| Acronym | Meaning |
 | GSC | Guide Star Catalog |
| NASA | National Aeronautics And Space Administration |
| DSO | Detailed Supplementary Objective |
| EPD | Energetic Particles Detector |
| EDOMP | EDO Medical Project |
| FUSE | Far Ultraviolet Spectroscopic Explorer |
| AAVSO | American Association Of Variable Star Observers |
| VLBA | Very Long Baseline Array |
| CERES | Clouds And Earth's Radiant Energy System |
| GAS | Get-Away Special |
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