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COSMOS 87, 1585

Orbit data source: Space-Track

COSMOS 87, 1585 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Sat, 18 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/1585?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/1585?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

1585, 1965-073B

Orbit

LEO

Country

CIS

Related business

Federal Space Agency of Russia (Roscosmos) (RU)

Manufacturer

OKB-10

Mission

Spacecraft

Bus & Motor

STRELA-1 11F610, Unknown motor

Mass

50 kg wet, 50 kg dry

Launch date (UTC)

1965-09-18 (61 years ago)

Launch vehicle

KOSMOS 65S3

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 COSMOS 87
1 01585U 65073B   26132.93514721 -.00000096  00000-0 -76077-5 0  9995
2 01585  56.0638  18.5074 0203385 340.3260 127.6148 12.47463020761353

Epoch: 2026-05-12T22:26Z

TLE epoch observation values (Epoch: 2026-05-12T22:26:36.718Z)

Latitude

51.46083°

Longitude

-66.05881°

Altitude

1,581.171 km

Speed

7.038 km/s

True Right ascension

09h 25m 11s

True Declination

51° 18' 38"

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

15:26:32

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,634.667 km

Perigee altitude

1,315.227 km

Semi-major axis

7,853.084 km

Eccentricity

0.02034

Inclination

56.0638°

RAAN

18.5074°

Arg. of periapsis

340.326°

True anomaly

129.43243°

Mean anomaly

127.6148°

Eccentric anomaly

128.52645°

Mean motion

3.11877 °/min

Orbital period

115.43 mins

BSTAR

-0.0000076077

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Other satellites on launch #73 in the year 1965 (1965-09-18 UTC)

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COSMOS 87 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.
13 mins	2026-05-13 17:11:47.622Z	172.376° S	2026-05-13 17:17:47.622Z	121.469° SE	26.501°	2026-05-13 17:24:47.622Z	63.722° ENE
16 mins	2026-05-13 19:10:47.622Z	233.99° WSW	2026-05-13 19:17:47.622Z	310.618° NW	43.951°	2026-05-13 19:26:47.622Z	43.97° NE
14 mins	2026-05-13 21:13:47.622Z	287.677° WNW	2026-05-13 21:19:47.622Z	340.593° N	28.634°	2026-05-13 21:27:47.622Z	44.026° NE
14 mins	2026-05-13 23:16:47.622Z	316.674° NNW	2026-05-13 23:23:47.622Z	14.658° NNE	27.195°	2026-05-13 23:30:47.622Z	67.599° E
17 mins	2026-05-14 01:18:47.622Z	321.005° NNW	2026-05-14 01:25:47.622Z	26.794° NE	40.91°	2026-05-14 01:35:47.622Z	116.347° SE
16 mins	2026-05-14 03:19:47.622Z	300.755° NW	2026-05-14 03:26:47.622Z	237.529° WSW	36.212°	2026-05-14 03:35:47.622Z	167.734° S

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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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Check out COSMOS 87, 1585 on other resources

View COSMOS 87, 1585 on NASA - NSSDCA Website

View COSMOS 87, 1585 on Heavens-Above

View COSMOS 87, 1585 on Keep Track

View COSMOS 87, 1585 on Celestrak

View COSMOS 87, 1585 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

COSMOS 87, 1585

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-05-12T22:26:36.718Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #73 in the year 1965 (1965-09-18 UTC)

COSMOS 87 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 87, 1585 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago