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 (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: 11 hours ago

TLE from 11 hours ago

0 SL-14 R/B
1 21785U 91077G   26055.50101730  .00000014  00000-0  23689-4 0  9999
2 21785  82.5921  76.9352 0037257 281.4917 196.2657 12.55090117570627

Epoch: 2026-02-24T12:01Z

TLE epoch observation values (Epoch: 2026-02-24T12:01:27.894Z)

Latitude

61.54742°

Longitude

-91.62407°

Altitude

1,481.75 km

Speed

7.115 km/s

True Right ascension

16h 12m 29s

True Declination

61° 24' 59"

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

02:30:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,469.737 km

Perigee altitude

1,411.476 km

Semi-major axis

7,818.744 km

Eccentricity

0.00373

Inclination

82.5921°

RAAN

76.9352°

Arg. of periapsis

281.4917°

True anomaly

196.14665°

Mean anomaly

196.2657°

Eccentric anomaly

196.20612°

Mean motion

3.13934 °/min

Orbital period

114.67 mins

BSTAR

0.000023689

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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.
13 mins	2026-02-25 00:53:33.503Z	141.421° SSE	2026-02-25 01:00:33.503Z	79.328° E	28.782°	2026-02-25 01:06:33.503Z	28.816° NE
15 mins	2026-02-25 02:48:33.503Z	212.565° SW	2026-02-25 02:55:33.503Z	286.127° WNW	37.843°	2026-02-25 03:03:33.503Z	357.907° N
6 mins	2026-02-25 11:00:33.503Z	39.236° NE	2026-02-25 11:03:33.503Z	61.182° ENE	13.227°	2026-02-25 11:06:33.503Z	82.755° E
15 mins	2026-02-25 12:53:33.503Z	358.105° N	2026-02-25 13:00:33.503Z	75.805° E	43.537°	2026-02-25 13:08:33.503Z	164.338° S
11 mins	2026-02-25 14:50:33.503Z	319.39° NNW	2026-02-25 14:55:33.503Z	278.243° WNW	21.323°	2026-02-25 15:01:33.503Z	232.749° 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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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: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-02-24T12:01:27.894Z)

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: 11 hours ago