| Acronym | Meaning |
 | TWTA | Travelling Wave Tube Amplifier |
| ISO | International Standards Organization |
| HIRIS | High Resolution Imaging Spectrometer |
| OSS | Office Of The Space Station |
| CRISTA | Cryogenic Infrared Spectrometer Telescope For Atmosphere |
| NRO | National Reconnaissance Office |
| NIST | National Institute For Standards And Technology |
| JEM | Japanese Experiment Module |
| ARISTOTELES | Applications And Research Involving Space Technologies Observing The Earth's Field From Low Earth Orbiting Satellite |
| APM | Atmospheric Particle Monitor |
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