[daip] [!6785]: AIPS - clplt problem
Gisela Ortiz
do-not-reply at nrao.edu
Tue Jun 23 14:00:49 EDT 2015
Gisela Ortiz updated #6785
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clplt problem
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Ticket ID: 6785
URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/6785
I'm trying to plot closure phases using the task CLPLT. I cannot plot the data if I set docal=1 and gainuse=5. The table CL-5 was created with CLCAL to apply the solutions from global fringe-fitting on the source SGRA.
I attach the plot when applying CL 4 for triangle 234 when you can see good phases, and when applying CL 5 I got the following message,
vlba1.> CLPLT1: vlba1 31DEC15 TST: Cpu= 17.3 Real= 17 IO= 22743
vlba1.> CLPLT1: Task CLPLT (release of 31DEC15) begins
vlba1.> CLPLT1: Averaging from channel 1- 64
vlba1.> CLPLT1: Averaging from IF 1- 16
vlba1.> CLPLT1: UVGET: Using flag table version 2 to edit data
vlba1.> CLPLT1: FOUND 0 POINTS: NOT ENOUGH TO SELF-SCALE
vlba1.> CLPLT1: Purports to die of UNNATURAL causes
vlba1.> CLPLT1: vlba1 31DEC15 TST: Cpu= 9.0 Real= 9 IO= 11372
the data are not flagged because I can see the visibilities with the task EDITR (figure also attached) by setting also docal=1 and gainuse=5.
Changing the number of IFs or channels to average, or the solint parameter do not make any difference.
The project is BD183C which use the LMT antenna. Here are the inputs of the CLPLT task:
AIPS 1: CLPLT Plots data from a u,v data base, model from a CC file
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: USERID 0 File owner number - ignored
AIPS 1: INNAME 'BD183CLOW' Input UV file name (name)
AIPS 1: INCLASS 'UVDATA' Input UV file name (class)
AIPS 1: INSEQ 1 Input UV file name (seq. #)
AIPS 1: INDISK 1 Input UV file disk unit #
AIPS 1: IN2NAME ' ' Input CC file name (name)
AIPS 1: ' ' => no model
AIPS 1: IN2CLASS ' ' Input CC file name (class)
AIPS 1: ' ' => no model
AIPS 1: IN2SEQ 0 Input CC file name (seq. #)
AIPS 1: IN2DISK 0 Input CC file disk unit #
AIPS 1: IN2VERS 0 Input CC file version #
AIPS 1: NCOMP *all 0 # comps to use for model.
AIPS 1: 1 value per field
AIPS 1: FLUX 0 Lowest CC component used.
AIPS 1: NMAPS 0 # clean maps (fields).
AIPS 1: 0 => no model
AIPS 1: Data selection:
AIPS 1: SOURCES 'SGRA' Source list
AIPS 1: *rest ' '
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 -1 Freq. ID to select.
AIPS 1: BCHAN 1 Low channel # averaged 0=>1
AIPS 1: ECHAN 0 High channel # averaged
AIPS 1: BIF 0 Low IF # averaged 0=>1
AIPS 1: EIF 0 High IF # averaged 0=>max
AIPS 1: XINC 1 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 ' ' Stokes' parameters
AIPS 1: TRIANGLE 2 3 Closure triangles to plot.
AIPS 1: 4 *rest 0 See HELP.
AIPS 1: DOCALIB 1 > 0 calibrate data & weights
AIPS 1: > 99 do NOT calibrate weights
AIPS 1: GAINUSE 5 CL (or SN) table to apply
AIPS 1: DOPOL -1 If >0 correct polarization.
AIPS 1: PDVER 0 PD table to apply (DOPOL>0)
AIPS 1: BLVER -1 BL table to apply.
AIPS 1: FLAGVER 0 Flag table version
AIPS 1: DOBAND -1 If >0 apply bandpass cal.
AIPS 1: Method used depends on value
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: of DOBAND (see HELP file).
AIPS 1: BPVER -1 Bandpass table version
AIPS 1: SMOOTH *all 0 Smoothing function. See
AIPS 1: SUBARRAY 0 Subarray number 0=all.
AIPS 1: DOEBAR -1 If > 0, plot error bars,
AIPS 1: else don't
AIPS 1: SOLINT 0.5 Time interval over which to
AIPS 1: average data in order to
AIPS 1: form closure phase (mins).
AIPS 1: See HELP for hints on how
AIPS 1: to use this.
AIPS 1: OPCODE ' ' If OPCODE = 'INDE' will plot
AIPS 1: all independent closure
AIPS 1: phases.
AIPS 1: IF OPCODE = ' ' will plot all
AIPS 1: closure phases, or all
AIPS 1: closure phases specified by
AIPS 1: the TRIANGLE adverb.
AIPS 1: See HELP for more info.
AIPS 1: PHSLIMIT 0 Plot only those triangles
AIPS 1: exceeding plus/minus PHSLIMIT
AIPS 1: BPARM *all 0 Control parameters
AIPS 1: 1 : 1 => x-axis is UTC
AIPS 1: or IAT (depending on
AIPS 1: time system in data.)
AIPS 1: : 2 => x-axis is GST
AIPS 1: 0 => 1
AIPS 1: 2 : not used
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 : Max no. plots/page.
AIPS 1: 9 > 0 -> plot models for
AIPS 1: baselines with no data
AIPS 1: 10: not used
AIPS 1: POLPLOT ' ' Option to display various
AIPS 1: combinations of polzns to
AIPS 1: plot: 'RL/RR', 'RL/LL',
AIPS 1: 'LR/RR', 'LR/LL', 'RR/LL'
AIPS 1: 'LL/RR'; other = don't use
AIPS 1: this option.
AIPS 1: SYMBOL 0 Symbol to use when plotting.
AIPS 1: 0 => Vertical line
AIPS 1: 1 - 24, standard types
AIPS 1: FACTOR 0 Scale symbol plotted
AIPS 1: LTYPE 3 Type of labeling: 1 border,
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
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.
AIPS 1: XYRATIO 0 X/Y ratio 0 -> fit TV or 1 PL
AIPS 1: DOPRINT 0 0 - no print, -3 brief
AIPS 1: OUTTEXT *all ' ' Name of output log file,
AIPS 1: No output to file if blank
>
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