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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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<iframe src="https://www.satcat.com/sats-embedded/1571?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/1571?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

1571, 1965-070B

Orbit

LEO

Last TLE update

16 hours ago

Origin

Federal Space Agency of Russia (Roscosmos) (CIS)

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, 0.8 m

Radar Cross Section

0.731 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 16 hours ago

0 COSMOS 81
1 01571U 65070B   25128.56655766 -.00000088  00000-0  42419-4 0  9997
2 01571  56.0595 211.0541 0085970 264.2464 212.9091 12.48861952722075

Epoch: 2025-05-08T13:35Z

Definitive object data (Epoch: 2025-05-08T13:35:50.581Z)

Latitude

47.9945°

Longitude

-87.58598°

Altitude

1,531.808 km

Speed

7.079 km/s

True Right ascension

22h 52m 02s

True Declination

47° 50' 25"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-44.15056°

Longitude

-0.78875°

Altitude

1,424.982 km

Speed

7.176 km/s

Apparent Right ascension

03h 18m 21s

Apparent Declination

-44° 10' 35"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:45:10

Azimuth

248.486° W

Elevation

-72.248°

Doppler factor

Orbital elements

Apogee altitude

1,536.544 km

Perigee altitude

1,401.619 km

Semi-major axis

7,847.219 km

Eccentricity

0.008597

Inclination

56.0595°

RAAN

211.0541°

Arg. of periapsis

264.2464°

True anomaly

212.37866°

Mean anomaly

212.9091°

Eccentric anomaly

212.6434°

Mean motion

3.12226 °/min

BSTAR

0.000042419

Orbital period

115.3 mins

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Other satellites on launch #70 in the year 1965 (1965-09-03 UTC)

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.
14 mins	2025-05-09 06:21:28.137Z	174.729° S	2025-05-09 06:28:28.137Z	116.392° SE	28.679°	2025-05-09 06:35:28.137Z	62.37° ENE
17 mins	2025-05-09 08:20:28.137Z	234.665° WSW	2025-05-09 08:28:28.137Z	333.221° NNW	43.79°	2025-05-09 08:37:28.137Z	44.029° NE
15 mins	2025-05-09 10:23:28.137Z	286.079° WNW	2025-05-09 10:30:28.137Z	345.424° N	29.014°	2025-05-09 10:38:28.137Z	45.477° ENE
14 mins	2025-05-09 12:27:28.137Z	319.342° NNW	2025-05-09 12:33:28.137Z	8.99° NNE	27.21°	2025-05-09 12:41:28.137Z	70.433° E
16 mins	2025-05-09 14:28:28.137Z	319.922° NNW	2025-05-09 14:36:28.137Z	45.698° ENE	40.981°	2025-05-09 14:44:28.137Z	115.369° SE
15 mins	2025-05-09 16:29:28.137Z	300.897° NW	2025-05-09 16:36:28.137Z	238.066° WSW	34.92°	2025-05-09 16:44:28.137Z	170.283° S
9 mins	2025-05-10 05:26:28.137Z	141.256° SSE	2025-05-10 05:30:28.137Z	111.249° ESE	17.386°	2025-05-10 05:35:28.137Z	76.554° E

Authenticating...

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Check out COSMOS 81, 1571 on other resources

View COSMOS 81, 1571 on NASA - NSSDCA Website

View COSMOS 81, 1571 on Heavens-Above

View COSMOS 81, 1571 on Keep Track

View COSMOS 81, 1571 on Celestrak

View COSMOS 81, 1571 on Gunter's Space Page

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