| Acronym | Meaning |
 | SSCE | Solid Surface Combustion Experiment |
| HCMM | Heat Capacity Mapping Mission |
| LRSI | Low-temperature Reusable Surface Insulation |
| GNC | Guidance |
| CDM | Cold Dark Matter |
| CASSINI | Saturn Orbiter And Titan Probe |
| OAO | Orbiting Astronomical Observatory |
| ISAMS | Improved Stratospheric And Mesospheric Sounder |
| BBXRT | Broad-Band X-Ray Telescope |
| ACTS | Advanced Communications Technology Satellite |
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