| Acronym | Meaning |
 | ISAMS | Improved Stratospheric And Mesospheric Sounder |
| WFF | Wallops Flight Facility |
| VLBI | Very Long Baseline Interferometry |
| ATDRS | Advanced Tracking And Data Relay Satellite |
| WD | White Dwarf |
| RF | Radio Frequency |
| OCST | Office Of Commercial Space Transportation |
| ESOC | European Space Operations Centre |
| VVS | Voenno-Vosdushniye Sili |
| GCVS | General Catalog Of Variable Stars |
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