COSMOS 1261 DEB, 35507

Orbit data source: Space-Track

COSMOS 1261 DEB, 35507 is space debris originally from a launch on Tue, 31 Mar 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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Identifier
35507, 1981-031N
Orbit
Molniya
Last TLE update
3 days ago
Origin
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
1981-03-31 (44 years ago)
Launch vehicle
Unknown
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history

TLE from 3 days ago
0 COSMOS 1261 DEB
1 35507U 81031N   25179.47724695 -.00001088  00000-0 -85256-3 0  9999
2 35507  63.2610 353.0960 7333226  39.5608 355.6346  2.01862556 91280
Epoch: 2025-06-28T11:27Z
TLE epoch observation values (Epoch: 2025-06-28T11:27:14.136Z)
Latitude
-0.00021°
Longitude
-95.58302°
Altitude
1,445.92 km
Speed
9.319 km/s
True Right ascension
23h 32m 09s
True Declination
0° 00' 01"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-33.75259°
Longitude
-115.66703°
Altitude
4,246.293 km
Speed
7.747 km/s
Apparent Right ascension
22h 10m 31s
Apparent Declination
-68° 24' 08"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
22:12:52
Azimuth
180.229° SSW
Elevation
-18.319°
Doppler factor
1
Orbital elements
Apogee altitude
39,460.03 km
Perigee altitude
674.216 km
Semi-major axis
26,445.26 km
Eccentricity
0.73332
Inclination
63.261°
RAAN
353.096°
Arg. of periapsis
39.5608°
True anomaly
Unknown
Mean anomaly
355.6346°
Eccentric anomaly
Unknown
Mean motion
0.50469 °/min
Orbital period
713.31 mins
BSTAR
-0.00085256
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COSMOS 1261 DEB Visibility forecast

Observer location: undefined°, undefined°

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.
232 mins2025-07-01 23:06:24.701Z319.383° NNW2025-07-01 23:26:24.701Z246.604° WSW42.731°2025-07-02 02:58:24.701Z213.253° SW
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