| Acronym | Meaning |
 | SLAP | Space Link Access Protocol |
| DEC | Declination |
| FGS | Fine Guidance Sensors |
| ALPO | Association Of Lunar And Planetary Observers |
| DSP | Defense Support Program |
| KAO | Kuiper Airborne Observatory |
| LN2 | Liquid Nitrogen |
| ANSI | American National Standards Institute |
| RFI | Radio Frequency Interference |
| IGM | InterGalactic Medium |
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