| Acronym | Meaning |
| MCA | Maximum Crossing Altitude |
| STD | Standard |
| SDF | System Development Facility (Breadboard) |
| M&M | Materials And Maintenance |
| ND | NASA Document |
| CDRL | Contract Data Requirements List |
| MPR | Mockup Purchase Request |
| SL | Seal |
| TDP | Tracking Data Processor |
| DBCI | DB With Respect To A Circular Polarized Antenna |