We have developed and started the operation of a data archive system for the stacked data, made by stacking the “astronomical movie data” along the time axis, of the Tomo-e Gozen optical wide field camera for the Kiso Schmidt telescope. We have developed this system as a derivative of SMOKA (Subaru-Mitaka-Okayama-Kiso Archive System), a data archive system we have developed and are currently operating. In developing this system, we have taken measures to cope with some technical challenges that we recognized in SMOKA. In this paper, we report the development and the configuration of this system and discuss the results of the measures and the issues for the future.

View full abstract

The number of data released by optical-infrared astronomical data archive systems has increased significantly in recent years with the advent of high-speed imaging instruments. In this paper, we investigate the effect of a huge number of data on the search speed and the database/table configuration to speed up searches in the optical-infrared astronomical observation data archive system. We conducted experiments on each search feature (pinpoint search, rough search, and calendar search) of the SMOKA/Tomo-e Gozen system, a data archive system for the Tomo-e Gozen high-speed camera.We report the results of these experiments and discuss the optimal database/table configurations for the optical-infrared astronomical data archive system with a huge number of data.

View full abstract