OKEAN 3, 21397
Orbit data source: Space-Track
OKEAN 3, 21397 is a Commonwealth of Independent States-origin payload satellite in LEO that was launched on Tue, 04 Jun 1991 UTC via a Tsiklon-3 launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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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OKEAN 3 details
| NORAD ID | 21397 |
| COSPAR ID | |
| Orbit | LEO |
| Last TLE update | 13 hours ago |
| Origin | |
| Manufacturer | Yuzhnoe |
| Bus | Okean |
| Motor | Unknown |
| Mass | 1,907 kg wet, 1,907 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Radar Cross Section | 9.1 m², Large (>1 m²) |
Predictive object data (real-time)
| Latitude | -17.22424° |
| Longitude | -131.7489° |
| Altitude | 581.413 km |
| Speed | 7.567 km/s |
| Apparent Right ascension | 14h 36m 34s |
| Apparent Declination | -29° 15' 31" |
| Sunlit | Object is in daylight |
Predictive observer data (real-time)
| Local Sidereal Time | 04:05:15 |
| Azimuth | 66.446° ENE |
| Elevation | -68.95° |
| Doppler factor | 1 |
Orbital elements
| Apogee | 578.836 km |
| Perigee | 558.498 km |
| Semi-major axis | 6,946.804 km |
| Eccentricity | 0.0014638 |
| Inclination | 82.5177° |
| RAAN | 205.8282° |
| Arg. of periapsis | 237.9678° |
| True anomaly | 122.15449° |
| Mean anomaly | 122.0124° |
| Mean motion | 3.74857 °/min |
| BSTAR | 0.00024932 |
| Period | 96.04 mins |
Definitive object data (Epoch: 2024-07-07T03:16:37.923Z)
| Latitude | -0.00001° |
| Longitude | -128.91874° |
| Altitude | 580.132 km |
| Speed | 7.567 km/s |
| True Right ascension | 13h 43m 18s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in daylight at TLE epoch |
TLE from 13 hours ago
0 OKEAN 3
1 21397U 91039A 24189.13655004 .00003009 00000-0 24932-3 0 9997
2 21397 82.5177 205.8282 0014638 237.9678 122.0124 14.98455144794462Epoch: 2024-07-07T03:16Z
No data available
Other satellites on launch #39 in the year 1991 (1991-06-04 UTC)
| OKEAN 3, 21397 |
| SL-14 R/B, 21398 |
| OKEAN 3 DEB, 21842 (Decayed) |
| OKEAN 3 DEB, 25505 (Decayed) |
OKEAN 3 Visibility forecast
Observer location: 39.9160978°, -105.1181434
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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