The 'standard plots' for EV018D are as follows:

  ev018d-weight.ps                    station weight vs. time 
  ev018d-auto-[1,2]{sep}.ps           station autocorrelation amp vs. freq
  ev018d-cross-[1,2][a,p].ps          baseline amp/phs vs. freq
  ev018d-ampphase-[1..4][a,p]{Wb}.ps  Ef-* {or Wb-*} baseline amp/phs vs. time

The auto and cross plots show data from scan 52 (J1800+3848) [1] and 
scan 220 (3C454.3) [2].  The ampphase plots show amp [a] or phase [p] 
vs. time, omitting target scans; ampphase plots [1]-[3] show data for
the reference sources for the individual pulsars (1=B1929, 2=B2020, 3=B2021); 
plot [4] shows the whole experiment.  For ampphase plot [3], there are also
versions which show Wb-* baselines, since Ef misses the last ~1h20m of
this pulsar.

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 1s 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 2 minutes of data from the scans listed above.  The IFs for
a station are plotted side-by-side (the [2] plot with "sep" appended in the
file-name place the IFs into separately-scaled plots to avoid peaks in one 
IF from throwing off the y-axis scale for other IFs).  The polarization
color-coding is RR=red, LL=blue.  The y-axis ranges don't necessarily go 
down to zero.


(c) BASELINE SPECTRA plots 

  The baseline vs. frequency plots show vector-averaged amplitude and phase 
for all baselines for the same scans/data-intervals 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.


(d) AMP/PHASE(t) plots 

  The baseline vs. time plots show amplitude and phase for non-target scans 
on Ef-* (and Wb-* for plot [3]), with amp & phase going to separate plots, 
and with time ranges described above.  Each 1s integration is plotted as a 
separate ".", with the middle 80% of the band used for vector-averaging over 
frequency.  The phase(t) plots show only RCP from IFs 1-3 to avoid the problems
in Sv with in the upper 4 IFs (outside its top frequency), Zc in IF4 
(up-converter RFI in band at 4979.9), and LCP for Tr in IFs 3-4 (dead BBC).  
The color-coding for the phase(t) plots is: 
        IF1/RR = red    IF2/RR = blue    IF3/RR = cyan 
The amp(t) plots omit the fringe-finders to avoid throwing off the y-axis 
scale, with IF/pol color-coding the same as in the weight plot.