OPS 3151, 9803
Orbit data source: Space-Track
OPS 3151, 9803 is a payload satellite owned by SAMSO (US) in GEO that was launched on Sun, 06 Feb 1977 UTC via a TITAN IIIC launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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9803 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
TRW
Mission
Non-operational spacecraft
Bus & Motor
DSP P2, MRE-4
Mass
1,040 kg wet, ~980 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
RCS unknown
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 OPS 3151
1 9803U 77007A 26145.42380005 -.00000054 00000-0 00000+0 0 9990
2 9803 4.7818 284.5649 0078987 38.8797 345.0157 0.97528404 24436Epoch: 2026-05-25T10:10Z
TLE epoch observation values (Epoch: 2026-05-25T10:10:16.324Z)
Latitude
1.9273°
Longitude
-87.4357°
Altitude
36,246.744 km
Speed
3.07 km/s
True Right ascension
20h 32m 34s
True Declination
1° 55' 31"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
02:15:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
36,913.949 km
Perigee altitude
36,235.406 km
Semi-major axis
42,952.814 km
Eccentricity
0.0079
Inclination
4.7818°
RAAN
284.5649°
Arg. of periapsis
38.8797°
True anomaly
344.77942°
Mean anomaly
345.0157°
Eccentric anomaly
344.89779°
Mean motion
0.24381 °/min
Orbital period
1,476.55 mins
BSTAR
0
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Other satellites on launch #7 in the year 1977 (1977-02-06 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.OPS 3151 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2026-05-25 17:02:55.500Z | 153.725° SSE | 2026-05-26 15:26:55.500Z | 168.525° S | 36.93° | 2026-05-26 17:02:55.500Z | 169.385° S |
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9803 neighbors
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Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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