| Acronym | Meaning |
 | MSS | Multispectral Scanner |
| HLC | Heavy Lift Capability |
| DMR | Differential Microwave Radiometer |
| CLAES | Cryogenic Limb Array Etalon Spectrometer |
| TSPK | Tsentr Podgotovka Kosmonavti |
| MTPE | Mission To Planet Earth |
| ACE | Advanced Composition Explorer |
| ATM | Apollo Telescope Mount (on Skylab) |
| ASRM | Advanced Solid Rocket Motor |
| RGB | Red Giant Branch |
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