COSMOS 2251 DEB, 33933

Orbit data source: Space-Track

COSMOS 2251 DEB, 33933 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

33933, 1993-036EN

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1993-06-16 (33 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.2 m

Radar Cross Section

Small (<0.1 m²)

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Last TLE update: 14 hours ago

TLE from 14 hours ago

0 COSMOS 2251 DEB
1 33933U 93036EN  26035.51229507  .00001357  00000-0  48430-3 0  9997
2 33933  74.0905 322.1190 0072518 316.5408  43.0040 14.33653263885554

Epoch: 2026-02-04T12:17Z

TLE epoch observation values (Epoch: 2026-02-04T12:17:42.294Z)

Latitude

-0.00007°

Longitude

3.01494°

Altitude

744.368 km

Speed

7.502 km/s

True Right ascension

21h 28m 28s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

03:53:08

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

829.056 km

Perigee altitude

725.278 km

Semi-major axis

7,155.304 km

Eccentricity

0.00725

Inclination

74.0905°

RAAN

322.119°

Arg. of periapsis

316.5408°

True anomaly

43.57455°

Mean anomaly

43.004°

Eccentric anomaly

43.2889°

Mean motion

3.58592 °/min

Orbital period

100.39 mins

BSTAR

0.0004843

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Other satellites on launch #36 in the year 1993 (1993-06-16 UTC)

COSMOS 2251 DEB, 36433 (Decayed)

COSMOS 2251 DEB, 34617 (Decayed)

COSMOS 2251 DEB, 36438 (Decayed)

COSMOS 2251 DEB, 47058 (Decayed)

COSMOS 2251 DEB, 35039 (Decayed)

COSMOS 2251 DEB, 34337 (Decayed)

COSMOS 2251 DEB, 35467 (Decayed)

COSMOS 2251 DEB, 34318 (Decayed)

COSMOS 2251 DEB, 34883

COSMOS 2251 DEB, 35454 (Decayed)

COSMOS 2251 DEB, 34627 (Decayed)

COSMOS 2251 DEB, 37991 (Decayed)

COSMOS 2251 DEB, 34399 (Decayed)

COSMOS 2251 DEB, 35824

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COSMOS 2251 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.
9 mins	2026-02-05 05:35:40.269Z	359.755° N	2026-02-05 05:40:40.269Z	73.51° E	30.559°	2026-02-05 05:44:40.269Z	127.155° SE
7 mins	2026-02-05 07:19:40.269Z	303.998° NW	2026-02-05 07:22:40.269Z	256.352° W	25.736°	2026-02-05 07:26:40.269Z	205.703° SW
9 mins	2026-02-05 20:14:40.269Z	204.753° SW	2026-02-05 20:18:40.269Z	298.902° NW	44.188°	2026-02-05 20:23:40.269Z	15.662° NNE

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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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Check out COSMOS 2251 DEB, 33933 on other resources

View COSMOS 2251 DEB, 33933 on Heavens-Above

View COSMOS 2251 DEB, 33933 on Keep Track

View COSMOS 2251 DEB, 33933 on Celestrak

View COSMOS 2251 DEB, 33933 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

COSMOS 2251 DEB, 33933

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-02-04T12:17:42.294Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #36 in the year 1993 (1993-06-16 UTC)

COSMOS 2251 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 2251 DEB, 33933 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago