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: 14 hours ago
TLE from 14 hours ago
0 COSMOS 209
1 03158U 68023A 26125.77240673 -.00000045 00000-0 30855-4 0 9993
2 03158 65.3318 305.7515 0050523 262.3478 97.1853 13.97931760965085Epoch: 2026-05-05T18:32Z
TLE epoch observation values (Epoch: 2026-05-05T18:32:15.941Z)
Latitude
0.00003°
Longitude
164.04264°
Altitude
907.717 km
Speed
7.396 km/s
True Right ascension
20h 23m 00s
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
16:34:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
936.295 km
Perigee altitude
862.757 km
Semi-major axis
7,277.663 km
Eccentricity
0.00505
Inclination
65.3318°
RAAN
305.7515°
Arg. of periapsis
262.3478°
True anomaly
97.75924°
Mean anomaly
97.1853°
Eccentric anomaly
97.47232°
Mean motion
3.49587 °/min
Orbital period
102.98 mins
BSTAR
0.000030855
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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 | 2026-05-06 13:33:25.135Z | 202.472° SSW | 2026-05-06 13:38:25.135Z | 82.469° E | 44.034° | 2026-05-06 13:43:25.135Z | 34.327° NE |
| 8 mins | 2026-05-06 15:21:25.135Z | 278.179° WNW | 2026-05-06 15:24:25.135Z | 312.579° NW | 20.281° | 2026-05-06 15:29:25.135Z | 7.249° NNE |
| 7 mins | 2026-05-06 20:49:25.135Z | 5.16° NNE | 2026-05-06 20:52:25.135Z | 38.765° NE | 17.748° | 2026-05-06 20:56:25.135Z | 81.069° E |
| 11 mins | 2026-05-06 22:34:25.135Z | 329.825° NNW | 2026-05-06 22:39:25.135Z | 64.73° ENE | 44.957° | 2026-05-06 22:45:25.135Z | 149.207° SSE |
| 4 mins | 2026-05-07 00:23:25.135Z | 269.066° W | 2026-05-07 00:24:25.135Z | 258.377° W | 13.539° | 2026-05-07 00:27:25.135Z | 227.853° WSW |
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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