| Acronym | Meaning |
| SUMC | Space Ultrareliable Modular Computer |
| CECP | Compatibility Engineering Change Proposal |
| RDR | Rudder |
| SACS | SYstems AllocationDocument |
| OPTB | Opposite |
| SATO | Shuttle Attached Teleoperator |
| MSIA | Multispectral Image Analyzer |
| SC | Signal Conditioner (S/C Preferred) |
| RSS | Root Sum Square |
| PP | Power Pole |