SL-12 R/B(2), 16339

Orbit data source: Space-Track

SL-12 R/B(2), 16339 is space debris in GEO originally from a launch on Fri, 15 Nov 1985 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). 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/16339?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

16339, 1985-107F

Orbit

GEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

NPO Energiya

Mission

Spacecraft

Bus & Motor

BLOK DM, Unknown motor

Mass

2,440 kg wet, 2,440 kg dry

Launch date (UTC)

1985-11-15 (40 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

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Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SL-12 R/B(2)
1 16339U 85107F   25315.23298638 -.00000072  00000-0  00000-0 0  9990
2 16339  11.4235 324.2333 0016695 124.9369 286.4173  0.97494090125259

Epoch: 2025-11-11T05:35Z

TLE epoch observation values (Epoch: 2025-11-11T05:35:30.023Z)

Latitude

8.89265°

Longitude

-119.67224°

Altitude

36,562.147 km

Speed

3.048 km/s

True Right ascension

00h 59m 18s

True Declination

8° 53' 02"

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

11:21:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

36,656.431 km

Perigee altitude

36,512.978 km

Semi-major axis

42,962.842 km

Eccentricity

0.00167

Inclination

11.4235°

RAAN

324.2333°

Arg. of periapsis

124.9369°

True anomaly

286.23368°

Mean anomaly

286.4173°

Eccentric anomaly

286.3255°

Mean motion

0.24373 °/min

Orbital period

1,477.06 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #107 in the year 1985 (1985-11-15 UTC)

SL-12 PLAT, 16252 (Decayed)

SL-12 R/B(AUX MOTOR), 16255 (Decayed)

SL-12 R/B(1), 16251 (Decayed)

RADUGA 17, 16250

SL-12 R/B(AUX MOTOR), 16254 (Decayed)

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SL-12 R/B(2) 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.
1440 mins	2025-11-11 14:57:30.599Z	205.633° SW	2025-11-12 08:47:30.599Z	225.124° WSW	36.666°	2025-11-12 14:57:30.599Z	219.172° SW

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16339 neighbors

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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-12 R/B(2), 16339 on other resources

View SL-12 R/B(2), 16339 on Heavens-Above

View SL-12 R/B(2), 16339 on Keep Track

View SL-12 R/B(2), 16339 on Celestrak

View SL-12 R/B(2), 16339 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-12 R/B(2), 16339

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2025-11-11T05:35:30.023Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #107 in the year 1985 (1985-11-15 UTC)

SL-12 R/B(2) Visibility forecast

16339 neighbors

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 16339 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago