Key statistics
Satellite WEOS at a glance.
Uptime
8400
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: 100.647 minutes
Inclination: 98.791 deg
SMA: 7167.371 km
Apoapsis: 796.617 km
Periapsis: 781.856 km
RAAN: 306.2703 deg
Eccentricy: 0.00102971
Argument of periapsis: 136.1249 deg
Mean anomaly: 224.0753 deg
Mean motion: 14.30747195 rev/day
Mean motion (dot): 0.00000321 rev/day2
B* drag term: 0.00013983427 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 9 p.m. UTC
TLE line 0: 0 WEOS
TLE line 1: 1 27599U 02056C 25345.87546434 .00000321 00000-0 13983-3 0 9998
TLE line 2: 2 27599 98.7910 306.2703 0010297 136.1249 224.0753 14.30747195199568
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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