| Acronym | Meaning |
 | AOSO | Advance Orbiting Solar Observatory |
| HELLO | N/A |
| NEMS | Nimbus E Microwave Spectrometer |
| PFA | Primary Flux Array |
| GRAF | Gridded Representation Of Analyses And Forecasts |
| ATS | Advanced Technology Satellite |
| LPI | Lines Per Inch |
| ORR | Operations Readiness Review |
| AOC | Area Of Concern |
| MFEM | Magnetic Field Explorer Mission |
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