! Started logfile: J2042+7504_S_2006_02_23_yyk_uvs.log on Wed Jul  5 13:43:52 2006
obs J2042+7504_S_2006_02_23_yyk_uva.fits
! Reading UV FITS file: J2042+7504_S_2006_02_23_yyk_uva.fits
! AN table 1: 878 integrations on 45 of 45 possible baselines.
! Apparent sampling: 0.221665 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: J2042+7504
! 
! There are 4 IFs, and a total of 4 channels:
! 
!  IF  Channel    Frequency  Freq offset  Number of   Overall IF
!       origin    at origin  per channel   channels    bandwidth
!  ------------------------------------------------------------- (Hz)
!  01        1  2.23697e+09        8e+06          1        8e+06
!  02        2  2.26697e+09        8e+06          1        8e+06
!  03        3  2.35697e+09        8e+06          1        8e+06
!  04        4  2.37697e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 2427 lines of history.
! 
! Reading 35032 visibilities.
select I
! Polarization I is unavailable.
! Selecting polarization: RR,  channels: 1..4
! Reading IF 1 channels: 1..1
! Reading IF 2 channels: 2..2
! Reading IF 3 channels: 3..3
! Reading IF 4 channels: 4..4
![@muppet J2042+7504_S_2006_02_23_yyk]
integer clean_niter
clean_niter = 100
float clean_gain
clean_gain = 0.04
float dynam
dynam = 6.0
float amp_soltime1
amp_soltime1 = 10
float amp_soltime2
amp_soltime2 = 1
float phase_soltime1
phase_soltime1=10
float phase_soltime2
phase_soltime2=0.5
float phase_soltime
phase_soltime=phase_soltime1
float ampcor_selflim
ampcor_selflim=1.20
float thresh
thresh = 0.10
float win_mult
win_mult = 1.8
float time_av
time_av = 30
float old_peak
float new_peak
float flux_cutoff
mapsize field_size, field_cell
! Map grid = 512x512 pixels with 0.500x0.500 milli-arcsec cellsize.
uvav time_av, true
! Averaging into 30 second bins.
! Selecting polarization: RR,  channels: 1..4
! Reading IF 1 channels: 1..1
! Reading IF 2 channels: 2..2
! Reading IF 3 channels: 3..3
! Reading IF 4 channels: 4..4
phase_soltime=phase_soltime1
print "uvstat(rms)=",uvstat(rms),"Jy"
! uvstat(rms)= 0.107432 Jy 
uvw 2,-1
! Uniform weighting binwidth: 2 (pixels).
! Gridding weights will be scaled by errors raised to the power -1.
! Radial weighting is not currently selected.
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=8.645 mas, bmaj=19.08 mas, bpa=-17.06 degrees
! Estimated noise=1.02407 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal false,false,phase_soltime
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.0292096 Jy
! Component: 100  -  total flux cleaned = 0.0504074 Jy
! Total flux subtracted in 100 components = 0.0504074 Jy
! Clean residual min=-0.008830 max=0.009917 Jy/beam
! Clean residual mean=0.000226 rms=0.004654 Jy/beam
! Combined flux in latest and established models = 0.0504074 Jy
! Performing phase self-cal over 10 minute time intervals
! Adding 75 model components to the UV plane model.
! The established model now contains 75 components and 0.0504074 Jy
! 
! Correcting IF 1.
!  A total of 86 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 86 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 170 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 170 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.084140Jy  sigma=2.067413
! Fit after  self-cal, rms=0.084017Jy  sigma=2.057203
! Inverting map and beam 
! Estimated beam: bmin=8.645 mas, bmaj=19.08 mas, bpa=-17.06 degrees
! Estimated noise=1.02407 mJy/beam.
print "************** FINISHED UNIFORM WEIGHTING CLEAN **************"
! ************** FINISHED UNIFORM WEIGHTING CLEAN ************** 
! 
uvw 0,-2
! Uniform weighting is not currently selected.
! Gridding weights will be scaled by errors raised to the power -2.
! Radial weighting is not currently selected.
win_mult = win_mult * 1.6
clean_niter = clean_niter * 2
dynam = dynam - 0.5
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=9.999 mas, bmaj=20.18 mas, bpa=1.809 degrees
! Estimated noise=0.370164 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal false,false,phase_soltime
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 9.2945e-05 Jy
! Component: 100  -  total flux cleaned = 0.00464262 Jy
! Component: 150  -  total flux cleaned = 0.00958861 Jy
! Component: 200  -  total flux cleaned = 0.0129194 Jy
! Total flux subtracted in 200 components = 0.0129194 Jy
! Clean residual min=-0.002874 max=0.002961 Jy/beam
! Clean residual mean=0.000048 rms=0.001080 Jy/beam
! Combined flux in latest and established models = 0.0633267 Jy
! Performing phase self-cal over 10 minute time intervals
! Adding 41 model components to the UV plane model.
! The established model now contains 116 components and 0.0633267 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.077673Jy  sigma=1.860811
! Fit after  self-cal, rms=0.077738Jy  sigma=1.854053
! Inverting map 
print "************** FINISHED NATURAL WEIGHTING CLEAN **************"
! ************** FINISHED NATURAL WEIGHTING CLEAN ************** 
! 
restore
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 9.999 x 20.18 at 1.809 degrees (North through East)
! Clean map  min=-0.0025714  max=0.018582 Jy/beam
if(peak(flux) < thresh*2)
  selflims ampcor_selflim
  end if
! Selfcal amplitude corrections will be limited to 0.833333 -> 1.2.
! Selfcal phase corrections will not be limited.
gscale
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  Amplitude normalization factor in sub-array 1: 1
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    HN        1.00*    KP        1.00*    
!   LA        1.00*    MK        1.00*    NL        1.00*    OV        1.00*    
!   PT        1.00*    SC        1.00*    
! 
! 
! Correcting IF 2.
!  Amplitude normalization factor in sub-array 1: 1
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    HN        1.00*    KP        1.00*    
!   LA        1.00*    MK        1.00*    NL        1.00*    OV        1.00*    
!   PT        1.00*    SC        1.00*    
! 
! 
! Correcting IF 3.
!  Amplitude normalization factor in sub-array 1: 1
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.00*    FD        0.00*    HN        0.00*    KP        0.00*    
!   LA        0.00*    MK        0.00*    NL        0.00*    OV        0.00*    
!   PT        0.00*    SC        0.00*    
! 
! 
! Correcting IF 4.
!  Amplitude normalization factor in sub-array 1: 1
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.00*    FD        0.00*    HN        0.00*    KP        0.00*    
!   LA        0.00*    MK        0.00*    NL        0.00*    OV        0.00*    
!   PT        0.00*    SC        0.00*    
! 
! 
! Fit before self-cal, rms=0.077738Jy  sigma=1.854053
! Fit after  self-cal, rms=0.077738Jy  sigma=1.854053
selfcal false, false, phase_soltime
! Performing phase self-cal over 10 minute time intervals
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.077738Jy  sigma=1.854053
! Fit after  self-cal, rms=0.077745Jy  sigma=1.853905
dynam = dynam - 0.5
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=9.999 mas, bmaj=20.18 mas, bpa=1.809 degrees
! Estimated noise=0.370164 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal false,false,phase_soltime
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.00305484 Jy
! Component: 100  -  total flux cleaned = 0.00638657 Jy
! Component: 150  -  total flux cleaned = 0.00944063 Jy
! Component: 200  -  total flux cleaned = 0.0124772 Jy
! Total flux subtracted in 200 components = 0.0124772 Jy
! Clean residual min=-0.001905 max=0.001893 Jy/beam
! Clean residual mean=0.000041 rms=0.000831 Jy/beam
! Combined flux in latest and established models = 0.0758039 Jy
! Performing phase self-cal over 10 minute time intervals
! Adding 88 model components to the UV plane model.
! The established model now contains 199 components and 0.0758039 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.072609Jy  sigma=1.721464
! Fit after  self-cal, rms=0.072461Jy  sigma=1.718886
! Inverting map 
print "************** FINISHED AMPLITUDE GSCALE SELF-CAL **************"
! ************** FINISHED AMPLITUDE GSCALE SELF-CAL ************** 
! 
phase_soltime=phase_soltime2
selfcal false, false, phase_soltime
! Performing phase self-cal over 0.5 minute time intervals
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.072461Jy  sigma=1.718886
! Fit after  self-cal, rms=0.070352Jy  sigma=1.613823
dynam = dynam - 0.5
flux_cutoff = imstat(rms) * dynam
! Inverting map 
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal false,false,phase_soltime
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.00355651 Jy
! Component: 100  -  total flux cleaned = 0.00665934 Jy
! Component: 150  -  total flux cleaned = 0.0102593 Jy
! Component: 200  -  total flux cleaned = 0.0140908 Jy
! Total flux subtracted in 200 components = 0.0140908 Jy
! Clean residual min=-0.002606 max=0.002729 Jy/beam
! Clean residual mean=0.000033 rms=0.000835 Jy/beam
! Combined flux in latest and established models = 0.0898947 Jy
! Performing phase self-cal over 0.5 minute time intervals
! Adding 36 model components to the UV plane model.
! The established model now contains 235 components and 0.0898947 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.063814Jy  sigma=1.474195
! Fit after  self-cal, rms=0.063894Jy  sigma=1.460997
! Inverting map 
print "*** FINISHED NATURAL WEIGHTING CLEAN with shorter phase_soltime ***"
! *** FINISHED NATURAL WEIGHTING CLEAN with shorter phase_soltime *** 
! 
dynam = dynam - 0.25
restore
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 9.999 x 20.18 at 1.809 degrees (North through East)
! Clean map  min=-0.002339  max=0.019581 Jy/beam
if(peak(flux) > thresh)
  selfcal true, true, amp_soltime1
  selfcal false, false, phase_soltime
  flux_cutoff = imstat(rms) * dynam
  repeat
    if (peak(flux) > flux_cutoff) peakwin win_mult
    clean clean_niter,clean_gain
    flux_cutoff = imstat(rms) * dynam
    selfcal false,false,phase_soltime
    new_peak = peak(flux)
    until(new_peak<=flux_cutoff)
  selfcal true, true, amp_soltime2
  selfcal false, false, phase_soltime
  flux_cutoff = imstat(rms) * dynam
  repeat
    if (peak(flux) > flux_cutoff) peakwin win_mult
    clean clean_niter,clean_gain
    flux_cutoff = imstat(rms) * dynam
    selfcal false,false,phase_soltime
    new_peak = peak(flux)
    until(new_peak<=flux_cutoff)
  print "************** FINISHED AMPLITUDE SELF-CAL **************"
  end if
uvtaper 0.3,taper_size
! Gaussian taper: value 0.3 at UV radius = 20 mega-wavelengths.
win_mult = win_mult * 1.4
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=10.34 mas, bmaj=22.28 mas, bpa=7.451 degrees
! Estimated noise=0.372845 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal false,false,phase_soltime
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.00332566 Jy
! Component: 100  -  total flux cleaned = 0.00604495 Jy
! Component: 150  -  total flux cleaned = 0.00861402 Jy
! Component: 200  -  total flux cleaned = 0.011201 Jy
! Total flux subtracted in 200 components = 0.011201 Jy
! Clean residual min=-0.001543 max=0.001595 Jy/beam
! Clean residual mean=0.000036 rms=0.000725 Jy/beam
! Combined flux in latest and established models = 0.101096 Jy
! Performing phase self-cal over 0.5 minute time intervals
! Adding 96 model components to the UV plane model.
! The established model now contains 331 components and 0.101096 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.059516Jy  sigma=1.350672
! Fit after  self-cal, rms=0.058924Jy  sigma=1.346279
! Inverting map 
uvtaper 0
! No UV-taper is currently set.
win_mult = win_mult / 1.4
print "************** FINISHED TAPERING SELF-CAL CLEAN **************"
! ************** FINISHED TAPERING SELF-CAL CLEAN ************** 
! 
print "************** CLEARING MODEL AND STARTING OVER **********"
! ************** CLEARING MODEL AND STARTING OVER ********** 
clrmod true,true,true
! clrmod: Cleared the established, tentative and continuum models.
uvw 2,-1
! Uniform weighting binwidth: 2 (pixels).
! Gridding weights will be scaled by errors raised to the power -1.
! Radial weighting is not currently selected.
clean clean_niter, clean_gain
! Inverting map and beam 
! Estimated beam: bmin=8.645 mas, bmaj=19.08 mas, bpa=-17.06 degrees
! Estimated noise=1.02407 mJy/beam.
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.0306935 Jy
! Component: 100  -  total flux cleaned = 0.0522693 Jy
! Component: 150  -  total flux cleaned = 0.0718421 Jy
! Component: 200  -  total flux cleaned = 0.0854425 Jy
! Total flux subtracted in 200 components = 0.0854425 Jy
! Clean residual min=-0.010148 max=0.010756 Jy/beam
! Clean residual mean=0.000089 rms=0.003760 Jy/beam
! Combined flux in latest and established models = 0.0854425 Jy
uvw 0,-2
! Uniform weighting is not currently selected.
! Gridding weights will be scaled by errors raised to the power -2.
! Radial weighting is not currently selected.
flux_cutoff = imstat(rms) * dynam
! Adding 80 model components to the UV plane model.
! The established model now contains 80 components and 0.0854425 Jy
! Inverting map and beam 
! Estimated beam: bmin=9.999 mas, bmaj=20.18 mas, bpa=1.809 degrees
! Estimated noise=0.370164 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  keep
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.00268358 Jy
! Component: 100  -  total flux cleaned = 0.00475385 Jy
! Component: 150  -  total flux cleaned = 0.00755841 Jy
! Component: 200  -  total flux cleaned = 0.0108439 Jy
! Total flux subtracted in 200 components = 0.0108439 Jy
! Clean residual min=-0.002361 max=0.002417 Jy/beam
! Clean residual mean=0.000024 rms=0.000908 Jy/beam
! Combined flux in latest and established models = 0.0962864 Jy
! Adding 63 model components to the UV plane model.
! The established model now contains 142 components and 0.0962863 Jy
! Inverting map 
uvtaper 0.3,taper_size
! Gaussian taper: value 0.3 at UV radius = 20 mega-wavelengths.
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=10.34 mas, bmaj=22.28 mas, bpa=7.451 degrees
! Estimated noise=0.372845 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  keep
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.00222035 Jy
! Component: 100  -  total flux cleaned = 0.00557837 Jy
! Component: 150  -  total flux cleaned = 0.00930239 Jy
! Component: 200  -  total flux cleaned = 0.0132157 Jy
! Total flux subtracted in 200 components = 0.0132157 Jy
! Clean residual min=-0.002239 max=0.002294 Jy/beam
! Clean residual mean=0.000017 rms=0.000812 Jy/beam
! Combined flux in latest and established models = 0.109502 Jy
! Adding 47 model components to the UV plane model.
! The established model now contains 189 components and 0.109502 Jy
! Inverting map 
uvtaper 0
! No UV-taper is currently set.
clean
! Inverting map and beam 
! Estimated beam: bmin=9.999 mas, bmaj=20.18 mas, bpa=1.809 degrees
! Estimated noise=0.370164 mJy/beam.
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.00226174 Jy
! Component: 100  -  total flux cleaned = 0.00443424 Jy
! Component: 150  -  total flux cleaned = 0.00657867 Jy
! Component: 200  -  total flux cleaned = 0.00869339 Jy
! Total flux subtracted in 200 components = 0.00869339 Jy
! Clean residual min=-0.001223 max=0.001268 Jy/beam
! Clean residual mean=0.000013 rms=0.000531 Jy/beam
! Combined flux in latest and established models = 0.118195 Jy
selfcal false, false, phase_soltime
! Performing phase self-cal over 0.5 minute time intervals
! Adding 69 model components to the UV plane model.
! The established model now contains 258 components and 0.118195 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.051769Jy  sigma=1.201551
! Fit after  self-cal, rms=0.050360Jy  sigma=1.187664
wmodel J2042+7504_S_2006_02_23_yyk\_map.mod
! Writing 258 model components to file: J2042+7504_S_2006_02_23_yyk_map.mod
wobs J2042+7504_S_2006_02_23_yyk\_uvs.fits
! Writing UV FITS file: J2042+7504_S_2006_02_23_yyk_uvs.fits
wwins J2042+7504_S_2006_02_23_yyk\_map.win
! wwins: No CLEAN windows to write.
! Error occured in command: wwins
![Exited script file: muppet]
! 
wmap "J2042+7504_S_2006_02_23_yyk\_map.fits"
! Inverting map 
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 9.999 x 20.18 at 1.809 degrees (North through East)
! Clean map  min=-0.0041972  max=0.023722 Jy/beam
! Writing clean map to FITS file: J2042+7504_S_2006_02_23_yyk_map.fits
float peak_flux
peak_flux = peak(flux,max)
print "The peak flux is",peak_flux
! The peak flux is 0.0237219 
invert
! Inverting map 
float image_rms
image_rms = imstat(rms)
print "The final image rms is",image_rms
! The final image rms is 0.000514787 
device "J2042+7504_S_2006_02_23_yyk\_map.eps/VPS"
! Attempting to open device: 'J2042+7504_S_2006_02_23_yyk_map.eps/VPS'
loglevs 100*3*image_rms/peak_flux
! The new contour levels are:
!  -6.51028 6.51028 13.0206 26.0411 52.0822
print "clev=",int(3*image_rms*10000)/10000
! clev= 0.0015 
print "peak=",int(peak_flux*1000)/1000
! peak= 0.023 
mapcolor none
! Mapplot colormap: none, contrast: 1 brightness: 0.5.
mapplot cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 9.999 x 20.18 at 1.809 degrees (North through East)
! Clean map  min=-0.0041972  max=0.023722 Jy/beam
mapcolor color, 0.9
! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5.
device "J2042+7504_S_2006_02_23_yyk\_map.gif/gif"
! Attempting to open device: 'J2042+7504_S_2006_02_23_yyk_map.gif/gif'
mapplot cln
quit
! Quitting program
! Log file J2042+7504_S_2006_02_23_yyk_uvs.log closed on Wed Jul  5 13:44:30 2006