COSMOS 209, 3158
Orbit data source: Space-Track
COSMOS 209, 3158 is a payload satellite owned by TSKBM (CIS) in LEO that was launched on Fri, 22 Mar 1968 UTC via a TSIKLON-2A launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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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3158 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
TSKBM/KB1
Mission
Spacecraft
Bus & Motor
US-A REACTOR, Unknown motor
Mass
3,800 kg wet, 1,140 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 20 hours ago
TLE from 20 hours ago
0 COSMOS 209
1 03158U 68023A 25340.75225739 -.00000025 00000-0 44743-4 0 9994
2 03158 65.3327 338.4765 0046960 307.8414 51.8411 13.97918144944119Epoch: 2025-12-06T18:03Z
TLE epoch observation values (Epoch: 2025-12-06T18:03:15.038Z)
Latitude
0.00001°
Longitude
-8.11164°
Altitude
881.959 km
Speed
7.422 km/s
True Right ascension
22h 33m 54s
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
11:59:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
933.75 km
Perigee altitude
865.397 km
Semi-major axis
7,277.71 km
Eccentricity
0.0047
Inclination
65.3327°
RAAN
338.4765°
Arg. of periapsis
307.8414°
True anomaly
52.26576°
Mean anomaly
51.8411°
Eccentric anomaly
52.05328°
Mean motion
3.49584 °/min
Orbital period
102.98 mins
BSTAR
0.000044743
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Other satellites on launch #23 in the year 1968 (1968-03-22 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.COSMOS 209 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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-12-08 01:04:40.174Z | 186.338° SSW | 2025-12-08 01:09:40.174Z | 109.954° ESE | 37.902° | 2025-12-08 01:14:40.174Z | 42.689° NE |
| 8 mins | 2025-12-08 02:52:40.174Z | 268.224° W | 2025-12-08 02:55:40.174Z | 310.196° NW | 25.931° | 2025-12-08 03:00:40.174Z | 10.88° NNE |
| 4 mins | 2025-12-08 08:21:40.174Z | 17.146° NNE | 2025-12-08 08:23:40.174Z | 38.221° NE | 13.514° | 2025-12-08 08:25:40.174Z | 58.401° ENE |
| 11 mins | 2025-12-08 10:05:40.174Z | 337.934° N | 2025-12-08 10:10:40.174Z | 55.343° ENE | 40.906° | 2025-12-08 10:16:40.174Z | 135.133° SSE |
| 7 mins | 2025-12-08 11:53:40.174Z | 285.158° WNW | 2025-12-08 11:56:40.174Z | 246.735° WSW | 20.927° | 2025-12-08 12:00:40.174Z | 204.593° SW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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