SL-8 DEB, 21167

Orbit data source: Space-Track

SL-8 DEB, 21167 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/21167?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/21167?theme=dark&initialShowStats=false

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Identifier

21167, 1991-009AE

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, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 3 days ago

TLE from 3 days ago

0 SL-8 DEB
1 21167U 91009AE  26152.70166981 -.00000021  00000-0 -54366-4 0  9993
2 21167  73.9130 153.3780 0136576 129.0185 350.3627 12.29324227581489

Epoch: 2026-06-01T16:50Z

TLE epoch observation values (Epoch: 2026-06-01T16:50:24.271Z)

Latitude

57.17971°

Longitude

164.17215°

Altitude

1,454.624 km

Speed

7.188 km/s

True Right ascension

20h 27m 50s

True Declination

57° 02' 13"

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

16:30:19

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,658.334 km

Perigee altitude

1,441.774 km

Semi-major axis

7,928.191 km

Eccentricity

0.01366

Inclination

73.913°

RAAN

153.378°

Arg. of periapsis

129.0185°

True anomaly

350.09621°

Mean anomaly

350.3627°

Eccentric anomaly

350.22991°

Mean motion

3.07455 °/min

Orbital period

117.09 mins

BSTAR

-0.000054366

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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.
12 mins	2026-06-04 09:13:53.594Z	4.434° NNE	2026-06-04 09:19:53.594Z	51.592° ENE	21.039°	2026-06-04 09:25:53.594Z	98.587° ESE
15 mins	2026-06-04 11:13:53.594Z	338.356° N	2026-06-04 11:20:53.594Z	213.878° SW	44.54°	2026-06-04 11:28:53.594Z	167.636° S
6 mins	2026-06-04 13:15:53.594Z	292.083° WNW	2026-06-04 13:18:53.594Z	269.84° W	13.489°	2026-06-04 13:21:53.594Z	248.224° W
16 mins	2026-06-05 00:21:53.594Z	179.415° S	2026-06-05 00:28:53.594Z	118.928° SE	41.699°	2026-06-05 00:37:53.594Z	25.467° NE
14 mins	2026-06-05 02:22:53.594Z	249.13° W	2026-06-05 02:29:53.594Z	307.755° NW	26.975°	2026-06-05 02:36:53.594Z	2.257° 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, 21167 on other resources

View SL-8 DEB, 21167 on Heavens-Above

View SL-8 DEB, 21167 on Keep Track

View SL-8 DEB, 21167 on Celestrak

View SL-8 DEB, 21167 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, 21167

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-01T16:50:24.271Z)

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, 21167 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 days ago