[daip] VPLOT model plot.
Craig Walker
cwalker at nrao.edu
Wed Jul 9 20:02:33 EDT 2008
When plotting models on the data with VPLOT with NMAPS < 0 for a smooth
plot, the model is there most, but not all, of the time. There seem to
be periods when it just stops being plotted. This is for phase. The
vanished model seems to be for periods when the absolute value of the
phase would be above about 100 deg (happens on both sides of zero).
When self scaling, it sometimes plots the data on a range up to over 400
degrees and, in those cases, very little of the model shows, so I think
this is consistent with staying between -100 and +100.
This is happening on my Linux box with data on Fred's box. Since this
is a fixed machine at NRAO, I presume the midnight job is up-to-date.
The data are on SUM-FDAVIES_1 under user 542. This is plotting of a CC
table attached to a UV data set.
You might hear more later about the amplitudes as the model from UVFIT
doesn't match the data at all. But I just noticed that and haven't got
it figured out yet.
Cheers,
Craig
Here are the inputs:
inp vplot
AIPS 1: VPLOT Plots data from a u,v data base, model from a CC file
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: USERID 0 Data base owner number
AIPS 1: INNAME 'BW090LM84' Input UV file name (name)
AIPS 1: INCLASS 'SPLIT4' Input UV file name (class)
AIPS 1: INSEQ 1 Input UV file name (seq. #)
AIPS 1: INDISK 3 Input UV file disk unit #
AIPS 1: IN2NAME 'BW090LM84' Input CC file name (name)
AIPS 1: IN2CLASS 'SPLIT4' Input CC file name (class)
AIPS 1: IN2SEQ 1 Input CC file name (seq. #)
AIPS 1: IN2DISK 3 Input CC file disk unit #
AIPS 1: IN2VERS 1 Input CC file version #
AIPS 1: NCOMP *all 0 # comps to use for model.
AIPS 1: 1 value per field
AIPS 1: total 25000 CCs maximum
AIPS 1: FLUX 0 Lowest CC component used.
AIPS 1: NMAPS -1 # clean maps (fields).
AIPS 1: 0 => no model
AIPS 1: >0 => model at samples
AIPS 1: <0 => model smoothly
AIPS 1: Data selection:
AIPS 1: SOURCES *all ' ' Source list
AIPS 1: QUAL -1 Source qualifier -1=>all
AIPS 1: CALCODE ' ' Calibrator code ' '=>all
AIPS 1: SELBAND -1 Bandwidth to select (kHz)
AIPS 1: SELFREQ -1 Frequency to select (MHz)
AIPS 1: FREQID 0 Freq. ID to select.
AIPS 1: BCHAN 1 Lowest channel number 0=>1
AIPS 1: ECHAN 1 Highest channel number
AIPS 1: AVGCHAN 1 > 0 => average BCHAN-ECHAN
AIPS 1: BIF 1 Lowest IF number 0=>1
AIPS 1: EIF 2 Highest IF number 0=>high
AIPS 1: AVGIF 1 > 0 => average IFs
AIPS 1: CROWDED 3 Plot chans/IFs together or
AIPS 1: separately? 0 separate,
AIPS 1: 3 all together, 1 & 2 partly
AIPS 1: DO3COL 1 Plot separate IFs in separate
AIPS 1: colors.
AIPS 1: XINC 0 Plot every XINC'th visibility
AIPS 1: 0 => 1
AIPS 1: UVRANGE 0 0 Range of projected spacings
AIPS 1: (thousands of wavelengths)
AIPS 1: TIMERANG *all 0 Time: start day,hr,min,sec
AIPS 1: stop day,hr,min,sec.
AIPS 1: STOKES 'I' Stokes' parameters
AIPS 1: ANTENNAS *all 0 Antennas to be plotted
AIPS 1: BASELINE 1 2 Baselines with ANTENNAS
AIPS 1: 3 4 See explanation.
AIPS 1: 5 6 7 8
AIPS 1: 9 *rest 0
AIPS 1: DOCALIB 0 > 0 calibrate data & weights
AIPS 1: > 99 do NOT calibrate weights
AIPS 1: GAINUSE -1 CL (or SN) table to apply
AIPS 1: DOPOL -1 If >0 correct polarization.
AIPS 1: BLVER -1 BL table to apply.
AIPS 1: FLAGVER -1 Flag table version
AIPS 1: See explanation.
AIPS 1: DOBAND -1 If >0 apply bandpass cal.
AIPS 1: Method used depends on value
AIPS 1: of DOBAND (see HELP file).
AIPS 1: BPVER 0 Bandpass table version
AIPS 1: SMOOTH *all 0 Smoothing function. See
AIPS 1: SUBARRAY 0 Subarray number 0=>1.
AIPS 1: -1 => all, but beware!
AIPS 1: DOEBAR -1 If > 0, plot error bars,
AIPS 1: else don't
AIPS 1: SOLINT 0.4 Time over which to average
AIPS 1: data before plotting (mins)
AIPS 1: =0 => no averaging
AIPS 1: >0 SOLINT=MIN(SOLINT, SCAN)
AIPS 1: <0 SOLINT=ABS(SOLINT)
AIPS 1: average through scans
AIPS 1: OPTYPE ' ' 'AUTO' => autocorrelation
AIPS 1: else =>crosscorrelation
AIPS 1: OPCODE ' ' Type of plot:
AIPS 1: 'IFRA' => ratio BIF and EIF
AIPS 1: else => plot requested IF
AIPS 1: APARM *all 0 Control parameters
AIPS 1: 1 : > 0 => edit bad
AIPS 1: amplitude points.
AIPS 1: BPARM(2)=0, or 1
AIPS 1: = 0 => do not edit
AIPS 1: bad amplitude points.
AIPS 1: Number of averaged points
AIPS 1: for each baseline has to
AIPS 1: be more than 10.
AIPS 1: 2 : number of sigmas outside
AIPS 1: of which bad points are
AIPS 1: clipped (See HELP); 0=>3.
AIPS 1: 3 : > 0 plot min/max range
AIPS 1: with average
AIPS 1: = 0 do not plot min/max
AIPS 1: lines
AIPS 1: 4 : = 0 min/max over selected
AIPS 1: IFs after averaging
AIPS 1: selected CHs
AIPS 1: > 0 min/max over all
AIPS 1: selected CH/IFs
AIPS 1: 5 : > 0 scalar average
AIPS 1: = 0 vector average
AIPS 1: 6 : used with APARM(1)>0
AIPS 1: >0 flag the bad points
AIPS 1: for all channels
AIPS 1: =0 flag the bad points
AIPS 1: only for the selected
AIPS 1: channels
AIPS 1: 7 : est total plot points
AIPS 1: BPARM 12 2 Control parameters
AIPS 1: 2 : Y-axis type code;
AIPS 1: if <0 => AMP & PHASE
AIPS 1: plotted together
AIPS 1: 3 : >0.0 => fixed scale
AIPS 1: <0.0 => fixed range
AIPS 1: 0.0 => sep. scales
AIPS 1: 4 : Xmin (fixed scale)
AIPS 1: 5 : Xmax (fixed scale)
AIPS 1: 6 : Ymin (fixed scale)
AIPS 1: 7 : Ymax (fixed scale)
AIPS 1: 8 : PHmin (fixed scale)
AIPS 1: 9 : PHmax (fixed scale)
AIPS 1: 10: > 0 -> plot models for
AIPS 1: baselines with no data
AIPS 1: ALIAS *all 0 Antenna alias selection
AIPS 1: If ALIAS(1) is non-zero, any
AIPS 1: antennas matching ALIAS(2-30)
AIPS 1: are treated as if they were
AIPS 1: actually ALIAS(1)
AIPS 1: REFANT 0 > 0 -> use REFANT for hour
AIPS 1: angle, elevation, et al.
AIPS 1: NPLOTS 9 Max number of plots per page.
AIPS 1: 0 => 3; If bparm(2)<0 =>
AIPS 1: Max number of pairs of plots.
AIPS 1: DOARRAY 0 Array type : 0 = VLBI
AIPS 1: 1 = VLA and ATCA;
AIPS 1: 2 = MERLIN; 3 = WSRT
AIPS 1: POLPLOT ' ' Option to display various
AIPS 1: ratios of polarizations:
AIPS 1: 'RL/RR', 'RL/LL', 'LR/RR',
AIPS 1: 'LR/LL', 'RR/LL' 'LL/RR';
AIPS 1: 'Q/I', 'U/I', 'V/I'.
AIPS 1: other = plot data directly
AIPS 1: SYMBOL 23 Symbol to use when plotting.
AIPS 1: 0 => Vertical line
AIPS 1: 1 - 23, standard types
AIPS 1: FACTOR 0 Scale symbol by FACTOR
AIPS 1: LTYPE 4 Type of labeling: 1 border,
AIPS 1: 2 no ticks, 3 - 6 standard,
AIPS 1: 7 - 10 only tick labels
AIPS 1: <0 -> no date/time
AIPS 1: DOTV 1 > 0 Do plot on the TV, else
AIPS 1: make a plot file
AIPS 1: GRCHAN 0 Graphics channel 0 => 1.
--
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R. Craig Walker Array Operations Center
cwalker at nrao.edu National Radio Astronomy Observatory
Phone 505 835 7247 P. O. Box O
Fax 505 835 7027 Socorro NM 87801 USA
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