| Acronym | Meaning |
| LM | Lunar Module |
| DIRBE | Diffuse Infrared Background Experiment |
| SPAS | Space Pallet Satellite |
| OMB | Office Of Management And Budget |
| FAP | Freedom Attached Payloads |
| ALEXIS | Array Of Low Energy X-ray Imaging Sensors |
| MODE | Middeck Zero-Gravity Dynamics Experiment |
| SEST | Swedish ESO Submillimeter Telescope |
| CDS | Command And Data Subsystem |
| PAM | Payload Assist Module |