| Acronym | Meaning |
 | ESSCO | Electronic Space Systems Corporation |
| PSU | Pennsylvania State University |
| GMT | Greenwich Mean Time |
| SLAC | Stanford Linear Accelerator Center (or Collider) |
| F/P-INT | Fabry Perot Interferometer |
| ACAP (ACAPS) | Advanced Computer For Array Processing |
| MAN | Metropolitan Area Network |
| AORD | Astronaut Operations Requirements Document |
| ESTP | Exploratory Shaft Test Plan |
| MAP | Middle Atmosphere Program |
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