| Acronym | Meaning |
 | SSRT | Single Stage Rocket Technology |
| LGA | Low Gain Antenna |
| MODIS-N | MODIS-Nadir |
| EOS | Earth Observing System |
| E | Elliptical (for Galaxies) |
| HRSC | High Resolution Stereo Camera |
| HRMS | High Resolution Microwave Survey |
| ET | External Tank |
| ALPO | Association Of Lunar And Planetary Observers |
| CFPA | Center For Particle Astrophysics (Berkeley) |
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