| Acronym | Meaning |
 | NRO | National Reconnaissance Office |
| RA | Right Ascension |
| SLAP | Space Link Access Protocol |
| ISPM | International Solar Polar Mission |
| JAEL | JSC Avionics Engineering Laboratory |
| TDRSS | Tracking And Data Relay Satellite System |
| MPC | Minor Planets Circular |
| ISM | InterStellar Medium |
| MOTV | Manned Orbital Transfer Vehicle |
| AAS | American Astronautical Society |
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