Resolution No.5 (1987): High-accuracy magnetic field measurement by satellites

IAGA, recognising that seven years have passed since the acquisition of satellite magnetic field data suitable for high accuracy modelling of the Earth's main field and recognising that such data are crucial for study of the properties of the Earth's core and lower mantle and of the coupling between the two and noting that attempts to use satellite data of lesser quality have not been satisfactory, urges most strongly the national and international space agencies to give the highest priority to missions using the best possible magnetometers and attitude control.