Global maps of the spatial and frequency distributions of ELF, VLF, and HF waves in the magnetosphere are needed to evaluate quantitatively the sources and losses of energetic particles trapped in the geomagnetic field. The first step is to identify all magnetospheric missions that carried instrumentation to study the electromagnetic environment of the Earth; the second step is to determine the types and the characteristics of the waves observed in space during the past three decades. The next step is to find out where the mission data have been stored and archived and to determine if they are accessible and usable. The status of this survey is reported here.