| Acronym | Meaning |
 | GLOMR | Global Low-Orbiting Message Relay |
| STC | Stennis Test Center |
| IDA | International Dark-sky Association |
| UOSAT | University Of Surrey Satellite |
| LANL | Los Alamos National Laboratory |
| UT | Universal Time |
| EDRS | European Data Relay Satellite |
| FOLD | Federally-Owned LANDSAT Data |
| PN | Planetary Nebula |
| WSMR | White Sands Missile Range |
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