SDC8 Ghost calibration

• Phase : 1
• Status : to be done
• Category : Daytime calibration (C3)
• Recurrence : once every 6 months, starting from commissioning.
• Duration : 5 minutes per configurations x 2 derotator positions. (this duration is valid only during regular operations, i.e., after commissioning)

Description

• Recording the ghost positions at the contrast of <5x10^-7

Prerequisites

• Bad pixel map, Background

Procedure

• Insert the point source lamp and acquire 2 exposures: the first one is a non-saturated exposure (DET.DIT and DET.NDIT), the second one is a saturated exposure.

Templates

• SHARKNIR_cal_mon_Ghost

Success criteria

• Accuracy: Position: 0.5 pixel; Contrast: 5.10^-7.

Notes

• Same as activity 9.5 in AD4

LBTO support

Date performed and by whom