| Acronym | Meaning |
 | HMC | Halley Multicolor Camera |
| HGA | High Gain Antenna |
| SSME | Space Shuttle Main Engine |
| PASS | Primary Avionics Software System |
| ATSR | Along Track Scanning Radiometer |
| CCDS | Centers For The Commercial Development Of Space |
| U3P | Union Pour La Promotion De La Propulsion Photonique |
| PDS | Planetary Data System |
| GR | General Relativity |
| UPPP | Union Pour La Promotion De La Propulsion Photonique |
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