Key statistics
Satellite CZ-3B R/B at a glance.
Uptime
33
Days in orbit
Revolutions
≈ 2.4
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
27.2
Latest
Satellite identification and parameters
Extended collection of information and parameters for CZ-3B R/B.
Object identification
Identified? True
Debris? False
Object name: CZ-3B R/B
International designator: 2025-084B
Object number (NORAD): 63663
Object ID (CCSDS): 63663
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 600.545 minutes
Inclination: 27.2216 deg
SMA: 23578.914 km
Apoapsis: 34223.68 km
Periapsis: 177.878 km
RAAN: 80.4285 deg
Eccentricy: 0.7219544
Argument of periapsis: 197.9165 deg
Mean anomaly: 109.0462 deg
Mean motion: 2.3978227 rev/day
Mean motion (dot): 0.000559 rev/day2
B* drag term: 0.0022264 1/REarth
Two-line elements (TLE)
Creation date: May 28, 2025, 4:13 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 27, 2025, 4:11 a.m. UTC
TLE line 0: 0 CZ-3B R/B
TLE line 1: 1 63663U 25084B 25147.17489558 .00055900 11066-5 22264-2 0 9995
TLE line 2: 2 63663 27.2216 80.4285 7219544 197.9165 109.0462 2.39782270 702
Live tracking on map
Real-time ground track for satellite CZ-3B R/B.
In-orbit conjunctions
There are no conjunctions computed for CZ-3B R/B, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Tianlian is a Chinese data tracking and relay communications geostationary satellite series. The TL 2 (Tian Lian 2) satellites represent the second generation of this relay satellite network, and is based on the DFH-4 Bus, a three-axis-stabilized telecommunications satellite platform. TL 2 will be used to support real-time communications between orbiting satellites and ground control stations. This system will replace the current network of ground-based space tracking and telemetry stations and space tracking ships.
CZ-3B R/B was lifted into orbit during the mission ‘Long March 3B/E | Tianlian 2-05’, on board a Long March 3 space rocket.
The launch took place on April 27, 2025, 3:54 p.m. from Launch Complex 2 (LC-2).
For more information about the launch, click the button.
Long March 3B/E | Tianlian 2-05
Agency: N/A
Status: Launch Successful
Launch date: April 27, 2025, 3:54 p.m. UTC
Rocket: Long March 3
Launch pad: Launch Complex 2 (LC-2)
Location: Xichang Satellite Launch Center, People's Republic of China
...
Latest news about this satellite
Long March 3B launches Tianlian-2 (05) satellite to boost space data relay network
China added a new satellite to its geostationary Tianlian data tracking and relay communications satellite series Sunday with its latest launch. The post Long March 3B launches Tianlian-2 (05) satellite to boost space data relay network appeared first on...
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