COSMOS 397 DEB, 5277
Orbit data source: Space-Track
COSMOS 397 DEB, 5277 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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5277 intel report (Beta)
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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, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 COSMOS 397 DEB
1 5277U 71015BE 26092.61724507 .00001314 00000-0 57472-3 0 9993
2 5277 65.7319 69.9509 0914885 331.7341 23.6773 13.01104717252102Epoch: 2026-04-02T14:48Z
TLE epoch observation values (Epoch: 2026-04-02T14:48:49.974Z)
Latitude
-0°
Longitude
16.77952°
Altitude
631.622 km
Speed
7.847 km/s
True Right ascension
04h 39m 48s
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
06:22:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,954.795 km
Perigee altitude
557.863 km
Semi-major axis
7,634.466 km
Eccentricity
0.09149
Inclination
65.7319°
RAAN
69.9509°
Arg. of periapsis
331.7341°
True anomaly
28.37201°
Mean anomaly
23.6773°
Eccentric anomaly
25.97298°
Mean motion
3.25368 °/min
Orbital period
110.64 mins
BSTAR
0.00057472
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-04-03 02:05:27.060Z | 281.533° WNW | 2026-04-03 02:09:27.060Z | 324.157° NNW | 21.723° | 2026-04-03 02:15:27.060Z | 13.9° NNE |
| 4 mins | 2026-04-03 04:06:27.060Z | 346.524° N | 2026-04-03 04:07:27.060Z | 353.564° N | 11.803° | 2026-04-03 04:10:27.060Z | 13.155° NNE |
| 11 mins | 2026-04-03 06:02:27.060Z | 355.683° N | 2026-04-03 06:06:27.060Z | 22.815° NE | 17.463° | 2026-04-03 06:13:27.060Z | 63.73° ENE |
| 19 mins | 2026-04-03 07:55:27.060Z | 340.471° N | 2026-04-03 08:04:27.060Z | 54.096° ENE | 36.176° | 2026-04-03 08:14:27.060Z | 118.839° SE |
| 19 mins | 2026-04-03 09:50:27.060Z | 320.35° NNW | 2026-04-03 09:59:27.060Z | 237.435° WSW | 41.314° | 2026-04-03 10:09:27.060Z | 172.019° S |
| 8 mins | 2026-04-03 11:48:27.060Z | 282.243° WNW | 2026-04-03 11:51:27.060Z | 265.683° W | 14.016° | 2026-04-03 11:56:27.060Z | 239.004° WSW |
| 11 mins | 2026-04-04 00:09:27.060Z | 214.349° SW | 2026-04-04 00:13:27.060Z | 296.596° NW | 44.747° | 2026-04-04 00:20:27.060Z | 29.361° 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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