| Acronym | Meaning |
| ET | Ephemeris Time |
| WFF | Wallops Flight Facility |
| MNRAS | Monthly Notices Of The Royal Astronomical Society |
| UKST | United Kingdom Schmidt Telescope |
| IGM | InterGalactic Medium |
| PEM | Payload Electronics Module |
| MMT | Multiple Mirror Telescope |
| TPS | Thermal Protection System |
| CDA | Command And Data Acquisition |
| TKSC | Tsukuba Space Center |