| Acronym | Meaning |
| ESOC | European Space Operations Centre |
| IR | InfraRed |
| CMCC | Central Mission Control Centre |
| HRSI | High-temperature Reusable Surface Insulation |
| USAF | United States Air Force |
| PAM | Payload Assist Module |
| OTA | Optical Telescope Assembly |
| SIRTF | Space InfraRed Telescope Facility |
| EGRET | Energetic Gamma Ray Experiment Telescope |
| NSSDC | National Space Science Data Center |