1. Name of Database: Solar-Terrestrial Data 2. Institution: Department of Environmental Sciences, Ibaraki University 3. Contents of Database: The Data Analysis Center on STE( Solar-Terrestrial Environment ) Events, Ibaraki University collects the solar-terrestrial environment observations from the domestic universities and research institutes and assembles them to use STE event analysis meeting and the coordinated data analysis workshop. This project is operated through the collaboration of Ibaraki University, Solar-Terrestrial Environment Laboratory, Nagoya University, and Communications Research Laboratory. 5. Contact: Department of Environmental Sciences Ibaraki University 2-1-1 Bunkyo, Mito, Ibaraki, 310-8512, Japan Takashi Watanabe TEL: 029-228-8399 FAX: 029-228-8405 E-mail: watanabe[AT]env.sci.ibaraki.ac.jp 6. Public Offering of Database: