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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ISO8601 Format

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 (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
Last TLE update: 3 hours ago

TLE from 3 hours ago

0 SL-14 R/B
1 21785U 91077G   25360.87509926  .00000025  00000-0  89602-4 0  9995
2 21785  82.5976 114.3912 0039141  55.5519  66.3995 12.55089366563143

Epoch: 2025-12-26T21:00Z

TLE epoch observation values (Epoch: 2025-12-26T21:00:08.576Z)

Latitude

56.98151°

Longitude

-127.72862°

Altitude

1,440.613 km

Speed

7.152 km/s

True Right ascension

18h 51m 39s

True Declination

56° 50' 17"

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

23:03:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,471.213 km

Perigee altitude

1,410.006 km

Semi-major axis

7,818.747 km

Eccentricity

0.00391

Inclination

82.5976°

RAAN

114.3912°

Arg. of periapsis

55.5519°

True anomaly

66.81131°

Mean anomaly

66.3995°

Eccentric anomaly

66.60533°

Mean motion

3.13933 °/min

Orbital period

114.67 mins

BSTAR

0.000089602

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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.
15 mins	2025-12-27 07:55:39.150Z	163.993° S	2025-12-27 08:02:39.150Z	93.579° ESE	39.829°	2025-12-27 08:10:39.150Z	16.075° NNE
12 mins	2025-12-27 09:53:39.150Z	241.416° WSW	2025-12-27 09:58:39.150Z	288.073° WNW	26.252°	2025-12-27 10:05:39.150Z	347.47° N
11 mins	2025-12-27 18:01:39.150Z	23.372° NE	2025-12-27 18:06:39.150Z	65.402° ENE	21.99°	2025-12-27 18:12:39.150Z	114.325° SE
15 mins	2025-12-27 19:56:39.150Z	346.219° N	2025-12-27 20:03:39.150Z	246.239° WSW	43.217°	2025-12-27 20:11:39.150Z	185.123° 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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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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: 3 hours ago

TLE from 3 hours ago

TLE epoch observation values (Epoch: 2025-12-26T21:00:08.576Z)

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: 3 hours ago