| Acronym | Meaning |
 | ATSR | Along Track Scanning Radiometer |
| FOC | Faint Object Camera |
| MOTV | Manned Orbital Transfer Vehicle |
| LEM | Lunar Excursion Module |
| GMRT | Giant Meter-wave Radio Telescope |
| MOMS | Modular Optoelectronic Multispectral/Stereo Scanner |
| MJD | Modified Julian Date |
| COSTAR | Corrective Optics Space Telescope Axial Replacement |
| FIRAS | Far InfraRed Absolute Spectrophotometer |
| SUSIM | Solar Ultraviolet Spectral Irradiance Monitor |
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