SL-8 DEB, 21943

Orbit data source: Space-Track

SL-8 DEB, 21943 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/21943?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/21943?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21943, 1991-009CE

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: 2 days ago

TLE from 2 days ago

0 SL-8 DEB
1 21943U 91009CE  26171.29260677  .00000022  00000-0  34676-3 0  9997
2 21943  73.9531 124.0256 0136578  67.7555  82.5334 12.19266353570391

Epoch: 2026-06-20T07:01Z

TLE epoch observation values (Epoch: 2026-06-20T07:01:21.224Z)

Latitude

27.00786°

Longitude

-78.21126°

Altitude

1,585.828 km

Speed

7.084 km/s

True Right ascension

19h 42m 32s

True Declination

26° 53' 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

02:18:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,702.491 km

Perigee altitude

1,484.738 km

Semi-major axis

7,971.752 km

Eccentricity

0.01366

Inclination

73.9531°

RAAN

124.0256°

Arg. of periapsis

67.7555°

True anomaly

84.08846°

Mean anomaly

82.5334°

Eccentric anomaly

83.31061°

Mean motion

3.04939 °/min

Orbital period

118.06 mins

BSTAR

0.00034676

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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.
16 mins	2026-06-22 21:18:00.352Z	180.837° SSW	2026-06-22 21:26:00.352Z	104.193° ESE	41.927°	2026-06-22 21:34:00.352Z	25.866° NE
13 mins	2026-06-22 23:21:00.352Z	251.844° W	2026-06-22 23:27:00.352Z	302.287° NW	26.252°	2026-06-22 23:34:00.352Z	0.093° NNE
10 mins	2026-06-23 05:41:00.352Z	12.412° NNE	2026-06-23 05:46:00.352Z	49.909° ENE	17.787°	2026-06-23 05:51:00.352Z	85.529° E
17 mins	2026-06-23 07:40:00.352Z	343.642° N	2026-06-23 07:48:00.352Z	81.024° E	44.487°	2026-06-23 07:57:00.352Z	157.532° S
10 mins	2026-06-23 09:43:00.352Z	302.977° NW	2026-06-23 09:47:00.352Z	272.227° WNW	20.038°	2026-06-23 09:53:00.352Z	228.326° 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, 21943 on other resources

View SL-8 DEB, 21943 on Heavens-Above

View SL-8 DEB, 21943 on Keep Track

View SL-8 DEB, 21943 on Celestrak

View SL-8 DEB, 21943 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, 21943

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T07:01:21.224Z)

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, 21943 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago