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

16123

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: 1981-084B

Object number (NORAD): 12792

Object ID (CCSDS): 12792

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.076 minutes

Inclination: 74.0298 deg

SMA: 7140.267 km

Apoapsis: 770.93 km

Periapsis: 753.335 km

RAAN: 185.1786 deg

Eccentricy: 0.00123214

Argument of periapsis: 91.661 deg

Mean anomaly: 268.5956 deg

Mean motion: 14.38901448 rev/day

Mean motion (dot): 0.0000042 rev/day²

B* drag term: 0.00014476944 1/R_Earth

Two-line elements (TLE)

Creation date: Oct. 19, 2025, 2:20 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 18, 2025, 11:48 p.m. UTC

TLE line 0: 0 SL-8 R/B

TLE line 1: 1 12792U 81084B 25291.99221890 .00000420 00000-0 14477-3 0 9993

TLE line 2: 2 12792 74.0298 185.1786 0012321 91.6610 268.5956 14.38901448312493

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
IRIDIUM 33 DEB	LEO	2025-08-01 19:03:26	0.0001030757	656.0 (m)	DEBRIS
COSMOS 2251 DEB	LEO	2025-05-11 02:21:59	0.004913218	34.0 (m)	DEBRIS
NOAA 17 DEB	SSO	2025-03-08 17:01:45	0.0001117264	244.0 (m)	DEBRIS
THOR BURNER 2 R/B	SSO	2024-12-20 10:49:12	0.0005628832	142.0 (m)	ROCKET BODY
CZ-6A DEB	LEO	2024-10-12 05:44:58	0.0002329003	434.0 (m)	DEBRIS

Associated space launch

Military communications satellite

SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 25’, on board a Kosmos-3M space rocket.

The launch took place on Aug. 28, 1981, 4:18 p.m. from 132/1 (132L).

For more information about the launch, click the button.

Kosmos-3M | Strela-2M 25

Agency: N/A

Status: Launch Successful

Launch date: Aug. 28, 1981, 4:18 p.m. UTC

Rocket: Kosmos-3M

Launch pad: 132/1 (132L)

Location: Plesetsk Cosmodrome, Russian Federation

...

Go to the launch

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