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

12724

Days in orbit

Revolutions

≈ 12.1

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.2

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: 1991-009DR

Object number (NORAD): 39702

Object ID (CCSDS): 39702

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: SMALL

Orbital parameters

Period: 118.541 minutes

Inclination: 74.2346 deg

SMA: 7993.545 km

Apoapsis: 1764.788 km

Periapsis: 1466.032 km

RAAN: 61.8743 deg

Eccentricy: 0.0186873

Argument of periapsis: 137.6373 deg

Mean anomaly: 223.9262 deg

Mean motion: 12.14768749 rev/day

Mean motion (dot): -0.00000085 rev/day²

B* drag term: -0.0007056 1/R_Earth

Two-line elements (TLE)

Creation date: Nov. 28, 2025, 7:16 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Nov. 27, 2025, 10:23 p.m. UTC

TLE line 0: 0 SL-8 DEB

TLE line 1: 1 39702U 91009DR 25331.93273390 -.00000085 00000-0 -70560-3 0 9996

TLE line 2: 2 39702 74.2346 61.8743 0186873 137.6373 223.9262 12.14768749433073

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 2037	LEO	2025-03-26 18:05:34	0.001360519	411.0 (m)	PAYLOAD
COSMOS 1853	LEO	2025-01-09 00:35:29	0.0007175938	345.0 (m)	PAYLOAD
DELTA 1 R/B	SSO	2024-08-04 03:00:52	0.0001497875	174.0 (m)	ROCKET BODY

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.

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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