| Acronym | Meaning |
| VVS | Voenno-Vosdushniye Sili |
| CCSDS | Consultative Committee For Space Data Systems |
| LANL | Los Alamos National Laboratory |
| PMC | Permanently Manned Capability |
| EUMETSAT | European Meterological Satellite Organisation |
| FIR | Far InfraRed |
| IRAF | Image Reduction And Analysis Facility |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| RA | Right Ascension |
| MLI | Multi-Layer Insulation |