[daip] Flagging with VPLOT
Andrew Biggs
abiggs at eso.org
Thu Sep 1 09:33:11 EDT 2011
Hi there. I'm trying to flag some GMRT data using VPLOT, but this is failing with the following error message:
localh> VPLOT1: Task VPLOT (release of 31DEC11) begins
localh> VPLOT1: Copied FG file from vol/cno/vers 2 3 5 to 2 3 6
localh> VPLOT1: Averaging from channel 1- 128
localh> VPLOT1: ZOPEN: LUN = 30 ALREADY OPENED IN FTAB
localh> VPLOT1: TABINI: I/O ERROR FROM ISTAB ON AN
localh> VPLOT1: UVGET: SUBARRAY 1 ERROR 3 OPENING AN TABLE
localh> VPLOT1: SCALVB: ERROR 3 INIT VIS FILE
localh> VPLOT1: Appears to have ended successfully
localh> VPLOT1: pc016987 31DEC11 TST: Cpu= 0.8 Real= 2 IO= 173
I only get this if I set APARM(1) = 1 - otherwise VPLOT works very well. I tried restarting AIPS, but this didn't help. I've attached my inputs below - sorry for the bad formatting.
By the way, it seems that the ability to flag data points per baseline/IF/pol based on the deviation of a single data point from a nearby average in sigma units is only offered by VPLOT. Is this correct? FLAGR offers similar functionality, but not this specific one which I personally would find very useful.
Thanks,
Andy
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 File owner number - ignored
AIPS 1: INNAME 'EGS_N3' 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 2 Input UV file disk unit #
AIPS 1: IN2NAME ' ' Input CC file name (name)
AIPS 1: IN2CLASS ' ' Input CC file name (class)
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: total 200000 CCs maximum
AIPS 1: FLUX 0 Lowest CC component used.
AIPS 1: NMAPS 0 # 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 '1400+621' 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 Lowest channel number 0=>1
AIPS 1: ECHAN 128 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 0 > 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 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 0 23 Time: start day,hr,min,sec
AIPS 1: 0 0 stop day,hr,min,sec.
AIPS 1: 0 23 30 0
AIPS 1: STOKES 'RRLL' Stokes' parameters
AIPS 1: ANTENNAS 27 *rest 0 Antennas to be plotted
AIPS 1: BASELINE 1 2 Baselines with ANTENNAS
AIPS 1: 3 4 See explanation.
AIPS 1: 5 *rest 0
AIPS 1: DOCALIB 1 > 0 calibrate data & weights
AIPS 1: > 99 do NOT calibrate weights
AIPS 1: GAINUSE 0 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: See explanation.
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: DOBAND 3 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 0.5 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 1 5 Control parameters
AIPS 1: *rest 0 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: 8 : > 0 mark scan boundaries
AIPS 1: BPARM 0 1 Control parameters
AIPS 1: *rest 0 1 : X-axis type code 0 -> 12
AIPS 1: 2 : Y-axis type code 0 -> 1
AIPS 1: <0 => both AMP & PHASE
AIPS 1: 1=> amplitude (Jy)
AIPS 1: 2=> phase (degrees)
AIPS 1: 3=> uv dist. (klambda)
AIPS 1: 4=> uv p.a. (deg N->E)
AIPS 1: 5=> time (IAT days)
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: 6=> u (klambda)
AIPS 1: 7=> v (klambda)
AIPS 1: 8=> w (klambda)
AIPS 1: 9=> Re(Vis) (Jy)
AIPS 1: 10=> Im(Vis) (Jy)
AIPS 1: 11=> time (GST)
AIPS 1: 12=> time (IAT hours)
AIPS 1: 13=> source number
AIPS 1: 14=> freqid
AIPS 1: 15=> integration time
AIPS 1: 16=> weight
AIPS 1: 17=> rms (SOLINT > 0)
AIPS 1: 18=> HA (hours)
AIPS 1: 19=> elevation (deg)
AIPS 1: 20=> parallactic angle
AIPS 1: 21=> azimuth (deg)
AIPS 1: 22=> log(amplitude)
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 10 Max number of plots per page.
AIPS 1: 0 => 3; If bparm(2)<0 =>
AIPS 1: Max number of pairs of plots.
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 0 Symbol to use when plotting.
AIPS 1: 0 => X (FACTOR >= 0)
AIPS 1: => none (FACTOR < 0)
AIPS 1: 1 - 23, standard types
AIPS 1: FACTOR 0 Scale symbol by FACTOR
AIPS 1: < 0 => connect with lines
AIPS 1: LTYPE 3 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.
AIPS 1: XYRATIO 0 X/Y ratio 0 -> fit TV or 1 PL
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