| Acronym | Meaning |
 | OPC | Optical Propagation Conference |
| USFS | United States Forest Service |
| AIS | Affiliate Information System |
| OFDA | Office Of Foreign Disaster Assistance |
| ALU | Arithmetic Logic Unit |
| OSS | Observation System Simulation |
| HIRDLS | High-Resolution Dynamics Limb Sounder |
| CDIS | Command And Data Interface Simulator Unit |
| DROT | Direct Read Out Terminal |
| SEAB | Secretary Of Energy Advisory Board |
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