| Acronym | Meaning |
 | LRSI | Low-temperature Reusable Surface Insulation |
| NORAD | NORth American Aerospace Defense |
| UDMH | Unsymmetrical DiMethyl Hydrazine |
| PSF | Point Spread Function |
| STSCI | Space Telescope Science Institute |
| JEM | Japanese Experiment Module |
| DSN | Deep Space Network |
| DAC | Delayed Action Command |
| SMC | Small Magellanic Cloud |
| SEST | Swedish ESO Submillimeter Telescope |
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