SL-12 DEB, 25798

Orbit data source: Space-Track

SL-12 DEB, 25798 is space debris in HEO originally from a launch on Tue, 10 Jan 1989 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/25798?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/25798?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

25798, 1989-001K

Orbit

HEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1989-01-10 (38 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.5 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

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

TLE from 1 day ago

0 SL-12 DEB
1 25798U 89001K   26253.24837736  .00012473  00000-0  34942-1 0  9997
2 25798  65.1630 335.6494 4474513 217.6198 256.4526  6.11090195 16818

Epoch: 2026-09-10T05:57Z

TLE epoch observation values (Epoch: 2026-09-10T05:57:39.803Z)

Latitude

60.54484°

Longitude

-48.24471°

Altitude

9,481.881 km

Speed

4.332 km/s

True Right ascension

02h 01m 50s

True Declination

60° 28' 43"

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

04:28:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

11,912.54 km

Perigee altitude

604.129 km

Semi-major axis

12,636.472 km

Eccentricity

0.44745

Inclination

65.163°

RAAN

335.6494°

Arg. of periapsis

217.6198°

True anomaly

215.91537°

Mean anomaly

256.4526°

Eccentric anomaly

235.35997°

Mean motion

1.52793 °/min

Orbital period

235.61 mins

BSTAR

0.034942

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #1 in the year 1989 (1989-01-10 UTC)

SL-12 DEB, 28260 (Decayed)

SL-12 DEB, 28258 (Decayed)

SL-12 DEB, 28259 (Decayed)

SL-12 DEB, 36883 (Decayed)

SL-12 DEB, 25797 (Decayed)

SL-12 R/B(1), 19752 (Decayed)

SL-12 DEB, 25799 (Decayed)

SL-12 DEB, 26046 (Decayed)

SL-12 DEB, 28257 (Decayed)

SL-12 DEB, 26814 (Decayed)

SL-12 DEB, 26047 (Decayed)

SL-12 DEB, 38556 (Decayed)

COSMOS 1989 (ETALON 1), 19751

SL-12 DEB, 43334

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 DEB 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.
91 mins	2026-09-11 12:40:45.618Z	296.204° NW	2026-09-11 13:54:45.618Z	18.737° NNE	48.844°	2026-09-11 14:11:45.618Z	93.348° ESE
37 mins	2026-09-11 17:35:45.618Z	327.961° NNW	2026-09-11 18:03:45.618Z	272.79° WNW	41.431°	2026-09-11 18:12:45.618Z	205.366° SW
118 mins	2026-09-12 03:19:45.618Z	132.458° SE	2026-09-12 04:23:45.618Z	78.381° E	40.934°	2026-09-12 05:17:45.618Z	31.962° NE
141 mins	2026-09-12 07:09:45.618Z	209.201° SW	2026-09-12 08:29:45.618Z	297.387° NW	74.04°	2026-09-12 09:30:45.618Z	39.72° NE

Items per page:

1–4 of 4 items

of 1 page

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 DEB, 25798 on other resources

View SL-12 DEB, 25798 on Heavens-Above

View SL-12 DEB, 25798 on Keep Track

View SL-12 DEB, 25798 on Celestrak

View SL-12 DEB, 25798 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 DEB, 25798

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: 2026-09-10T05:57:39.803Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #1 in the year 1989 (1989-01-10 UTC)

SL-12 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-12 DEB, 25798 on other resources

Documentation

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