| Acronym | Meaning |
 | NODS | NASA Ocean Data System |
| NGDC | National Geophysical Data Center |
| ESO | European Southern Observatory |
| WVIOP | Water Vapor Intensive Observing Period |
| SAC | Strategic Air Command |
| EED | Exposure Evaluation Division |
| NTSB | National Transportation Safety Board |
| IRS | Indian Remote-sensing Satellite |
| MR | Management Reserve |
| PB | Product Of Polarization And Brightness |
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