| Acronym | Meaning |
| DAV | L Data Available-Low |
| VLF | Very Low Frequency |
| OGA | Outer Gimbal Axis |
| SCU | Signal Conditioning Unit |
| LB | Low Bay |
| RPA | Request For Procurement Action (Authorization) |
| EVS | Equipment VisibilitY System |
| SAG | E Stratospheric Aerosol Gas Experiment |
| SUMC | Space Ultrareliable Modular Computer |
| IPS | IR SPECTInfrared Spectrometer |