COSMOS 651, 7291
Orbit data source: Space-Track
COSMOS 651, 7291 is a payload satellite owned by VMF (CIS) in LEO that was launched on Wed, 15 May 1974 UTC via a TSIKLON-2 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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7291 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
Kometa
Mission
Spacecraft
Bus & Motor
US-A REACTOR, Unknown motor
Mass
3,800 kg wet, 1,150 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: 2 days ago
TLE from 2 days ago
0 COSMOS 651
1 7291U 74029A 26171.40687316 -.00000069 00000-0 16726-4 0 9995
2 7291 64.9722 305.3073 0025500 38.7645 321.5243 13.93094155651166Epoch: 2026-06-20T09:45Z
TLE epoch observation values (Epoch: 2026-06-20T09:45:53.841Z)
Latitude
0.00001°
Longitude
-109.78898°
Altitude
905.194 km
Speed
7.407 km/s
True Right ascension
20h 21m 13s
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
23:07:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
935.016 km
Perigee altitude
897.814 km
Semi-major axis
7,294.552 km
Eccentricity
0.00255
Inclination
64.9722°
RAAN
305.3073°
Arg. of periapsis
38.7645°
True anomaly
321.34204°
Mean anomaly
321.5243°
Eccentric anomaly
321.43321°
Mean motion
3.48374 °/min
Orbital period
103.34 mins
BSTAR
0.000016726
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Other satellites on launch #29 in the year 1974 (1974-05-15 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 651 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 | 2026-06-22 17:24:39.991Z | 359.33° N | 2026-06-22 17:28:39.991Z | 42.978° NE | 16.997° | 2026-06-22 17:31:39.991Z | 75.026° E |
| 11 mins | 2026-06-22 19:10:39.991Z | 330.228° NNW | 2026-06-22 19:15:39.991Z | 57.812° ENE | 44.816° | 2026-06-22 19:21:39.991Z | 147.088° SSE |
| 4 mins | 2026-06-22 20:59:39.991Z | 273.342° WNW | 2026-06-22 21:01:39.991Z | 251.547° W | 14.332° | 2026-06-22 21:03:39.991Z | 230.601° WSW |
| 4 mins | 2026-06-23 08:33:39.991Z | 118.967° SE | 2026-06-23 08:34:39.991Z | 107.909° ESE | 13.963° | 2026-06-23 08:37:39.991Z | 76.473° E |
| 10 mins | 2026-06-23 10:15:39.991Z | 213.739° SW | 2026-06-23 10:20:39.991Z | 316.584° NNW | 44.775° | 2026-06-23 10:25:39.991Z | 29.761° NE |
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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