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: 1 day ago
TLE from 1 day ago
0 OPS 1920
1 02481U 66089A 26037.39422503 -.00000017 00000-0 -96476-2 0 9994
2 02481 89.8354 32.1012 0032962 91.1551 269.3078 8.59256126861438Epoch: 2026-02-06T09:27Z
TLE epoch observation values (Epoch: 2026-02-06T09:27:41.042Z)
Latitude
0.00008°
Longitude
113.64746°
Altitude
3,693.569 km
Speed
6.291 km/s
True Right ascension
02h 08m 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
17:12:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,721.874 km
Perigee altitude
3,655.51 km
Semi-major axis
10,066.829 km
Eccentricity
0.0033
Inclination
89.8354°
RAAN
32.1012°
Arg. of periapsis
91.1551°
True anomaly
268.93013°
Mean anomaly
269.3078°
Eccentric anomaly
269.11896°
Mean motion
2.14884 °/min
Orbital period
167.53 mins
BSTAR
-0.0096476
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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. |
|---|---|---|---|---|---|---|---|
| 32 mins | 2026-02-07 21:51:57.566Z | 127.928° SE | 2026-02-07 22:07:57.566Z | 66.341° ENE | 32.915° | 2026-02-07 22:23:57.566Z | 6.392° NNE |
| 36 mins | 2026-02-08 00:35:57.566Z | 196.167° SSW | 2026-02-08 00:52:57.566Z | 272.093° WNW | 41.347° | 2026-02-08 01:11:57.566Z | 355.557° N |
| 6 mins | 2026-02-08 03:44:57.566Z | 302.243° NW | 2026-02-08 03:47:57.566Z | 312.206° NW | 10.689° | 2026-02-08 03:50:57.566Z | 322.128° NNW |
| 32 mins | 2026-02-08 09:45:57.566Z | 12.145° NNE | 2026-02-08 10:01:57.566Z | 77.908° E | 32.348° | 2026-02-08 10:17:57.566Z | 140.54° SSE |
| 34 mins | 2026-02-08 12:32:57.566Z | 356.152° N | 2026-02-08 12:48:57.566Z | 287.901° WNW | 41.424° | 2026-02-08 13:06:57.566Z | 209.115° SW |
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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