! Started logfile: J0618+7821_S_2006_02_23_yyk_uvs.log on Wed Jul  5 11:32:10 2006
obs J0618+7821_S_2006_02_23_yyk_uva.fits
! Reading UV FITS file: J0618+7821_S_2006_02_23_yyk_uva.fits
! AN table 1: 845 integrations on 45 of 45 possible baselines.
! Apparent sampling: 0.185641 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: J0618+7821
! 
! 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 2424 lines of history.
! 
! Reading 28236 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 J0618+7821_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)= 0.0807296 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=11.85 mas, bmaj=34.94 mas, bpa=37.48 degrees
! Estimated noise=0.897728 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 = 0.0172625 Jy
! Component: 100  -  total flux cleaned = 0.0275769 Jy
! Total flux subtracted in 100 components = 0.0275769 Jy
! Clean residual min=-0.005196 max=0.005253 Jy/beam
! Clean residual mean=-0.000026 rms=0.002296 Jy/beam
! Combined flux in latest and established models = 0.0275769 Jy
! Performing phase self-cal over 10 minute time intervals
! Adding 37 model components to the UV plane model.
! The established model now contains 37 components and 0.0275769 Jy
! 
! Correcting IF 1.
!  A total of 80 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 80 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 80 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 80 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.070394Jy  sigma=1.469935
! Fit after  self-cal, rms=0.070361Jy  sigma=1.467729
! Inverting map and beam 
! Estimated beam: bmin=11.85 mas, bmaj=34.94 mas, bpa=37.48 degrees
! Estimated noise=0.897728 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=14.14 mas, bmaj=34.85 mas, bpa=44.11 degrees
! Estimated noise=0.356646 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 = -0.00273492 Jy
! Component: 100  -  total flux cleaned = -0.00302154 Jy
! Component: 150  -  total flux cleaned = -0.00361567 Jy
! Component: 200  -  total flux cleaned = -0.00375571 Jy
! Total flux subtracted in 200 components = -0.00375571 Jy
! Clean residual min=-0.002175 max=0.002243 Jy/beam
! Clean residual mean=-0.000087 rms=0.000908 Jy/beam
! Combined flux in latest and established models = 0.0238212 Jy
! Performing phase self-cal over 10 minute time intervals
! Adding 75 model components to the UV plane model.
! The established model now contains 112 components and 0.0238212 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.068950Jy  sigma=1.363972
! Fit after  self-cal, rms=0.068871Jy  sigma=1.358061
! Inverting map 
print "************** FINISHED NATURAL WEIGHTING CLEAN **************"
! ************** FINISHED NATURAL WEIGHTING CLEAN ************** 
! 
restore
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 14.14 x 34.85 at 44.11 degrees (North through East)
! Clean map  min=-0.0047405  max=0.015519 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        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 4.
!  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*    
! 
! 
! Fit before self-cal, rms=0.068871Jy  sigma=1.358061
! Fit after  self-cal, rms=0.068871Jy  sigma=1.358061
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=0.068871Jy  sigma=1.358061
! Fit after  self-cal, rms=0.068864Jy  sigma=1.358414
dynam = dynam - 0.5
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=14.14 mas, bmaj=34.85 mas, bpa=44.11 degrees
! Estimated noise=0.356646 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 = -0.000781472 Jy
! Component: 100  -  total flux cleaned = -0.00151583 Jy
! Component: 150  -  total flux cleaned = -0.00255003 Jy
! Component: 200  -  total flux cleaned = -0.00398619 Jy
! Total flux subtracted in 200 components = -0.00398619 Jy
! Clean residual min=-0.001376 max=0.001299 Jy/beam
! Clean residual mean=-0.000033 rms=0.000541 Jy/beam
! Combined flux in latest and established models = 0.019835 Jy
! Performing phase self-cal over 10 minute time intervals
! Adding 61 model components to the UV plane model.
! The established model now contains 173 components and 0.019835 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.067512Jy  sigma=1.311122
! Fit after  self-cal, rms=0.067483Jy  sigma=1.310129
! 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=0.067483Jy  sigma=1.310129
! Fit after  self-cal, rms=0.064008Jy  sigma=1.161208
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 = 0.00175322 Jy
! Component: 100  -  total flux cleaned = 0.00292854 Jy
! Component: 150  -  total flux cleaned = 0.00280193 Jy
! Component: 200  -  total flux cleaned = 0.00234604 Jy
! Total flux subtracted in 200 components = 0.00234604 Jy
! Clean residual min=-0.000820 max=0.000797 Jy/beam
! Clean residual mean=-0.000001 rms=0.000396 Jy/beam
! Combined flux in latest and established models = 0.022181 Jy
! Performing phase self-cal over 0.5 minute time intervals
! Adding 93 model components to the UV plane model.
! The established model now contains 264 components and 0.022181 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.061908Jy  sigma=1.113723
! Fit after  self-cal, rms=0.061846Jy  sigma=1.109344
! 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: 14.14 x 34.85 at 44.11 degrees (North through East)
! Clean map  min=-0.0052735  max=0.017181 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=15.01 mas, bmaj=34.48 mas, bpa=45.22 degrees
! Estimated noise=0.358015 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 = 0.00108013 Jy
! Component: 100  -  total flux cleaned = 0.00164298 Jy
! Component: 150  -  total flux cleaned = 0.00216932 Jy
! Component: 200  -  total flux cleaned = 0.00276328 Jy
! Total flux subtracted in 200 components = 0.00276328 Jy
! Clean residual min=-0.000596 max=0.000593 Jy/beam
! Clean residual mean=0.000011 rms=0.000329 Jy/beam
! Combined flux in latest and established models = 0.0249443 Jy
! Performing phase self-cal over 0.5 minute time intervals
! Adding 88 model components to the UV plane model.
! The established model now contains 336 components and 0.0249443 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.060559Jy  sigma=1.084082
! Fit after  self-cal, rms=0.060482Jy  sigma=1.083305
! 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=11.85 mas, bmaj=34.94 mas, bpa=37.48 degrees
! Estimated noise=0.897728 mJy/beam.
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.0202951 Jy
! Component: 100  -  total flux cleaned = 0.0335606 Jy
! Component: 150  -  total flux cleaned = 0.0423238 Jy
! Component: 200  -  total flux cleaned = 0.0449432 Jy
! Total flux subtracted in 200 components = 0.0449432 Jy
! Clean residual min=-0.003653 max=0.003677 Jy/beam
! Clean residual mean=0.000005 rms=0.001675 Jy/beam
! Combined flux in latest and established models = 0.0449431 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 37 model components to the UV plane model.
! The established model now contains 37 components and 0.0449431 Jy
! Inverting map and beam 
! Estimated beam: bmin=14.14 mas, bmaj=34.85 mas, bpa=44.11 degrees
! Estimated noise=0.356646 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 = -0.00323449 Jy
! Component: 100  -  total flux cleaned = -0.00552431 Jy
! Component: 150  -  total flux cleaned = -0.0067409 Jy
! Component: 200  -  total flux cleaned = -0.00730303 Jy
! Total flux subtracted in 200 components = -0.00730303 Jy
! Clean residual min=-0.001041 max=0.001030 Jy/beam
! Clean residual mean=-0.000008 rms=0.000402 Jy/beam
! Combined flux in latest and established models = 0.0376401 Jy
! Adding 97 model components to the UV plane model.
! The established model now contains 134 components and 0.0376401 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=15.01 mas, bmaj=34.48 mas, bpa=45.22 degrees
! Estimated noise=0.358015 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 = 0.00115296 Jy
! Component: 100  -  total flux cleaned = 0.00185183 Jy
! Component: 150  -  total flux cleaned = 0.00250067 Jy
! Component: 200  -  total flux cleaned = 0.0028093 Jy
! Total flux subtracted in 200 components = 0.0028093 Jy
! Clean residual min=-0.000527 max=0.000529 Jy/beam
! Clean residual mean=0.000016 rms=0.000289 Jy/beam
! Combined flux in latest and established models = 0.0404494 Jy
! Adding 98 model components to the UV plane model.
! The established model now contains 231 components and 0.0404494 Jy
! Inverting map 
uvtaper 0
! No UV-taper is currently set.
clean
! Inverting map and beam 
! Estimated beam: bmin=14.14 mas, bmaj=34.85 mas, bpa=44.11 degrees
! Estimated noise=0.356646 mJy/beam.
! clean: niter=200  gain=0.04  cutoff=0
! Component: 050  -  total flux cleaned = 0.000814469 Jy
! Component: 100  -  total flux cleaned = 0.00147281 Jy
! Component: 150  -  total flux cleaned = 0.00162371 Jy
! Component: 200  -  total flux cleaned = 0.00142287 Jy
! Total flux subtracted in 200 components = 0.00142287 Jy
! Clean residual min=-0.000515 max=0.000519 Jy/beam
! Clean residual mean=0.000007 rms=0.000249 Jy/beam
! Combined flux in latest and established models = 0.0418723 Jy
selfcal false, false, phase_soltime
! Performing phase self-cal over 0.5 minute time intervals
! Adding 78 model components to the UV plane model.
! The established model now contains 306 components and 0.0418723 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.057572Jy  sigma=1.047295
! Fit after  self-cal, rms=0.057190Jy  sigma=1.045638
wmodel J0618+7821_S_2006_02_23_yyk\_map.mod
! Writing 306 model components to file: J0618+7821_S_2006_02_23_yyk_map.mod
wobs J0618+7821_S_2006_02_23_yyk\_uvs.fits
! Writing UV FITS file: J0618+7821_S_2006_02_23_yyk_uvs.fits
wwins J0618+7821_S_2006_02_23_yyk\_map.win
! wwins: No CLEAN windows to write.
! Error occured in command: wwins
![Exited script file: muppet]
! 
wmap "J0618+7821_S_2006_02_23_yyk\_map.fits"
! Inverting map 
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 14.14 x 34.85 at 44.11 degrees (North through East)
! Clean map  min=-0.0035577  max=0.024379 Jy/beam
! Writing clean map to FITS file: J0618+7821_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 0.0243788 
invert
! Inverting map 
float image_rms
image_rms = imstat(rms)
print "The final image rms is",image_rms
! The final image rms is 0.000262715 
device "J0618+7821_S_2006_02_23_yyk\_map.eps/VPS"
! Attempting to open device: 'J0618+7821_S_2006_02_23_yyk_map.eps/VPS'
loglevs 100*3*image_rms/peak_flux
! The new contour levels are:
!  -3.2329 3.2329 6.46581 12.9316 25.8632 51.7264
print "clev=",int(3*image_rms*10000)/10000
! clev= 0.0007 
print "peak=",int(peak_flux*1000)/1000
! peak= 0.024 
mapcolor none
! Mapplot colormap: none, contrast: 1 brightness: 0.5.
mapplot cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 14.14 x 34.85 at 44.11 degrees (North through East)
! Clean map  min=-0.0035577  max=0.024379 Jy/beam
mapcolor color, 0.9
! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5.
device "J0618+7821_S_2006_02_23_yyk\_map.gif/gif"
! Attempting to open device: 'J0618+7821_S_2006_02_23_yyk_map.gif/gif'
mapplot cln
quit
! Quitting program
! Log file J0618+7821_S_2006_02_23_yyk_uvs.log closed on Wed Jul  5 11:32:32 2006