NORAD 13777
IRAS
Time
- Local time
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Position
- Latitude
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- Longitude
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- 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
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- Declination
- -
- Local sidereal time
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Sunlight
- Day / night
- -
Identity
- NORAD ID
- 13777
- International designator
- 1983-004A
- Launch date
- Jan 26, 1983
- Launch site
- AIR FORCE WESTERN TEST RANGE
- Radar size (RCS)
- Large (over 1 m²)
Radio
- Uplink
- -
- Downlink
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- Beacon
- -
- Mode
- -
Active transmitters from SatNOGS DB, licensed CC BY-SA 4.0.
Your station
- Grid locator
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Live
- Azimuth
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- Elevation
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- Range
- -
- Range rate
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- Naked-eye visibility
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- Sub-satellite grid
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- Footprint diameter
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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
- 2026-10-23 23:50:26 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 103 minutes, on an orbit tilted 99.1° from the equator, between 902 and 933 km up. Earth is drawn to scale.
Drag to turn · pinch to zoom · it moves live
About IRAS
IRAS is a satellite from the United States, launched on Jan 26, 1983 from Air Force Western Test Range.
It circles Earth every 103 minutes (14.0 times a day), between 876 and 904 km up, on an orbit tilted 99.1° to the equator, so its path covers latitudes up to 81° north and south.
The map shows where it is right now; the pass list tells you when it next comes over your location.
Orbit height over the past year
Over the last 12 days its lowest point went from 876 km to 876 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.