| Acronym | Meaning |
| AIPS | Astronomical Image Processing System |
| MMS | Multi-mission Modular Spacecraft |
| DPSS | DATA Processing Services Subsystem |
| ENAP | Energetic Neutral Atom Precipitation |
| IPAC | Infrared Processing & Analysis Center |
| U3P | Union Pour La Promotion De La Propulsion Photonique |
| OSCAR | Orbiting Satellite Carrying Amateur Radio |
| IDL | Interactive Data Language |
| C&T | Communications & Tracking |
| LRSI | Low-temperature Reusable Surface Insulation |