the United States, launched on Apr 9, 1999 from Air Force Eastern Test Range.
It circles Earth every 618 minutes (2.3 times a day), between 581 and 34,723 km up, on an orbit tilted 29.5° to the equator, so its path covers latitudes up to 29° north and south.
The map shows where it is right now; the pass list tells you when it next comes over your location.
DSP 19 · American early warning satellite
Names and facts: Wikidata (CC0).