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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). Payloads include a variety of satellites, spacecraft, and rockets 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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COSMOS 81 details
Identifier
1571, 1965-070B
Orbit
LEO
Last TLE update12 hours ago
Origin
Flag of CISOKB-10 (CIS)
ManufacturerOKB-10
MissionDefense Communications
Bus & MotorSTRELA-1 11F610, Unknown motor
Mass50 kg wet, 50 kg dry
Launch date (UTC)
1965-09-03 (59 years ago)
Launch vehicle
KOSMOS 65S3
Launch site
Tyuratam Missile And Space Complex (TTMTR)
Object type
Payload
Rocket body
Debris
Shape & HBRPoly, 0.8 m
Radar Cross Section0.731 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 12 hours ago
0 COSMOS 81
1 01571U 65070B   25037.55693661 -.00000096  00000-0 -62107-5 0  9998
2 01571  56.0597  96.1384 0089373 141.0914   3.8235 12.48859774710700
Epoch: 2025-02-06T13:21Z
Definitive object data (Epoch: 2025-02-06T13:21:59.323Z)
Latitude28.49902°
Longitude-82.61081°
Altitude1,401.001 km
Speed7.195 km/s
True Right ascension16h 59m 16s
True Declination28° 22' 01"
Sunlit
Object was in daylight at TLE epoch
Visualization TLE readout
Latitude-1.1964°
Longitude-61.80412°
Altitude1,416.189 km
Speed7.178 km/s
Apparent Right ascension17h 11m 03s
Apparent Declination-19° 53' 57"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time03:14:14
Azimuth300.07° NW
Elevation-57.988°
Doppler factor1
Orbital elements
Apogee altitude1,539.224 km
Perigee altitude1,398.958 km
Semi-major axis7,847.228 km
Eccentricity0.0089373
Inclination56.0597°
RAAN96.1384°
Arg. of periapsis141.0914°
True anomaly3.89256°
Mean anomaly3.8235°
Eccentric anomaly3.85795°
Mean motion3.12226 °/min
BSTAR-0.0000062107
Orbital period115.3 mins
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COSMOS 81 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 mins2025-02-07 04:04:04.170Z153.706° SSE2025-02-07 04:09:04.170Z118.765° SE18.229°2025-02-07 04:15:04.170Z74.965° E
16 mins2025-02-07 06:01:04.170Z215.991° SW2025-02-07 06:09:04.170Z120.784° SE44.496°2025-02-07 06:17:04.170Z47.531° ENE
15 mins2025-02-07 08:03:04.170Z270.311° WNW2025-02-07 08:10:04.170Z332.112° NNW32.488°2025-02-07 08:18:04.170Z41.103° NE
13 mins2025-02-07 10:07:04.170Z311.078° NW2025-02-07 10:13:04.170Z0.569° NNE24.551°2025-02-07 10:20:04.170Z56.656° ENE
14 mins2025-02-07 12:09:04.170Z322.666° NNW2025-02-07 12:16:04.170Z30.79° NE34.441°2025-02-07 12:23:04.170Z96.32° ESE
15 mins2025-02-07 14:10:04.170Z308.479° NW2025-02-07 14:17:04.170Z223.082° SW42.55°2025-02-07 14:25:04.170Z151.247° SSE
5 mins2025-02-07 16:14:04.170Z261.509° W2025-02-07 16:16:04.170Z246.508° WSW13.162°2025-02-07 16:19:04.170Z224.86° SW
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