| Acronym | Meaning |
 | NSO | National Solar Observatory |
| TAU | Thousand Astronomical Unit |
| MS | Main Sequence |
| RMCD | Radaiation Monitoring Container Device |
| HLC | Heavy Lift Capability |
| ISTS | Institute For Space And Terrestrial Science |
| GISS | Goddard Institute For Space Studies |
| VLA | Very Large Array |
| ISO | Imaging Spectrometic Observatory |
| GNC | Guidance |
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