| Acronym | Meaning |
 | HAO | High Altitude Observatory |
| DCA | Defense Communications Agency |
| GHA | Greenwich Hour Angle |
| DEC | Declination |
| CSIRO | Commonwealth Scientific And Industrial Research Organization |
| BIMDA | Bioserve-Instrumentation Technology Associate Materials Dispersion Analysis |
| SPOT | Systeme Probatoire Pour L'Observation De La Terre |
| UKST | United Kingdom Schmidt Telescope |
| EVA | Extravehicular Activity |
| JEM | Japanese Experiment Module |
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