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chara:new_operating_procedures

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chara:new_operating_procedures [2025/06/18 20:28]
kkubiak [Trouble Shooting - Locking TT and AO Loops] 		chara:new_operating_procedures [2025/07/10 15:01] (current)
bflores [Alignment Sequence On Sky]
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   - Make sure **[DMTILT] **is off while aligning. This will display x, y centroids at the bottom of obsgtk.   - Make sure **[DMTILT] **is off while aligning. This will display x, y centroids at the bottom of obsgtk.
   - On the FIRST slew only, if using STST. Do on EVERY slew, if not using STST.   - On the FIRST slew only, if using STST. Do on EVERY slew, if not using STST.
-      - **[ALN BCN], **  [ALN BCN], Align red beacon to the boxes on the telescope WFS using the beacon flat.+      - **[ALN BCN],** Align red beacon to the boxes on the telescope WFS using the beacon flat.
         - Wfs tab, Use beacon buttons if needed on W1 if beacon gets out of the boxes         - Wfs tab, Use beacon buttons if needed on W1 if beacon gets out of the boxes
         - or hit RIGHT with 500 stepsize to get them back in.align red beacon to the __blue star boxes __on the telescope WFS using the beacon flat.         - or hit RIGHT with 500 stepsize to get them back in.align red beacon to the __blue star boxes __on the telescope WFS using the beacon flat.
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       - ONLY DO THIS STEP IF RED BEACON IS ALIGNED TO STARLIGHT BOXES - (e.g., first slew)       - ONLY DO THIS STEP IF RED BEACON IS ALIGNED TO STARLIGHT BOXES - (e.g., first slew)
       - CHECK IF THE ABOVE STATEMENT IS TRUE!       - CHECK IF THE ABOVE STATEMENT IS TRUE!
 +  - Turn on **DM AUTO**, **LABAO servo**
 +  - Turn on **DMTILT ** (should be green).
 +      - Stays off during alignments and when locked on star using M7AUTO
 +      - Stays on when locked on a star using DMAUTO.
 +      - The message from DM tilt “NOT Ignoring DM tilt…” when it is on. (This may take 2 clicks to confirm this message.)
 +      - NOTE: The DMTILT button changes whether the x, y numbers at the bottom of obsgtk show box centroids (DMTILT gray) or zernike terms (DMTILT green). The automatic alignment sequences now correctly use the correct x,y calculations regardless of whether DMTILT is green/gray (centroids for aligmments and M7AUTO; zernike terms for DMAUTO).
   - Turn off red beacon** [RED OFF]**. (If using alternate beacon boxes, make sure you have the starlight boxes on telescope WFS.)   - Turn off red beacon** [RED OFF]**. (If using alternate beacon boxes, make sure you have the starlight boxes on telescope WFS.)
   - Set the TWFS gain and exposure time. Make a new dark if not using one of the presets.   - Set the TWFS gain and exposure time. Make a new dark if not using one of the presets.
   - Click **[MOVE]**  button then click on star in ACQ window. This will move star into ACQ hole.   - Click **[MOVE]**  button then click on star in ACQ window. This will move star into ACQ hole.
-  - Turn off blue beacon and lock star on **[TT]**  only.+  - Turn off blue beacon if needed to get star into the hole and lock star on **[TT]**  only.
       - Wait a few seconds to let the star fill up the wfs.       - Wait a few seconds to let the star fill up the wfs.
   - Lock star on telescope AO servo (**DM**  button on obsgtk). Both TT and DM servos should be on.   - Lock star on telescope AO servo (**DM**  button on obsgtk). Both TT and DM servos should be on.
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       - Use the centroid crosses as a guide.       - Use the centroid crosses as a guide.
   - Turn on the blue beacon.   - Turn on the blue beacon.
-  - Make sure DMTILT is green 
-      - Stays off during alignments and when locked on star using M7AUTO 
-      - Stays on when locked on a star using DMAUTO. 
-      - The message from DM tilt “NOT Ignoring DM tilt…” when it is on. (This may take 2 clicks to confirm this message.) 
-      - NOTE: The DMTILT button changes whether the x, y numbers at the bottom of obsgtk show box centroids (DMTILT gray) or zernike terms (DMTILT green). The automatic alignment sequences now correctly use the correct x,y calculations regardless of whether DMTILT is green/gray (centroids for aligmments and M7AUTO; zernike terms for DMAUTO). 
-  - Turn on **DM AUTO**, **LABAO servo**. 
   - If the coma and astigmatism terms are high on the aberration plots, create a new sky flat   - If the coma and astigmatism terms are high on the aberration plots, create a new sky flat
       - Turn off **[DM]**, **[SV FLT]**, **[FLATEN]**, then relock the **[DM]**.       - Turn off **[DM]**, **[SV FLT]**, **[FLATEN]**, then relock the **[DM]**.
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 For programs with bright IR stars, skip align beacon, but do the M7 and labao focus alignments. Then lock the star on the blue boxes and use the STST to fine tune any misalignment of the beacon flat. Check the beacon focus on the twfs occasionally to make sure it stays near zero, every 2-3 stars. For programs with bright IR stars, skip align beacon, but do the M7 and labao focus alignments. Then lock the star on the blue boxes and use the STST to fine tune any misalignment of the beacon flat. Check the beacon focus on the twfs occasionally to make sure it stays near zero, every 2-3 stars.
 +
  
 ==== Trouble Shooting - AO Performance - Obsolete ==== ==== Trouble Shooting - AO Performance - Obsolete ====
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 For the VIS dichroics, the WFS gets only 20% of the light, but 1 msec should still get to magnitude 5.0. For the VIS dichroics, the WFS gets only 20% of the light, but 1 msec should still get to magnitude 5.0.
  
-==== Setting Threshold for WFS ====+==== Setting Threshold for WFS ==== - Obsolete
  
 If the starlight is missing from the boxes on the TWFS on S2, you might be able to improve performance on by applying a threshold to ignore the TWFS boxes without flux This is likely caused by an alignment problem at the telescope/AOB, so notify charatech if you apply a threshold. Here are the steps to try this approach again on sky: If the starlight is missing from the boxes on the TWFS on S2, you might be able to improve performance on by applying a threshold to ignore the TWFS boxes without flux This is likely caused by an alignment problem at the telescope/AOB, so notify charatech if you apply a threshold. Here are the steps to try this approach again on sky:
chara/new_operating_procedures.1750292891.txt.gz · Last modified: 2025/06/18 20:28 by kkubiak

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