| Acronym | Meaning |
 | CY | Calendar Year |
 | EVSC | Extravehicular Suit Communications |
 | IPCL | Instrumentation Program And Component List |
 | P | Roll Rate (Angular Rate) |
 | RFW | Request For Waiver (Deviation) |
 | SIP | Scientific Instrument Package |
 | FCO | Functional Checkout |
 | PCR | Payload Changeout Room |
 | PVT | Pyrotechnic Verification Test |
 | UPS | Uninterruptible Power System |