| Acronym | Meaning |
| APJ | Astrophysical Journal |
| ET | Ephemeris Time |
| UOSAT | University Of Surrey Satellite |
| DAO | Dominion Astrophysical Observatory |
| ASE | Advanced Space Engine |
| SOB | Strap-On Booster |
| GUGK | Glavnoye Upravileniye Geodesii I Kartografii |
| WUPPE | Wisconsin Ultraviolet PhotoPolarimter Experiment |
| CSTC | Consolidated Satellite Test Center |
| VAS | VISSR Atmospheric Sounder |