| Acronym | Meaning |
 | RIC | Rockwell International Corporation |
| N/C | Normally Closed |
| SPL | Scratch Pad Line |
| GS | Glide Slope |
| RPP | Reinforced Pyrolytic Plastic |
| CTA | Computer Technology Associates (GSFC) |
| ESTEC | European Space Research And Technology Center |
| PAYDAT | Payload Data |
| PDB | Performance Data Book |
| SCF | Safing And DeServicing Facility |
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