COSMOS 450, 5553
Orbit data source: Space-Track
COSMOS 450, 5553 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Wed, 13 Oct 1971 UTC via a KOSMOS 11K65M launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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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5553 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
OKB-10
Mission
Spacecraft
Bus & Motor
STRELA-1 11F625, Unknown motor
Mass
60 kg wet, 60 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: 2 days ago
TLE from 2 days ago
0 COSMOS 450
1 5553U 71086G 26171.46653405 -.00000013 00000-0 17328-4 0 9990
2 5553 74.0295 336.2764 0042572 80.9393 309.0836 12.42700778480818Epoch: 2026-06-20T11:11Z
TLE epoch observation values (Epoch: 2026-06-20T11:11:48.541Z)
Latitude
28.43873°
Longitude
-91.4844°
Altitude
1,477.146 km
Speed
7.137 km/s
True Right ascension
23h 00m 35s
True Declination
28° 18' 29"
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
23:07:50
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,526.528 km
Perigee altitude
1,459.509 km
Semi-major axis
7,871.156 km
Eccentricity
0.00426
Inclination
74.0295°
RAAN
336.2764°
Arg. of periapsis
80.9393°
True anomaly
308.70365°
Mean anomaly
309.0836°
Eccentric anomaly
308.89375°
Mean motion
3.10803 °/min
Orbital period
115.83 mins
BSTAR
0.000017328
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Other satellites on launch #86 in the year 1971 (1971-10-13 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 450 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 | 2026-06-22 13:24:33.906Z | 243.315° WSW | 2026-06-22 13:31:33.906Z | 300.469° NW | 28.031° | 2026-06-22 13:38:33.906Z | 0.64° NNE |
| 6 mins | 2026-06-22 19:40:33.906Z | 25.381° NE | 2026-06-22 19:42:33.906Z | 40.15° NE | 13.929° | 2026-06-22 19:46:33.906Z | 69.177° E |
| 15 mins | 2026-06-22 21:36:33.906Z | 349.884° N | 2026-06-22 21:43:33.906Z | 76.108° E | 41.757° | 2026-06-22 21:51:33.906Z | 147.492° SSE |
| 12 mins | 2026-06-22 23:35:33.906Z | 311.602° NW | 2026-06-22 23:40:33.906Z | 269.467° W | 24.762° | 2026-06-22 23:47:33.906Z | 214.044° SW |
| 13 mins | 2026-06-23 10:37:33.906Z | 149.66° SSE | 2026-06-23 10:43:33.906Z | 96.633° ESE | 28.754° | 2026-06-23 10:50:33.906Z | 38.335° 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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