| Acronym | Meaning |
 | FWS | Filter Wedge Spectrometer |
 | DOPLIGHT | Doppler And Lightning Program |
 | FPA | Focal Plane Assembly |
 | FIRE | First ISLSCP Regional Experiment |
 | GLAS | Goddard Laboratory For Atmospheric Science |
 | NSI | NASA Science Internet |
 | ISTP | International Solar Terrestrial Program |
 | ELF | Extremely Low Frequency |
 | FPMD | Facilities And Property Management Division |
 | TECOM | Test And Evaluation Command |