||Before last preparation phase (2002/7 - 2002/12/14）
- This period is a preparation period from the completion of development of the system to launch.
Phase1( 2002/12/14 - 2003/4/14)
- This period performs initial checkout of the satellite and the ground systems, processing of system adjustment and processing of level 0 data etc.
Phase2( 2003/4/14 - 2003/9 )
- This period performs adjustment of level 1 product of GLI and AMSR, and evaluation. And AMSR level 1 product can be offered to the specific researcher.
Phase3 ( 2003/9 - 2003/12 )
- This period performs adjustment and evaluation of GLI (level-2 3) or AMSR (level-2 3) products
Phase4 (2003/12 - )
- This period starts regular operation. Ordering of all products is possible.