OV1-4, 2121
Orbit data source: Space-Track
OV1-4, 2121 is a payload satellite owned by USAF OAR (US) in LEO that was launched on Wed, 30 Mar 1966 UTC via an ATLAS D launch vehicle from the Air Force Western Test Range (AFWTR). 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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2121 intel report (Beta)
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Edit Public Description
Expand to show TLE details & history
TLE from 1 day ago
0 OV1-4
1 2121U 66025A 25108.54272464 .00000406 00000-0 11442-3 0 9990
2 2121 144.5042 29.1790 0083659 214.7416 144.7770 13.87251130992564
Epoch: 2025-04-18T13:01Z
Definitive object data (Epoch: 2025-04-18T13:01:31.408Z)
Latitude
0.00001°
Longitude
-13.10066°
Altitude
987.463 km
Speed
7.335 km/s
True Right ascension
01h 56m 42s
True Declination
0° 00' 00"
Sunlit
Visualization TLE readout
Latitude
19.79582°
Longitude
-36.32824°
Altitude
997.303 km
Speed
7.326 km/s
Apparent Right ascension
21h 36m 43s
Apparent Declination
-13° 08' 39"
Sunlit
Visualization observer readout
Local Sidereal Time
04:53:49
Azimuth
271.983° WNW
Elevation
-23.107°
Doppler factor
1
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Other satellites on launch #25 in the year 1966 (1966-03-30 UTC)
OV1-4 Visibility forecast
Observer location: undefined°, undefined°
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. |
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8 mins | 2025-04-20 10:29:16.844Z | 107.195° ESE | 2025-04-20 10:33:16.844Z | 160.35° S | 23.592° | 2025-04-20 10:37:16.844Z | 208.336° SW |
9 mins | 2025-04-20 12:07:16.844Z | 99.364° ESE | 2025-04-20 12:11:16.844Z | 162.587° S | 36.936° | 2025-04-20 12:16:16.844Z | 239.361° WSW |
10 mins | 2025-04-20 13:45:16.844Z | 105.359° ESE | 2025-04-20 13:49:16.844Z | 163.114° S | 40.451° | 2025-04-20 13:55:16.844Z | 260.21° W |
10 mins | 2025-04-20 15:23:16.844Z | 125.602° SE | 2025-04-20 15:28:16.844Z | 205.459° SW | 35.619° | 2025-04-20 15:33:16.844Z | 265.908° W |
7 mins | 2025-04-20 17:03:16.844Z | 166.599° S | 2025-04-20 17:06:16.844Z | 205.447° SW | 22.244° | 2025-04-20 17:10:16.844Z | 253.363° W |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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