| Acronym | Meaning |
| ESU | Electrostatic Unit |
| ASTIA | Armed Services Technical Information Agency |
| ICS | Interdisciplinary Climate Systems |
| HAPEX | Hydrological Atmospheric Pilot Experiment |
| ACWP | Actual Cost Of Work Performed |
| FPA | Focal Plane Assembly |
| NASAO | National Association Of State Aeronautics And Organizations |
| TCS | Thermal Control System |
| FCC | Federal Communications Commission |
| MPIF | Message Passing Interface Forum |