[daip] CALIB
Amy Mioduszewski
amiodusz at aoc.nrao.edu
Tue May 1 11:48:05 EDT 2001
I may have found a bug in CALIB (although it could only
be a problem with the help file). I am running CALIB
on one source in a multisource data set. I am using
a clean component model but CALIB "scales" the model to
the flux in the SU table (which is 0). In the help
file it says that that is only done if IN2NAME='' or
IN2CLASS='', neither which are true. Below are my
inputs and messages.
Amy
Inputs:
AIPS 2: CALIB: Task to determine calibration for data.
AIPS 2: Adverbs Values Comments
AIPS 2: ----------------------------------------------------------------
AIPS 2: Input uv data.
AIPS 2: INNAME 'BR058B ' UV file name (name)
AIPS 2: INCLASS '18 CM ' UV file name (class)
AIPS 2: INSEQ 1 UV file name (seq. #)
AIPS 2: INDISK 2 UV file disk drive #
AIPS 2: Data selection (multisource):
AIPS 2: CALSOUR 'J0419+5722 ' Calibrator sources
AIPS 2: *rest ' '
AIPS 2: QUAL -1 Calibrator qualifier -1=>all
AIPS 2: CALCODE ' ' Calibrator code ' '=>all
AIPS 2: SELBAND -1 Bandwidth to select (kHz)
AIPS 2: SELFREQ -1 Frequency to select (MHz)
AIPS 2: FREQID -1 Freq. ID to select.
AIPS 2: TIMERANG *all 0 Time range to use.
AIPS 2: BCHAN 1 Lowest channel number 0=>all
AIPS 2: ECHAN 0 Highest channel number
AIPS 2: ANTENNAS *all 0 Antennas to select. 0=all
AIPS 2: DOFIT *all 0 Subset of ANTENNAS list for
AIPS 2: which solns are desired. 0
AIPS 2: => all in ANTENNAS, < 0 all
AIPS 2: but those in DOFIT
AIPS 2: ANTUSE *all 0 Mean gain is calculated
AIPS 2: (CPARM(2)>0) using only the
AIPS 2: listed antennas. See explain.
AIPS 2: SUBARRAY 0 Subarray, 0=>all
AIPS 2: UVRANGE 0 0 Range of uv distance for full
AIPS 2: weight
AIPS 2: WTUV 0 Weight outside UVRANGE 0=0.
AIPS 2:
AIPS 2: Cal. info for input:
AIPS 2: DOCALIB 2 If >0 calibrate data
AIPS 2: = 2 calibrate weights
AIPS 2: GAINUSE 8 CL table to apply.
AIPS 2: FLAGVER 1 Flag table version
AIPS 2: DOBAND -1 If >0 apply bandpass cal.
AIPS 2: Method used depends on value
AIPS 2: of DOBAND (see HELP file).
AIPS 2: BPVER -1 Bandpass table version
AIPS 2: SMOOTH *all 0 Smoothing function. See
AIPS 2: HELP SMOOTH for details.
AIPS 2:
AIPS 2: CLEAN map. See HELP.
AIPS 2: IN2NAME 'J0419+5722 ' Cleaned map name (name)
AIPS 2: IN2CLASS 'ICL001' Cleaned map name (class)
AIPS 2: IN2SEQ 11 Cleaned map name (seq. #)
AIPS 2: IN2DISK 2 Cleaned map disk unit #
AIPS 2: INVERS 1 CC file version #.
AIPS 2: NCOMP 220 *rest 0 # comps to use for model.
AIPS 2: 1 value per field
AIPS 2: FLUX 0 Lowest CC component used.
AIPS 2: NMAPS 0 No. Clean map files
AIPS 2: CMETHOD ' ' Modeling method:
AIPS 2: 'DFT','GRID',' '
AIPS 2: CMODEL ' ' Model type: 'COMP','IMAG'
AIPS 2: SMODEL *all 0 Source model, 1=flux,2=x,3=y
AIPS 2: See HELP SMODEL for models.
AIPS 2:
AIPS 2: Output uv data file.
AIPS 2: OUTNAME ' ' UV file name (name)
AIPS 2: OUTCLASS ' ' UV file name (class)
AIPS 2: OUTSEQ 0 UV file name (seq. #)
AIPS 2: OUTDISK 1 UV file disk drive #
AIPS 2:
AIPS 2: Solution control adverbs:
AIPS 2: REFANT 2 Reference antenna
AIPS 2: SOLINT 0 Solution interval (min)
AIPS 2: APARM *all 0 General parameters
AIPS 2: 1=min. no. antennas
AIPS 2: 2 > 0 => data divided
AIPS 2: 3 > 0 => avg. RR,LL
AIPS 2: 5 > 0 => avg. IFs.
AIPS 2: 6=print level, 1=good,
AIPS 2: 2 closure, 3 SNR
AIPS 2: 7=SNR cutoff (0=>5)
AIPS 2: 8=max. ant. # (no AN)
AIPS 2: 9 > 0 => pass failed soln
AIPS 2: Phase-amplitude Parameters:
AIPS 2: SOLTYPE 'L1 ' Soln type,' ','L1','GCON'
AIPS 2: SOLMODE 'P ' Soln. mode: 'A&P','P','P!A',
AIPS 2: 'GCON'
AIPS 2: SOLCON 0 Gain constraint factor.
AIPS 2: MINAMPER 0 Amplitude closure error
AIPS 2: regarded as excessive in %
AIPS 2: MINPHSER 0 Phase closure error regarded
AIPS 2: as excessive in degrees
AIPS 2: CPARM *all 0 Phase-amp. parameters
AIPS 2: 1 = Min el for gain
AIPS 2: normalization (deg)
AIPS 2: 2 >0 => normalize gain
AIPS 2: 3 avg. amp. closure err
AIPS 2: 4 avg. ph. closure err
AIPS 2: 5 >0 => scalar average
AIPS 2:
AIPS 2: SNVER 0 Output SN table, 0=>new table
AIPS 2: ANTWT *all 0 Ant. weights (0=>1.0)
AIPS 2: GAINERR *all 0 Std. Dev. of antenna gains.
AIPS 2: BADDISK *all 0 Disk no. not to use for
AIPS 2: scratch files.
Messages:
CALIB1: Task CALIB (release of 31DEC01) begins
CALIB1: CALIB USING BR058B . 18 CM . 1 DISK= 2 USID=1709
CALIB1: L1 Solution type
CALIB1: Selecting, editing and calibrating the data
CALIB1: Doing self-cal mode with CC model
CALIB1: Scaling Clean Comps to SU table flux (Factor= 0.00000E+00)
CALIB1: Divide data by model - first compute model by summing
CALIB1: UVPREP: Maximum U Baseline is 4.704E+07 lambda.
CALIB1: ALGSTB: All 129 Rows In AP (Max 267)
CALIB1: ALGSTB: Ipol gridded model subtraction, chans 1 through 8
CALIB1: ALGSTB: Pass 1; 118- 0 Cells, with 58050 Pts
CALIB1: Scaling Clean Comps to SU table flux (Factor= 0.00000E+00)
CALIB1: Divide data by model - first compute model by summing
CALIB1: UVPREP: Maximum U Baseline is 4.704E+07 lambda.
CALIB1: ALGSTB: All 129 Rows In AP (Max 267)
CALIB1: ALGSTB: Ipol gridded model subtraction, chans 9 through 16
CALIB1: ALGSTB: Pass 1; 118- 0 Cells, with 58050 Pts
CALIB1: Scaling Clean Comps to SU table flux (Factor= 0.00000E+00)
CALIB1: Divide data by model - first compute model by summing
CALIB1: UVPREP: Maximum U Baseline is 4.704E+07 lambda.
CALIB1: ALGSTB: All 130 Rows In AP (Max 267)
CALIB1: ALGSTB: Ipol gridded model subtraction, chans 17 through 24
CALIB1: ALGSTB: Pass 1; 119- 0 Cells, with 58050 Pts
CALIB1: Scaling Clean Comps to SU table flux (Factor= 0.00000E+00)
CALIB1: Divide data by model - first compute model by summing
CALIB1: UVPREP: Maximum U Baseline is 4.704E+07 lambda.
CALIB1: ALGSTB: All 130 Rows In AP (Max 267)
CALIB1: ALGSTB: Ipol gridded model subtraction, chans 25 through 32
CALIB1: ALGSTB: Pass 1; 119- 0 Cells, with 58050 Pts
CALIB1: Field 1 used 220 CCs
CALIB1: Determining solutions
CALIB1: Writing SN table 8
CALIB1: ERROR: NO VALID SOLUTIONS FOUND
CALIB1: Purports to die of UNNATURAL causes
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