| Acronym | Meaning |
| DEM | Digital Elevation Model |
| ESG | Empirical Study Group |
| OSF | Operational Support Facility |
| HP | Hewlett-Packard |
| ACO | Advance Change Order |
| ENACEOS | Energetic Neutral Atom Camera For EOS |
| ASASP | Active Scattering Aerosol Spectrometer |
| PSIG | Pounds Per Square Inch Gage |
| TOPCAT | A Clear Air Turbulence Measurement Program |
| FTFC | Fourier Transform Flow Cytometer |