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>

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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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 SL-8 DEB
1 21167U 91009AE  26070.93189258  .00000006  00000-0  18011-3 0  9996
2 21167  73.9126 258.6556 0137481 246.0642 273.1767 12.29322809571433

Epoch: 2026-03-11T22:21Z

TLE epoch observation values (Epoch: 2026-03-11T22:21:55.518Z)

Latitude

21.43018°

Longitude

-72.88265°

Altitude

1,549.744 km

Speed

7.096 km/s

True Right ascension

04h 48m 45s

True Declination

21° 19' 31"

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

08:59:33

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,659.057 km

Perigee altitude

1,441.062 km

Semi-major axis

7,928.197 km

Eccentricity

0.01375

Inclination

73.9126°

RAAN

258.6556°

Arg. of periapsis

246.0642°

True anomaly

271.6024°

Mean anomaly

273.1767°

Eccentric anomaly

272.38968°

Mean motion

3.07455 °/min

Orbital period

117.09 mins

BSTAR

0.00018011

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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.
4 mins	2026-03-12 11:20:38.335Z	97.993° ESE	2026-03-12 11:22:38.335Z	85.368° E	11.441°	2026-03-12 11:24:38.335Z	72.696° E
17 mins	2026-03-12 13:12:38.335Z	181.373° SSW	2026-03-12 13:20:38.335Z	97.813° ESE	42.737°	2026-03-12 13:29:38.335Z	24.432° NE
15 mins	2026-03-12 15:13:38.335Z	249.147° W	2026-03-12 15:20:38.335Z	302.707° NW	27.685°	2026-03-12 15:28:38.335Z	2.785° NNE
10 mins	2026-03-12 21:32:38.335Z	13.191° NNE	2026-03-12 21:37:38.335Z	49.967° ENE	18.496°	2026-03-12 21:42:38.335Z	85.241° E
16 mins	2026-03-12 23:30:38.335Z	343.941° N	2026-03-12 23:38:38.335Z	75.914° E	44.423°	2026-03-12 23:46:38.335Z	156.189° SSE
11 mins	2026-03-13 01:31:38.335Z	309.292° NW	2026-03-13 01:36:38.335Z	272.981° WNW	20.658°	2026-03-13 01:42:38.335Z	227.958° 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 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: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-03-11T22:21:55.518Z)

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: 6 hours ago