| Acronym | Meaning |
| AVHRR | Advanced Very High Resolution Radiometer |
| APM | Attached Pressurized Module (a.k.a. Columbus) |
| SAIL | Shuttle Avionics Integration Laboratory |
| MSFC | Marshall Space Flight Center |
| SSPO | Space Shuttle Program Office |
| TAL | Transatlantic Abort Landing |
| KTB | Cretaceous-Tertiary Boundary |
| WFPCII | Replacement For WFPC |
| ZHR | Zenith Hourly Rate |
| NIST | National Institute For Standards And Technology |