NORAD 858
SYNCOM 3
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
- 858
- International designator
- 1964-047A
- Launch date
- Aug 19, 1964
- 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
- 2026-10-18 17:59:22 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 23.9 hours, on an orbit tilted 7.3° from the equator, between 35,790 and 35,801 km up. Earth is drawn to scale.
Drag to turn · pinch to zoom · it moves live
About SYNCOM 3
SYNCOM 3 is a satellite from the United States, launched on Aug 19, 1964 from Air Force Eastern Test Range.
It sits in geostationary orbit about 35,800 km above the equator near 128°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.
Syncom 3 · communications satellite
- Built by
- Hughes Aircraft Company
Names and facts: Wikidata (CC0).