| Acronym | Meaning |
| ESSP | Earth System Science Pathfinder Mission (ESSP) |
| MSS | Multi-Spectral Scanner |
| OAO | Orbiting Astronomical Observatory |
| CPC | Climate Prediction Center (NWS Center) |
| TOS | TIROS Operational Satellite |
| ERBE | Earth Radiation Budget Experiment |
| ACRIM | Active Cavity Radiometer Irradiance Monitor (EOS) |
| MAS | MODIS Airborne Simulator |
| CD-ROM | Compact Disc-Read Only Memory |
| VLF | Very Low Frequency |