COSMOS 2508, 40921
Orbit data source: Space-Track
COSMOS 2508, 40921 is a payload satellite owned by VVKO VKS (CIS) in LEO that was launched on Wed, 23 Sep 2015 UTC via an ROKOT 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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Edit Public Description
| Identifier | |
| Orbit | LEO |
| Last TLE update | 12 hours ago |
| Origin | |
| Manufacturer | Resehetnev ISS |
| Mission | Operational Defense Communications |
| Bus & Motor | STRELA-3M, Unknown motor |
| Mass | 280 kg wet, 280 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Shape & HBR | Cyl + 1 Ant, 7 m |
| Radar Cross Section | 1.583 m², Large (>1 m²) |
Expand to show TLE details & history
TLE from 12 hours ago
0 COSMOS 2508
1 40921U 15050B 25077.58007093 .00000048 00000-0 27425-3 0 9995
2 40921 82.4937 1.9765 0013198 301.9361 58.0434 12.42892039430241Epoch: 2025-03-18T13:55Z
Definitive object data (Epoch: 2025-03-18T13:55:18.128Z)
| Latitude | -0.00008° |
| Longitude | -23.22956° |
| Altitude | 1,491.576 km |
| Speed | 7.121 km/s |
| True Right ascension | 00h 07m 54s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | 39.27082° |
| Longitude | 150.29588° |
| Altitude | 1,509.556 km |
| Speed | 7.109 km/s |
| Apparent Right ascension | 14h 46m 34s |
| Apparent Declination | 8° 02' 28" |
| Sunlit | Object is in full shadow |
Visualization observer readout
| Local Sidereal Time | 07:03:06 |
| Azimuth | 66.657° ENE |
| Elevation | -13.981° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 1,502.105 km |
| Perigee altitude | 1,481.332 km |
| Semi-major axis | 7,869.856 km |
| Eccentricity | 0.0013198 |
| Inclination | 82.4937° |
| RAAN | 1.9765° |
| Arg. of periapsis | 301.9361° |
| True anomaly | 58.17183° |
| Mean anomaly | 58.0434° |
| Eccentric anomaly | 58.1076° |
| Mean motion | 3.1088 °/min |
| BSTAR | 0.00027425 |
| Orbital period | 115.8 mins |
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Other satellites on launch #50 in the year 2015 (2015-09-23 UTC)
| COSMOS 2507, 40920 |
| COSMOS 2509, 40922 |
| BREEZE-KM R/B, 40923 |
COSMOS 2508 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. |
|---|---|---|---|---|---|---|---|
| 16 mins | 2025-03-19 05:59:01.413Z | 2.648° NNE | 2025-03-19 06:07:01.413Z | 74.231° E | 37.521° | 2025-03-19 06:15:01.413Z | 148.771° SSE |
| 14 mins | 2025-03-19 07:57:01.413Z | 331.705° NNW | 2025-03-19 08:04:01.413Z | 269.308° W | 29.613° | 2025-03-19 08:11:01.413Z | 214.922° SW |
| 15 mins | 2025-03-19 19:00:01.413Z | 163.938° S | 2025-03-19 19:07:01.413Z | 86.036° E | 40.537° | 2025-03-19 19:15:01.413Z | 15.658° NNE |
| 13 mins | 2025-03-19 20:58:01.413Z | 238.184° WSW | 2025-03-19 21:04:01.413Z | 289.514° WNW | 26.545° | 2025-03-19 21:11:01.413Z | 347.001° N |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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