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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
Last TLE update
1 day ago
Origin
Manufacturer
Grummann
Mission
Civil Astronomy
Bus & Motor
OAO, Unknown motor
Mass
1,769 kg wet, 1,769 kg dry
Launch date (UTC)
1966-04-08 (59 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, 6.5 m
Radar Cross Section
9.480 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago
0 OAO 1
1 02142U 66031A   25169.04228623  .00000077  00000-0  33761-4 0  9993
2 02142  35.0438 160.7446 0007206 316.2863  43.7254 14.34572677 98767
Epoch: 2025-06-18T01:00Z
TLE epoch observation values (Epoch: 2025-06-18T01:00:53.53Z)
Latitude
0.00002°
Longitude
-121.00841°
Altitude
771.718 km
Speed
7.472 km/s
True Right ascension
10h 42m 58s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-3.91075°
Longitude
-132.65174°
Altitude
771.491 km
Speed
7.473 km/s
Apparent Right ascension
07h 14m 56s
Apparent Declination
-32° 48' 60"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
14:32:39
Azimuth
253.398° W
Elevation
-34.205°
Doppler factor
1
Orbital elements
Apogee altitude
784.761 km
Perigee altitude
774.446 km
Semi-major axis
7,157.741 km
Eccentricity
0.00072
Inclination
35.0438°
RAAN
160.7446°
Arg. of periapsis
316.2863°
True anomaly
Unknown
Mean anomaly
43.7254°
Eccentric anomaly
Unknown
Mean motion
3.58409 °/min
Orbital period
100.44 mins
BSTAR
0.000033761
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Other satellites on launch #31 in the year 1966 (1966-04-08 UTC)

OAO 1 Visibility forecast

Observer location: undefined°, undefined°

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.
9 mins2025-06-19 04:00:37.528Z234.609° WSW2025-06-19 04:05:37.528Z153.133° SSE33.39°2025-06-19 04:09:37.528Z100.547° ESE
8 mins2025-06-19 05:47:37.528Z250.759° W2025-06-19 05:50:37.528Z201.461° SSW37.071°2025-06-19 05:55:37.528Z111.837° ESE
8 mins2025-06-19 07:33:37.528Z251.275° W2025-06-19 07:36:37.528Z206.58° SW27.668°2025-06-19 07:41:37.528Z138.772° SSE
5 mins2025-06-20 01:39:37.528Z181.699° SSW2025-06-20 01:41:37.528Z157.194° SSE16.598°2025-06-20 01:44:37.528Z119.384° SE
8 mins2025-06-20 03:24:37.528Z221.602° SW2025-06-20 03:27:37.528Z166.643° S32.582°2025-06-20 03:32:37.528Z98.205° ESE
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