COSMOS 1275 DEB, 39958
Orbit data source: Space-Track
COSMOS 1275 DEB, 39958 is space debris in LEO originally from a launch on Thu, 04 Jun 1981 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). 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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39958 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: 1 week ago
TLE from 1 week ago
0 COSMOS 1275 DEB
1 39958U 81053NU 26191.34116963 .00000725 00000-0 72668-3 0 9999
2 39958 83.0250 197.0934 0089020 34.7543 30.5958 13.74650077605902Epoch: 2026-07-10T08:11Z
TLE epoch observation values (Epoch: 2026-07-10T08:11:17.056Z)
Latitude
65.03051°
Longitude
161.15258°
Altitude
937.887 km
Speed
7.417 km/s
True Right ascension
14h 08m 58s
True Declination
64° 54' 07"
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
09:19:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,045.572 km
Perigee altitude
914.567 km
Semi-major axis
7,358.207 km
Eccentricity
0.0089
Inclination
83.025°
RAAN
197.0934°
Arg. of periapsis
34.7543°
True anomaly
31.12002°
Mean anomaly
30.5958°
Eccentric anomaly
30.8574°
Mean motion
3.43863 °/min
Orbital period
104.69 mins
BSTAR
0.00072668
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Other satellites on launch #53 in the year 1981 (1981-06-04 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 1275 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-07-16 22:59:53.750Z | 103.555° ESE | 2026-07-16 23:01:53.750Z | 81.737° E | 14.342° | 2026-07-16 23:04:53.750Z | 50.434° ENE |
| 10 mins | 2026-07-17 00:41:53.750Z | 195.864° SSW | 2026-07-17 00:46:53.750Z | 291.164° WNW | 43.224° | 2026-07-17 00:51:53.750Z | 1.22° NNE |
| 4 mins | 2026-07-17 09:56:53.750Z | 55.025° ENE | 2026-07-17 09:57:53.750Z | 65.177° ENE | 13.492° | 2026-07-17 10:00:53.750Z | 93.866° ESE |
| 10 mins | 2026-07-17 11:39:53.750Z | 352.713° N | 2026-07-17 11:43:53.750Z | 346.234° N | 44.464° | 2026-07-17 11:49:53.750Z | 175.725° S |
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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