SL-14 R/B, 21785

Orbit data source: Space-Track

SL-14 R/B, 21785 is space debris in LEO originally from a launch on Tue, 12 Nov 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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https://www.satcat.com/sats-embedded/21785?theme=dark&initialShowStats=false

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Identifier

21785, 1991-077G

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

S5M, Unknown motor

Mass

1,600 kg wet, 1,600 kg dry

Launch date (UTC)

1991-11-12 (35 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
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 SL-14 R/B
1 21785U 91077G   26235.55328711  .00000012  00000-0  13013-4 0  9992
2 21785  82.6017 323.8534 0037475 237.4710 132.6151 12.55091588593210

Epoch: 2026-08-23T13:16Z

TLE epoch observation values (Epoch: 2026-08-23T13:16:44.006Z)

Latitude

10.26406°

Longitude

154.16306°

Altitude

1,465.158 km

Speed

7.122 km/s

True Right ascension

21h 40m 46s

True Declination

10° 12' 34"

Sunlit

Object was in full shadow 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

14:00:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,469.901 km

Perigee altitude

1,411.299 km

Semi-major axis

7,818.737 km

Eccentricity

0.00375

Inclination

82.6017°

RAAN

323.8534°

Arg. of periapsis

237.471°

True anomaly

132.93013°

Mean anomaly

132.6151°

Eccentric anomaly

132.77271°

Mean motion

3.13934 °/min

Orbital period

114.67 mins

BSTAR

0.000013013

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Other satellites on launch #77 in the year 1991 (1991-11-12 UTC)

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SL-14 R/B 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.
7 mins	2026-08-24 04:41:48.282Z	100.304° ESE	2026-08-24 04:44:48.282Z	78.697° E	13.91°	2026-08-24 04:48:48.282Z	49.723° ENE
16 mins	2026-08-24 06:31:48.282Z	179.549° S	2026-08-24 06:39:48.282Z	58.667° ENE	44.414°	2026-08-24 06:47:48.282Z	9.853° NNE
10 mins	2026-08-24 08:31:48.282Z	259.9° W	2026-08-24 08:35:48.282Z	292.734° NW	19.9°	2026-08-24 08:41:48.282Z	339.214° N
13 mins	2026-08-24 16:37:48.282Z	12.928° NNE	2026-08-24 16:43:48.282Z	65.018° ENE	29.428°	2026-08-24 16:50:48.282Z	130.486° SE
14 mins	2026-08-24 18:33:48.282Z	337.615° N	2026-08-24 18:39:48.282Z	278.364° WNW	37.216°	2026-08-24 18:47:48.282Z	200.358° SSW

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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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Check out SL-14 R/B, 21785 on other resources

View SL-14 R/B, 21785 on Heavens-Above

View SL-14 R/B, 21785 on Keep Track

View SL-14 R/B, 21785 on Celestrak

View SL-14 R/B, 21785 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-14 R/B, 21785

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-08-23T13:16:44.006Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #77 in the year 1991 (1991-11-12 UTC)

SL-14 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-14 R/B, 21785 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago