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: 2 days ago
TLE from 2 days ago
0 OV2-1
1 1641U 65082C 25337.26238112 .00000531 00000-0 11451-3 0 9992
2 1641 32.2972 285.6118 0018914 266.1736 93.6747 14.54690586188746Epoch: 2025-12-03T06:17Z
TLE epoch observation values (Epoch: 2025-12-03T06:17:49.728Z)
Latitude
-0.00003°
Longitude
118.81886°
Altitude
709.925 km
Speed
7.503 km/s
True Right ascension
19h 02m 26s
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
03:56:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
727.342 km
Perigee altitude
700.514 km
Semi-major axis
7,092.065 km
Eccentricity
0.00189
Inclination
32.2972°
RAAN
285.6118°
Arg. of periapsis
266.1736°
True anomaly
93.89096°
Mean anomaly
93.6747°
Eccentric anomaly
93.78283°
Mean motion
3.63399 °/min
Orbital period
99.06 mins
BSTAR
0.00011451
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-12-05 22:45:00.895Z | 174.335° S | 2025-12-05 22:47:00.895Z | 149.753° SSE | 12.917° | 2025-12-05 22:49:00.895Z | 126.541° SE |
| 7 mins | 2025-12-06 00:28:00.895Z | 214.285° SW | 2025-12-06 00:31:00.895Z | 164.297° S | 25.625° | 2025-12-06 00:35:00.895Z | 110.503° ESE |
| 7 mins | 2025-12-06 02:12:00.895Z | 238.492° WSW | 2025-12-06 02:15:00.895Z | 189.622° SSW | 29.626° | 2025-12-06 02:19:00.895Z | 123.48° SE |
| 6 mins | 2025-12-06 03:57:00.895Z | 236.999° WSW | 2025-12-06 04:00:00.895Z | 191.041° SSW | 21.59° | 2025-12-06 04:03:00.895Z | 150.876° SSE |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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