CZ-4B R/B

Satellite information

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Satellite Type and Status

ROCKET BODYIN ORBIT

Key statistics

Satellite CZ-4B R/B at a glance.

Uptime

2450

Days in orbit

Revolutions

≈ 14.3

Per day

Orbit

SSO

Sun Synchronous Orbit

Inclination

99.4

Latest

Satellite identification and parameters

Extended collection of information and parameters for CZ-4B R/B.

Object identification

Identified? True

Debris? False

Object name: CZ-4B R/B

International designator: 2018-081B

Object number (NORAD): 43656

Object ID (CCSDS): 43656

Country: PEOPLES REPUBLIC OF CHINA (PRC)

Current information (Y/N): Y

RCS size: LARGE

Orbital parameters

Period: 100.583 minutes

Inclination: 99.3931 deg

SMA: 7164.337 km

Apoapsis: 933.273 km

Periapsis: 639.131 km

RAAN: 74.1818 deg

Eccentricy: 0.0205282

Argument of periapsis: 177.7828 deg

Mean anomaly: 182.4312 deg

Mean motion: 14.31656315 rev/day

Mean motion (dot): 0.00000055 rev/day2

B* drag term: 0.000033713 1/REarth

Two-line elements (TLE)

Creation date: July 8, 2025, 2:27 a.m.

Reference frame: TEME

Reference center: EARTH

Epoch: July 7, 2025, 10:37 p.m. UTC

TLE line 0: 0 CZ-4B R/B

TLE line 1: 1 43656U 18081B 25188.94280965 .00000055 00000-0 33713-4 0 9990

TLE line 2: 2 43656 99.3931 74.1818 0205282 177.7828 182.4312 14.31656315350046

Live tracking on map

Real-time ground track for satellite CZ-4B R/B.

In-orbit conjunctions

A list of the most updated potential collisions computed for object CZ-4B R/B.

Target Orbit TCA Probability of collision Miss distance Type
COSMOS 2251 DEB LEO 2024-10-20 07:06:09 0.0001490344 238.0 (m) DEBRIS
IRIDIUM 33 DEB LEO 2024-08-06 14:37:32 0.000814597 57.0 (m) DEBRIS
FENGYUN 1C DEB SSO 2024-07-25 15:44:19 0.0001013464 996.0 (m) DEBRIS

Associated space launch

Haiyang is a series of Chinese marine remote sensing satellites. Haiyang 2B is a follow up to Haiyang 2A satellite. It is intended for monitoring the dynamic ocean environnement with microwave sensors to detect sea surface wind field, sea surface height and sea surface temperature.

CZ-4B R/B was lifted into orbit during the mission ‘Long March 4B | Haiyang 2B’, on board a Long March 4B space rocket.

The launch took place on Oct. 24, 2018, 10:57 p.m. from Launch Complex 9.

For more information about the launch, click the button.

Launch to space Long March 4B | Haiyang 2B
Long March 4B | Haiyang 2B

Agency: N/A

Status: Launch Successful

Launch date: Oct. 24, 2018, 10:57 p.m. UTC

Rocket: Long March 4B

Launch pad: Launch Complex 9

Location: Taiyuan Satellite Launch Center, People's Republic of China

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