SMOKA provides public science data obtained at Subaru Telescope, 188cm telescope at Okayama Astrophysical Observatory, 105cm Schmidt telescope at Kiso Observatory (University of Tokyo), MITSuME, and KANATA Telescope at Higashi-Hiroshima Observatory. It is intended mainly for astronomical researchers.
SMOKA has been developed and maintained by Astronomical Data Archives Center (ADAC), Astronomy Data Center (ADC), National Astronomical Observatory of Japan (NAOJ).