The Arecibo Legacy Fast ALFA Survey

ALFALFA Spring Semester 2007: Completed Observations

Observations in the R.A. range from 07^h30^m to 16^h30^m 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. Stay tuned until next year....

The graphical summaries below indicate the A2010 coverage up to and including the spring 2007 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)

Click here to see larger version.

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

Click here to see the actual observing block allocation summary for Spring 2007.

Last modified: Wed Apr 11 18:13:12 EDT 2007 by martha