Changes between Version 6 and Version 7 of docs/CommissioningPlan/P3.7

Timestamp:

04/22/22 20:47:47 (3 years ago)

Author:

kradhakrishnan

Comment:

--

docs/CommissioningPlan/P3.7

@@ -1 @@
-== P3.7 Checking field-stabilized mode/bearing rotation service == 
+== P3.7 Internal TT loop working and performance== 
  
 - **Phase**             :       3  
 - **Status**            :       Draft    
-- **Category**  :       Nighttime testing (functionality and operability) (C5)
+- **Category**  :       Nighttime testing (functionality and operability) (C5) + Nighttime testing for performance (C7)
 - **Recurrence**        :       once at commissioning
-- **Duration**  :       2 hours
+- **Duration**  :       3 hours
 
 **Description**
-- The field stabilized mode, or in other words, the working of the bearing tracking service, will be tested.
+- Evaluate the performance of the internal tip-tilt (TT) loop of SHARK-NIR for stars of varying brightness.
 
 **Prerequisites**
-- Atmospheric conditions: AO working conditions.
+- Atmospheric conditions: TBD
 - Authorize SHARK-NIR on the SX side.
-- Targets (star cluster) near zenith and horizon (say airmass of 2).
+- Stars (of known brightness from 8mag-13mag in the R band) as targets.
+- AO is working.
 
 **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 the positions of these stars.
-- Repeat the same for the target close to the zenith. 
-- Repeat the same steps for a target where the rotation of the bearing is in the opposite direction.
+- Run the internal TT loop after the star is acquired and the AO loop is closed. 
+- Take unsaturated images of the star for a given (?) science filter before and after the internal TT loop closure in the SCICAM.
+- Take data in TECCAM simultaneously. 
+- Use data to estimate the improvement of the residual jitter after the TT loop is closed.
+- Repeat for different star magnitudes.
+- should we perform as a function of elevation as well? We can choose stars accordingly, then?
 
 **Templates**
+- SHARKNIR_gen_tiptilt_loop (not released)
 
 **Success criteria**
-- The bearing tracking service works well, and the field is stabilized within the precision needed.
+- Estimate the residual jitter after SOUL-AO is closed for a given seeing and star brightness.
+- Checking the working and performance of the internal TT loop.
+- Quantify and numbers to add?
 
 **Notes**