Plots show an illustrative subset of antennas.
uvspec vis=PicA.uv stokes=xx,yy select="ant(1,5,12,17)" \ interval=15 options=nocal,nopass \ nxy=3,6 device=/vcpsView plot (pdf file).
Even after autoflag, YY is generally too high on many baselines.
Also, some baselines (e.g. BL 17--19) look strange...
Frequent bad channel near right edge of band.
uvspec vis=PicA.uv stokes=xx,yy select="ant(1,5,12,17)" \ axis=chan,phas interval=15 options=nocal,nopass \ nxy=3,6 device=/vcpsView plot (pdf file).
Phase generally looks coherent except BL 7--*, maybe BL 15--*
uvspec vis=PicA.uv stokes=xx,yy select="ant(1,5,12,17)" \ interval=15 nxy=3,6 device=/vcpsView plot (pdf file).
Freakish outcome!
ALL of YY channels are bad.
Many XX channels are bad on most BLs - like sharp narrow-band RFI.
Handful of XX BLs look normal.
uvspec vis=PicA.uv stokes=xx,yy select="ant(1,5,12,17)" \ axis=chan,phas interval=15 nxy=3,6 device=/vcpsView plot (pdf file).
Phase is generally noisy - nocal,nopass looked a lot better.
Few baselines look very coherent; several have phase wraps.
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Shami Chatterjee shami at astro.cornell.edu Created: 26 Aug 2009 |
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