COSMOS 446, 5549
Orbit data source: Space-Track
COSMOS 446, 5549 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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5549 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 446
1 5549U 71086C 26171.23680106 .00000007 00000-0 13624-3 0 9994
2 5549 74.0277 113.5630 0082922 93.6335 267.4206 12.54461286504154Epoch: 2026-06-20T05:40Z
TLE epoch observation values (Epoch: 2026-06-20T05:40:59.611Z)
Latitude
-0.00002°
Longitude
119.8603°
Altitude
1,451.733 km
Speed
7.135 km/s
True Right ascension
07h 34m 15s
True Declination
0° 00' 00"
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
23:09:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,508.58 km
Perigee altitude
1,378.859 km
Semi-major axis
7,821.857 km
Eccentricity
0.00829
Inclination
74.0277°
RAAN
113.563°
Arg. of periapsis
93.6335°
True anomaly
266.47183°
Mean anomaly
267.4206°
Eccentric anomaly
266.94617°
Mean motion
3.13746 °/min
Orbital period
114.74 mins
BSTAR
0.00013624
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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 446 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-22 19:04:47.696Z | 109.878° ESE | 2026-06-22 19:07:47.696Z | 87.427° E | 13.536° | 2026-06-22 19:10:47.696Z | 65.076° ENE |
| 14 mins | 2026-06-22 20:56:47.696Z | 191.513° SSW | 2026-06-22 21:03:47.696Z | 69.613° E | 44.548° | 2026-06-22 21:10:47.696Z | 21.214° NNE |
| 10 mins | 2026-06-22 22:56:47.696Z | 267.188° W | 2026-06-22 23:01:47.696Z | 310.021° NW | 20.88° | 2026-06-22 23:06:47.696Z | 351.302° N |
| 8 mins | 2026-06-23 05:05:47.696Z | 20.057° NNE | 2026-06-23 05:08:47.696Z | 44.414° NE | 16.999° | 2026-06-23 05:13:47.696Z | 84.028° E |
| 15 mins | 2026-06-23 07:00:47.696Z | 343.617° N | 2026-06-23 07:07:47.696Z | 69.439° E | 44.63° | 2026-06-23 07:15:47.696Z | 158.27° S |
| 9 mins | 2026-06-23 08:59:47.696Z | 302.222° NW | 2026-06-23 09:03:47.696Z | 269.839° W | 18.245° | 2026-06-23 09:08:47.696Z | 230.973° WSW |
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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