Changes between Version 1 and Version 2 of docs/CommissioningPlan/P3.12

Timestamp:

01/19/21 17:30:52 (4 years ago)

Author:

kradhakrishnan

Comment:

--

docs/CommissioningPlan/P3.12

@@ -1 @@
- == P3.12       Checking field-stabilized mode/bearing rotation service == 
+ == P3.12       Star center Fourier mode images == 
 •       **Phase**               :       3  
 •       **Status**              :       Draft    
-•       **Category**            :       Nighttime testing (functionality and operability) (C4)
-•       **Recurrence**  :       once at commissioning
-•       **Duration**            :       40 minutes
+•       **Category**            :       Nighttime calibration (C5)
+•       **Recurrence**  :       on every target, starting from commissioning.
+•       **Duration**            :       1 hour
 **Description**
-•       The field stabilized mode or in other words, the working of the bearing tracking service will be tested.
+•       This calibration is performed to calibrate the target star center with respect to the detector in order to provide a reference input for frame derotation and quadrant combination. 
 **Prerequisites**
+•       Authorize SHARK-NIR on the SX side.
 •       Atmospheric conditions: AO working conditions.
-•       Authorize SHARK-NIR on the SX side.
-•       Targets (star cluster) near zenith and horizon (say airmass of 2).
+•       Bad pixel map, Dark 
 **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.
+•       DM produce a pattern offset with four spots symmetric with respect to the star + AO closed-loop + coronagraph
+•       The required specifications of the corresponding image are a grid of at least 2x2 regularly spaced focal plane image peaks within 5 and 15 lambda/D with FWHM < 45 mas and separation precision < 6 mas.
+•       DM offset applied on target acquisition to produce a waffle image. Find the center of the four first-order diffraction peaks (cross geometry) to deduce the pixel corresponding to the center field.
 **Success criteria**
-•       The bearing tracking service works well and the field is stabilized within the precision needed.
+•       Accuracy of 3 mas (goal 1 mas) 
 **Notes**
+•       Same as activity 7.8 in AD4
 **LBTO support**
-•       Support from LBTI/LBTO?
+•       SOUL-AO support
 **Associated SHARK-NIR personnel**
-•       JF, LM, MdP
+
 **Date performed and by whom**