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

20094

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: 1970-086B

Object number (NORAD): 4589

Object ID (CCSDS): 4589

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 99.78 minutes

Inclination: 74.059 deg

SMA: 7126.172 km

Apoapsis: 763.178 km

Periapsis: 732.896 km

RAAN: 77.6825 deg

Eccentricy: 0.00212467

Argument of periapsis: 245.0686 deg

Mean anomaly: 114.8263 deg

Mean motion: 14.43172644 rev/day

Mean motion (dot): 0.00000756 rev/day2

B* drag term: 0.0002323291 1/REarth

Two-line elements (TLE)

Creation date: Oct. 21, 2025, 3:26 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 20, 2025, 8:23 p.m. UTC

TLE line 0: 0 SL-8 R/B

TLE line 1: 1 04589U 70086B 25293.84978893 .00000756 00000-0 23233-3 0 9998

TLE line 2: 2 04589 74.0590 77.6825 0021247 245.0686 114.8263 14.43172644885995

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 2025-08-24 02:24:00 0.0001113455 126.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2025-05-25 15:07:54 0.0009365893 91.0 (m) DEBRIS
COSMOS 2251 DEB LEO 2025-05-21 00:52:47 0.001372994 93.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2025-01-19 03:09:35 0.0005827961 57.0 (m) DEBRIS
NOAA 16 DEB SSO 2024-11-22 20:09:26 0.0001516261 323.0 (m) DEBRIS

Associated space launch

Military communications satellite

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

The launch took place on Oct. 16, 1970, 2:59 p.m. from 132/1 (132L).

For more information about the launch, click the button.

Launch to space Kosmos-3M | Strela-2M 2
Kosmos-3M | Strela-2M 2

Agency: N/A

Status: Launch Successful

Launch date: Oct. 16, 1970, 2:59 p.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/1 (132L)

Location: Plesetsk Cosmodrome, Russian Federation

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