| Acronym | Meaning |
| ACRIM | Active Cavity Radiometer Irradiance Monitor (EOS) |
| LED | Light Emitting Diode |
| KSC | Kennedy Space Center |
| ATOVS | Advanced TIROS Operational Vertical Sounder |
| AU | Astronomical Unit |
| EARTHKAM | Earth Knowledge Acquired By Middle-schoolers |
| MSS | Multi-Spectral Scanner |
| HSRL | High Spectral Resolution Lidar |
| SHARP | Summer High School Apprenticeship Research Program (NASA) |
| ESE | Earth Science Enterprise (NASA) |