SL-8 DEB

Satellite information

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Satellite Type and Status

DEBRISIN ORBIT

Key statistics

Satellite SL-8 DEB at a glance.

Uptime

12682

Days in orbit

Revolutions

≈ 12.3

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for SL-8 DEB.

Object identification

Identified? True

Debris? True

Object name: SL-8 DEB

International designator: 1991-009CT

Object number (NORAD): 21234

Object ID (CCSDS): 21234

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: SMALL

Orbital parameters

Period: 116.801 minutes

Inclination: 74.0093 deg

SMA: 7915.108 km

Apoapsis: 1636.847 km

Periapsis: 1437.098 km

RAAN: 74.6545 deg

Eccentricy: 0.01261818

Argument of periapsis: 212.9853 deg

Mean anomaly: 208.3198 deg

Mean motion: 12.32870687 rev/day

Mean motion (dot): 0.00000115 rev/day2

B* drag term: 0.001043879 1/REarth

Two-line elements (TLE)

Creation date: Nov. 1, 2025, 7:40 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Nov. 1, 2025, 10:24 a.m. UTC

TLE line 0: 0 SL-8 DEB

TLE line 1: 1 21234U 91009CT 25305.43366384 .00000115 00000-0 10439-2 0 9999

TLE line 2: 2 21234 74.0093 74.6545 0126182 212.9853 208.3198 12.32870687558573

Live tracking on map

Real-time ground track for satellite SL-8 DEB.

In-orbit conjunctions

A list of the most updated potential collisions computed for object SL-8 DEB.

Target Orbit TCA Probability of collision Miss distance Type
COSMOS 1360 LEO 2025-08-13 19:43:12 0.0005775872 229.0 (m) PAYLOAD

Associated space launch

Military communications satellites

SL-8 DEB was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 353-360’, on board a Kosmos-3M space rocket.

The launch took place on Feb. 12, 1991, 2:44 a.m. from 133/3 (133L).

For more information about the launch, click the button.

Launch to space Kosmos-3M | Strela-1M 353-360
Kosmos-3M | Strela-1M 353-360

Agency: N/A

Status: Launch Successful

Launch date: Feb. 12, 1991, 2:44 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 133/3 (133L)

Location: Plesetsk Cosmodrome, Russian Federation

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