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). Payloads include a variety of satellites, spacecraft, and rockets 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)
OV1-4 details
| Identifier | |
| Orbit | LEO |
| Last TLE update | 14 hours ago |
| Origin | |
| Manufacturer | GD/Convair |
| Mission | Defense Science |
| Bus & Motor | OV1, Unknown motor |
| Mass | 87 kg wet, 87 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Shape & HBR | Domed Cyl, 1.4 m |
| Radar Cross Section | 0.946 m², Medium (>0.1 m² and < 1m²) |
Expand to show TLE details & history
TLE from 14 hours ago
0 OV1-4
1 02121U 66025A 24355.91492366 .00000421 00000-0 12366-3 0 9992
2 02121 144.5020 152.9377 0082717 87.7333 273.2816 13.87209927975664Epoch: 2024-12-20T21:57Z
Definitive object data (Epoch: 2024-12-20T21:57:29.404Z)
| Latitude | 0° |
| Longitude | 93.59159° |
| Altitude | 934.482 km |
| Speed | 7.388 km/s |
| True Right ascension | 10h 11m 45s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | 24.57925° |
| Longitude | 56.89406° |
| Altitude | 895.504 km |
| Speed | 7.43 km/s |
| Apparent Right ascension | 04h 35m 34s |
| Apparent Declination | -11° 54' 06" |
| Sunlit | Object is in full shadow |
Visualization observer readout
| Local Sidereal Time | 11:01:29 |
| Azimuth | 264.869° W |
| Elevation | -12.536° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 1,001.951 km |
| Perigee altitude | 880.86 km |
| Semi-major axis | 7,319.543 km |
| Eccentricity | 0.0082717 |
| Inclination | 144.502° |
| RAAN | 152.9377° |
| Arg. of periapsis | 87.7333° |
| True anomaly | 272.33477° |
| Mean anomaly | 273.2816° |
| Eccentric anomaly | 272.80824° |
| Mean motion | 3.46591 °/min |
| BSTAR | 0.00012366 |
| Orbital period | 103.87 mins |
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Other satellites on launch #25 in the year 1966 (1966-03-30 UTC)
| OV1-4, 2121 |
| OV1-5, 2122 |
| OV1-5 R/B, 2123 |
| OV1-4 R/B, 2124 |
| OV1-5 DEB, 3611 (Decayed) |
| OV1-5 DEB, 5361 |
| OV1-5 DEB, 5599 |
| OV1-5 DEB, 27880 |
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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2024-12-22 02:08:45.866Z | 109.425° ESE | 2024-12-22 02:12:45.866Z | 162.441° S | 20.232° | 2024-12-22 02:15:45.866Z | 199.302° SSW |
| 8 mins | 2024-12-22 03:47:45.866Z | 106.37° ESE | 2024-12-22 03:50:45.866Z | 164.307° S | 34.64° | 2024-12-22 03:55:45.866Z | 237.131° WSW |
| 8 mins | 2024-12-22 05:25:45.866Z | 107.327° ESE | 2024-12-22 05:28:45.866Z | 158.276° S | 39.424° | 2024-12-22 05:33:45.866Z | 256.057° W |
| 8 mins | 2024-12-22 07:03:45.866Z | 126.005° SE | 2024-12-22 07:07:45.866Z | 198.417° SSW | 35.551° | 2024-12-22 07:11:45.866Z | 261.257° W |
| 6 mins | 2024-12-22 08:43:45.866Z | 169.588° S | 2024-12-22 08:45:45.866Z | 198.494° SSW | 21.934° | 2024-12-22 08:49:45.866Z | 252.365° W |
Authenticating...
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