SL-8 DEB, 21182

Orbit data source: Space-Track

SL-8 DEB, 21182 is space debris in LEO originally from a launch on Tue, 12 Feb 1991 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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<iframe src="https://www.satcat.com/sats-embedded/21182?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/21182?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21182, 1991-009AV

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1991-02-12 (35 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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 SL-8 DEB
1 21182U 91009AV  26171.24038830  .00000000  00000-0  14496-3 0  9995
2 21182  73.9977 102.8306 0153297 288.9210 225.1671 12.22077511573293

Epoch: 2026-06-20T05:46Z

TLE epoch observation values (Epoch: 2026-06-20T05:46:09.549Z)

Latitude

26.04363°

Longitude

-80.18457°

Altitude

1,673.137 km

Speed

7.001 km/s

True Right ascension

18h 19m 15s

True Declination

25° 55' 25"

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

08:46:29

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,703.392 km

Perigee altitude

1,459.358 km

Semi-major axis

7,959.512 km

Eccentricity

0.01533

Inclination

73.9977°

RAAN

102.8306°

Arg. of periapsis

288.921°

True anomaly

223.93805°

Mean anomaly

225.1671°

Eccentric anomaly

224.55092°

Mean motion

3.05642 °/min

Orbital period

117.78 mins

BSTAR

0.00014496

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Other satellites on launch #9 in the year 1991 (1991-02-12 UTC)

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SL-8 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.
13 mins	2026-06-20 22:47:29.600Z	267.002° W	2026-06-20 22:53:29.600Z	308.971° NW	20.633°	2026-06-20 23:00:29.600Z	357.436° N
15 mins	2026-06-21 05:05:29.600Z	0.491° NNE	2026-06-21 05:12:29.600Z	52.107° ENE	26.613°	2026-06-21 05:20:29.600Z	110.483° ESE
17 mins	2026-06-21 07:05:29.600Z	336.08° NNW	2026-06-21 07:13:29.600Z	273.695° WNW	43.473°	2026-06-21 07:22:29.600Z	174.965° S
6 mins	2026-06-21 09:09:29.600Z	293.403° NW	2026-06-21 09:12:29.600Z	274.313° WNW	12.954°	2026-06-21 09:15:29.600Z	255.258° W
7 mins	2026-06-21 18:24:29.600Z	106.316° ESE	2026-06-21 18:27:29.600Z	85.855° E	14.322°	2026-06-21 18:31:29.600Z	59.664° ENE
17 mins	2026-06-21 20:18:29.600Z	188.928° SSW	2026-06-21 20:26:29.600Z	76.969° E	44.285°	2026-06-21 20:35:29.600Z	21.644° 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 SL-8 DEB, 21182 on other resources

View SL-8 DEB, 21182 on Heavens-Above

View SL-8 DEB, 21182 on Keep Track

View SL-8 DEB, 21182 on Celestrak

View SL-8 DEB, 21182 on Gunter's Space Page

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

SL-8 DEB, 21182

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-06-20T05:46:09.549Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #9 in the year 1991 (1991-02-12 UTC)

SL-8 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-8 DEB, 21182 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago