COSMOS 2251 DEB, 40794

Orbit data source: Space-Track

COSMOS 2251 DEB, 40794 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

40794, 1993-036BVX

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 week ago

TLE from 1 week ago

0 COSMOS 2251 DEB
1 40794U 93036BVX 26122.48413565  .00052877  00000-0  36691-2 0  9990
2 40794  73.9718 197.3118 0013369 307.0295  72.6778 15.05243564640348

Epoch: 2026-05-02T11:37Z

TLE epoch observation values (Epoch: 2026-05-02T11:37:09.320Z)

Latitude

19.05604°

Longitude

168.28524°

Altitude

550.202 km

Speed

7.59 km/s

True Right ascension

13h 31m 54s

True Declination

18° 56' 49"

Sunlit

Object was in full shadow 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

01:36:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

557.572 km

Perigee altitude

539.052 km

Semi-major axis

6,926.449 km

Eccentricity

0.00134

Inclination

73.9718°

RAAN

197.3118°

Arg. of periapsis

307.0295°

True anomaly

72.82412°

Mean anomaly

72.6778°

Eccentric anomaly

72.75095°

Mean motion

3.76511 °/min

Orbital period

95.61 mins

BSTAR

0.0036691

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

COSMOS 2251 DEB, 34591 (Decayed)

COSMOS 2251 DEB, 35597 (Decayed)

COSMOS 2251 DEB, 34063 (Decayed)

COSMOS 2251 DEB, 34887 (Decayed)

COSMOS 2251 DEB, 35672 (Decayed)

COSMOS 2251 DEB, 37534 (Decayed)

COSMOS 2251 DEB, 34052 (Decayed)

COSMOS 2251 DEB, 37529 (Decayed)

COSMOS 2251 DEB, 34017 (Decayed)

COSMOS 2251 DEB, 36478 (Decayed)

COSMOS 2251 DEB, 37290 (Decayed)

COSMOS 2251 DEB, 37521 (Decayed)

COSMOS 2251 DEB, 35435

COSMOS 2251 DEB, 34335 (Decayed)

COSMOS 2251 DEB, 34134 (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.
7 mins	2026-05-10 04:37:54.655Z	190.919° SSW	2026-05-10 04:41:54.655Z	92.749° ESE	43.575°	2026-05-10 04:44:54.655Z	24.537° NE
6 mins	2026-05-10 14:38:54.655Z	353.397° N	2026-05-10 14:40:54.655Z	38.415° NE	41.007°	2026-05-10 14:44:54.655Z	151.037° SSE

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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, 40794 on other resources

View COSMOS 2251 DEB, 40794 on Heavens-Above

View COSMOS 2251 DEB, 40794 on Keep Track

View COSMOS 2251 DEB, 40794 on Celestrak

View COSMOS 2251 DEB, 40794 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, 40794

Orbit data source: Space-Track

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

TLE from 1 week ago

TLE epoch observation values (Epoch: 2026-05-02T11:37:09.320Z)

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, 40794 on other resources

Documentation

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