| Acronym | Meaning |
| ISC | Johnson Space Center (formerly MSC) |
| REC | Receive |
| DML | Developmental Instrumentation MDM-Left |
| SOP | Subsystem Operating Program |
| GLC | Generator Line Contractor |
| RTC | Real-Time Computer |
| MAUS | Schewerelosigkeit |
| CCP | Center Console Panel |
| GDS | Goldstone |
| RDD | Requirements Definition Document |