Changes between Version 13 and Version 14 of docs/CommissioningPlan/P3.12

Timestamp:

01/14/22 18:58:40 (3 years ago)

Author:

kradhakrishnan

Comment:

--

docs/CommissioningPlan/P3.12

@@ -1 @@
- == P2.7        Star center Fourier mode images == 
- 
-- **Phase**             :       2  
+== P3.12        Astrometry plate scale and orientation == 
+
+- **Phase**             :       3  
 - **Status**            :       Draft    
-- **Category**  :       Daytime testing (functionality and operability) (C3) + Daytime calibration (C4)
-- **Recurrence**        :       once after instrument installation at telescope platform
-- **Duration**  :       2 days
+- **Category**  :       Nighttime testing (functionality and operability) (C5) + Nighttime calibration (C6)
+- **Recurrence**        :       every night starting from commissioning
+- **Duration**  :       2 hours
 
 **Description**
-- 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. 
+- Determine the astrometry of the science frame. Deduce detector on sky coordinates & plate scale from RA & DEC of known multiple stellar systems. This calibration is to be done for a reference setup. 
 
 **Prerequisites**
 - Authorize SHARK-NIR on the SX side.
 - Atmospheric conditions: AO working conditions.
-- Bad pixel map, Dark 
+- Bad pixel map, Background or Dark, Flat-field, distortion map 
 
 **Procedure**
-- 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.
+- Observe multiple systems with known characteristics without the coronagraph 
 
-**Templates** 
+**Templates**
 
 **Success criteria**
-- Accuracy of 3 mas (goal 1 mas) 
+- Image scale better than 5 mas (goal 0.5 mas) over FoV, image orientation better than 3 arcmins (goal 18 arcsec) 
 
 **Notes**
-- Same as activity 7.8 in AD4
+- Same as activity 7.1 in AD4
 
 **LBTO support**