| Acronym | Meaning |
 | AT | Accelerator Technology |
| SIM | Solar Interplanetary Model |
| NEWS | Network Extensible Windows System |
| CAS | Cooperative Application Satellite |
| IIPS | Interactive Information And Processing Systems [for Meteorology |
| APLE | Average Power Laser Experiment |
| NOAASIS | NOAA Satellite Information System |
| NOSS | National Ocean Satellite System |
| AIP | Additions In Progress |
| TOPSE | Tropospheric Ozone Production About The Spring Equinox |
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