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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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<iframe src="https://www.satcat.com/sats-embedded/2142?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/2142?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2142, 1966-031A

Orbit

LEO

Last TLE update

19 hours ago

Origin

National Aeronautics and Space Administration (NASA) (US)

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 19 hours ago

0 OAO 1
1 02142U 66031A   25182.05776887  .00000063  00000-0  28684-4 0  9992
2 02142  35.0459  89.6054 0006230  60.1082 300.0224 14.34574650100637

Epoch: 2025-07-01T01:23Z

TLE epoch observation values (Epoch: 2025-07-01T01:23:11.23Z)

Latitude

-0.00001°

Longitude

149.44991°

Altitude

773.207 km

Speed

7.471 km/s

True Right ascension

05h 58m 25s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

35.03155°

Longitude

-131.03003°

Altitude

772.944 km

Speed

7.475 km/s

Apparent Right ascension

14h 51m 08s

Apparent Declination

0° 09' 46"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

07:49:18

Azimuth

79.812° E

Elevation

-11.689°

Doppler factor

Orbital elements

Apogee altitude

784.056 km

Perigee altitude

775.137 km

Semi-major axis

7,157.734 km

Eccentricity

0.00062

Inclination

35.0459°

RAAN

89.6054°

Arg. of periapsis

60.1082°

True anomaly

Unknown

Mean anomaly

300.0224°

Eccentric anomaly

Unknown

Mean motion

3.5841 °/min

Orbital period

100.44 mins

BSTAR

0.000028684

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Other satellites on launch #31 in the year 1966 (1966-04-08 UTC)

ATLAS AGENA D R/B, 2144

ATLAS AGENA D DEB, 2145 (Decayed)

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 mins	2025-07-01 21:39:16.272Z	219.56° SW	2025-07-01 21:44:16.272Z	150.184° SSE	26.844°	2025-07-01 21:48:16.272Z	100.852° ESE
8 mins	2025-07-01 23:26:16.272Z	242.043° WSW	2025-07-01 23:29:16.272Z	189.912° SSW	37.088°	2025-07-01 23:34:16.272Z	103.563° ESE
8 mins	2025-07-02 01:12:16.272Z	252.671° W	2025-07-02 01:15:16.272Z	201.704° SSW	33.913°	2025-07-02 01:20:16.272Z	123.753° SE
5 mins	2025-07-02 02:59:16.272Z	234.568° WSW	2025-07-02 03:01:16.272Z	206.467° SW	19.17°	2025-07-02 03:04:16.272Z	167.946° S

Authenticating...

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Check out OAO 1, 2142 on other resources

View OAO 1, 2142 on NASA - NSSDCA Website

View OAO 1, 2142 on Heavens-Above

View OAO 1, 2142 on Keep Track

View OAO 1, 2142 on Celestrak

View OAO 1, 2142 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.