| Acronym | Meaning |
| NIU | Network Interface Unit |
| ARC | Applied Research Corporation |
| RA | Radio Antenna |
| NSTP | National Solar Terrestrial Program |
| FERC | Federal Energy Regulatory Commission |
| MOM | Mission Operations Manager |
| HARP | Hawaiian Rainband Project |
| DST | Data Systems Test |
| SISEX | Shuttle Imaging Spectrometer Experiment |
| FORTRAN 77 | N/A |