OPS 1920, 2481
Orbit data source: Space-Track
OPS 1920, 2481 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Wed, 05 Oct 1966 UTC via an ATLAS SLV-3 AGENA D 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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2481 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
LMSC
Mission
Spacecraft
Bus & Motor
MIDAS, Unknown motor
Mass
~2,000 kg wet, ~1,000 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 1920
1 02481U 66089A 25291.91356920 -.00000002 00000-0 -19174-2 0 9996
2 02481 89.8401 32.7609 0032858 200.7436 159.2083 8.59254161851948Epoch: 2025-10-18T21:55Z
TLE epoch observation values (Epoch: 2025-10-18T21:55:32.378Z)
Latitude
0.00001°
Longitude
36.23823°
Altitude
3,724.021 km
Speed
6.273 km/s
True Right ascension
02h 11m 02s
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
03:16:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,721.785 km
Perigee altitude
3,655.63 km
Semi-major axis
10,066.844 km
Eccentricity
0.00329
Inclination
89.8401°
RAAN
32.7609°
Arg. of periapsis
200.7436°
True anomaly
159.34144°
Mean anomaly
159.2083°
Eccentric anomaly
159.27492°
Mean motion
2.14884 °/min
Orbital period
167.53 mins
BSTAR
-0.0019174
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Other satellites on launch #89 in the year 1966 (1966-10-05 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 1920 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. |
|---|---|---|---|---|---|---|---|
| 33 mins | 2025-10-19 09:09:51.224Z | 225.294° WSW | 2025-10-19 09:25:51.224Z | 285.893° WNW | 29.922° | 2025-10-19 09:42:51.224Z | 349.978° N |
| 14 mins | 2025-10-19 15:34:51.224Z | 31.808° NE | 2025-10-19 15:40:51.224Z | 52.083° ENE | 13.109° | 2025-10-19 15:48:51.224Z | 79.022° E |
| 36 mins | 2025-10-19 18:16:51.224Z | 4.912° NNE | 2025-10-19 18:34:51.224Z | 92.905° ESE | 42.868° | 2025-10-19 18:52:51.224Z | 170.416° S |
| 30 mins | 2025-10-19 21:04:51.224Z | 350.406° N | 2025-10-19 21:18:51.224Z | 297.614° NW | 30.434° | 2025-10-19 21:34:51.224Z | 237.486° WSW |
| 28 mins | 2025-10-20 04:47:51.224Z | 113.943° SE | 2025-10-20 05:01:51.224Z | 61.198° ENE | 28.289° | 2025-10-20 05:15:51.224Z | 9.974° NNE |
| 37 mins | 2025-10-20 07:27:51.224Z | 184.973° SSW | 2025-10-20 07:45:51.224Z | 271.11° WNW | 43.952° | 2025-10-20 08:04:51.224Z | 357.09° N |
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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