SL-8 DEB, 21212

Orbit data source: Space-Track

SL-8 DEB, 21212 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 URL

https://www.satcat.com/sats-embedded/21212?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21212, 1991-009BF

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: 15 hours ago

TLE from 15 hours ago

0 SL-8 DEB
1 21212U 91009BF  26154.68835681  .00000337  00000-0  36908-2 0  9991
2 21212  74.1593 350.1537 0231695 242.2185 255.4284 12.06919113550073

Epoch: 2026-06-03T16:31Z

TLE epoch observation values (Epoch: 2026-06-03T16:31:14.028Z)

Latitude

42.85989°

Longitude

15.01073°

Altitude

1,706.691 km

Speed

7.004 km/s

True Right ascension

10h 19m 51s

True Declination

42° 42' 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

17:45:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,833.863 km

Perigee altitude

1,461.944 km

Semi-major axis

8,026.041 km

Eccentricity

0.02317

Inclination

74.1593°

RAAN

350.1537°

Arg. of periapsis

242.2185°

True anomaly

252.87821°

Mean anomaly

255.4284°

Eccentric anomaly

254.15135°

Mean motion

3.0185 °/min

Orbital period

119.26 mins

BSTAR

0.0036908

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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.
6 mins	2026-06-04 11:48:57.358Z	99.972° ESE	2026-06-04 11:51:57.358Z	82.255° E	12.36°	2026-06-04 11:54:57.358Z	64.771° ENE
19 mins	2026-06-04 13:42:57.358Z	180.58° SSW	2026-06-04 13:51:57.358Z	90.006° ESE	42.713°	2026-06-04 14:01:57.358Z	23.568° NE
16 mins	2026-06-04 15:46:57.358Z	250.002° W	2026-06-04 15:53:57.358Z	302.044° NW	29.081°	2026-06-04 16:02:57.358Z	4.667° NNE
13 mins	2026-06-04 22:11:57.358Z	4.769° NNE	2026-06-04 22:17:57.358Z	45.082° ENE	21.035°	2026-06-04 22:24:57.358Z	93.677° ESE
18 mins	2026-06-05 00:12:57.358Z	341.935° N	2026-06-05 00:21:57.358Z	103.756° ESE	44.921°	2026-06-05 00:30:57.358Z	161.706° S
11 mins	2026-06-05 02:16:57.358Z	307.578° NW	2026-06-05 02:21:57.358Z	273.762° WNW	18.86°	2026-06-05 02:27:57.358Z	232.563° 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, 21212 on other resources

View SL-8 DEB, 21212 on Heavens-Above

View SL-8 DEB, 21212 on Keep Track

View SL-8 DEB, 21212 on Celestrak

View SL-8 DEB, 21212 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, 21212

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-06-03T16:31:14.028Z)

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, 21212 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago