| Acronym | Meaning |
 | TOMS | Total Ozone Mapping Spectrometer |
| IUE | International Ultraviolet Explorer |
| LEO | Low Earth Orbit |
| CMBR | Cosmic Microwave Background Radiation |
| LRB | Liquid Rocket Booster |
| ISTS | Institute For Space And Terrestrial Science |
| VTHL | Vertical Takeoff Horizontal Landing |
| GC | Globular Cluster |
| CDDT | Countdown Demonstration Test |
| TDRS | Tracking And Data Relay Satellite |
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