SL-3 R/B

Satellite information

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Satellite Type and Status

ROCKET BODYIN ORBIT

Key statistics

Satellite SL-3 R/B at a glance.

Uptime

18422

Days in orbit

Revolutions

≈ 14.1

Per day

Orbit

LEO

Low Earth Orbit

Inclination

81.2

Latest

Satellite identification and parameters

Extended collection of information and parameters for SL-3 R/B.

Object identification

Identified? True

Debris? False

Object name: SL-3 R/B

International designator: 1975-023B

Object number (NORAD): 7715

Object ID (CCSDS): 7715

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 102.334 minutes

Inclination: 81.2233 deg

SMA: 7247.248 km

Apoapsis: 904.726 km

Periapsis: 833.5 km

RAAN: 194.277 deg

Eccentricy: 0.004914

Argument of periapsis: 323.4878 deg

Mean anomaly: 36.2943 deg

Mean motion: 14.07158633 rev/day

Mean motion (dot): -0.0000004 rev/day2

B* drag term: -0.000030748836 1/REarth

Two-line elements (TLE)

Creation date: Sept. 7, 2025, 3:09 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Sept. 6, 2025, 9:51 p.m. UTC

TLE line 0: 0 SL-3 R/B

TLE line 1: 1 07715U 75023B 25249.91069171 -.00000040 00000-0 -30749-4 0 9996

TLE line 2: 2 07715 81.2233 194.2770 0049140 323.4878 36.2943 14.07158633587694

Live tracking on map

Real-time ground track for satellite SL-3 R/B.

In-orbit conjunctions

A list of the most updated potential collisions computed for object SL-3 R/B.

Target Orbit TCA Probability of collision Miss distance Type
FENGYUN 1C DEB SSO 2025-08-22 00:55:24 0.0001827156 647.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2025-05-26 21:33:13 0.0001735874 417.0 (m) DEBRIS
THORAD AGENA D DEB SSO 2025-02-26 17:26:00 0.00106948 73.0 (m) DEBRIS
COSMOS 1275 DEB LEO 2024-11-17 18:28:04 0.0004539042 119.0 (m) DEBRIS
CZ-4 DEB SSO 2024-11-12 18:29:51 0.0002674438 136.0 (m) DEBRIS

Associated space launch

The Meteor-1 series was the first series of Soviet meteorological satellites.

SL-3 R/B was lifted into orbit during the mission ‘Vostok 8A92M | Meteor-1 21 (31L)’, on board a Vostok 8A92M space rocket.

The launch took place on April 1, 1975, 12:30 p.m. from 41/1.

For more information about the launch, click the button.

Launch to space Vostok 8A92M | Meteor-1 21 (31L)
Vostok 8A92M | Meteor-1 21 (31L)

Agency: N/A

Status: Launch Successful

Launch date: April 1, 1975, 12:30 p.m. UTC

Rocket: Vostok 8A92M

Launch pad: 41/1

Location: Plesetsk Cosmodrome, Russian Federation

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