P3.6 PSF Alignment

• Phase : 3
• Status : Draft
• Category : Nighttime testing (functionality and operability) (C4)
• Recurrence : before every observing target (CI, LSS), starting from commissioning.
• Duration : 3.5 hours

Description

• Alignment of the PSF with occulter (or slit) in coronagraphic mode.

Prerequisites

• Bad pixel map, Background or Dark, Flat-field, detector RON

Procedure

• The position of the internal deformable mirror (TTM_DM) is optimized in order to have the PSF image on the intermediate focal plane centered with the occulter. This is obtained comparing the PSF image, formed on the SCICAM, with the image of the occulter, obtained on the SCICAM using the calibration flat-field source.

Success criteria

• the expected accuracy of 0.2 pixel (DV: need to check if we can reach this).

Notes

• Same as activity 8.3 in AD4
• 7 cases, 30 mins per case.

LBTO support

• SOUL-AO support

Associated SHARK-NIR personnel

Date performed and by whom