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

Last TLE update

14 hours 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)

1991-11-12 (33 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 2.7 m

Radar Cross Section

7.351 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 14 hours ago

0 SL-14 R/B
1 21785U 91077G   25128.74414117 -.00000003  00000-0 -81214-4 0  9999
2 21785  82.5958 260.1369 0037947 212.3284 267.3650 12.55087382534025

Epoch: 2025-05-08T17:51Z

Definitive object data (Epoch: 2025-05-08T17:51:33.797Z)

Latitude

59.98695°

Longitude

-67.49995°

Altitude

1,454.92 km

Speed

7.14 km/s

True Right ascension

04h 28m 48s

True Declination

59° 51' 04"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-49.07071°

Longitude

116.4824°

Altitude

1,467.07 km

Speed

7.126 km/s

Apparent Right ascension

20h 35m 24s

Apparent Declination

-87° 08' 00"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

16:24:57

Azimuth

176.745° S

Elevation

-38.551°

Doppler factor

Orbital elements

Apogee altitude

1,470.288 km

Perigee altitude

1,410.948 km

Semi-major axis

7,818.755 km

Eccentricity

0.0037947

Inclination

82.5958°

RAAN

260.1369°

Arg. of periapsis

212.3284°

True anomaly

266.93072°

Mean anomaly

267.365°

Eccentric anomaly

267.14785°

Mean motion

3.13933 °/min

BSTAR

-0.000081214

Orbital period

114.67 mins

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

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.
15 mins	2025-05-09 08:36:49.762Z	156.361° SSE	2025-05-09 08:44:49.762Z	81.675° E	35.717°	2025-05-09 08:51:49.762Z	20.983° NNE
14 mins	2025-05-09 10:33:49.762Z	227.086° WSW	2025-05-09 10:39:49.762Z	281.561° WNW	31.465°	2025-05-09 10:47:49.762Z	352.383° N
10 mins	2025-05-09 18:43:49.762Z	27.958° NE	2025-05-09 18:48:49.762Z	67.965° E	17.901°	2025-05-09 18:53:49.762Z	105.384° ESE
15 mins	2025-05-09 20:37:49.762Z	351.445° N	2025-05-09 20:44:49.762Z	320.428° NNW	44.817°	2025-05-09 20:52:49.762Z	176.906° S
6 mins	2025-05-09 22:36:49.762Z	303.791° NW	2025-05-09 22:39:49.762Z	280.341° WNW	14.899°	2025-05-09 22:42:49.762Z	257.662° W
10 mins	2025-05-10 07:37:49.762Z	114.31° SE	2025-05-10 07:42:49.762Z	74.713° E	18.687°	2025-05-10 07:47:49.762Z	38.108° NE

Authenticating...

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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

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