| Acronym | Meaning |
| SOHO | SOlar Heliospheric Observatory |
| AVHRR | Advanced Very High Resolution Radiometer |
| LGM | Little Green Men |
| MOMS | Modular Optoelectronic Multispectral/Stereo Scanner |
| LHA | Local Hour Angle |
| GEM | Graphite Epoxy Motor |
| PCG | Protein Crystal Growth Experiment |
| WTR | Western Test Range |
| ORBI | Stock Ticker Symbol For OSC |
| CNES | Centre National D'Etude Spatiales |