The 'standard plots' for GP052C are as follows:

  gp052c-weight.ps                station weight vs. time 
  gp052c-auto-[1,2].ps            station autocorrelation vs. freq (bin 14/16)
  gp052c-cross-[1-3][a,p].ps      baseline amp/phs vs. freq (bin 14/16)
  gp052c-ampphase-[a,p][1-3].ps   baseline amp/phs vs. time (bin 14/16)
  gp052c-ampphase-p[4-10].ps         baseline phs vs. time various bins

The auto and cross plots show 1 minute of data from scan 2 (J1932+1059, [1]) 
and scan 15 (B1957+20, [2]).  There is an additional cross plot pair showing
1 minute of data from scan 23 (J2013_3153) on only baselines formed from
{Jb,Wb, Ar,Sc} (for the detections on the shortest baselines).
The ampphase plots show amp [a] and phase [p] over a variety of subsets
of the data and different bins, as described in more detail below.

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 plots shows the weights for all IFs/pols per station, with each
4s 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


(b) AUTOCORRELATION SPECTRA plots

  The plots show data from the scans listed above.  The IFs for each station
are separted by the vertical dashed lines.  Since each station self-scales,
y-axes may not go down to zero.  The polarization color-coding is 
RR=red, LL=blue. 


(c) BASELINE SPECTRA plots 

  The baseline vs. frequency plots show vector-averaged amplitude and phase 
for all baselines for same the time ranges as the autocorrelation plots, with
with amp & phase going to separate plots denoted by the 'a' or 'p' following
the scan identifier, using the same baseline lay-out on the page.
IFs per baseline are separated by the dashed vertical lines.
The polarization color-coding is RR=red, LL=blue, RL=cyan, LR=green.
Phase(freq) plots show only parallel-hands for clarity.


(d) AMP/PHASE(t) plots 

  The baseline vs. time plots show amplitude and phase for non-target scans,
with amp & phase going to separate plots, denoted by the 'a' or 'p' following
'ampphase-'.  Each 4s integration is plotted as a separate ".", with the
middle 80% of the band used for vector-averaging over frequency.  Only
the first three IFs went into these plots, since most stations had no
signal in IF4 (which masked the behavior of lower IFs on the plot).
The IF/pol color-coding is the same as in the weight plots, with the
IF4 colors omitted.

Details about each kind of plot:
    amp & phase:
 [1]: B1957+20 scans on baselines Ar-*
 [2]: the J1932+1059 scan on all baselines
 [3]: the non-pulsar scans, with the (4s) integration number per baseline as 
    the x-axis, "collapsing" the large gaps in time between these scans to
    allow seeing the behaviour with time.  

    phase only:
 [4]-[6]: phase(t) on baselines Ar-* for bins 13,14,15 of the 16-bin over
       the full period pass
 [7]-[10]: phase(t) on baselines Ar-* for each of the four narrow bins
       over the pulse

The phase-only plots show only IF2 to provide the least-cluttered traces, 
with color-coding  red=RR, blue=LL.