| Acronym | Meaning |
 | APT | Automatic Picture Transmission |
| AJ | Astronomical Journal |
| TAI | International Atomic Time |
| GOX | Gaseous OXygen |
| CMB | Cosmic Microwave Background |
| ORFEUS | Orbiting And Retrievable Far And Extreme Ultraviolet Spectrometer |
| OPF | Orbiter Processing Facility |
| SPTN | SPARTAN |
| GNC | Guidance |
| NSF | National Science Foundation |
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