| Acronym | Meaning |
| MSIS | Mass Spectrometer And Incoherent Scatter |
| IDASS | Integrated Data Assimilation/Sounding System |
| MDC | Modified Direct Costs |
| ICO | Initial Operating Capability |
| B | Byte |
| ANL-E | Argonne National Laboratory-East |
| M&V | Magnetism & Volcanoes |
| DPMB | Defense Programs Management Board |
| SRRS | Service Record Retention System |
| OPENDAP | Open-source Project For A Network Data Access Protocol |