== P2.9	Nighttime acquisition and setting telescope collimation for night (this page will change completely) == 
•	**Phase**		:	2  
•	**Status**		: 	Draft	 
•	**Category**		: 	Nighttime testing (functionality and operability) (C4)
•	**Recurrence**	: 	after instrument installation at telescope platform
•	**Duration**		: 	3 hour(s)
**Description**
•	A bright enough on-axis star is acquired with SHARK-NIR, to define the offset to issue to the telescope for a successful pointing. Telescope collimation model is optimized for the night, if necessary.
**Prerequisites**
•	Atmospheric conditions: should be able to see bight stars on the sky (preferably close to zenith?)
**Procedure**
•	Authorize SHARK-NIR on the SX side.
•	Point to bright star on the sky and acquire. Once the star is at the reference pixel of the SCICAM, record the nighttime telescope collimation model for SHARK NIR.
•	Close the loop at least with low order to save the flat for the ASM.
•	If needed, run again the NCPA estimation and record the flat again.
•	Go to another bright star in the field to see if the star appears immediately in the FoV of SHARK-NIR. If needed, correct the offset and record new collimation. Iterate this with another star to cross-check again.
•	If time allows, perform NCPA within SHARK (using the phase-diversity method) and check the working the residual tip-tilt loop+NCPA at the ALPAO DM.
•	Save telemetry (open and closed loop of the ALPAO DM).
**Success criteria**
•	First-ever ‘technical photons’ at the SHARK-NIR WFS and SCICAM.
•	Nighttime collimation model of the SHARK-NIR is recorded.
•	Satisfactory PSF quality with closed loop.
•	Telemetry saved (open and closed loop of ALPAO DM) for **Phase** diversity NCPA estimation.
**Notes**
**LBTO support**
•	Support from LBTI/LBTO?
•	Presence of John Hill usually helps while collimating for the first time. 
•	Steve Allenson (as the TO) will be a great asset too.
**Associated SHARK-NIR personnel**
•	JF, LM, MdP, MM (from AZ), DV?
**Date performed and by whom**