COSMOS 2251 DEB, 33821

Orbit data source: Space-Track

COSMOS 2251 DEB, 33821 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/33821?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/33821?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

33821, 1993-036BN

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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 COSMOS 2251 DEB
1 33821U 93036BN  26178.14585297  .00043625  00000-0  10999-2 0  9993
2 33821  74.0255  83.0935 0033998  67.5675 292.9127 15.39056388780092

Epoch: 2026-06-27T03:30Z

TLE epoch observation values (Epoch: 2026-06-27T03:30:01.696Z)

Latitude

-0.00007°

Longitude

115.32221°

Altitude

442.661 km

Speed

7.652 km/s

True Right ascension

05h 32m 22s

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

00:24:28

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

469.613 km

Perigee altitude

423.208 km

Semi-major axis

6,824.548 km

Eccentricity

0.0034

Inclination

74.0255°

RAAN

83.0935°

Arg. of periapsis

67.5675°

True anomaly

292.55326°

Mean anomaly

292.9127°

Eccentric anomaly

292.73304°

Mean motion

3.84975 °/min

Orbital period

93.51 mins

BSTAR

0.0010999

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

COSMOS 2251 DEB, 33889 (Decayed)

COSMOS 2251 DEB, 35826 (Decayed)

COSMOS 2251 DEB, 34275 (Decayed)

COSMOS 2251 DEB, 34922 (Decayed)

COSMOS 2251 DEB, 35644 (Decayed)

COSMOS 2251 DEB, 34748 (Decayed)

COSMOS 2251 DEB, 34961 (Decayed)

COSMOS 2251 DEB, 36381 (Decayed)

COSMOS 2251 DEB, 34625 (Decayed)

COSMOS 2251 DEB, 37300 (Decayed)

COSMOS 2251 DEB, 33904 (Decayed)

COSMOS 2251 DEB, 35765 (Decayed)

COSMOS 2251 DEB, 35963 (Decayed)

COSMOS 2251 DEB, 34626

COSMOS 2251 DEB, 34287 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

COSMOS 2251 DEB Visibility forecast

Loading observer location...
Set Observer location

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.
6 mins	2026-06-27 19:14:18.957Z	217.407° SW	2026-06-27 19:17:18.957Z	300.913° NW	36.067°	2026-06-27 19:20:18.957Z	6.845° NNE
5 mins	2026-06-28 05:01:18.957Z	341.075° N	2026-06-28 05:03:18.957Z	327.629° NNW	44.964°	2026-06-28 05:06:18.957Z	162.434° S

Items per page:

1–2 of 2 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

Check out COSMOS 2251 DEB, 33821 on other resources

View COSMOS 2251 DEB, 33821 on Heavens-Above

View COSMOS 2251 DEB, 33821 on Keep Track

View COSMOS 2251 DEB, 33821 on Celestrak

View COSMOS 2251 DEB, 33821 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, 33821

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-06-27T03:30:01.696Z)

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, 33821 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago