| Acronym | Meaning |
 | HRDI | High Resolution Doppler Imager |
| NTR | Nuclear Thermal Rocket(ry) |
| WSMR | White Sands Missile Range |
| IRAF | Image Reduction And Analysis Facility |
| DSSC | Deep Space Station Complex |
| BAE | British Aerospace |
| MS | Main Sequence |
| EURECA | European Retrievable Carrier |
| GRO | Gamma Ray Observatory |
| PEM | Particle Environment Monitor |
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