COSMOS 256, 3576
Orbit data source: Space-Track
COSMOS 256, 3576 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Sat, 30 Nov 1968 UTC via a KOSMOS 11K65M launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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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3576 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
OKB-10
Mission
Spacecraft
Bus & Motor
KAUR-1 11F621, Unknown motor
Mass
800 kg wet, 800 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: 5 hours ago
TLE from 5 hours ago
0 COSMOS 256
1 03576U 68106A 26165.59374623 .00000235 00000-0 65924-3 0 9990
2 03576 74.0490 95.0907 0032937 98.6928 75.3913 13.16883217765357Epoch: 2026-06-14T14:14Z
TLE epoch observation values (Epoch: 2026-06-14T14:14:59.674Z)
Latitude
5.26204°
Longitude
156.94904°
Altitude
1,192.37 km
Speed
7.261 km/s
True Right ascension
18h 14m 21s
True Declination
5° 13' 57"
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
05:44:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,219.347 km
Perigee altitude
1,169.463 km
Semi-major axis
7,572.542 km
Eccentricity
0.00329
Inclination
74.049°
RAAN
95.0907°
Arg. of periapsis
98.6928°
True anomaly
75.75691°
Mean anomaly
75.3913°
Eccentric anomaly
75.57407°
Mean motion
3.29367 °/min
Orbital period
109.3 mins
BSTAR
0.00065924
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Other satellites on launch #106 in the year 1968 (1968-11-30 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 256 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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2026-06-14 20:45:37.928Z | 203.242° SW | 2026-06-14 20:52:37.928Z | 286.09° WNW | 44.331° | 2026-06-14 20:59:37.928Z | 16.221° NNE |
| 6 mins | 2026-06-14 22:42:37.928Z | 285.8° WNW | 2026-06-14 22:45:37.928Z | 312.575° NW | 14.79° | 2026-06-14 22:48:37.928Z | 338.793° N |
| 4 mins | 2026-06-15 04:33:37.928Z | 33.914° NE | 2026-06-15 04:35:37.928Z | 51.531° ENE | 13.009° | 2026-06-15 04:37:37.928Z | 68.545° E |
| 12 mins | 2026-06-15 06:22:37.928Z | 348.52° N | 2026-06-15 06:27:37.928Z | 43.935° NE | 42.606° | 2026-06-15 06:34:37.928Z | 151.18° SSE |
| 8 mins | 2026-06-15 08:15:37.928Z | 298.67° NW | 2026-06-15 08:18:37.928Z | 269.256° W | 19.418° | 2026-06-15 08:23:37.928Z | 223.899° SW |
| 6 mins | 2026-06-15 18:41:37.928Z | 112.742° SE | 2026-06-15 18:43:37.928Z | 95.123° ESE | 14.652° | 2026-06-15 18:47:37.928Z | 60.585° ENE |
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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