COSMOS 2251 DEB, 36439

Orbit data source: Space-Track

COSMOS 2251 DEB, 36439 is space debris in LEO originally from a launch on Wed, 16 Jun 1993 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). The debris from Iridium 33, an American commercial communications satellite, has been tracked extensively since its accidental collision with the defunct Russian satellite Cosmos 2251 in 2009. This event, occurring at high speed in low Earth orbit (LEO), generated thousands of pieces of space debris, significantly increasing the risk of further collisions. The Iridium 33 debris cloud has impacted space traffic management and orbital debris mitigation strategies, making it a subject of ongoing study in space situational awareness.

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Identifier
36439, 1993-036BAN
Orbit
LEO
Last TLE update
2 days ago
Origin
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
1993-06-16 (32 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
Small (<0.1 m²)

Expand to show TLE details & history

TLE from 2 days ago
0 COSMOS 2251 DEB
1 36439U 93036BAN 25169.12374580  .00000509  00000-0  49687-3 0  9990
2 36439  73.9699 320.0875 0428709 327.9475  29.6192 13.47416633562204
Epoch: 2025-06-18T02:58Z
TLE epoch observation values (Epoch: 2025-06-18T02:58:11.637Z)
Latitude
-0.00001°
Longitude
8.92871°
Altitude
809.769 km
Speed
7.584 km/s
True Right ascension
21h 20m 20s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
40.07654°
Longitude
171.53114°
Altitude
1,405.018 km
Speed
7.007 km/s
Apparent Right ascension
07h 18m 32s
Apparent Declination
4° 59' 21"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
18:14:43
Azimuth
338.103° N
Elevation
-42.753°
Doppler factor
1
Orbital elements
Apogee altitude
1,399.216 km
Perigee altitude
759.785 km
Semi-major axis
7,457.638 km
Eccentricity
0.04287
Inclination
73.9699°
RAAN
320.0875°
Arg. of periapsis
327.9475°
True anomaly
Unknown
Mean anomaly
29.6192°
Eccentric anomaly
Unknown
Mean motion
3.37009 °/min
Orbital period
106.82 mins
BSTAR
0.00049687
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COSMOS 2251 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.
11 mins2025-06-20 10:18:09.360Z168.723° S2025-06-20 10:23:09.360Z111.354° ESE33.862°2025-06-20 10:29:09.360Z33.887° NE
9 mins2025-06-20 12:09:09.360Z253.486° W2025-06-20 12:13:09.360Z308.746° NW27.004°2025-06-20 12:18:09.360Z359.23° N
12 mins2025-06-20 19:41:09.360Z8.005° NNE2025-06-20 19:46:09.360Z55.263° ENE27.241°2025-06-20 19:53:09.360Z114.981° SE
15 mins2025-06-20 21:29:09.360Z333.05° NNW2025-06-20 21:36:09.360Z247.893° W42.195°2025-06-20 21:44:09.360Z177.382° S
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