| Acronym | Meaning |
 | FIRAS | Far InfraRed Absolute Spectrophotometer |
| ATMOS | Atmospheric Trace Molecule Spectroscopy |
| FHST | Fixed Head Star Trackers |
| ATM | Amateur Telescope Maker |
| GMT | Greenwich Mean Time |
| NRAO | National Radio Astronomy Observatory |
| OARE | Orbital Acceleration Research Experiment |
| MODIS-N | MODIS-Nadir |
| TDRSS | Tracking And Data Relay Satellite System |
| ASI | Agenzia Spaziale Italiano |
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