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

18119

Days in orbit

Revolutions

≈ 14.4

Per day

Orbit

LEO

Low Earth Orbit

Inclination

74.1

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: 1975-112B

Object number (NORAD): 8459

Object ID (CCSDS): 8459

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.137 minutes

Inclination: 74.0611 deg

SMA: 7143.147 km

Apoapsis: 777.051 km

Periapsis: 752.973 km

RAAN: 112.1962 deg

Eccentricy: 0.0016854

Argument of periapsis: 264.8058 deg

Mean anomaly: 95.1172 deg

Mean motion: 14.38031511 rev/day

Mean motion (dot): 0.00000189 rev/day²

B* drag term: 0.000071178 1/R_Earth

Two-line elements (TLE)

Creation date: July 6, 2025, 6:05 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: July 6, 2025, 5:56 a.m. UTC

TLE line 0: 0 SL-8 R/B

TLE line 1: 1 08459U 75112B 25187.24776280 .00000189 00000-0 71178-4 0 9997

TLE line 2: 2 08459 74.0611 112.1962 0016854 264.8058 95.1172 14.38031511596446

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
ARIANE 40 R/B	SSO	2025-06-25 19:04:12	0.000127449	605.0 (m)	ROCKET BODY
FENGYUN 1C DEB	SSO	2025-03-04 05:24:48	0.0001451734	369.0 (m)	DEBRIS
NOAA 16 DEB	SSO	2024-11-21 07:55:58	0.000274172	86.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2024-11-10 18:59:35	0.001500462	487.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2024-09-01 15:29:29	0.0001285141	156.0 (m)	DEBRIS

Associated space launch

Military communications satellite

SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 11’, on board a Kosmos-3M space rocket.

The launch took place on Nov. 28, 1975, 12:10 a.m. from 132/1 (132L).

For more information about the launch, click the button.

Kosmos-3M | Strela-2M 11

Agency: N/A

Status: Launch Successful

Launch date: Nov. 28, 1975, 12:10 a.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/1 (132L)

Location: Plesetsk Cosmodrome, Russian Federation

...

Go to the launch

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