An application form of the MDAS is on https://www.adc.nao.ac.jp/MDAS/appl/id_e.html. Please refer to regulations for use of the MDAS (sea Section 2) before applying. Account registration will be carried out after you submit the application and a usage permit will be mailed to the postal address, but it might take some time before it is delivered. Moreover, you can also receive the usage permit at the ADC open-use help desk.
3.1 Application of the MDAS user account