== List of OPTIi keywords ==

^Parameter             ^Description^
| INS OPTI1 | CFO PP1 mask wheel |
| INS OPTI2 | CFO PP1 ADC wheel |
| INS OPTI3 | CFO FP2 mask/slit wheel |
| INS OPTI4 | LMS beamsplitter pickoff wheel |
| INS OPTI5 | LMS PP1 mask wheel |
| INS OPTI6 | LMS spectral IFU mechanism |
| INS OPTI7 | LMS pre-disperser |
| INS OPTI8 | LMS main disperser |
| INS OPTI9 | IMG-LM mask/grism wheel |
| INS OPTI10 | IMG-LM science filter wheel |
| INS OPTI11 | IMG-LM neutral density filter wheel |
| INS OPTI12 | IMG-N mask/grism wheel |
| INS OPTI13 | IMG-N science filter wheel |
| INS OPTI14 | IMG-N neutral density filter wheel |
| INS OPTI15 | IMG-LM PIL |
| INS OPTI16 | IMG-N PIL |
| INS OPTI17 | WCU periscope |
| INS OPTI18 | WCU PP1 masks |
| INS OPTI19 | WCU IS exit aperture masks |
| INS OPTI20 | WCU FP2.1 mask wheel |