Quick Look Tool GUI

NIRES uses an IDL based quicklook tool.

( QL ).
Spectroscopy QL

QL GUI Menus

This QL has some tabs that have the following uses:

• The Math tab for operations with images such as sdiff (subtracts the previous image from the current image), arithmetic operations, photometry, and bias and flat-field correction.

  

• The Plot tab for plotting options such as profile cuts (vertical, horizontal, and diagonal) and also Gaussian fits. Note that the Gaussian fit option allows the observer to move the telescope so that the slit goes to the Gaussian centroid. The slitang calculation has not been implemented yet.

  

• The Tel tab for telescope moves between two points (Move Telescope) or from a point to a predefined slit center (Slit center). The scam PA and slit PA options have not been implemented.

  

QL command line options

In addition, while there are no images being taken (no gois or goiv) the following python commands can be used:

dv n1 n2

This command will subtract slit viewing camera image number n2 from image number n1 and display the n2-n1 image. If only one argument is given then the script displays that image number. The script only needs the image number as it completes the image name based on the current observing root filename. Example: dv 4 3 will display image v190212_0004.fits minus v190212_0003.fits if today is Feb 12, 2019.

ds n1 n2

This command will subtract spectroscopy image n2 from n1 and display the n2-n1 image. If only one argument is given then the script displays that image number.