Key statistics
Satellite WEOS at a glance.
Uptime
8345
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for WEOS.
Object identification
Identified? True
Debris? False
Object name: WEOS
International designator: 2002-056C
Object number (NORAD): 27599
Object ID (CCSDS): 27599
Country: JAPAN (JPN)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 100.65 minutes
Inclination: 98.7813 deg
SMA: 7167.507 km
Apoapsis: 795.671 km
Periapsis: 783.072 km
RAAN: 250.659 deg
Eccentricy: 0.00087886
Argument of periapsis: 306.4439 deg
Mean anomaly: 53.5933 deg
Mean motion: 14.30706674 rev/day
Mean motion (dot): 0.00000314 rev/day2
B* drag term: 0.0001374073 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 8:05 p.m. UTC
TLE line 0: 0 WEOS
TLE line 1: 1 27599U 02056C 25290.83719140 .00000314 00000-0 13741-3 0 9993
TLE line 2: 2 27599 98.7813 250.6590 0008789 306.4439 53.5933 14.30706674191690
Live tracking on map
Real-time ground track for satellite WEOS.
In-orbit conjunctions
A list of the most updated potential collisions computed for object WEOS.
Associated space launch
Midori II has been engaged in various observation missions to understand the realities and causes of global environmental changes, such as abnormal weather conditions and the expansion of the ozone hole.
WEOS was lifted into orbit during the mission ‘H-IIA 202 | Midori-2’, on board a H-IIA space rocket.
The launch took place on Dec. 14, 2002, 1:31 a.m. from Yoshinobu Launch Complex LP-1.
For more information about the launch, click the button.
H-IIA 202 | Midori-2
Agency: N/A
Status: Launch Successful
Launch date: Dec. 14, 2002, 1:31 a.m. UTC
Rocket: H-IIA
Launch pad: Yoshinobu Launch Complex LP-1
Location: Tanegashima Space Center, Japan
...
Latest news about this satellite
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