SL-8 R/B

Satellite information

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Satellite Type and Status

ROCKET BODYIN ORBIT

Key statistics

Satellite SL-8 R/B at a glance.

Uptime

14068

Days in orbit

Revolutions

≈ 14.4

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.0

Latest

Satellite identification and parameters

Extended collection of information and parameters for SL-8 R/B.

Object identification

Identified? True

Debris? False

Object name: SL-8 R/B

International designator: 1987-049B

Object number (NORAD): 18096

Object ID (CCSDS): 18096

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.146 minutes

Inclination: 74.0419 deg

SMA: 7143.582 km

Apoapsis: 779.91 km

Periapsis: 750.983 km

RAAN: 289.2559 deg

Eccentricy: 0.00202463

Argument of periapsis: 57.3063 deg

Mean anomaly: 303.0039 deg

Mean motion: 14.37900221 rev/day

Mean motion (dot): 0.00000502 rev/day²

B* drag term: 0.00017469779 1/R_Earth

Two-line elements (TLE)

Creation date: Dec. 12, 2025, 10:14 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 12, 2025, 5:57 a.m. UTC

TLE line 0: 0 SL-8 R/B

TLE line 1: 1 18096U 87049B 25346.24844315 .00000502 00000-0 17470-3 0 9992

TLE line 2: 2 18096 74.0419 289.2559 0020246 57.3063 303.0039 14.37900221 16902

Live tracking on map

Real-time ground track for satellite SL-8 R/B.

In-orbit conjunctions

A list of the most updated potential collisions computed for object SL-8 R/B.

Target	Orbit	TCA	Probability of collision	Miss distance	Type
COSMOS 1867 COOLANT	LEO	2025-11-03 09:41:49	0.004342305	28.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2024-12-08 09:14:29	0.0006080706	82.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2024-09-28 16:22:15	0.0002516062	412.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2024-06-01 04:00:56	0.0003868231	114.0 (m)	DEBRIS

Associated space launch

Military communications satellite

SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 42’, on board a Kosmos-3M space rocket.

The launch took place on June 9, 1987, 2:45 p.m. from 132/1 (132L).

For more information about the launch, click the button.

Kosmos-3M | Strela-2M 42

Agency: N/A

Status: Launch Successful

Launch date: June 9, 1987, 2:45 p.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/1 (132L)

Location: Plesetsk Cosmodrome, Russian Federation

...

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