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

16811

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: 1979-060B

Object number (NORAD): 11427

Object ID (CCSDS): 11427

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.093 minutes

Inclination: 74.017 deg

SMA: 7141.077 km

Apoapsis: 776.827 km

Periapsis: 749.057 km

RAAN: 6.0555 deg

Eccentricy: 0.0019444

Argument of periapsis: 164.0177 deg

Mean anomaly: 196.1595 deg

Mean motion: 14.38656734 rev/day

Mean motion (dot): 0.00000138 rev/day²

B* drag term: 0.000053455 1/R_Earth

Two-line elements (TLE)

Creation date: July 6, 2025, 10:26 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: July 6, 2025, 9:22 p.m. UTC

TLE line 0: 0 SL-8 R/B

TLE line 1: 1 11427U 79060B 25187.89061250 .00000138 00000-0 53455-4 0 9999

TLE line 2: 2 11427 74.0170 6.0555 0019444 164.0177 196.1595 14.38656734410665

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
NOAA 16 DEB	SSO	2025-06-21 22:59:48	0.0001364694	870.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2025-06-15 00:24:17	0.0004071968	51.0 (m)	DEBRIS
CZ-6A DEB	LEO	2025-05-18 06:05:42	0.0002436521	302.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2025-05-04 13:23:15	0.0001567946	147.0 (m)	DEBRIS
SL-8 R/B	LEO	2024-06-12 08:48:44	0.0001804504	123.0 (m)	ROCKET BODY

Associated space launch

Military communications satellite

SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 20’, on board a Kosmos-3M space rocket.

The launch took place on June 28, 1979, 8:09 p.m. from 132/1 (132L).

For more information about the launch, click the button.

Kosmos-3M | Strela-2M 20

Agency: N/A

Status: Launch Successful

Launch date: June 28, 1979, 8:09 p.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/1 (132L)

Location: Plesetsk Cosmodrome, Russian Federation

...

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