P3.18 Atmospheric calibration and absolute flux calibration

• Phase : 3
• Status : Draft
• Category : Nighttime testing (functionality and operability) (C5) + Nighttime calibration (C6)
• Recurrence : once at commissioning and then for each LSS observation.
• Duration : 4 hours

Description

• Atmospheric calibration to remove telluric atmospheric features from the stellar spectrum and get absolute flux calibration per spectral resolution element.

Prerequisites

• Authorize SHARK-NIR on the SX side.
• Atmospheric conditions: AO working conditions.
• Bad pixel map, Background or Dark, Flat-field, wavelength calibration.

Procedure

• Observe the spectrum of a featureless (standard) star at a similar airmass to that of the science target.

Templates

• SHARKNIR_lss_cal_RemoveTelluric (not released)
• SHARKNIR_lss_cal_AbsoluteFlux (not released)

Success criteria

• Better than 10% for absolute flux calibration and average residuals from telluric removal.

Notes

• Same as activity 7.4 in AD4

LBTO support

• AO support

Date performed and by whom