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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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: 13 hours ago
TLE from 13 hours ago
0 COSMOS 209
1 3158U 68023A 26163.83169926 -.00000025 00000-0 44930-4 0 9990
2 3158 65.3303 206.1185 0049739 250.8515 108.7167 13.97934259970402Epoch: 2026-06-12T19:57Z
TLE epoch observation values (Epoch: 2026-06-12T19:57:38.816Z)
Latitude
-0.00001°
Longitude
5.55127°
Altitude
914.705 km
Speed
7.389 km/s
True Right ascension
13h 44m 28s
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
18:59:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
935.716 km
Perigee altitude
863.319 km
Semi-major axis
7,277.655 km
Eccentricity
0.00497
Inclination
65.3303°
RAAN
206.1185°
Arg. of periapsis
250.8515°
True anomaly
109.25544°
Mean anomaly
108.7167°
Eccentric anomaly
108.98618°
Mean motion
3.49588 °/min
Orbital period
102.98 mins
BSTAR
0.00004493
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-13 11:56:36.349Z | 0.276° NNE | 2026-06-13 12:00:36.349Z | 46.995° ENE | 19.602° | 2026-06-13 12:03:36.349Z | 81.061° E |
| 10 mins | 2026-06-13 13:42:36.349Z | 325.653° NNW | 2026-06-13 13:46:36.349Z | 285.382° WNW | 44.214° | 2026-06-13 13:52:36.349Z | 155.34° SSE |
| 6 mins | 2026-06-14 03:00:36.349Z | 133.776° SE | 2026-06-14 03:02:36.349Z | 110.421° ESE | 18.154° | 2026-06-14 03:06:36.349Z | 66.842° ENE |
| 10 mins | 2026-06-14 04:43:36.349Z | 221.99° SW | 2026-06-14 04:48:36.349Z | 317.437° NNW | 42.903° | 2026-06-14 04:53:36.349Z | 25.29° NE |
| 5 mins | 2026-06-14 06:33:36.349Z | 302.149° NW | 2026-06-14 06:35:36.349Z | 323.801° NNW | 15.059° | 2026-06-14 06:38:36.349Z | 354.895° N |
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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