ALFALFA

The Arecibo Legacy Fast ALFA Survey

  • ALFALFA Spring Semester 2008: Completed Observations

    • Observations in the R.A. range from 07h30m to 16h30m in the first survey years focused on the tiles centered at +06, +10 and +14 degrees; this region was (almost) completely covered by early 2007. Much of the +10 and +14 deg tile data has been processed into cubes and sources are being extracted. A first data release accompanied the acceptance of the first survey paper in early 2007 and others are in the works; see the links to Publications and Data above.

    In late Spring 2006, we also started work on the northern region starting with the +30 degree tile. Our plan for Spring 2007 was to completely cover the +26 and +30 degree tiles (from +24 to +32 degrees), which includes the Coma cluster. Unfortunately, due to the major telescope painting project, we managed to complete only the first pass of most of the northern region. There are a lot of galaxies to be mined there, but we do not have the 2 pass coverage required to construct grids. We are working now to finish this region in Spring 2008; we are schedule to complete the main part of the observations on March 30th, with only a bit of clean-up to do after that.

    After that region, we plan to start the equatorial strip from 0 to +04 degrees Decl. That is scheduled to begin on March 31, 2008

    The graphical summaries below indicate the A2010 coverage up to and including the spring 2008 observing season.

    Yellow indicates planned observations in pass 1.
    Green indicates completed observations in pass 1.
    Gold indicates planned observations in pass 2.
    Cyan indicates completed observations in pass 2.
    Brown indicates poor quality data (hardware failure, gain instability or unusual rfi)
    Pink indicates the area to be covered next (may be started but not completed in 2006)


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    The numbers on the left axes refer to the declination setting designations.

    Click here to see the actual observing block allocation summary for Spring 2008.


    Last modified: Mon Mar 23 10:04:38 EDT 2008 by martha