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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1585 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
OKB-10
Mission
Defense Communications
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
Poly, 0.4 m
Radar Cross Section
0.731 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 COSMOS 87
1 01585U 65073B 25260.48489515 -.00000069 00000-0 16405-3 0 9994
2 01585 56.0608 296.6991 0204670 21.6334 91.9854 12.47458564731728Epoch: 2025-09-17T11:38Z
TLE epoch observation values (Epoch: 2025-09-17T11:38:14.94Z)
Latitude
48.36217°
Longitude
-103.39746°
Altitude
1,489.822 km
Speed
7.12 km/s
True Right ascension
04h 31m 17s
True Declination
48° 12' 26"
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
23:18:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,635.695 km
Perigee altitude
1,314.236 km
Semi-major axis
7,853.103 km
Eccentricity
0.02047
Inclination
56.0608°
RAAN
296.6991°
Arg. of periapsis
21.6334°
True anomaly
94.32661°
Mean anomaly
91.9854°
Eccentric anomaly
93.15629°
Mean motion
3.11875 °/min
Orbital period
115.43 mins
BSTAR
0.00016405
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Other satellites on launch #73 in the year 1965 (1965-09-18 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 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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2025-09-18 06:29:31.218Z | 265.497° W | 2025-09-18 06:36:31.218Z | 340.134° N | 33.811° | 2025-09-18 06:43:31.218Z | 39.736° NE |
| 12 mins | 2025-09-18 08:33:31.218Z | 311.222° NW | 2025-09-18 08:38:31.218Z | 354.702° N | 24.248° | 2025-09-18 08:45:31.218Z | 51.691° ENE |
| 15 mins | 2025-09-18 10:35:31.218Z | 324.412° NNW | 2025-09-18 10:41:31.218Z | 19.385° NNE | 32.533° | 2025-09-18 10:50:31.218Z | 94.133° ESE |
| 16 mins | 2025-09-18 12:36:31.218Z | 311.796° NW | 2025-09-18 12:43:31.218Z | 219.069° SW | 44.523° | 2025-09-18 12:52:31.218Z | 143.616° SSE |
| 10 mins | 2025-09-18 14:38:31.218Z | 278.636° WNW | 2025-09-18 14:43:31.218Z | 240.985° WSW | 19.007° | 2025-09-18 14:48:31.218Z | 206.762° SW |
| 13 mins | 2025-09-19 03:32:31.218Z | 182.588° SSW | 2025-09-19 03:38:31.218Z | 120.515° SE | 32.427° | 2025-09-19 03:45:31.218Z | 58.319° ENE |
| 14 mins | 2025-09-19 05:32:31.218Z | 247.779° W | 2025-09-19 05:38:31.218Z | 319.528° NNW | 40.7° | 2025-09-19 05:46:31.218Z | 41.442° NE |
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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