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 Civil Science
Bus & Motor
OV2, Unknown motor
Mass
170 kg wet, 170 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, Unknown HBR
Radar Cross Section
0.424 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 OV2-1
1 01641U 65082C 25256.07465528 .00000229 00000-0 45086-4 0 9990
2 01641 32.2972 39.0433 0018919 266.5358 93.3124 14.54614573176910Epoch: 2025-09-13T01:47Z
TLE epoch observation values (Epoch: 2025-09-13T01:47:30.216Z)
Latitude
0.00002°
Longitude
19.85419°
Altitude
710.088 km
Speed
7.503 km/s
True Right ascension
02h 36m 10s
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
09:37:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
727.593 km
Perigee altitude
700.757 km
Semi-major axis
7,092.312 km
Eccentricity
0.00189
Inclination
32.2972°
RAAN
39.0433°
Arg. of periapsis
266.5358°
True anomaly
93.5288°
Mean anomaly
93.3124°
Eccentric anomaly
93.4206°
Mean motion
3.6338 °/min
Orbital period
99.07 mins
BSTAR
0.000045086
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Other satellites on launch #82 in the year 1965 (1965-10-15 UTC)
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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 | 2025-09-13 18:48:10.662Z | 226.868° WSW | 2025-09-13 18:50:10.662Z | 201.099° SSW | 14.554° | 2025-09-13 18:52:10.662Z | 176.506° S |
| 4 mins | 2025-09-14 12:37:10.662Z | 180.213° SSW | 2025-09-14 12:39:10.662Z | 152.748° SSE | 16.175° | 2025-09-14 12:41:10.662Z | 126.975° SE |
| 7 mins | 2025-09-14 14:20:10.662Z | 221.555° SW | 2025-09-14 14:23:10.662Z | 170.341° S | 27.733° | 2025-09-14 14:27:10.662Z | 112.396° ESE |
| 8 mins | 2025-09-14 16:04:10.662Z | 242.033° WSW | 2025-09-14 16:07:10.662Z | 196.471° SSW | 28.566° | 2025-09-14 16:12:10.662Z | 123.065° 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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