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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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
TRW
Mission
Defense Early Warn
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
Cyl + 4 Pan, Unknown HBR
Radar Cross Section
27.525 m²
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 OPS 3151
1 09803U 77007A 25243.24626487 -.00000080 00000-0 00000-0 0 9995
2 09803 5.4725 286.8063 0077976 30.7266 141.9232 0.97529775 21824Epoch: 2025-08-31T05:54Z
TLE epoch observation values (Epoch: 2025-08-31T05:54:37.284Z)
Latitude
0.64218°
Longitude
31.71974°
Altitude
36,837.703 km
Speed
3.028 km/s
True Right ascension
06h 40m 10s
True Declination
0° 38' 30"
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
03:45:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
36,909.197 km
Perigee altitude
36,239.346 km
Semi-major axis
42,952.408 km
Eccentricity
0.0078
Inclination
5.4725°
RAAN
286.8063°
Arg. of periapsis
30.7266°
True anomaly
142.47006°
Mean anomaly
141.9232°
Eccentric anomaly
142.19705°
Mean motion
0.24382 °/min
Orbital period
1,476.52 mins
BSTAR
0
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Other satellites on launch #7 in the year 1977 (1977-02-06 UTC)
OPS 3151 Visibility
Observer location: undefined°, undefined°
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. |
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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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