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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1571 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
OKB-10
Mission
Spacecraft
Bus & Motor
STRELA-1 11F610, Unknown motor
Mass
50 kg wet, 50 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 COSMOS 81
1 01571U 65070B 25306.12696725 -.00000088 00000-0 46066-4 0 9999
2 01571 56.0584 92.8852 0089275 142.0696 28.7826 12.48864805744258Epoch: 2025-11-02T03:02Z
TLE epoch observation values (Epoch: 2025-11-02T03:02:49.970Z)
Latitude
7.132°
Longitude
-179.27689°
Altitude
1,408.405 km
Speed
7.185 km/s
True Right ascension
17h 52m 18s
True Declination
7° 05' 36"
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
19:29:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,539.126 km
Perigee altitude
1,399.014 km
Semi-major axis
7,847.207 km
Eccentricity
0.00893
Inclination
56.0584°
RAAN
92.8852°
Arg. of periapsis
142.0696°
True anomaly
29.28003°
Mean anomaly
28.7826°
Eccentric anomaly
29.03082°
Mean motion
3.12227 °/min
Orbital period
115.3 mins
BSTAR
0.000046066
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Other satellites on launch #70 in the year 1965 (1965-09-03 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 81 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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2025-11-03 10:53:50.105Z | 183.661° SSW | 2025-11-03 11:00:50.105Z | 126.706° SE | 32.192° | 2025-11-03 11:08:50.105Z | 58.536° ENE |
| 16 mins | 2025-11-03 12:53:50.105Z | 241.766° WSW | 2025-11-03 13:01:50.105Z | 337.572° N | 41.908° | 2025-11-03 13:09:50.105Z | 42.469° NE |
| 13 mins | 2025-11-03 14:57:50.105Z | 295.665° NW | 2025-11-03 15:03:50.105Z | 349.979° N | 26.733° | 2025-11-03 15:10:50.105Z | 44.997° NE |
| 13 mins | 2025-11-03 17:00:50.105Z | 322.356° NNW | 2025-11-03 17:06:50.105Z | 16.097° NNE | 26.84° | 2025-11-03 17:13:50.105Z | 73.023° E |
| 15 mins | 2025-11-03 19:01:50.105Z | 319.771° NNW | 2025-11-03 19:08:50.105Z | 43.39° NE | 42.534° | 2025-11-03 19:16:50.105Z | 121.419° SE |
| 13 mins | 2025-11-03 21:02:50.105Z | 294.524° NW | 2025-11-03 21:08:50.105Z | 237.628° WSW | 30.192° | 2025-11-03 21:15:50.105Z | 178.469° S |
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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