| 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 |