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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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Identifier
2481, 1966-089A
Orbit
LEO
Last TLE update
13 hours ago
Origin
Manufacturer
LMSC
Mission
Defense Early Warn
Bus & Motor
MIDAS, Unknown motor
Mass
~2,000 kg wet, ~1,000 kg dry
Launch date (UTC)
1966-10-05 (59 years ago)
Launch vehicle
ATLAS SLV-3 AGENA D
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cone + Cyl + 2 Pan, 1.5 m
Radar Cross Section
4.418 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 13 hours ago
0 OPS 1920
1 02481U 66089A   25198.89564233  .00000003  00000-0  77407-3 0  9990
2 02481  89.8212  33.3348 0031963 295.4011  64.3533  8.59254905843955
Epoch: 2025-07-17T21:29Z
TLE epoch observation values (Epoch: 2025-07-17T21:29:43.497Z)
Latitude
-0.00005°
Longitude
134.94867°
Altitude
3,679.22 km
Speed
6.3 km/s
True Right ascension
02h 13m 20s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-57.95872°
Longitude
-44.77017°
Altitude
3,695.6 km
Speed
6.297 km/s
Apparent Right ascension
12h 49m 45s
Apparent Declination
-52° 58' 43"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
23:16:46
Azimuth
222.717° SW
Elevation
-69.493°
Doppler factor
1
Orbital elements
Apogee altitude
3,720.878 km
Perigee altitude
3,656.525 km
Semi-major axis
10,066.839 km
Eccentricity
0.0032
Inclination
89.8212°
RAAN
33.3348°
Arg. of periapsis
295.4011°
True anomaly
64.68405°
Mean anomaly
64.3533°
Eccentric anomaly
64.51862°
Mean motion
2.14884 °/min
Orbital period
167.53 mins
BSTAR
0.00077407
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Other satellites on launch #89 in the year 1966 (1966-10-05 UTC)
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