Purpose

IMPORTANT NOTE: This procedure is deprecated. Please, use the Slitmask Alignment Tool (SAT) checklist to perform the mask alignments.

This checklist describes the procedure for aligning multiobject slitmasks on DEIMOS, assuming you are:

Procedure: Synopsis

This is a brief version for use by experienced DEIMOS observers. Novices should read the detailed procedure below.

Procedure: Detail

Complete preliminary steps

Complete coarse acquisition

The goal of this step is to put the alignment stars into their boxes by placing a fiducial star onto a specified guider pixel.

Note: If you are unable to complete this step, then you may need to resort to the alternative method of completing the coarse alignment.

Complete fine alignment

In this step, you will refine the positions of the stars within their respective alignment boxes to achieve optimal centering of the slitmask.

Acquire science image

Alternative Coarse Alignment Procedure

If the Easy Way fails to work (for example, predicted TV guider pixel positions are not available), you can try this alternative method:

See Also