| Acronym | Meaning |
 | WR | Western Range |
| IOA | Institute Of Astronomy (Cambridge) |
| MACS | Modular Attitude Control System |
| NSI | NASA Science Internet / NASA Standard Initiator / National Environmental Satellite Data And Information Service |
| FBV | Fuel Bleed Valve |
| MODIS | Moderate Resolution Imaging Spectrometer |
| LGM | Little Green Men |
| ADS | Aitken Double Star Catalog |
| ET | External Tank |
| AOCS | Attitude And Orbit Control System |
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