| Acronym | Meaning |
| ERTS | Earth Resources Technology Satellite |
| NRDC | National Research Development Corporation |
| C/D | Integrated Phase C And Phase D Contract |
| ESA | Endangered Species Act |
| SLIP | Serial Line Internet Protocol |
| VG | Visualization Group |
| INTERNET | The Collection Of All Interconnected Computer Networks Around The Globe That Use The TCP/IP Protocol |
| INSU | National Institute For Sciences Of The Universe |
| IDL | Interactive Display Language |
| MRN | Meteorological Rocket Network |