| Acronym | Meaning |
| ETM | Enhanced Thematic Mapper |
| BC | Bolometric Correction |
| HDM | Hot Dark Matter |
| ICE | International Cometary Explorer |
| CDM | Cold Dark Matter |
| ORFEUS | Orbiting And Retrievable Far And Extreme Ultraviolet Spectrometer |
| ISZ | Iskusstvenniy Sputnik Zemli |
| CCAFS | Cape Canaveral Air Force Station |
| IDL | Interactive Data Language |
| GUGK | Glavnoye Upravileniye Geodesii I Kartografii |