| Acronym | Meaning |
 | GEODSS | Ground-based Electro-optical Deep-space Surveillance System |
| VISSR | Visible/Infrared Spin-Scan Radiometer |
| LPV | Long Period Variable |
| IAPPP | International Amateur/Professional Photoelectric Photometry |
| WFF | Wallops Flight Facility |
| INMARSAT | International Maritime Satellite |
| TIROS | Television InfraRed Observation Satellite |
| CSM | Command And Service Module |
| GLOMR | Global Low-Orbiting Message Relay |
| LC | Launch Complex |
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