| Acronym | Meaning |
 | LSR | Local Standard Of Rest |
| JERS | Japanese Earth Resources Satellite |
| USN | United States Navy |
| ENAP | Energetic Neutral Atom Precipitation |
| RKA | Rossiskoye Kosmicheskoye Agentsvo |
| GLOMR | Global Low-Orbiting Message Relay |
| TWTA | Travelling Wave Tube Amplifier |
| SEM | Space Environment Monitor |
| SOB | Strap-On Booster |
| PAM-D | Payload Assist Module |
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