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--- chara:operating_procedures [2023/05/18 14:08]
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+++ chara:operating_procedures [2023/05/18 14:23]
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 In the WFS GUI or obsgtk, turn the cooler on (COOL ON) and open the camera shutter (SOPEN) or SHUTTER (OPEN/CLOSE), then CameraLink on (CL ON) if it is off, Camera on (CAM ON), and start TWFS display (MOVIE). For the scopes with DMs, use the POWER ON button on the WFS GUI (WFS/AO tab) to power the DM on, make sure that the DM current and temperature are displaying numbers.
+**NOTE:**  There are now two sets of boxes on the TWFS. The blue boxes are for locking on starlight and are the default reference position. The green boxes can be offset from these to correct for the misalignment between the beacon and the IR starlight. At the beginning of the night, the red beacon must be aligned to the blue starlight boxes with the telescope at stow (see [[:chara:new_alignment_procedures|New Alignment Procedures]]). You can zero out any offsets between the green beacon boxes and the blue starlight boxes on the telescope WFS using ZERO BCN.
 Turn on the ACQ camera in the obsgtk. Make sure that the beacon is going through the hole in the acquisition display. If not, use Beacon UP/DOWN etc buttons on a HUT gui or WFS tab on the obsgtk to move it into the hole. Look for spots to be in boxes on the WFS display. Turn on the boxes on the obsgtk (NOBOX) to see how the alignment is. The boxes may be in the default position or may be moved to a position that worked better when observing. Align to whichever gives a more even illumination of spots in the boxes. As the red beacon is bright, use low gains, ie. 30-50 for the BARE dichroic or 200/300 for the IR dichroic, to make these alignments. If the red beacon spots on the WFS display are in the boxes, press (ALIGN BEACON) on the ALIGN tab on the TWFS GUI or (ALIGN) TELWFS: on the obsgtk, wait for completion. The values should reach zero in both the X and Y axes. The default maximum number of tries is 10 so if it is not aligned before it ends, repeat the step if needed.
-Turn labao camera (ON) and (START) the display. Make a dark with the MKDRK button in the LABAO section of the obsgtk. Turn on the blue beacon. The blue beacon should show spots on the LABAO display. Adjust the FPS lower if they are dim. 100 FPS is the default, but 40 is often used for observing. Set the M7 mirror to the default position, then use the DICHROIC buttons on the WFS tab of the telescope gui, obsgtk or HUT gtk to get them in the boxes. When the spots are inside the boxes, press (SCOPE DICH) button in the ALIGN tab on the LABAO GUI or the (ALIGN) LABAO: on the obsgtk to align the spots.
+Turn labao camera (ON) and (START) the display. Make a dark with the MKDRK button in the LABAO section of the obsgtk. Turn on the blue beacon. The blue beacon should show spots on the LABAO display. Adjust the FPS lower if they are dim. 100 FPS is the default, but 40 is often used for observing. **Set the M7 mirror to the default position.**  Then use the DICHROIC buttons on the WFS tab of the telescope gui, obsgtk or HUT gtk to get them in the boxes. When the spots are inside the boxes, press (SCOPE DICH) button in the ALIGN tab on the LABAO GUI or the (ALIGN) LABAO: on the obsgtk to align the spots.
 If the spots do not show at all in the labao, the scope dichroic is likely out of alignment. Turn on the lab laser and set it to ND 4.0. Look for additional spots in the ACQ window that are not from the beacon. Use the Dichroic controls to make the laser spots match the blue beacon spots on the ACQ camera view. Up is to the upper right in the ACQ view. If they are way off or not visible in the ACQ, you can hit the button for the appropriate dichroic in the HUT gui and it will set the dichroic to its last saved default position.

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