| Acronym | Meaning |
| MAS | Millimeter-wave Atmospheric Sounder |
| VECO | Vernier Engine Cutoff |
| MSFC | Marshall Space Flight Center |
| AACS | Attitude And Articulation Control Subsystem |
| STSCI | Space Telescope Science Institute |
| INCO | Integrated Communications Officer |
| FFT | Fast Fourier Transform |
| LDEF | Long Duration Exposure Facility |
| CATS | Cheap Access To Space |
| OMS | Orbital Maneuvering System |