| Acronym | Meaning |
 | LRO | Large Radio Observatory |
| TO | Takeoff |
| RIGI | Receiving Inspection General Instruction |
| SSA | 1/0 GCOS Program Element Name |
| TVP | Test Verification Program |
| PUSS | Pallet Utility Support Structure |
| P&SM | Procurement And Subcontract Management |
| NB | Nitrogen Base |
| DAP | Digital Autopilot |
| SM | ESShuttle Mission Eng' |
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