COSMOS 397 DEB, 5091
Orbit data source: Space-Track
COSMOS 397 DEB, 5091 is space debris in LEO originally from a launch on Thu, 25 Feb 1971 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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5091 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.3 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 COSMOS 397 DEB
1 05091U 71015S 25349.94776687 .00002431 00000-0 55334-3 0 9999
2 05091 65.7062 298.6229 0461092 107.0169 258.1958 14.08212061677785Epoch: 2025-12-15T22:44Z
TLE epoch observation values (Epoch: 2025-12-15T22:44:47.057Z)
Latitude
-0.00004°
Longitude
-127.41221°
Altitude
950.379 km
Speed
7.335 km/s
True Right ascension
19h 54m 29s
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
11:30:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,197.929 km
Perigee altitude
530.071 km
Semi-major axis
7,242.137 km
Eccentricity
0.04611
Inclination
65.7062°
RAAN
298.6229°
Arg. of periapsis
107.0169°
True anomaly
253.09086°
Mean anomaly
258.1958°
Eccentric anomaly
255.63652°
Mean motion
3.52162 °/min
Orbital period
102.23 mins
BSTAR
0.00055334
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Other satellites on launch #15 in the year 1971 (1971-02-25 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 397 DEB 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-12-16 21:02:43.879Z | 135.659° SSE | 2025-12-16 21:04:43.879Z | 110.645° ESE | 14.807° | 2025-12-16 21:06:43.879Z | 83.866° E |
| 8 mins | 2025-12-16 22:45:43.879Z | 225.33° WSW | 2025-12-16 22:49:43.879Z | 311.978° NW | 40.746° | 2025-12-16 22:53:43.879Z | 22.238° NNE |
| 7 mins | 2025-12-17 07:41:43.879Z | 317.299° NNW | 2025-12-17 07:44:43.879Z | 227.299° WSW | 40.185° | 2025-12-17 07:48:43.879Z | 163.648° S |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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