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
11 hours 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 11 hours ago
0 COSMOS 1261 DEB
1 35507U 81031N   25187.40379780 -.00001474  00000-0 -78431-2 0  9997
2 35507  63.2290 351.9120 7335575  39.6008 355.6468  2.01844603 91449
Epoch: 2025-07-06T09:41Z
TLE epoch observation values (Epoch: 2025-07-06T09:41:28.129Z)
Latitude
-0.00013°
Longitude
-78.13564°
Altitude
1,439.624 km
Speed
9.323 km/s
True Right ascension
23h 27m 26s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-63.03266°
Longitude
-175.11115°
Altitude
18,026.087 km
Speed
4.197 km/s
Apparent Right ascension
17h 58m 47s
Apparent Declination
-60° 19' 08"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
08:20:02
Azimuth
144.888° SSE
Elevation
-60.157°
Doppler factor
1
Orbital elements
Apogee altitude
39,468.965 km
Perigee altitude
668.423 km
Semi-major axis
26,446.831 km
Eccentricity
0.73356
Inclination
63.229°
RAAN
351.912°
Arg. of periapsis
39.6008°
True anomaly
Unknown
Mean anomaly
355.6468°
Eccentric anomaly
Unknown
Mean motion
0.50464 °/min
Orbital period
713.38 mins
BSTAR
-0.0078431
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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.
259 mins2025-07-06 21:59:14.794Z323.019° NNW2025-07-06 22:17:14.794Z238.629° WSW44.637°2025-07-07 02:18:14.794Z206.596° SW
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