picture of the encyclopedia
previous next
Version 0.81 comes with a new web design! Please allow popups for navigation.


Whale Ecology Observation Satellite, also called Kantakun.


Designation 27599 / 02056C
Launch date 14 Dec 2002
Country of origin Japan
Mission Scientific: ecology
Perigee/Apogee 800 km, sun-synchronous
Inclination 98.7°
Period 100.8 min
Launch vehicle H2A #11

Owned by the Chiba Institute of Technology, Japan.

The satellite tracks whales which have transponders attached. These devices have a data recorder for GPS position, sea temperature and depth. Data is transferred when the whale surfaces and the spacecraft is overhead.

External resources

sat-index articles


Technical data


Prime contractor Chiba Institute of Technology
Mass at launch 58 kg
Mass in orbit  
Dimension 50 cm cube
Solar array  
Stabilization 3 m gravity gradient
DC power  
Design lifetime  

Has an S-band payload for TT&C
Communications with the devices in UHF

© TBS Internet, all rights reserved. All reproduction, copy or mirroring prohibited. Legal notice
francais anglais contact