| Acronym | Meaning |
 | AAVSO | American Association Of Variable Star Observers |
| SOLSTICE | Solar Stellar Irradiance Comparison Experiment |
| FEM | Flight-Engineering Model |
| VPF | Vertical Processing Facility |
| UHF | Ultra High Frequency |
| CHARA | Center For High Angular Resolution Astronomy |
| MOMV | Manned Orbital Maneuvering Vehicle |
| IGY | International Geophysical Year |
| NIMS | Near Infrared Mapping Spectrometer |
| ISAMS | Improved Stratospheric And Mesospheric Sounder |
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