SL-8 DEB, 39835

Orbit data source: Space-Track

SL-8 DEB, 39835 is space debris in LEO originally from a launch on Tue, 12 Feb 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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Iframe URL

https://www.satcat.com/sats-embedded/39835?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

39835, 1991-009DT

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1991-02-12 (35 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 4 days ago

TLE from 4 days ago

0 SL-8 DEB
1 39835U 91009DT  26169.36441222  .00000271  00000-0  24875-2 0  9993
2 39835  74.0441 157.7947 0182849 228.9714 129.5394 12.24129852537986

Epoch: 2026-06-18T08:44Z

TLE epoch observation values (Epoch: 2026-06-18T08:44:45.215Z)

Latitude

0.00003°

Longitude

119.99751°

Altitude

1,671.091 km

Speed

6.997 km/s

True Right ascension

10h 31m 10s

True Declination

0° 00' 00"

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

02:30:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,717.843 km

Perigee altitude

1,427.091 km

Semi-major axis

7,950.604 km

Eccentricity

0.01828

Inclination

74.0441°

RAAN

157.7947°

Arg. of periapsis

228.9714°

True anomaly

131.13187°

Mean anomaly

129.5394°

Eccentric anomaly

130.33796°

Mean motion

3.06156 °/min

Orbital period

117.59 mins

BSTAR

0.0024875

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Other satellites on launch #9 in the year 1991 (1991-02-12 UTC)

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SL-8 DEB 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.
17 mins	2026-06-22 22:39:21.361Z	158.043° S	2026-06-22 22:47:21.361Z	99.709° ESE	32.178°	2026-06-22 22:56:21.361Z	33.293° NE
17 mins	2026-06-23 00:39:21.361Z	223.614° SW	2026-06-23 00:47:21.361Z	294.034° NW	38.837°	2026-06-23 00:56:21.361Z	10.282° NNE
7 mins	2026-06-23 02:47:21.361Z	302.045° NW	2026-06-23 02:50:21.361Z	321.037° NNW	13.356°	2026-06-23 02:54:21.361Z	346.072° N
15 mins	2026-06-23 09:00:21.361Z	354.473° N	2026-06-23 09:07:21.361Z	55.995° ENE	36.008°	2026-06-23 09:15:21.361Z	131.688° SE
15 mins	2026-06-23 11:00:21.361Z	324.609° NNW	2026-06-23 11:07:21.361Z	266.752° W	33.054°	2026-06-23 11:15:21.361Z	198.398° SSW

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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-8 DEB, 39835 on other resources

View SL-8 DEB, 39835 on Heavens-Above

View SL-8 DEB, 39835 on Keep Track

View SL-8 DEB, 39835 on Celestrak

View SL-8 DEB, 39835 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-8 DEB, 39835

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 days ago

TLE from 4 days ago

TLE epoch observation values (Epoch: 2026-06-18T08:44:45.215Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #9 in the year 1991 (1991-02-12 UTC)

SL-8 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-8 DEB, 39835 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 days ago