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OAO 1, 2142

Orbit data source: Space-Track

OAO 1, 2142 is a payload satellite owned by GSFC (US) in LEO that was launched on Fri, 08 Apr 1966 UTC via an ATLAS SLV-3 AGENA D 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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Identifier
2142, 1966-031A
Orbit
LEO
Country
Flag of USUS
Related business
Manufacturer
Grummann
Mission
Spacecraft
Bus & Motor
OAO, Unknown motor
Mass
1,769 kg wet, 1,769 kg dry
Launch date (UTC)
1966-04-08 (60 years ago)
Launch vehicle
ATLAS SLV-3 AGENA D
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
OCT CYL + 2 PAN, 3.3 m
Radar Cross Section
Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago
0 OAO 1
1  2142U 66031A   26209.10283272  .00000096  00000-0  40325-4 0  9992
2  2142  35.0454 106.5720 0007584 257.2706 102.7134 14.34702699156966
Epoch: 2026-07-28T02:28Z
TLE epoch observation values (Epoch: 2026-07-28T02:28:04.747Z)
Latitude
Longitude
123.77536°
Altitude
776.207 km
Speed
7.467 km/s
True Right ascension
07h 06m 17s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
N/A
Visualization observer readout
Local Sidereal Time
11:20:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
784.599 km
Perigee altitude
773.743 km
Semi-major axis
7,157.308 km
Eccentricity
0.00076
Inclination
35.0454°
RAAN
106.572°
Arg. of periapsis
257.2706°
True anomaly
102.79816°
Mean anomaly
102.7134°
Eccentric anomaly
102.75578°
Mean motion
3.58442 °/min
Orbital period
100.43 mins
BSTAR
0.000040325
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Other satellites on launch #31 in the year 1966 (1966-04-08 UTC)

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