| Acronym | Meaning |
 | SPTN | SPARTAN |
| PVO | Pioneer Venus Orbiter / Protivo-Vosdushniya Oborona |
| IAPPP | International Amateur/Professional Photoelectric Photometry |
| CRL | Communication Research Lab |
| GHA | Greenwich Hour Angle |
| OMDP | Orbiter Maintenance Down Period |
| FAST | Fast Auroral SnapshoT Explorer |
| BIMDA | Bioserve-Instrumentation Technology Associate Materials Dispersion Analysis |
| DOE | Department Of Energy |
| IVT | Interface Verification Test |
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