Arecibo Observatory

ALFALFA IDL documents

As in everything associated with this website: YOU GET WHAT YOU PAY FOR!
  1. Check with RG or BK to see if these are still valid;
  2. Subscribe to the ALFALFA Wiki
  3. Don't expect perfection; and
  4. Some people deserve a lot of thanks for their efforts!

  • IDL Procedures
  • Instructions on Level I processing
        Read this very detailed document very carefully!
  • Kristine's hints on Level I processing, esepecially at AO
  • Instructions on running the 2-D signal extractor
  • Instructions on running the 3-D signal extractor
  • Instructions on processing grids
        Be sure you have all the right version of the software, with the proper pointing corrections (see below, too)...
  • Notes on position offsets
  • Instructions on fitting the continuum & deriving position offsets
  • Instructions on depositing grids in archive
  • List of grids in the current archive (09Jul01)
  • Instructions on measuring fluxes
  • Contents of ALFALFA catalogs
  • File naming conventions
  • Download the code
  • Note about OH Megamasers

    • Please read this message about access to the Haynes-Giovanelli AGC database.
    Info about the AGC is here.


    Be sure to subscribe to the ALFALFA Wiki so that you can learn about updates, installation issues, bugs, etc. You can also post your own questions there. USE IT!


    The Cornell EGG folks are linux users, but several members of the team (Tom Balonek, John Salzer, Jeff Miller) are Mac users. As far as we know, LOVEDATA runs just fine under Mac-OS. Jeff Miller (St. Lawrence) contributes these PDF instructions on installing IDL on a Macintosh. Thanks Jeff!



    This page maintained by members of the Cornell ExtraGalactic Group.

    Last modified: Fri Jun 26 16:32:07 EDT 2009 by martha