| Acronym | Meaning |
 | DCX | Delta Clipper EXperimental |
| MLI | Multi-Layer Insulation |
| TRMM | Tropical Rainfall Measuring Mission |
| NRO | National Reconnaissance Office |
| ENAC | Energetic Neutral Atom Camera |
| DMSP | Defense Meteorological Satellite Program |
| M | Messier |
| SPAN | Space Physics And Analysis Network |
| SCT | Schmidt-Cassegrain Telescope |
| CNES | Centre National D'Etude Spatiales |
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