NORAD 25724
USA 143
Time
- Local time
- -
- -
Position
- Latitude
- -
- Longitude
- -
- Altitude
- -
Speed
- Miles per hour
- -
- Kilometers per second
- -
- Miles per second
- -
From your location
- Azimuth
- -
- Elevation
- -
- Right ascension
- -
- Declination
- -
- Local sidereal time
- -
Sunlight
- Day / night
- -
Identity
- NORAD ID
- 25724
- International designator
- 1999-023A
- Launch date
- Apr 30, 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 15:56:57 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 2.6 hours, on an orbit tilted 28.2° from the equator, between 1,107 and 5,139 km up. Earth is drawn to scale.
Drag to turn · pinch to zoom · it moves live
About USA 143
USA 143 is a satellite from the United States, launched on Apr 30, 1999 from Air Force Eastern Test Range.
It circles Earth every 154 minutes (9.4 times a day), between 1,099 and 5,146 km up, on an orbit tilted 28.2° to the equator, so its path covers latitudes up to 28° north and south.
The map shows where it is right now; the pass list tells you when it next comes over your location.
MILStar 3 · satellite
Names and facts: Wikidata (CC0).