Key statistics
Satellite CZ-4B R/B at a glance.
Uptime
1570
Days in orbit
Revolutions
≈ 14.2
Per day
Orbit
LEO
Low Earth Orbit
Inclination
66.1
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: 2021-043D
Object number (NORAD): 48624
Object ID (CCSDS): 48624
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 101.302 minutes
Inclination: 66.0656 deg
SMA: 7198.433 km
Apoapsis: 935.808 km
Periapsis: 704.788 km
RAAN: 55.8417 deg
Eccentricy: 0.01604653
Argument of periapsis: 192.8623 deg
Mean anomaly: 166.8352 deg
Mean motion: 14.21496502 rev/day
Mean motion (dot): 0.00000402 rev/day2
B* drag term: 0.00019721219 1/REarth
Two-line elements (TLE)
Creation date: Sept. 3, 2025, 10:15 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 3, 2025, 4:48 a.m. UTC
TLE line 0: 0 CZ-4B R/B
TLE line 1: 1 48624U 21043D 25246.20035296 .00000402 00000-0 19721-3 0 9999
TLE line 2: 2 48624 66.0656 55.8417 0160465 192.8623 166.8352 14.21496502222784
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.
Associated space launch
Haiyang (Chinese: "Ocean"), abbreviated HY, is a marine remote sensing satellite series planned by China.
CZ-4B R/B was lifted into orbit during the mission ‘Long March 4B | Haiyang 2D’, on board a Long March 4B space rocket.
The launch took place on May 19, 2021, 4:03 a.m. from Launch Area 4 (SLS-2 / 603).
For more information about the launch, click the button.
Long March 4B | Haiyang 2D
Agency: N/A
Status: Launch Successful
Launch date: May 19, 2021, 4:03 a.m. UTC
Rocket: Long March 4B
Launch pad: Launch Area 4 (SLS-2 / 603)
Location: Jiuquan Satellite Launch Center, People's Republic of China
...
Latest news about this satellite
China launches Haiyang-2D Oceanography Satellite from Jiuquan
A Chinese Long March 4B rocket took a Haiyang oceanography satellite to orbit early Wednesday morning. Liftoff from the Jiuquan Satellite Launch Center occurred approximately 12:03 PM local time (04:03 UTC) on 19 May.
Chinese Long March rocket launches oceanography satellite
A Long March 4B rocket successfully launched an oceanography satellite Wednesday from northwestern China, hours before officials at a different spaceport scrubbed the planned launch of a cargo ship to deliver supplies to the Chinese space station.
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