The 'standard plots' for GV020D are as follows:

  gv020d.{wat}-weight.ps              station weight vs. time 
  gv020d.{wat}-auto-[1,2].ps          station autocorrelation amp vs. freq
  gv020d.{wat}-cross-[1,2][a,p].ps    baseline amp/phs vs. freq
  gv020d.{wat}-ampphase-[a,p].ps      Ef-* baseline amp/phs vs. time,
                                         plus separate Ef-Tr phs(t) for psrc

The field {wat} represents the pass using different correlation phase centers:
   psrc,  s1,  xrb,  vrtx1,  vrtx2,  vrtx3
The auto and cross plots show data from scan 38 [1] (3C454.3) and 
scan 125 [2] (J2139+1423).  The ampphase plots show amp [a] or phase [p] 
vs. time for the whole experiment, omitting target scans.  

The antenna numbering in these plots is 0-based -- thus one less than the
corresponding antenna numbers in the AIPS FITS file.


(a) WEIGHT plots

  The plot shows the weights for all IFs (parallel-hands only) per station,
with each 0.5s integration plotted as a separate ".".   The IF/pol 
color-coding is:

 IF1/RR = red    IF1/LL = blue      IF2/RR = cyan        IF2/LL = green
 IF3/RR = pink   IF3/LL = med.grey  IF4/RR = brown       IF4/LL = purple
 IF5/RR = teal   IF5/LL = yellow    IF6/RR = steel blue  IF6/LL = lt.grey
 IF7/RR = black  IF7/LL = orange    IF8/RR = lt.green    IF8/LL = lt.purple


(b) AUTOCORRELATION SPECTRA plots

  The plots show data from the scans listed above.  The IFs for a station
are plotted side-by-side, with RFI in one IF able to throw off the y-axis
scale for other IFs.  The polarization color-coding is RR=red, LL=blue.
The first & last frequency points have been omitted.

(c) BASELINE SPECTRA plots 

  The baseline vs. frequency plots show vector-averaged amplitude and phase 
for all baselines for the same scans as the autocorrelation plots, with amp &
phase going to separate plots using the same baseline lay-out on the page.
The polarization color-coding remains RR=red, LL=blue.  The first & last
frequency points have been omitted in the amp(frq) plots.


(d) AMP/PHASE(t) plots 

  The baseline vs. time plots show amplitude and phase for non-target scans 
on Ef-*, with amp & phase going to separate plots.  Each 0.5s integration 
is plotted as a separate ".", with the middle 80% of the band used for 
vector-averaging over frequency.  The IF/pol color-coding is the same as 
for the weight plot.  There is a separate plot of phase(t) for only Ef-Tr
(gv020d.psrc-ampphase-EfTr-p.ps), with the IFs plotted separately, to show
more detail in light of Tr IF7-8/LCP being dead (see cover letter).