Showing default

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.

Loading next visibility...

Iframe embed code

<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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

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: 4 hours ago

TLE from 4 hours ago

0 OV2-1
1  1641U 65082C   26052.48531043  .00000315  00000-0  64721-4 0  9999
2  1641  32.2954 177.7469 0018901 258.2505 101.6020 14.54757254200439

Epoch: 2026-02-21T11:38Z

TLE epoch observation values (Epoch: 2026-02-21T11:38:50.821Z)

Latitude

-0°

Longitude

-148.37208°

Altitude

711.542 km

Speed

7.501 km/s

True Right ascension

11h 50m 59s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

18:58:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

727.116 km

Perigee altitude

700.307 km

Semi-major axis

7,091.849 km

Eccentricity

0.00189

Inclination

32.2954°

RAAN

177.7469°

Arg. of periapsis

258.2505°

True anomaly

101.81406°

Mean anomaly

101.602°

Eccentric anomaly

101.70804°

Mean motion

3.63416 °/min

Orbital period

99.06 mins

BSTAR

0.000064721

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

TITAN 3C TRANSTAGE DEB, 3727 (Decayed)

TITAN 3C TRANSTAGE DEB, 1821 (Decayed)

TITAN 3C TRANSTAGE DEB, 1647 (Decayed)

TITAN 3C TRANSTAGE DEB, 1681 (Decayed)

TITAN 3C TRANSTAGE DEB, 2158 (Decayed)

TITAN 3C TRANSTAGE DEB, 3376 (Decayed)

TITAN 3C TRANSTAGE DEB, 3481 (Decayed)

TITAN 3C TRANSTAGE DEB, 1830 (Decayed)

TITAN 3C TRANSTAGE DEB, 1679 (Decayed)

TITAN 3C TRANSTAGE DEB, 1980 (Decayed)

TITAN 3C TRANSTAGE DEB, 1892 (Decayed)

TITAN 3C TRANSTAGE DEB, 1913 (Decayed)

TITAN 3C TRANSTAGE DEB, 3362 (Decayed)

TITAN 3C TRANSTAGE DEB, 2795 (Decayed)

TITAN 3C TRANSTAGE DEB, 1856 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

OV2-1 Visibility forecast

Loading observer location...
Set Observer location

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	2026-02-21 17:04:22.099Z	243.994° WSW	2026-02-21 17:07:22.099Z	206.719° SW	18.731°	2026-02-21 17:11:22.099Z	154.997° SSE
6 mins	2026-02-22 12:38:22.099Z	207.297° SW	2026-02-22 12:40:22.099Z	174.937° S	24.583°	2026-02-22 12:44:22.099Z	114.392° SE
7 mins	2026-02-22 14:22:22.099Z	233.493° WSW	2026-02-22 14:25:22.099Z	177.139° S	29.874°	2026-02-22 14:29:22.099Z	119.294° SE

Items per page:

1–3 of 3 items

of 1 page

Co-orbital & Co-planar RSOs

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

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

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

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

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: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2026-02-21T11:38:50.821Z)

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: 4 hours ago