| Acronym | Meaning |
| NLDN | National Lightning Detection Network |
| IPOMS | International Polar-Orbiting Meteorological Satellite Group |
| AEDS | Atomic Energy Detection System |
| ORB | Object Request Broker |
| PDF | Probability Density Functions |
| NTIS | National Technical Information Service |
| SCCCAMP | South Central Coast Cooperative Aerometric Monitoring Program |
| APL | Average Power Laser |
| ACL | Auxiliary Cooling Loop |
| TIP | TIROS Information Processor |