This page describes how to use my python code, IGRINS Observably, for making finder charts. The finder charts are designed to match what you will see in the IGRINS slit view camera field of view. They can be used for planning observations, and at the telescope to match what you are seeing in the slit view camera.
You can download the latest version of IGRINS Observability on the Software Page.
IGRINS Observability has the following requirements:
- DS9 7.2 callable from the command line (might work on earlier versions)
- XPA for allowing commands to be given to DS9 from the command line
- Python 2.6 or 2.7 (untested on other versions)
- Scipy
- Matplotlib
Setting up input files.
For each target you want to make a finder chart for, you must set up an input file in the /input/ directory. Your basic input file will look like this:
#Input file for making finder and observability charts
#--------------------Select Charts To Display---------------------------------------
y #Show telescope Hour Angle observing limits
y #Show altitude vs. Local Siderial Time plot with telescope observing limits
y #Show finder chart for IGRINS Slit View Camera FOV
#--------------------Target Info------------------------------------------
135.0 #Sky Position Angle (Start north and go east, N=0, E=90, S=180, W=270 degrees, Default = 90 deg slit oriented east-west)
2 #1=Input object as RA & Dec., 2=Input object name
HD 219485 #Object Coordinates in RA & Dec [hh:mm:ss.ss<space>+/-hh:mm:ss.s], or Object Name
#--------------------Guide Star Info---------------------------------------
0 #Input guide star as... 0=no guide star, 1=dRA & dDec, 2=RA & Dec., 3=guide star name
#Guide star offset in dRA & dDec [arseconds<space>arcseconds], coordinates in RA & Dec [hh:mm:ss.ss<space>+/-hh:mm:ss.s], or Name
#--------------------User Supplied FITS File---------------------------------------
#Fits file path for making finder chart, leave blank if you just want to use 2MASS K-band