== 4.7 Exo-planet: Astrometry== 
•	**Phase**		:	4  
•	**Status**		: 	Draft	 
•	**Category**		: 	Science verification / Early science (C7)
•	**Recurrence**	: 	once after the completion of nighttime testing and performance check
•	**Duration**		: 	4 night(s)
**Description**
•	
**Prerequisites**
•	Authorize SHARK-NIR on the SX side.
•	Atmospheric conditions: CLEAR
•	Bad pixel map, Background or Dark, Flat-field, distortion map 
•	Cloud Cover		: No cloud
•	Astronomical Seeing	: 0.8" or better
•	Sky Background	: Any
•	Water Vapor		: low
•	Timing Windows	: better to observe during the passage of the target at the meridian (+/- 1 hour before)
•	Observing Targets	: TBD (better to choose a target with known companions and bright enough to be easily observed)
•	Observing Filters	: TBD
•	Detector Mode, DIT: according to the target brightness (TBD)
•	Daytime Calibration Data required: dark/background, instrument flat
•	Nighttime Calibration Data required: flux calibration and centering data (only in case of coronagraphic observation - standard case)

**Procedure**
•	After pre-set and acquisition of the target we will run on flux calibration template with the star off-centered from the coronagraph (short templete - few minutes). To this a centering
        observation follows with the Fourier mode on the DM allowing the creation of four satellite spots (around 5% of the target brightness). Also this template is short. We then perform the scientific coronagraphic 
        observation using pupil stabilized observing mode. This observation should be taken during the passage of the star to the meridian to maximize the rotation of the FOV and allow to implement ADI. This part should 
        be long at least 1:20-1:30 hours. The observation is closed running again centering and flux calibration with the same modalities adopeted at the beginning of the observations.
**Notes**

**LBTO support**
•	SOUL-AO support

**Associated SHARK-NIR personnel**

	
**Date performed and by whom**