OPS 0252, 13791
Orbit data source: Space-Track
OPS 0252, 13791 is an American payload satellite in LEO that was launched on Wed, 09 Feb 1983 UTC via an ATLAS H launch vehicle from the Air Force Western Test Range (AFWTR). 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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13791 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Martin Marietta
Mission
Spacecraft
Bus & Motor
NOSS MSD, Unknown motor
Mass
590 kg wet, 559 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 OPS 0252
1 13791U 83008A 26131.15610154 .00001709 00000-0 23009-3 0 9990
2 13791 63.3099 33.8510 0682301 135.7767 229.9947 13.86995459101158Epoch: 2026-05-11T03:44Z
TLE epoch observation values (Epoch: 2026-05-11T03:44:47.173Z)
Latitude
0°
Longitude
108.70557°
Altitude
1,280.698 km
Speed
7.047 km/s
True Right ascension
02h 15m 24s
True Declination
0° 00' 00"
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
22:24:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,437.167 km
Perigee altitude
438.807 km
Semi-major axis
7,316.124 km
Eccentricity
0.06823
Inclination
63.3099°
RAAN
33.851°
Arg. of periapsis
135.7767°
True anomaly
224.32685°
Mean anomaly
229.9947°
Eccentric anomaly
227.1296°
Mean motion
3.46834 °/min
Orbital period
103.8 mins
BSTAR
0.00023009
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Other satellites on launch #8 in the year 1983 (1983-02-09 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 0252 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-05-11 17:43:04.333Z | 142.132° SSE | 2026-05-11 17:46:04.333Z | 114.412° SE | 15.539° | 2026-05-11 17:49:04.333Z | 82.746° E |
| 10 mins | 2026-05-11 19:28:04.333Z | 214.903° SW | 2026-05-11 19:33:04.333Z | 291.925° WNW | 44.901° | 2026-05-11 19:38:04.333Z | 32.851° NE |
| 5 mins | 2026-05-11 21:18:04.333Z | 289.025° WNW | 2026-05-11 21:20:04.333Z | 311.218° NW | 15.377° | 2026-05-11 21:23:04.333Z | 350.014° N |
| 5 mins | 2026-05-12 04:34:04.333Z | 299.499° NW | 2026-05-12 04:36:04.333Z | 243.802° WSW | 29.91° | 2026-05-12 04:39:04.333Z | 174.974° S |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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