| Acronym | Meaning |
 | RNGC | Revised New General Catalog |
| HRSI | High-temperature Reusable Surface Insulation |
| SEM | Space Environment Monitor |
| APM | Atmospheric Particle Monitor |
| CSIRO | Commonwealth Scientific And Industrial Research Organization |
| UGC | Uppsala General Catalog |
| LGM | Little Green Men |
| APL | Applied Physics Laboratory (at Johns Hopkins) |
| SSME | Space Shuttle Main Engine |
| AIRS | Atmospheric Infrared Sounder |
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