| Acronym | Meaning |
 | HEOS-A2 | Highly Eccentric Orbit Satellite |
| TIROS | Thermal Infrared Observational Satellite |
| NSI | NASA Science Internet |
| BLS | Bureau Of Labor Statistics |
| DDESB | Department Of Defense Explosives Safety Board |
| GAIM | Global Analysis |
| PHS | Public Health Service |
| DIB | Directory Information Base |
| OPAL | Opacity Project At Livermore |
| NAWPG | National Aviation Weather Products Generator |
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