| Acronym | Meaning |
 | RKA | Rossiskoye Kosmicheskoye Agentsvo |
| TRMM | Tropical Rainfall Measuring Mission |
| XUV | Extreme Ultraviolet |
| AIPS | Astronomical Image Processing System |
| VOIR | Venus Orbiting Imaging Radar |
| PMC | Permanently Manned Capability |
| DOT | Department Of Transportation |
| ISAS | Institute Of Space AND Astronautical Science |
| MACRO | Monopoles |
| PDRS | Payload Deployment And Retrieval System |
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