Content Comparison

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• Python 3 (anaconda recommended)

• DS9 https://sites.google.com/cfa.harvard.edu/saoimageds9 (on Mac we recommend the X11 version as is the simplest to set up and use with XPA and the IGRINS Observing Planner)

• XPA

  • On Mac:

    • Install XQuartz version 2.8.4 [NOT 2.8.5 which will behave like garbage] https://www.xquartz.org/releases/XQuartz-2.8.4.html

      Install the X11 version of DS9 for your mac and macos types, put it in your Applications directory https://sites.google.com/cfa.harvard.edu/saoimageds9/download

      Right click ds9 in Applications, click open, give permissions that you want to open it, you might need to do this in the Privacy & Security System Settings in new versions of macOS.

      Install Macports (if not already installed) https://www.macports.org/install.php

      Install XPA with macports. Open a terminal and type the following: sudo port install xpa

      Add the following to your ~/.zschrc file:

      Code Block
      PATH="/usr/local/bin:$PATH” export XPA_METHOD=local PATH="/Applications/:$PATH”```

      Open a new terminal and test

      Code Block
      ds9 & xpaaccess ds9

      If the result says “yes”, you are ready to go!

      If you are still having issues, see

      https://community.lsst.org/t/ds9-communication-via-xpa/2242

  • For other OSes, download here https://sites.google.com/cfa.harvard.edu/saoimageds9/download?authuser=0

  )

• astroquery https://astroquery.readthedocs.io/en/latest/#

  • Install the latest version with the following in the terminal: python -m pip install -U --pre astroquery

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