Resolution No.3 (1987): Continuous monitoring of Earth's ionised environment

IAGA, recognising the importance of monitoring factors governing the Earth's ionised environment over periods as long as the 11 year solar cycle and in particular noting the recently established ability to monitor ion composition in near-Earth space and noting the diminishing number of spacecraft flight opportunities, urges those agencies with active spacecraft to make a concerted effort to continue tracking them and acquiring data from them.