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OV2-1, 1641

Orbit data source: Space-Track

OV2-1, 1641 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Fri, 15 Oct 1965 UTC via a TITAN IIIC 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/1641?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/1641?theme=dark&initialShowStats=false

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Identifier

1641, 1965-082C

Orbit

LEO

Country

Related business

United States Space Force (US)

Manufacturer

Northrop

Mission

Non-operational spacecraft

Bus & Motor

OV2, Unknown motor

Mass

170 kg wet, 170 kg dry

Launch date (UTC)

1965-10-15 (60 years ago)

Launch vehicle

TITAN IIIC

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 21 hours ago

TLE from 21 hours ago

0 OV2-1
1 01641U 65082C   26033.40791306  .00000363  00000-0  76005-4 0  9991
2 01641  32.2966 289.0152 0018224  88.7253 271.5481 14.54743835197659

Epoch: 2026-02-02T09:47Z

TLE epoch observation values (Epoch: 2026-02-02T09:47:23.688Z)

Latitude

0.00002°

Longitude

9.5629°

Altitude

708.542 km

Speed

7.504 km/s

True Right ascension

19h 16m 03s

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

08:23:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

726.679 km

Perigee altitude

700.831 km

Semi-major axis

7,091.892 km

Eccentricity

0.00182

Inclination

32.2966°

RAAN

289.0152°

Arg. of periapsis

88.7253°

True anomaly

271.33933°

Mean anomaly

271.5481°

Eccentric anomaly

271.44372°

Mean motion

3.63413 °/min

Orbital period

99.06 mins

BSTAR

0.000076005

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Other satellites on launch #82 in the year 1965 (1965-10-15 UTC)

TITAN 3C TRANSTAGE DEB, 1978 (Decayed)

TITAN 3C TRANSTAGE DEB, 1972 (Decayed)

TITAN 3C TRANSTAGE DEB, 2080 (Decayed)

TITAN 3C TRANSTAGE DEB, 3386

TITAN 3C TRANSTAGE DEB, 3488

TITAN 3C TRANSTAGE DEB, 1668

TITAN 3C TRANSTAGE DEB, 1722

TITAN 3C TRANSTAGE DEB, 1646

TITAN 3C TRANSTAGE DEB, 4907

TITAN 3C TRANSTAGE DEB, 1680

TITAN 3C TRANSTAGE DEB, 1824 (Decayed)

TITAN 3C TRANSTAGE DEB, 1671

TITAN 3C TRANSTAGE DEB, 3464 (Decayed)

TITAN 3C TRANSTAGE DEB, 3497 (Decayed)

TITAN 3C TRANSTAGE DEB, 1979 (Decayed)

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OV2-1 Visibility forecast

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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	2026-02-03 20:37:11.100Z	210.553° SW	2026-02-03 20:41:11.100Z	153.955° SSE	20.783°	2026-02-03 20:44:11.100Z	114.87° SE
7 mins	2026-02-03 22:22:11.100Z	229.429° WSW	2026-02-03 22:25:11.100Z	173.264° S	29.118°	2026-02-03 22:29:11.100Z	115.198° SE
6 mins	2026-02-04 00:07:11.100Z	232.19° WSW	2026-02-04 00:09:11.100Z	197.24° SSW	25.034°	2026-02-04 00:13:11.100Z	137.409° SSE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out OV2-1, 1641 on other resources

View OV2-1, 1641 on NASA - NSSDCA Website

View OV2-1, 1641 on Heavens-Above

View OV2-1, 1641 on Keep Track

View OV2-1, 1641 on Celestrak

View OV2-1, 1641 on Gunter's Space Page

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

OV2-1, 1641

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-02-02T09:47:23.688Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #82 in the year 1965 (1965-10-15 UTC)

OV2-1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out OV2-1, 1641 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago