SL-12 R/B(2)

Satellite information

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Satellite Type and Status

ROCKET BODYIN ORBIT

Key statistics

Satellite SL-12 R/B(2) at a glance.

Uptime

12742

Days in orbit

Revolutions

≈ 2.1

Per day

Orbit

MEO

Medium Earth Orbit

Inclination

64.8

Latest

Satellite identification and parameters

Extended collection of information and parameters for SL-12 R/B(2).

Object identification

Identified? True

Debris? False

Object name: SL-12 R/B(2)

International designator: 1990-110F

Object number (NORAD): 21011

Object ID (CCSDS): 21011

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 675.226 minutes

Inclination: 64.7974 deg

SMA: 25495.281 km

Apoapsis: 19131.011 km

Periapsis: 19103.281 km

RAAN: 78.5008 deg

Eccentricy: 0.00054382

Argument of periapsis: 243.9993 deg

Mean anomaly: 116.2792 deg

Mean motion: 2.13261794 rev/day

Mean motion (dot): 0.00000018 rev/day²

B* drag term: 0.0 1/R_Earth

Two-line elements (TLE)

Creation date: Oct. 26, 2025, 2:54 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Oct. 25, 2025, 11:27 a.m. UTC

TLE line 0: 0 SL-12 R/B(2)

TLE line 1: 1 21011U 90110F 25298.47759297 .00000018 00000-0 00000-0 0 9991

TLE line 2: 2 21011 64.7974 78.5008 0005438 243.9993 116.2792 2.13261794271699

Live tracking on map

Real-time ground track for satellite SL-12 R/B(2).

In-orbit conjunctions

A list of the most updated potential collisions computed for object SL-12 R/B(2).

Target	Orbit	TCA	Probability of collision	Miss distance	Type
SL-12 R/B(2)	MEO	2025-09-17 19:01:02	TBA	1471.0 (m)	ROCKET BODY
SL-12 R/B(2)	MEO	2025-08-13 10:27:35	TBA	3005.0 (m)	ROCKET BODY
SL-12 R/B(2)	MEO	2025-04-20 23:24:38	TBA	4730.0 (m)	ROCKET BODY
SL-12 R/B(2)	MEO	2024-08-10 14:46:15	TBA	4069.0 (m)	ROCKET BODY
COSMOS 2080 (GLONASS)	MEO	2024-07-03 18:57:53	TBA	1269.0 (m)	PAYLOAD

Associated space launch

GLONASS navigation satellites

SL-12 R/B(2) was lifted into orbit during the mission ‘Proton | Uragan 39 to 41’, on board a Proton space rocket.

The launch took place on Dec. 8, 1990, 2:43 a.m. from 200/40.

For more information about the launch, click the button.

Proton | Uragan 39 to 41

Agency: N/A

Status: Launch Successful

Launch date: Dec. 8, 1990, 2:43 a.m. UTC

Rocket: Proton

Launch pad: 200/40

Location: Baikonur Cosmodrome, Republic of Kazakhstan

...

Go to the launch

Latest news about this satellite

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