| Acronym | Meaning |
| OARE | Orbital Acceleration Research Experiment |
| ELV | Expendable Launch Vehicle |
| PSF | Point Spread Function |
| RAS | Royal Astronomical Society |
| MMCC | Mission Management And Control Centre |
| EOS | Earth Observing System |
| MOMV | Manned Orbital Maneuvering Vehicle |
| OMS | Orbital Maneuvering System |
| CDDT | Countdown Demonstration Test |
| USO | Ultra-Stable Oscillator |