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

73.9

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: 1991-009BV

Object number (NORAD): 21406

Object ID (CCSDS): 21406

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: SMALL

Orbital parameters

Period: 116.902 minutes

Inclination: 73.9166 deg

SMA: 7919.706 km

Apoapsis: 1649.054 km

Periapsis: 1434.087 km

RAAN: 18.0138 deg

Eccentricy: 0.0135716

Argument of periapsis: 18.7623 deg

Mean anomaly: 40.7109 deg

Mean motion: 12.31797195 rev/day

Mean motion (dot): 0.00000072 rev/day2

B* drag term: 0.00070899 1/REarth

Two-line elements (TLE)

Creation date: Oct. 31, 2025, 6:26 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 31, 2025, 6:17 a.m. UTC

TLE line 0: 0 SL-8 DEB

TLE line 1: 1 21406U 91009BV 25304.26193611 .00000072 00000-0 70899-3 0 9990

TLE line 2: 2 21406 73.9166 18.0138 0135716 18.7623 40.7109 12.31797195552433

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 1357 LEO 2024-09-21 13:11:22 0.0004471722 518.0 (m) PAYLOAD
SL-8 DEB LEO 2024-07-28 07:22:13 0.0001299734 177.0 (m) DEBRIS

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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