== P2.5 SOUL AO system tests == • **Phase** : 2 • **Status** : Draft • **Category** : Daytime testing (functionality and operability) (C2) • **Recurrence** : after instrument installation at telescope platform • **Duration** : 5 days **Description** • Proper working of the SOUL AO system is essential for the performance of the SHARK-NIR instrument. Arcetri team optimizes the SOUL AO system grabbing the PSF image from the SHARK-NIR SCICAM. Argos swing arm calibration light source will be used. If this is not available, RR may be used (second choice only). **Prerequisites** * SHARK-NIR active and working normally. * Cryostat cold and SCICAM working properly. * Activity [wiki:/docs/CommissioningPlan/P1.12 P1.12] success criteria met. * Telescope pointed to Zenith and permission to use the Argos swing arm calibration unit. **Procedure** • AO optimization procedure comes here **Success criteria** • SOUL AO system working in tandem with the SHARK-NIR system. • Acceptable improvement of the on-axis PSF (Argos Swing arm calibration light source) while SOUL AO is closed with known disturbances. • Get a new and improved daytime telescope model for SHARK-NIR, if necessary. **Notes** **LBTO support** • Authorize SHARK-NIR on the SX side. * Authorize mode to use the Argos Swing Arm. If not Argos swing arm, RR will be required on the SX side. • Support from LBT SW Team, LBTI/Arcetri team. **Associated SHARK-NIR personnel** **Date performed and by whom**