SL-14 R/B, 21305

Orbit data source: Space-Track

SL-14 R/B, 21305 is space debris in LEO originally from a launch on Thu, 16 May 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/21305?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21305, 1991-033G

Orbit

LEO

Last TLE update

1 day ago

Origin

Russian Space Forces (CIS)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

S5M, Unknown motor

Mass

1,600 kg wet, 1,600 kg dry

Launch date (UTC)

1991-05-16 (34 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.4 m

Radar Cross Section

7.351 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 SL-14 R/B
1 21305U 91033G   25197.73220185  .00000005  00000-0 -34147-4 0  9998
2 21305  82.5655 279.6848 0038794  56.9485  56.0382 12.54822460564920

Epoch: 2025-07-16T17:34Z

TLE epoch observation values (Epoch: 2025-07-16T17:34:22.239Z)

Latitude

65.63182°

Longitude

-115.37461°

Altitude

1,438.82 km

Speed

7.156 km/s

True Right ascension

05h 32m 06s

True Declination

65° 30' 49"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-37.61506°

Longitude

74.9096°

Altitude

1,459.732 km

Speed

7.131 km/s

Apparent Right ascension

18h 16m 59s

Apparent Declination

-38° 29' 01"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

06:21:44

Azimuth

33.1° NE

Elevation

-88.297°

Doppler factor

Orbital elements

Apogee altitude

1,472.057 km

Perigee altitude

1,411.384 km

Semi-major axis

7,819.857 km

Eccentricity

0.00388

Inclination

82.5655°

RAAN

279.6848°

Arg. of periapsis

56.9485°

True anomaly

Unknown

Mean anomaly

56.0382°

Eccentric anomaly

Unknown

Mean motion

3.13866 °/min

Orbital period

114.7 mins

BSTAR

-0.000034147

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Other satellites on launch #33 in the year 1991 (1991-05-16 UTC)

COSMOS 2143 DEB, 57720

COSMOS 2143 DEB, 57721

COSMOS 2143 DEB, 57722

COSMOS 2143 DEB, 57723

COSMOS 2143 DEB, 57724

COSMOS 2143 DEB, 57725

SL-14 R/B Visibility forecast

Observer location: undefined°, undefined°

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.
13 mins	2025-07-17 18:29:01.312Z	332.081° NNW	2025-07-17 18:35:01.312Z	279.622° WNW	30.138°	2025-07-17 18:42:01.312Z	215.808° SW
14 mins	2025-07-18 05:26:01.312Z	157.834° S	2025-07-18 05:33:01.312Z	79.472° E	37.423°	2025-07-18 05:40:01.312Z	18.815° NNE
12 mins	2025-07-18 07:23:01.312Z	235.495° WSW	2025-07-18 07:28:01.312Z	282.517° WNW	28.549°	2025-07-18 07:35:01.312Z	347.327° N
10 mins	2025-07-18 15:32:01.312Z	27.881° NE	2025-07-18 15:37:01.312Z	70.04° E	19.898°	2025-07-18 15:42:01.312Z	108.797° ESE
13 mins	2025-07-18 17:26:01.312Z	349.112° N	2025-07-18 17:33:01.312Z	276.71° WNW	44.415°	2025-07-18 17:39:01.312Z	182.772° SSW

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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Check out SL-14 R/B, 21305 on other resources

View SL-14 R/B, 21305 on Heavens-Above

View SL-14 R/B, 21305 on Keep Track

View SL-14 R/B, 21305 on Celestrak

View SL-14 R/B, 21305 on Gunter's Space Page

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