== P1.7 Check the working of the internal NCPA routine == • **Phase** : 2 • **Status** : Draft • **Category** : Unpack, Assemble, and Verification (C1)??? • **Recurrence** : once at commissioning • **Duration** : 0.5 day **Description** • Check the working of the internal NCPA routine (phase diversity + wollastone (DI-DBI)) **Prerequisites** • SCICAM cooled down. **Procedure** • Run the Phase-diversity routine using the images taken with the SHARK-NIR internal calibration sources to measure the NCPA within (excluding the deployable arm) **Success criteria** * Internal NCPA routine works fine and the PSF shows improvement in its quality. **Notes** • **LBTO support** **Associated SHARK-NIR personnel** **Date performed and by whom** **Comments**