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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/16339?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/16339?theme=dark&initialShowStats=false

Optional secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

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 (41 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

CYL, 1.1 m

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 SL-12 R/B(2)
1 16339U 85107F   26309.58367170 -.00000074  00000-0  00000-0 0  9992
2 16339  10.8609 322.0838 0016327 128.9821  51.6048  0.97493962128750

Epoch: 2026-11-05T14:00Z

TLE epoch observation values (Epoch: 2026-11-05T14:00:29.234Z)

Latitude

-0.15537°

Longitude

-112.14005°

Altitude

36,540.148 km

Speed

3.049 km/s

True Right ascension

09h 31m 11s

True Declination

0° 09' 19"

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

12:51:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

36,654.894 km

Perigee altitude

36,514.603 km

Semi-major axis

42,962.885 km

Eccentricity

0.00163

Inclination

10.8609°

RAAN

322.0838°

Arg. of periapsis

128.9821°

True anomaly

51.75162°

Mean anomaly

51.6048°

Eccentric anomaly

51.67819°

Mean motion

0.24373 °/min

Orbital period

1,477.06 mins

BSTAR

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

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

RADUGA 17, 16250

SL-12 PLAT, 16252 (Decayed)

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

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

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

SL-12 R/B(2) Visibility forecast

Loading observer location...
Set Observer location

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	2026-11-06 16:48:20.190Z	204.941° SW	2026-11-07 08:58:20.190Z	224.532° SW	47.631°	2026-11-07 16:48:20.190Z	217.538° SW

Items per page:

1–1 of 1 items

of 1 page

Loading historical data...

16339 neighbors

Authenticating...

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-11-05T14:00:29.234Z)

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: 1 day ago