CANOPUS Meridian Photometer Array (MPA)

The CANOPUS Meridian Photometer Array (MPA) was a ground-based photometer array for remote sensing the high latitude ionosphere during the ISTP/GGS program. The array comprises four meridian scanning photometers. The eastern line of three instruments were located close to the 337' magnetic longitude meridian; one instrument to the west was located near to the 313' magnetic longitude meridian. The CANOPUS program has been superseded by the CARISMA (Canadian Array for Realtime Investigations of Magnetic Activity).

CANOPUS子午线光度计阵列（MPA）系一项地面安装的光度计阵列，旨在ISTP/GGS计划期间对高纬度电离层进行遥感探测。该阵列由四台子午线扫描光度计组成。其中三台仪器位于337'磁子午线附近；一台向西的仪器则位于313'磁子午线附近。CANOPUS计划已被CARISMA（加拿大实时磁活动调查阵列）所取代。