== P3.12	Checking field-stabilized mode/bearing rotation service == 
•	**Phase**		:	3  
•	**Status**		: 	Draft	 
•	**Category**		: 	Nighttime testing (functionality and operability) (C4)
•	**Recurrence**	: 	once at commissioning
•	**Duration**		: 	40 minutes
**Description**
•	The field stabilized mode or in other words, the working of the bearing tracking service will be tested.
**Prerequisites**
•	Atmospheric conditions: AO working conditions.
•	Authorize SHARK-NIR on the SX side.
•	Targets (star cluster) near zenith and horizon (say airmass of 2).
**Procedure**
•	Select the target near airmass 2. There should be stars spread across the entire SCICAM, preferably close to the edges as well.
•	Start the bearing tracking services (field-stabilized mode). 
•	Take short-exposure images for a duration of ##minutes.
•	Check if the positions of these stars.
•	Repeat the same for the target close to the zenith. 
•	The above may be repeated for a target where the rotation of the bearing is in the opposite direction as of the above tested one.
**Success criteria**
•	The bearing tracking service works well and the field is stabilized within the precision needed.
**Notes**
**LBTO support**
•	Support from LBTI/LBTO?
**Associated SHARK-NIR personnel**
•	JF, LM, MdP
**Date performed and by whom**