Synopsis
This checklist describes the procedure for aligning multi-object
slitmasks on DEIMOS using the
Slitmask
Alignment Tool (SAT), in the
Imaging Coarse Align mode. This SAT
mode will be typically used only in the case the
Fine Alignment
procedure does not converge.
- Preliminaries
- Launch SAT
- Focus telescope
- Configure DEIMOS
- Imaging Coarse Alignment
- Select Imaging Coarse Align tab
- Select the desired mask name under Mask
- Click on Acquire.
- Select fiducial star.
- Check the matching.
Preliminaries
- Launch SAT.
- Focus telescope.
- In the MAGIQ UI, middle click on your next target.
- Ask to OA to run Mira in the neighborhood
of your target. If you'll be on the field for several
hours, then have the OA focus 1-2 hours west of the field.
- Wait about 10 minutes for the OA to acquire an
appropriate star and run Mira.
- Configure DEIMOS.
- Insert desired slitmask. You can do this while the
telescope slews.
- Send grating to zeroth-order position by clicking the
GO ZERO button on the DEIMOS Dashboard GUI's
grating subpanel.
- Select Imaging Coarse Align tab. Click the Imaging Coarse Align tab on the SAT.
- Select mask. Click on the drop-down menu next
to Mask: (bottom-left side of the SAT window).
- Acquire. Click on the Acquire button. This will
- Take an image of the field with the selected mask.
- Take an image of the field without the selected mask.
- Show both images in the display region.
- Select fiducial star. Click on any star in the
displayed field, wich you can identify as one of the
fiducial stars. The system will automatically move the
telescope to match the star position to the nearest box.
- Check the matching If the selected star is correctly
moved to the nearest box, go back to
the Fine
Alignment procedure, otherwise go back to step 3.