== P3.17	Instrumental throughput and absolute flux calibration == 
•	**Phase**		:	3  
•	**Status**		: 	Draft	 
•	**Category**		: 	Nighttime testing (functionality and operability) (C4)
•	**Recurrence**	: 	once every month starting from commissioning and then on				request for accurate photometry (using CI and DBI).
•	**Duration**		: 	1 hour (per configuration, also depends on mag of star)
**Description**
•	Throughput calibration to obtain absolute flux calibration of science targets.
**Prerequisites**
•	Authorize SHARK-NIR on the SX side.
•	Atmospheric conditions: AO working conditions.
•	Bad pixel map, Background or Dark, Flat-field, distortion map 
**Procedure**
•	Observe a spectro-photometric standard star of known magnitude with no coronagraph and for required filters.
**Success criteria**
•	Flux measurement better than 10% 
**Notes**
•	Same as activity 7.3 in AD4
**LBTO support**
•	SOUL-AO support
**Associated SHARK-NIR personnel**

**Date performed and by whom**