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COSMOS 81, 1571

Orbit data source: Space-Track

COSMOS 81, 1571 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Fri, 03 Sep 1965 UTC via a KOSMOS 65S3 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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Identifier
1571, 1965-070B
Orbit
LEO
Last TLE update
15 hours ago
Origin
Manufacturer
OKB-10
Mission
Defense Communications
Bus & Motor
STRELA-1 11F610, Unknown motor
Mass
50 kg wet, 50 kg dry
Launch date (UTC)
1965-09-03 (60 years ago)
Launch vehicle
KOSMOS 65S3
Launch site
Tyuratam Missile And Space Complex (TTMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Poly, 0.4 m
Radar Cross Section
0.731 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 15 hours ago
0 COSMOS 81
1 01571U 65070B   25200.74744679 -.00000095  00000-0  11063-5 0  9990
2 01571  56.0617  16.6756 0088005   2.8951   9.6879 12.48862768731099
Epoch: 2025-07-19T17:56Z
TLE epoch observation values (Epoch: 2025-07-19T17:56:19.402Z)
Latitude
10.53712°
Longitude
176.96961°
Altitude
1,401.507 km
Speed
7.192 km/s
True Right ascension
01h 35m 19s
True Declination
10° 28' 50"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-11.01327°
Longitude
160.61731°
Altitude
1,406.275 km
Speed
7.187 km/s
Apparent Right ascension
03h 02m 47s
Apparent Declination
-49° 36' 41"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
22:03:29
Azimuth
137.937° SSE
Elevation
-21.017°
Doppler factor
1
Orbital elements
Apogee altitude
1,538.137 km
Perigee altitude
1,400.019 km
Semi-major axis
7,847.215 km
Eccentricity
0.0088
Inclination
56.0617°
RAAN
16.6756°
Arg. of periapsis
2.8951°
True anomaly
9.85946°
Mean anomaly
9.6879°
Eccentric anomaly
9.7735°
Mean motion
3.12227 °/min
Orbital period
115.3 mins
BSTAR
0.0000011063
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Other satellites on launch #70 in the year 1965 (1965-09-03 UTC)
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