[daip] cpass
Lynn D. Matthews
lmatthew at cfa.harvard.edu
Tue Dec 6 15:06:54 EST 2005
As I mentioned in Socorro, I am no longer able to get the task CPASS to
work.
I have now tested it on two different data sets, one VLA (using a point
model), and one VLBA (using autocorrelation data). In both cases I get
similar error messages (see example below). The task then claims to end
successfully, but no BP table is written. I have tweaked various inputs,
but the behavior is always the same. Below I have appended my inputs and
message file from the VLBA test.
I note that the following changes to the task have appeared since I
last ran it successfully:
addition of CMETHOD
addition of BLVER
addition of DOBAND
OUTVERS replaced BPVER
Lynn
AIPS 1: CPASS Task to generate a polynomial 'Bandpass' (BP) table.
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: USERID 0 User number
AIPS 1: INNAME 'BG118J' Input UV file name (name)
AIPS 1: INCLASS 'FITLD' Input UV file name (class)
AIPS 1: INSEQ 2 Input UV file name (seq. #)
AIPS 1: INDISK 2 Input UV file disk unit #
AIPS 1:
AIPS 1: Data Selection
AIPS 1: CALSOUR '4C39.25' Bandpass calibrator sources.
AIPS 1: '0528+134' *rest ' '
AIPS 1: QUAL -1 Calibrator qualifier -1=>all
AIPS 1: CALCODE ' ' Calibrator code ' '=>all
AIPS 1: UVRANG 0 0 UV range to select
AIPS 1: TIMERANG *all 0 Time range to select
AIPS 1: STOKES ' ' Stokes type to select.
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: BIF 1 Lowest IF number 0=>all
AIPS 1: EIF 0 Highest IF number 0=>all
AIPS 1: BCHAN 1 Lowest channel number 0=>all
AIPS 1: ECHAN 0 Highest channel number 0=>all
AIPS 1: SUBARRAY 0 Subarray, 0=>all
AIPS 1: ANTENNAS *all 0 Antennas to select
AIPS 1:
AIPS 1: CLEAN map (optional)
AIPS 1: IN2NAME ' ' Cleaned map name (name)
AIPS 1: IN2CLASS ' ' Cleaned map name (class)
AIPS 1: IN2SEQ 0 Cleaned map name (seq. #)
AIPS 1: IN2DISK 0 Cleaned map disk unit #
AIPS 1: INVERS 0 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 No. Clean map files
AIPS 1: CMETHOD ' ' Modeling method:
AIPS 1: 'DFT','GRID',' '
AIPS 1: SMODEL *all 0 Source model, 1=flux,2=x,3=y
AIPS 1: See HELP SMODEL for details.
AIPS 1:
AIPS 1: Control options
AIPS 1: DOCALIB 2 If >0 calibrate data
AIPS 1: = 2 calibrate weights
AIPS 1: GAINUSE 8 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 2 Flag table version
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 1 Bandpass table version
AIPS 1: SOLINT 0 Solution interval (mins)
AIPS 1: -1 => do whole time range
AIPS 1: REFANT 9 Reference antenna
AIPS 1: OUTVERS 1 BP table version to write
AIPS 1: SMOOTH 3 8 Smoothing function. See
AIPS 1: 0 HELP SMOOTH for details.
AIPS 1: ANTWT *all 0 Ant. wts (0 => 1.)
AIPS 1: BPASSPRM 1 1 Control information:
AIPS 1: 1 0 1: if > 0 use only the
AIPS 1: 1 0 autocorrelation data.
AIPS 1: 0 0 2: print level.
AIPS 1: 0 1 3: If > 0 do not divide data
AIPS 1: 0 by source model
AIPS 1: 4: If > 0 store phases only
AIPS 1: in the BP table.
AIPS 1: 5: If = 0 divide by 'channel
AIPS 1: 0' before determining BP.
AIPS 1: If > 1 switch off the
AIPS 1: channel 0 divide option.
AIPS 1: 6: min. amp. closure err
AIPS 1: 7: min. ph. closure err
AIPS 1: 8: > 0 => scalar average
AIPS 1: 10: > 1 => normalize ampl.
AIPS 1: portion of bandpass by
AIPS 1: area under BP function.
AIPS 1: Useful for VLBI.
AIPS 1: 11: > 1, mode to allow
AIPS 1: calibration and divide
AIPS 1: by channel 0. Useful for
AIPS 1: VLBI. Do not use if you
AIPS 1: don't understand. See HELP
AIPS 1: CPARM 30 100 Fit parameters:
AIPS 1: 0.01 600 1: No. of terms.
AIPS 1: 2 0 2: Max. no. iterations.
AIPS 1: 0 1 3: Convergence tolerance.
AIPS 1: 0 0 4: Pre-average interval (sec)
AIPS 1: Default: Auto - 5 min.
AIPS 1: Cross - 15 min.
AIPS 1: 5: Fit type (1=Re/Im; 2=A/P)
AIPS 1: 6: BP table for initial val.
AIPS 1: 7: Fit phase only (1=> with
AIPS 1: ampl.; 2=> without)
AIPS 1: 8: >0 => Autoscale
AIPS 1: 9: >0 suppress data weighting
AIPS 1: ICHANSEL *all 0 Array of start and stop chan
AIPS 1: numbers, plus a channel
AIPS 1: increment and IF to be used
AIPS 1: to select channels to sum to
AIPS 1: find a 'channel 0'. If all
AIPS 1: 0, range set to inner 75% of
AIPS 1: observing band.
AIPS 1:
AIPS 1: 'Channel 0' uv-data
AIPS 1: IN3NAME ' ' Channel 0 uv name (name)
AIPS 1: IN3CLASS ' ' Channel 0 uv name (class)
AIPS 1: IN3SEQ 0 Channel 0 uv name (seq. #)
AIPS 1: IN3DISK 0 Channel 0 uv disk unit #
AIPS 1: BADDISK *all 0 Disks to avoid for scratch
task time messages for user 2086
****** 06-DEC-2005 ******
CPASS1 14:28:04 Task CPASS (release of 31DEC05) begins
CPASS1 14:28:04 You are using a non-standard program
CPASS1 14:28:04 Bandpass response function generator
CPASS1 14:28:04 Resultant bandpass table will be normalized
CPASS1 14:28:04 Array name in AN table is VLBA
CPASS1 14:28:04 Will assume this is data from the VLBA correlator
CPASS1 14:28:04 and that it is all fringe-rotated to Earth Centre
CPASS1 14:28:04 Will remove effects of that fringe-rotation
CPASS1 14:28:04 to provide consistent bandpass calibration
CPASS1 14:28:04 If incorrect, abort and change array name keyword
CPASS1 14:28:04 Selecting, editing and calibrating the data
CPASS1 14:28:29 Determining solutions
CPASS1 14:28:29 Solving polarization RR, IF channel 1
CPASS1 14:28:29 NIT NF F GTG
CPASS1 14:28:29 0 1 1.966186297813096E+02 4.65558876E+05
CPASS1 14:28:29 1 2 2.914236365347287E+01 3.57205623E+04
CPASS1 14:28:29 2 3 1.632104430549224E+01 2.31368992E+04
CPASS1 14:28:29 3 4 9.533616934817022E+00 1.25405162E+04
CPASS1 14:28:30 4 5 3.420834828360132E+00 6.19242647E+03
CPASS1 14:28:30 5 7 1.984127962707761E+00 3.16765425E+03
CPASS1 14:28:30 6 9 1.173065015517944E+00 1.40136895E+03
CPASS1 14:28:30 7 12 9.106497011294347E-01 1.03211918E+03
CPASS1 14:28:30 8 15 7.391095128581701E-01 7.50938162E+02
CPASS1 14:28:30 9 20 7.146858997625711E-01 7.77008994E+02
CPASS1 14:28:31 10 24 6.159904826712157E-01 5.47064127E+02
CPASS1 14:28:31 11 28 5.623877705861805E-01 4.70081924E+02
CPASS1 14:28:31 12 32 5.187093803846512E-01 4.04746665E+02
CPASS1 14:28:31 13 37 4.918079740882734E-01 3.47885718E+02
CPASS1 14:28:32 14 44 4.714227149416231E-01 3.40772803E+02
CPASS1 14:28:32 15 50 4.435473384895173E-01 2.82382337E+02
CPASS1 14:28:33 16 55 4.152813617388995E-01 2.20918796E+02
CPASS1 14:28:33 17 60 3.951932704993030E-01 1.75936592E+02
CPASS1 14:28:34 18 67 3.921459758317739E-01 1.93278501E+02
CPASS1 14:28:34 19 74 3.879671400909105E-01 1.95791265E+02
CPASS1 14:28:35 20 80 3.746575093761824E-01 2.10645298E+02
CPASS1 14:28:35 21 87 3.627081917657049E-01 2.30503465E+02
CPASS1 14:28:35 22 94 3.509078520169990E-01 2.14942401E+02
CPASS1 14:28:36 23 99 3.295425050668097E-01 2.03841293E+02
CPASS1 14:28:37 24 104 3.065275984952896E-01 1.92595395E+02
CPASS1 14:28:37 BASOLV: SOLVER RETURNS ERROR 2
CPASS1 14:28:37 Solving polarization RR, IF channel 2
CPASS1 14:28:37 NIT NF F GTG
CPASS1 14:28:37 0 1 1.473561164898091E+02 2.93132869E+05
CPASS1 14:28:37 1 2 2.591855549239800E+01 5.01481496E+04
CPASS1 14:28:37 2 3 1.209259443340284E+01 1.85658214E+04
CPASS1 14:28:38 3 4 6.515922766922365E+00 6.84519618E+03
CPASS1 14:28:38 4 5 2.636990580731727E+00 2.05697380E+03
CPASS1 14:28:38 5 9 1.794975567694657E+00 1.93377665E+03
CPASS1 14:28:38 6 12 1.421909872451602E+00 1.75089555E+03
CPASS1 14:28:38 7 15 1.078883570136137E+00 9.91215933E+02
CPASS1 14:28:39 8 18 8.843828957629284E-01 7.08110027E+02
CPASS1 14:28:39 9 23 8.210895601287693E-01 6.66458961E+02
CPASS1 14:28:39 10 27 7.346238064896373E-01 5.12104541E+02
CPASS1 14:28:39 11 32 6.933828194679816E-01 4.87987648E+02
CPASS1 14:28:40 12 38 6.807122286301469E-01 5.02157048E+02
CPASS1 14:28:40 13 43 6.635626774855042E-01 5.54286115E+02
CPASS1 14:28:40 14 48 6.386005027126890E-01 5.40151216E+02
CPASS1 14:28:40 15 53 5.995709645709713E-01 5.48275253E+02
CPASS1 14:28:41 16 59 5.853862337768030E-01 6.40756063E+02
CPASS1 14:28:41 17 64 5.550085655195888E-01 6.29616132E+02
CPASS1 14:28:41 18 71 5.477446141101895E-01 6.95004361E+02
CPASS1 14:28:42 19 75 4.691243757894757E-01 5.72523363E+02
CPASS1 14:28:42 20 80 4.464451635292782E-01 5.85322679E+02
CPASS1 14:28:42 21 86 4.020218128072478E-01 4.85109819E+02
CPASS1 14:28:43 22 90 3.458496020351839E-01 3.80705106E+02
CPASS1 14:28:43 23 96 3.354183834480234E-01 3.62508434E+02
CPASS1 14:28:44 24 102 3.245850348463310E-01 3.31597480E+02
CPASS1 14:28:44 BASOLV: SOLVER RETURNS ERROR 2
CPASS1 14:28:44 Appears to have ended successfully
CPASS1 14:28:44 rest 31DEC05 TST: Cpu= 32.3 Real= 40
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