| Acronym | Meaning |
 | DSS | Deep Space Station |
| SAGA | Solar Array Gain Augmentation |
| AFRSI | Advanced FRSI |
| HIRS | High Resolution Infrared Radiation Sounder |
| RG | Red Giant |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| FGS | Fine Guidance Sensors |
| SDIO | Strategic Defense Initiative Organization |
| HIRIS | High Resolution Imaging Spectrometer |
| SNR | Signal To Noise Ratio / SuperNova Remnant |
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