SL-12 R/B(AUX MOTOR), 21226

Orbit data source: Space-Track

SL-12 R/B(AUX MOTOR), 21226 is space debris originally from a launch on Thu, 04 Apr 1991 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). 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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https://www.satcat.com/sats-embedded/21226?theme=dark&initialShowStats=false

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Identifier

21226, 1991-025G

Orbit

Active

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

SOZ, Unknown motor

Mass

Wet unknown, ~60 kg dry

Launch date (UTC)

1991-04-04 (35 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.6 m

Radar Cross Section

0.660 m², Medium (>0.1 m² and < 1m²)

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

TLE from 2 days ago

0 SL-12 R/B(AUX MOTOR)
1 21226U 91025G   26171.19954977  .00026596  00000-0  21253-2 0  9991
2 21226  64.5369  42.9271 4417671  32.4421 348.3850  6.66927876664081

Epoch: 2026-06-20T04:47Z

TLE epoch observation values (Epoch: 2026-06-20T04:47:21.100Z)

Latitude

0.00003°

Longitude

62.6716°

Altitude

609.724 km

Speed

8.982 km/s

True Right ascension

02h 51m 42s

True Declination

0° 00' 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

03:41:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

10,808.984 km

Perigee altitude

276.486 km

Semi-major axis

11,920.872 km

Eccentricity

0.44177

Inclination

64.5369°

RAAN

42.9271°

Arg. of periapsis

32.4421°

True anomaly

327.64554°

Mean anomaly

348.385°

Eccentric anomaly

339.53542°

Mean motion

1.66756 °/min

Orbital period

215.88 mins

BSTAR

0.0021253

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Other satellites on launch #25 in the year 1991 (1991-04-04 UTC)

SL-12 DEB, 34798 (Decayed)

SL-12 DEB *, 35314

SL-12 DEB, 35313 (Decayed)

SL-12 DEB, 34665 (Decayed)

COSMOS 2140 (GLONASS), 21217

SL-12 DEB, 35056

SL-12 R/B(AUX MOTOR), 21220

COSMOS 2141 (GLONASS), 21218

SL-12 DEB, 47344 (Decayed)

SL-12 DEB, 35307

SL-12 DEB, 34804 (Decayed)

SL-12 DEB, 35082

SL-12 DEB, 34801

SL-12 DEB, 34806 (Decayed)

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SL-12 R/B(AUX MOTOR) 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	2026-06-22 18:07:46.809Z	287.928° WNW	2026-06-22 18:08:46.809Z	318.826° NNW	18.23°	2026-06-22 18:11:46.809Z	12.643° NNE
15 mins	2026-06-22 21:54:46.809Z	4.586° NNE	2026-06-22 21:58:46.809Z	32.063° NE	16.656°	2026-06-22 22:09:46.809Z	68.043° E
67 mins	2026-06-23 01:34:46.809Z	330.923° NNW	2026-06-23 01:45:46.809Z	54.709° ENE	44.743°	2026-06-23 02:41:46.809Z	155.57° SSE
48 mins	2026-06-23 05:19:46.809Z	295.067° NW	2026-06-23 05:34:46.809Z	256.917° W	22.02°	2026-06-23 06:07:46.809Z	221.785° SW

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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-12 R/B(AUX MOTOR), 21226 on other resources

View SL-12 R/B(AUX MOTOR), 21226 on Heavens-Above

View SL-12 R/B(AUX MOTOR), 21226 on Keep Track

View SL-12 R/B(AUX MOTOR), 21226 on Celestrak

View SL-12 R/B(AUX MOTOR), 21226 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-12 R/B(AUX MOTOR), 21226

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: 2026-06-20T04:47:21.100Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #25 in the year 1991 (1991-04-04 UTC)

SL-12 R/B(AUX MOTOR) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(AUX MOTOR), 21226 on other resources

Documentation

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