== P1.10	Verification of the operability of the motors & light sources and looking for filter defects/artifacts == 
•	**Phase**		:	1  
•	**Status**		: 	Draft	 
•	**Category**		: 	Unpack, Assemble, and Verification (C1)
•	**Recurrence**	: 	once
•	**Duration**		: 	1.5
**Description**
•	Checking the working of motors and light sources within SHARK-NIR using optical feedback. Finding the filter defects/artifacts using an internal calibration source (flat-field) within the instrument.
**Prerequisites**
•	SHARK-NIR connected to LBT network.
•	Electronics racks on.
•	DM best shape uploaded (shape minimizing internal aberrations)
•	The cryostat should be running and cooled down.
**Procedure**
•	When the services are up and running, after the motors are homed, each of the individual motors is individually tested for their different named/nominal positions. 
•	The light sources within SHARK-NIR are used simultaneously to check the working of the motors looking at the optical feedback.
* Check the CRED-2 and ALPAO-DM SW and optical feedback.
* Take the images of all the filters using the internal calibration source (flat-field) within the instrument to locate/find out the filter defects/artifacts, if any. You may take short- and long-exposures to get better contrast of the features if required.

**Success criteria**
•	All the motors can reach the named positions / nominal positions.
•	All the light sources are working and confirmed through optical feedback at the SCICAM.
* CRED-2 AND ALPAO-DM working normally.
•	All the filter images saved.

**Notes**

**LBTO support**
* Liquid Nitrogen refill is required in the cleanroom.
**Associated SHARK-NIR personnel**

**Date performed and by whom**


**Comments**
* KR: add the filter monitoring routine check.