| Acronym | Meaning |
 | SSI | Solid-State Imager / Space Studies Institut |
| CTIO | Cerro Tololo Interamerican Observatory |
| SAS | Space Activity Suit / Space Adaptation Syndrome |
| STIS | Space Telescope Imaging Spectrometer |
| PVO | Pioneer Venus Orbiter / Protivo-Vosdushniya Oborona |
| OPF | Orbiter Processing Facility |
| AACS | Attitude And Articulation Control Subsystem |
| GTO | Geostationary Transfer Orbit |
| GRO | Gamma Ray Observatory |
| SDSS | Sloan Digital Sky Survey |
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