SL-12 R/B(2), 25927

Orbit data source: Space-Track

SL-12 R/B(2), 25927 is space debris in HEO originally from a launch on Sun, 26 Sep 1999 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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https://www.satcat.com/sats-embedded/25927?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25927, 1999-053D

Orbit

HEO

Country

CIS

Related business

Khrunichev State Research and Production Space Center (RU)

Manufacturer

RKKE

Mission

Spacecraft

Bus & Motor

BLOK DM2, Unknown motor

Mass

2,560 kg wet, 2,560 kg dry

Launch date (UTC)

1999-09-26 (26 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 1 Nozzle, 3.1 m

Radar Cross Section

23.684 m², Large (>1 m²)

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Last TLE update: 2 days ago

TLE from 2 days ago

0 SL-12 R/B(2)
1 25927U 99053D   25288.25947633 -.00000214  00000-0  00000-0 0  9993
2 25927  17.7947 339.9709 5328735 231.8899  49.8618  1.89350381179781

Epoch: 2025-10-15T06:13Z

TLE epoch observation values (Epoch: 2025-10-15T06:13:38.754Z)

Latitude

-4.45868°

Longitude

-151.53334°

Altitude

18,680.77 km

Speed

4.168 km/s

True Right ascension

21h 43m 39s

True Declination

-4° 27' 04"

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

22:51:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,930.913 km

Perigee altitude

6,515.085 km

Semi-major axis

27,601.136 km

Eccentricity

0.53287

Inclination

17.7947°

RAAN

339.9709°

Arg. of periapsis

231.8899°

True anomaly

113.24665°

Mean anomaly

49.8618°

Eccentric anomaly

79.92213°

Mean motion

0.47332 °/min

Orbital period

760.59 mins

BSTAR

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Other satellites on launch #53 in the year 1999 (1999-09-26 UTC)

SL-12 R/B(1), 25925 (Decayed)

SL-12 PLAT, 25926 (Decayed)

ABS 6 (LMI 1), 25924

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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.
126 mins	2025-10-18 02:02:33.964Z	87.499° E	2025-10-18 04:08:33.964Z	90.075° ESE	17.53°	2025-10-18 04:08:33.964Z	90.075° ESE

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), 25927 on other resources

View SL-12 R/B(2), 25927 on Heavens-Above

View SL-12 R/B(2), 25927 on Keep Track

View SL-12 R/B(2), 25927 on Celestrak

View SL-12 R/B(2), 25927 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), 25927

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2025-10-15T06:13:38.754Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #53 in the year 1999 (1999-09-26 UTC)

SL-12 R/B(2) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-12 R/B(2), 25927 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago