Instrument Location Service ivo://helio-vo.eu/ils/table/ils_master_info HELIO UCL HELIO Archivist archivist@helio-vo.eu HELIO, ILS, instrument location Database of the location of observatories/instruments http://helio-vo.eu/documents/help/more/services-infotext.html#ils Catalog Research served-by ivo://helio-vo.eu/ils ils_master_info ils_master_info target_obj_id int target_obj char object_type char central_body char coordinates char time_start char time_end char cadence double table_name char info_source char