Fred Schwab's Home Page

  • Ka/CCB fitting example
  • Recent Activities

  • Demo analysis of NSI data for ALMA Band 9 receiver cartridge, Scan 103, in Mathematica
  • Far-field cross-polarization pattern of ALMA holography horn, derived from NA FEIC scanner data
  • Band 6 far-field beam patterns derived from NSI scanner measurements, in 3-D perspective
  • Band 6 individual far-field Beam1 and Beam2 maps, compared with the (Beam1+i Beam2)/2 combination
  • Far-field analysis of Band 7 Scan Pairs 15 and 16; 17 and 18; and 21 and 22.
  • Test run on Band 6 measurements with Effland's 3rd floor NTC scanner.

  • 43meter deformable subreflector results from survey data acquired on Feb. 12, 2013. (These are the results presented at the RadioAstron meeting on Feb. 14, 2013.) [Updated Feb. 18, 2013.]
  • 43meter deformable subreflector results from first run (A2_14_13A.DAT) of Feb. 14, 2013. [Added Feb. 18, 2013.]
  • 43meter deformable subreflector results from second run (B2_14_13B.DAT) of Feb. 14, 2013. [Added Feb. 18, 2013.]
  • Contour maps of the difference in z-residuals, (Run 2 minus Run 1) and (Run 3 minus Run 1), where Run 1 refers to the Feb. 13 survey run, Run 2 refers to the first survey run of Feb. 14, and Run3 refers to the second survey run of Feb. 14. Compare with Tim Weadon's results in his e-mail of 02/19/2013 (09:09 AM). [Added Feb. 20, 2013]
  • 43meter deformable subreflector results from first run (2_20_13A.DAT) of Feb. 20, 2013. [Added Feb. 20, 2013.]
  • 43meter deformable subreflector results from second run (2_20_13B.DAT) of Feb. 20, 2013. [Added Feb. 20, 2013.]
  • Contour maps showing the difference between the Feb. 20 z-residuals, Run 4 minus Run 1, and Run 5 minus Run 2. [Updated Apr. 25, 2013]

  • Example for Harvey.









  • Frederic R. Schwab
    National Radio Astronomy Observatory
    520 Edgemont Road
    Charlottesville, VA 22903-2475
    USA
    (434) 296-0331, Fax (434) 296-0278
    fschwab@nrao.edu