| Acronym | Meaning |
| ND | Near-dedicated |
| ACWP | Actual Cost Of Work Performed |
| APRM | Average Power Range Monitor |
| VELORT | Very Long Range Tracking |
| NESDIS | National Environmental Satellite Data And Information Service |
| UCLA | University Of California At Los Angeles |
| IAG | International Association Of Geodesy |
| MMI | Man-made Interface |
| FWPCA | Federal Water Pollution Control Act |
| XMDSL | X Window Interface Distributed Software Library |