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COSMOS 2167, 21781

Orbit data source: Space-Track

COSMOS 2167, 21781 is a payload satellite owned by UNKS RF (CIS) in LEO that was launched on Tue, 12 Nov 1991 UTC via a TSIKLON-3 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
21781, 1991-077C
Orbit
LEO
Country
Flag of CISCIS
Related business
Manufacturer
NPO PM
Mission
Defense Communications
Bus & Motor
STRELA-3, Unknown motor
Mass
225 kg wet, 225 kg dry
Launch date (UTC)
1991-11-12 (34 years ago)
Launch vehicle
TSIKLON-3
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl, 0.8 m
Radar Cross Section
1.257 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago
0 COSMOS 2167
1 21781U 91077C   26053.96187727  .00000027  00000-0  87356-4 0  9998
2 21781  82.6079 313.6218 0006940 350.0042  21.1890 12.64287627581516
Epoch: 2026-02-22T23:05Z
TLE epoch observation values (Epoch: 2026-02-22T23:05:06.196Z)
Latitude
11.08238°
Longitude
175.93234°
Altitude
1,402.245 km
Speed
7.162 km/s
True Right ascension
21h 00m 16s
True Declination
11° 01' 23"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
N/A
Visualization observer readout
Local Sidereal Time
08:40:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,408.014 km
Perigee altitude
1,397.214 km
Semi-major axis
7,780.751 km
Eccentricity
0.00069
Inclination
82.6079°
RAAN
313.6218°
Arg. of periapsis
350.0042°
True anomaly
21.21777°
Mean anomaly
21.189°
Eccentric anomaly
21.20338°
Mean motion
3.16236 °/min
Orbital period
113.84 mins
BSTAR
0.000087356
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