After this separation, ADEOS started turning slowly. Then, ADEOS spun down and deployed the Solar Array Paddle, and automatically established a three axis stabilized attitude. ADEOS deployed an IOCS unit, the NSCAT antennae, and OCTS's radiant cooler cover by commands sent from the ground station. Next, all sensors and units were checked, and then ADEOS was maneuvered into its proper orbit. ADEOS was placed into a sun synchronous, subrecurrent orbit.
 

In its operational phase, ADEOS was operated by an observation plan made at the ground station. The command plans for operations was sent from the ground station once or twice a week. The On-Board Computer carried out the commands of the plans. The data gathered by the sensors were transferred to the ground stations directly or recorded by the Misson Data Recorder and reproduced later. ADEOS had an IOCS unit, which allowed data to also be transmitted through a relay satellite.