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

8779

Days in orbit

Revolutions

≈ 2.1

Per day

Orbit

MEO

Medium Earth Orbit

Inclination

64.0

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: 2001-053F

Object number (NORAD): 26992

Object ID (CCSDS): 26992

Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 674.171 minutes

Inclination: 63.9896 deg

SMA: 25468.701 km

Apoapsis: 19135.244 km

Periapsis: 19045.887 km

RAAN: 62.591 deg

Eccentricy: 0.00175425

Argument of periapsis: 266.8069 deg

Mean anomaly: 147.1601 deg

Mean motion: 2.13595736 rev/day

Mean motion (dot): -0.00000042 rev/day2

B* drag term: 0.0 1/REarth

Two-line elements (TLE)

Creation date: Dec. 9, 2025, 5:41 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: Dec. 9, 2025, 8:52 a.m. UTC

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

TLE line 1: 1 26992U 01053F 25343.36970778 -.00000042 00000-0 00000-0 0 9998

TLE line 2: 2 26992 63.9896 62.5910 0017542 266.8069 147.1601 2.13595736187445

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
COSMOS 2382 (GLONASS) MEO 2025-11-01 23:09:22 TBA 2639.0 (m) PAYLOAD
COSMOS 1711 (GLONASS) MEO 2025-10-25 21:51:29 TBA 3402.0 (m) PAYLOAD
SL-12 R/B(2) MEO 2025-09-29 16:37:34 TBA 3843.0 (m) ROCKET BODY
SL-12 R/B(2) MEO 2025-08-13 10:27:35 TBA 3005.0 (m) ROCKET BODY

Associated space launch

GLONASS navigation satellites

SL-12 R/B(2) was lifted into orbit during the mission ‘Proton | Uragan 78, 79 & Uragan-M 1’, on board a Proton space rocket.

The launch took place on Dec. 1, 2001, 6:04 p.m. from 81/24 (81P).

For more information about the launch, click the button.

Launch to space Proton | Uragan 78, 79 & Uragan-M 1
Proton | Uragan 78, 79 & Uragan-M 1

Agency: N/A

Status: Launch Successful

Launch date: Dec. 1, 2001, 6:04 p.m. UTC

Rocket: Proton

Launch pad: 81/24 (81P)

Location: Baikonur Cosmodrome, Republic of Kazakhstan

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