Key statistics
Satellite YAOGAN-40 01B at a glance.
Uptime
769
Days in orbit
Revolutions
≈ 14.1
Per day
Orbit
LEO
Low Earth Orbit
Inclination
86.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for YAOGAN-40 01B.
Object identification
Identified? True
Debris? False
Object name: YAOGAN-40 01B
International designator: 2023-139C
Object number (NORAD): 57832
Object ID (CCSDS): 57832
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 101.956 minutes
Inclination: 85.9968 deg
SMA: 7229.381 km
Apoapsis: 852.53 km
Periapsis: 849.962 km
RAAN: 8.6127 deg
Eccentricy: 0.00017762
Argument of periapsis: 103.2421 deg
Mean anomaly: 256.896 deg
Mean motion: 14.12378484 rev/day
Mean motion (dot): 0.00000234 rev/day2
B* drag term: 0.00011681261 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 18, 2025, 12:11 a.m. UTC
TLE line 0: 0 YAOGAN-40 01B
TLE line 1: 1 57832U 23139C 25291.00781291 .00000234 00000-0 11681-3 0 9999
TLE line 2: 2 57832 85.9968 8.6127 0001776 103.2421 256.8960 14.12378484108524
Live tracking on map
Real-time ground track for satellite YAOGAN-40 01B.
In-orbit conjunctions
There are no conjunctions computed for YAOGAN-40 01B, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
3 Chinese reconnaissance satellites of unknown purposes, officially reported as for "Electromagnetic environment probing" purposes.
YAOGAN-40 01B was lifted into orbit during the mission ‘Long March 6A | Yaogan 40’, on board a Long March 6A space rocket.
The launch took place on Sept. 10, 2023, 4:30 a.m. from Launch Complex 9A.
For more information about the launch, click the button.
Long March 6A | Yaogan 40
Agency: N/A
Status: Launch Successful
Launch date: Sept. 10, 2023, 4:30 a.m. UTC
Rocket: Long March 6A
Launch pad: Launch Complex 9A
Location: Taiyuan Satellite Launch Center, People's Republic of China
...
Latest news about this satellite
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