Performances of the OVH magnetometer for the Danish Oersted satellite

Leti has constructed an absolute proton Overhauser magnetometer to be launched with the Danish Oersted satellite in 1997. This equipment provides high resolution and small volume characteristics for the calibration of on board vectorial magnetometers: the overall absolute resolution remains below 0.25 nT (1 /spl sigma/), for magnetic fields between 16 /spl mu/T and 54 /spl mu/T. Two models (flight and spare) have been characterized in terms of functional, environmental and EMC performances. The result is a new standard for low orbit scientific earth magnetic mapping missions.