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

13767

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: 1988-029B

Object number (NORAD): 19039

Object ID (CCSDS): 19039

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.007 minutes

Inclination: 74.0478 deg

SMA: 7136.988 km

Apoapsis: 774.445 km

Periapsis: 743.261 km

RAAN: 344.7789 deg

Eccentricy: 0.00218464

Argument of periapsis: 109.8656 deg

Mean anomaly: 250.4856 deg

Mean motion: 14.39893359 rev/day

Mean motion (dot): 0.00000493 rev/day²

B* drag term: 0.00016484626 1/R_Earth

Two-line elements (TLE)

Creation date: Dec. 14, 2025, 3:07 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 13, 2025, 10:35 a.m. UTC

TLE line 0: 0 SL-8 R/B

TLE line 1: 1 19039U 88029B 25347.44140360 .00000493 00000-0 16485-3 0 9995

TLE line 2: 2 19039 74.0478 344.7789 0021846 109.8656 250.4856 14.39893359976536

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
JAWSAT	SSO	2025-05-09 05:46:55	0.0004887601	355.0 (m)	PAYLOAD
HILAT	LEO	2025-02-06 17:38:29	0.00015556	628.0 (m)	PAYLOAD
DELTA 1 DEB	SSO	2024-11-15 05:41:08	0.0002691089	939.0 (m)	DEBRIS
FENGYUN 1C DEB	SSO	2024-11-13 00:09:11	0.0001028504	544.0 (m)	DEBRIS
DMSP 5D-2 F13 DEB	SSO	2024-09-14 19:48:36	0.0002959427	292.0 (m)	DEBRIS

Associated space launch

Military communications satellite

SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 44’, on board a Kosmos-3M space rocket.

The launch took place on April 5, 1988, 2:41 p.m. from 133/3 (133L).

For more information about the launch, click the button.

Kosmos-3M | Strela-2M 44

Agency: N/A

Status: Launch Successful

Launch date: April 5, 1988, 2:41 p.m. UTC

Rocket: Kosmos-3M

Launch pad: 133/3 (133L)

Location: Plesetsk Cosmodrome, Russian Federation

...

Go to the launch

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