| Acronym | Meaning |
 | SEC | Secondary |
| KSC | John F. Kennedy Space Center |
| ETROD | Eastern Test Range Operations Directive |
| VI | Internal Velocity |
| OCDR | Orbiter Critical Design Review |
| TE | Test Equipment |
| LANDC | Instrumentation And Communication |
| NAS | National Academy Of Sciences |
| PRB | Panel Review Board |
| MATCO | Materials Analysis |
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