| Acronym | Meaning |
 | ACR | Active Cavity Radiometer |
| PEM | Particle Environment Monitor |
| NOAA | National Oceanic And Atmospheric Administration |
| BFC | Backup Flight Computer |
| CITE | Cargo Integration Test Equipment |
| OSSE | Oriented Scintillation Spectrometer Experiment |
| ISZ | Iskusstvenniy Sputnik Zemli |
| THIR | Temperature/Humidity Infrared Radiometer |
| CLAES | Cryogenic Limb Array Etalon Spectrometer |
| VTVL | Vertical Takeoff Vertical Landing |
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