| Acronym | Meaning |
| GEO | Geosynchronous Earth Orbit |
| HR | Hertzsprung-Russell |
| ERBE | Earth Radiation Budget Experiment |
| ATCS | Active Thermal Control System |
| LPV | Long Period Variable |
| MSFC | Marshall Space Flight Center |
| CSIRO | Commonwealth Scientific And Industrial Research Organization |
| UVS | Ultraviolet Spectrometer |
| IDL | Interactive Data Language |
| PM | Pressurized Module |