| Acronym | Meaning |
| GSTDN | Ground Space Flight Tracking And Data Network |
| ODF | Orbit Determination Facility |
| BP | Capacitance |
| UST | United States Testing (Company) |
| CDA | Command And Data Acquisition |
| PSCN | Preliminary Specification Change Notice |
| TCU | TaPe Control Unit |
| HRDR | High Rate Digital Recorder |
| RSPL | Recommended Spare Parts List |
| MTS | Magnetic Tape Station (System) |