| Acronym | Meaning |
 | NMF | Normal Mode Functions |
| OSL | Orbiting Solar Laboratory |
| DIFAX | Digital Facsimile Map |
| ESS | Engineering Equipment Surveillance System |
| BP | Boundary Profile |
| AIC | Acceptable Intake For Chronic Exposure |
| VTR | Video Tape Recorder |
| GFP | Government Furnished Property |
| DEM | Digitized Elevation Models |
| HSC | High Speed Channel |
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