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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

1 day 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 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

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)

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	2025-06-19 04:00:37.528Z	234.609° WSW	2025-06-19 04:05:37.528Z	153.133° SSE	33.39°	2025-06-19 04:09:37.528Z	100.547° ESE
8 mins	2025-06-19 05:47:37.528Z	250.759° W	2025-06-19 05:50:37.528Z	201.461° SSW	37.071°	2025-06-19 05:55:37.528Z	111.837° ESE
8 mins	2025-06-19 07:33:37.528Z	251.275° W	2025-06-19 07:36:37.528Z	206.58° SW	27.668°	2025-06-19 07:41:37.528Z	138.772° SSE
5 mins	2025-06-20 01:39:37.528Z	181.699° SSW	2025-06-20 01:41:37.528Z	157.194° SSE	16.598°	2025-06-20 01:44:37.528Z	119.384° SE
8 mins	2025-06-20 03:24:37.528Z	221.602° SW	2025-06-20 03:27:37.528Z	166.643° S	32.582°	2025-06-20 03:32:37.528Z	98.205° ESE

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.