| Acronym | Meaning |
| ZHR | Zenith Hourly Rate |
| UPPP | Union Pour La Promotion De La Propulsion Photonique |
| CNES | Centre National D'Etude Spatiales |
| U3P | Union Pour La Promotion De La Propulsion Photonique |
| ATDRS | Advanced Tracking And Data Relay Satellite |
| PV | Photovoltaic |
| NDV | NASP Derived Vehicle |
| VOIR | Venus Orbiting Imaging Radar |
| TOMS | Total Ozone Mapping Spectrometer |
| A&A | Astronomy And Astrophysics |