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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

15 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 15 hours ago

0 OAO 1
1 02142U 66031A   25183.44979667  .00000073  00000-0  32421-4 0  9992
2 02142  35.0460  81.9972 0006184  72.2040 287.9322 14.34574942100837

Epoch: 2025-07-02T10:47Z

TLE epoch observation values (Epoch: 2025-07-02T10:47:42.432Z)

Latitude

-0.00001°

Longitude

-0.66034°

Altitude

774.074 km

Speed

7.47 km/s

True Right ascension

05h 27m 59s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

31.06105°

Longitude

54.51431°

Altitude

772.145 km

Speed

7.475 km/s

Apparent Right ascension

06h 06m 09s

Apparent Declination

-3° 32' 28"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:52:21

Azimuth

284.98° WNW

Elevation

-22.446°

Doppler factor

Orbital elements

Apogee altitude

784.022 km

Perigee altitude

775.169 km

Semi-major axis

7,157.733 km

Eccentricity

0.00062

Inclination

35.046°

RAAN

81.9972°

Arg. of periapsis

72.204°

True anomaly

Unknown

Mean anomaly

287.9322°

Eccentric anomaly

Unknown

Mean motion

3.5841 °/min

Orbital period

100.44 mins

BSTAR

0.000032421

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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.
7 mins	2025-07-03 02:20:23.660Z	249.909° W	2025-07-03 02:23:23.660Z	212.099° SW	20.943°	2025-07-03 02:27:23.660Z	159.268° S
6 mins	2025-07-03 20:26:23.660Z	195.173° SSW	2025-07-03 20:29:23.660Z	147.894° SSE	23.134°	2025-07-03 20:32:23.660Z	108.71° ESE
8 mins	2025-07-03 22:11:23.660Z	235.681° WSW	2025-07-03 22:14:23.660Z	181.484° SSW	36.096°	2025-07-03 22:19:23.660Z	100.973° ESE
8 mins	2025-07-03 23:57:23.660Z	251.476° W	2025-07-04 00:00:23.660Z	196.298° SSW	36.003°	2025-07-04 00:05:23.660Z	117.327° SE
7 mins	2025-07-04 01:43:23.660Z	246.581° WSW	2025-07-04 01:46:23.660Z	203.233° SW	23.05°	2025-07-04 01:50:23.660Z	152.057° SSE

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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.