| Acronym | Meaning |
| PDRS | Payload Deployment And Retrieval System |
| EMU | Extravehicular Mobility Unit |
| U3P | Union Pour La Promotion De La Propulsion Photonique |
| ADEOS | Advanced Earth Observing Satellite |
| GIF | Graphics Interchange Format |
| HLC | Heavy Lift Capability |
| HSP | High Speed Photometer |
| HD | Henry Draper Catalog Entry |
| IPS | Inertial Pointing System |
| HALOE | Halogen Occultation Experiment |