COSMOS 2251 DEB, 34544

Orbit data source: Space-Track

COSMOS 2251 DEB, 34544 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

34544, 1993-036UE

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, 0.1 m

Radar Cross Section

Small (<0.1 m²)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 COSMOS 2251 DEB
1 34544U 93036UE  26110.37761840  .00000511  00000-0  48759-3 0  9990
2 34544  73.9182 355.7539 0381154   0.3940 115.3616 13.54904623846241

Epoch: 2026-04-20T09:03Z

TLE epoch observation values (Epoch: 2026-04-20T09:03:46.229Z)

Latitude

56.74845°

Longitude

165.39991°

Altitude

1,193.352 km

Speed

7.199 km/s

True Right ascension

09h 59m 14s

True Declination

56° 35' 59"

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

15:53:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,335.189 km

Perigee altitude

768.785 km

Semi-major axis

7,430.124 km

Eccentricity

0.03812

Inclination

73.9182°

RAAN

355.7539°

Arg. of periapsis

0.394°

True anomaly

119.22644°

Mean anomaly

115.3616°

Eccentric anomaly

117.30217°

Mean motion

3.38882 °/min

Orbital period

106.23 mins

BSTAR

0.00048759

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

COSMOS 2251 DEB, 36373 (Decayed)

COSMOS 2251 DEB, 34413

COSMOS 2251 DEB, 37304 (Decayed)

COSMOS 2251 DEB, 34957 (Decayed)

COSMOS 2251 DEB, 33793

COSMOS 2251 DEB, 36003 (Decayed)

COSMOS 2251 DEB, 35062

COSMOS 2251 DEB, 35673 (Decayed)

COSMOS 2251 DEB, 33810 (Decayed)

COSMOS 2251 DEB, 35672 (Decayed)

COSMOS 2251 DEB, 35772 (Decayed)

COSMOS 2251 DEB, 35467 (Decayed)

COSMOS 2251 DEB, 35470 (Decayed)

COSMOS 2251 DEB, 37122 (Decayed)

COSMOS 2251 DEB, 33815 (Decayed)

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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.
8 mins	2026-04-21 16:30:27.267Z	150.249° SSE	2026-04-21 16:34:27.267Z	92.522° ESE	25.339°	2026-04-21 16:38:27.267Z	43.615° NE
9 mins	2026-04-21 18:18:27.267Z	239.807° WSW	2026-04-21 18:22:27.267Z	302.291° NW	29.54°	2026-04-21 18:27:27.267Z	2.489° NNE
9 mins	2026-04-22 01:48:27.267Z	19.184° NNE	2026-04-22 01:52:27.267Z	58.127° ENE	20.208°	2026-04-22 01:57:27.267Z	99.833° ESE
14 mins	2026-04-22 03:35:27.267Z	338.846° N	2026-04-22 03:41:27.267Z	231.749° WSW	44.796°	2026-04-22 03:49:27.267Z	166.466° S
6 mins	2026-04-22 05:26:27.267Z	288.031° WNW	2026-04-22 05:28:27.267Z	271.342° WNW	14.688°	2026-04-22 05:32:27.267Z	239.946° WSW

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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, 34544 on other resources

View COSMOS 2251 DEB, 34544 on Heavens-Above

View COSMOS 2251 DEB, 34544 on Keep Track

View COSMOS 2251 DEB, 34544 on Celestrak

View COSMOS 2251 DEB, 34544 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, 34544

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-04-20T09:03:46.229Z)

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, 34544 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago