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COSMOS 839, 9011

Orbit data source: Space-Track

COSMOS 839, 9011 is a payload satellite owned by PKO (CIS) in LEO that was launched on Thu, 08 Jul 1976 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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Identifier
9011, 1976-067A
Orbit
LEO
Last TLE update
22 hours ago
Origin
Manufacturer
Yuzhnoe
Mission
Defense Target
Bus & Motor
ROMB, Unknown motor
Mass
1,045 kg wet, 925 kg dry
Launch date (UTC)
1976-07-08 (49 years ago)
Launch vehicle
KOSMOS 11K65M
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl, 4 m
Radar Cross Section
7.854 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 22 hours ago
0 COSMOS 839
1 09011U 76067A   25167.52464370 -.00000066  00000-0 -43890-4 0  9991
2 09011  65.8539 250.5634 0694993  69.5100 297.9063 12.32885029215054
Epoch: 2025-06-16T12:35Z
TLE epoch observation values (Epoch: 2025-06-16T12:35:29.215Z)
Latitude
0.00003°
Longitude
156.65754°
Altitude
1,312.571 km
Speed
7.303 km/s
True Right ascension
16h 42m 15s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
43.71785°
Longitude
-50.36194°
Altitude
1,253.258 km
Speed
7.364 km/s
Apparent Right ascension
05h 52m 23s
Apparent Declination
9° 39' 58"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
21:21:31
Azimuth
56.518° ENE
Elevation
-20.783°
Doppler factor
1
Orbital elements
Apogee altitude
2,085.512 km
Perigee altitude
985.525 km
Semi-major axis
7,913.656 km
Eccentricity
0.0695
Inclination
65.8539°
RAAN
250.5634°
Arg. of periapsis
69.51°
True anomaly
Unknown
Mean anomaly
297.9063°
Eccentric anomaly
Unknown
Mean motion
3.08303 °/min
Orbital period
116.77 mins
BSTAR
-0.00004389
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COSMOS 839 Visibility forecast

Observer location: undefined°, undefined°

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.
11 mins2025-06-17 14:24:14.139Z353.49° N2025-06-17 14:29:14.139Z42.609° NE21.326°2025-06-17 14:35:14.139Z93.159° ESE
14 mins2025-06-17 16:24:14.139Z326.895° NNW2025-06-17 16:30:14.139Z245.871° WSW44.656°2025-06-17 16:38:14.139Z156.682° SSE
5 mins2025-06-17 18:28:14.139Z269.423° W2025-06-17 18:30:14.139Z253.407° W13.722°2025-06-17 18:33:14.139Z231.98° WSW
7 mins2025-06-18 05:36:14.139Z142.33° SSE2025-06-18 05:39:14.139Z110.977° ESE19.752°2025-06-18 05:43:14.139Z67.256° ENE
11 mins2025-06-18 07:34:14.139Z228.732° WSW2025-06-18 07:39:14.139Z303.92° NW40.506°2025-06-18 07:45:14.139Z23.323° NE
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