| Acronym | Meaning |
| RAS | Royal Astronomical Society |
| ATCS | Active Thermal Control System |
| S/C | SpaceCraft |
| SPDM | Special Purpose Dextrous Manipulator |
| GOSAMR | Gelation Of Soils: Applied Microgravity Research |
| VLA | Very Large Array |
| PCT | Photometric Calibration Test |
| BFC | Backup Flight Computer |
| CMBR | Cosmic Microwave Background Radiation |
| FAP | Freedom Attached Payloads |