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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1641 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Northrop
Mission
Non-operational spacecraft
Bus & Motor
OV2, Unknown motor
Mass
170 kg wet, 170 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 OV2-1
1 1641U 65082C 25311.66441576 .00000494 00000-0 10612-3 0 9994
2 1641 32.2964 74.8843 0018469 38.5087 321.6873 14.54665877185011Epoch: 2025-11-07T15:56Z
TLE epoch observation values (Epoch: 2025-11-07T15:56:45.521Z)
Latitude
-0.00004°
Longitude
148.58944°
Altitude
698.86 km
Speed
7.514 km/s
True Right ascension
04h 59m 32s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
09:48:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
727.107 km
Perigee altitude
700.91 km
Semi-major axis
7,092.145 km
Eccentricity
0.00185
Inclination
32.2964°
RAAN
74.8843°
Arg. of periapsis
38.5087°
True anomaly
321.55586°
Mean anomaly
321.6873°
Eccentric anomaly
321.6216°
Mean motion
3.63393 °/min
Orbital period
99.07 mins
BSTAR
0.00010612
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Other satellites on launch #82 in the year 1965 (1965-10-15 UTC)
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.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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-11-08 13:40:17.152Z | 230.875° WSW | 2025-11-08 13:44:17.152Z | 162.62° S | 27.957° | 2025-11-08 13:48:17.152Z | 111.176° ESE |
| 7 mins | 2025-11-08 15:25:17.152Z | 239.383° WSW | 2025-11-08 15:28:17.152Z | 187.919° SSW | 27.192° | 2025-11-08 15:32:17.152Z | 130.052° SE |
| 4 mins | 2025-11-08 17:11:17.152Z | 219.672° SW | 2025-11-08 17:12:17.152Z | 205.744° SW | 15.779° | 2025-11-08 17:15:17.152Z | 167.646° S |
| 6 mins | 2025-11-09 12:43:17.152Z | 213.027° SW | 2025-11-09 12:45:17.152Z | 178.82° S | 25.89° | 2025-11-09 12:49:17.152Z | 114.786° SE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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