== P3.13	Center the slit == 
•	**Phase**		:	3  
•	**Status**		: 	Draft	 
•	**Category**		: 	Nighttime testing (functionality and operability) (C4)
•	**Recurrence**	: 	once at commissioning
•	**Duration**		: 	4 hours
**Description**
•	This activity will center the long slit.
**Prerequisites**
•	Atmospheric conditions: AO working conditions.
•	Authorize SHARK-NIR on the SX side.
**Procedure**
•	Point to known binary stars and then offset the telescope and the rotators to get to the nominal (known) position of the planet or introducing a bright speckle by using secondary mirrors at the same parallactic angle of the planet in order to align the slit or TBD????? [This procedure is not complete. we need to work on this.]
**Success criteria**
•	xxx
**Notes**
**LBTO support**
•	SOUL-AO support
**Associated SHARK-NIR personnel**

**Date performed and by whom**

** Comments**

* define the procedure.
* ask VD and DM if (1) SPHERE has a LSS mode and if yes, how they do it ? and (2) do you think need to have a preliminary image of the star + planet (without the slit)?