! Started logfile: 0823+033_X.log on Wed May 14 11:48:36 2008
observe 0823+033_X.edt
! Reading UV FITS file: 0823+033_X.edt
! AN table 1: 19 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.0870313 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0823+033
! 
! 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  8.40997e+09        8e+06          1        8e+06
!  02        2  8.47997e+09        8e+06          1        8e+06
!  03        3  8.79497e+09        8e+06          1        8e+06
!  04        4  8.89997e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 938 lines of history.
! 
! Reading 1012 visibilities.
![@gonzo8-0.1 0823+033_X]
print "***********************************"
! *********************************** 
print "*** Using gonzo instruction set ***"
! *** Using gonzo instruction set *** 
print "***********************************"
! *********************************** 
float field_size
field_size = 1024
float field_cell
field_cell = 0.1
integer clean_niter
clean_niter = 50
float clean_gain
clean_gain = 0.03
float dynam
dynam = 8.0
float win_mult
win_mult = 1.8
float solint
solint = 3.6/6.0
logical doflt
doflt = true
logical doamp
float new_peak
float flux_cutoff
mapsize field_size,field_cell
! Map grid = 1024x1024 pixels with 0.100x0.100 milli-arcsec cellsize.
select
! 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
startmod
! Applying default point source starting model.
! Performing phase self-cal
! Adding 1 model components to the UV plane model.
! The established model now contains 1 components and 1 Jy
! 
! Correcting IF 1.
!  A total of 288 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 284 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 285 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 291 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.204138Jy  sigma=0.002093
! Fit after  self-cal, rms=0.201101Jy  sigma=0.002087
! clrmod: Cleared the established, tentative and continuum models.
! Redundant starting model cleared.
uvweight 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.
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.6539 mas, bmaj=1.516 mas, bpa=-12.56 degrees
! Estimated noise=3578.72 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! Added new window around map position (0, 0).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.780949 Jy
! Total flux subtracted in 50 components = 0.780949 Jy
! Clean residual min=-0.050317 max=0.217793 Jy/beam
! Clean residual mean=0.000615 rms=0.020405 Jy/beam
! Combined flux in latest and established models = 0.780949 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 1 model components to the UV plane model.
! The established model now contains 1 components and 0.780949 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.295249Jy  sigma=0.003494
! Fit after  self-cal, rms=0.295249Jy  sigma=0.003494
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.180232 Jy
! Total flux subtracted in 50 components = 0.180232 Jy
! Clean residual min=-0.036929 max=0.070221 Jy/beam
! Clean residual mean=0.000286 rms=0.011903 Jy/beam
! Combined flux in latest and established models = 0.961182 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 7 model components to the UV plane model.
! The established model now contains 7 components and 0.961182 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.197969Jy  sigma=0.002204
! Fit after  self-cal, rms=0.197909Jy  sigma=0.002203
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Uniform Weighting CLEAN ***"
! *** Finished Uniform Weighting CLEAN *** 
print "****************************************"
! **************************************** 
uvweight 0,-1
! Uniform weighting is not currently selected.
! Gridding weights will be scaled by errors raised to the power -1.
! Radial weighting is not currently selected.
win_mult = win_mult * 1.6
clean_niter = clean_niter * 2
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.7077 mas, bmaj=1.808 mas, bpa=-13.96 degrees
! Estimated noise=2682.06 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0922582 Jy
! Component: 100  -  total flux cleaned = 0.14569 Jy
! Total flux subtracted in 100 components = 0.14569 Jy
! Clean residual min=-0.026977 max=0.055073 Jy/beam
! Clean residual mean=-0.000004 rms=0.009287 Jy/beam
! Combined flux in latest and established models = 1.10687 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 38 model components to the UV plane model.
! The established model now contains 42 components and 1.10687 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.164938Jy  sigma=0.001628
! Fit after  self-cal, rms=0.164263Jy  sigma=0.001623
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Natural Weighting CLEAN ***"
! *** Finished Natural Weighting CLEAN *** 
print "****************************************"
! **************************************** 
gscale true
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        1.07     GC        0.98     HH        1.00*    
!   HN        0.98     KK        0.96     KP        0.98     LA        0.94     
!   MC        1.00*    MK        1.00     NL        0.98     NY        1.00*    
!   ON        1.00*    OV        0.95     PT        1.00*    SC        1.09     
!   WF        1.26     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        1.16     GC        1.01     HH        1.00*    
!   HN        1.02     KK        0.97     KP        0.97     LA        0.95     
!   MC        1.00*    MK        0.97     NL        0.97     NY        1.00*    
!   ON        1.00*    OV        0.92     PT        1.00*    SC        1.05     
!   WF        1.23     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 9 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        1.09     GC        1.01     HH        1.00*    
!   HN        1.00     KK        0.99     KP        0.98     LA        0.94     
!   MC        1.00*    MK        0.96     NL        0.97     NY        1.00*    
!   ON        1.00*    OV        0.98     PT        1.00*    SC        1.04     
!   WF        1.30     WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.97     FD        1.03     GC        1.06     HH        1.00*    
!   HN        1.00     KK        0.99     KP        0.97     LA        0.96     
!   MC        1.00*    MK        0.94     NL        0.99     NY        1.00*    
!   ON        1.00*    OV        0.94     PT        1.00*    SC        1.09     
!   WF        1.40     WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.164263Jy  sigma=0.001623
! Fit after  self-cal, rms=0.146500Jy  sigma=0.001363
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.709 mas, bmaj=1.899 mas, bpa=-14.87 degrees
! Estimated noise=2621.41 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! Added new window around map position (0.7, 2.8).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.047471 Jy
! Component: 100  -  total flux cleaned = 0.0756635 Jy
! Total flux subtracted in 100 components = 0.0756635 Jy
! Clean residual min=-0.013304 max=0.023432 Jy/beam
! Clean residual mean=0.000996 rms=0.004403 Jy/beam
! Combined flux in latest and established models = 1.18254 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 19 model components to the UV plane model.
! The established model now contains 61 components and 1.18254 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.130520Jy  sigma=0.001147
! Fit after  self-cal, rms=0.129934Jy  sigma=0.001139
! Inverting map 
dynam = dynam - 1.0
doamp = true
solint = solint * (6.0/3.6)
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 doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0208141 Jy
! Component: 100  -  total flux cleaned = 0.0339176 Jy
! Total flux subtracted in 100 components = 0.0339176 Jy
! Clean residual min=-0.013224 max=0.020085 Jy/beam
! Clean residual mean=0.000844 rms=0.003700 Jy/beam
! Combined flux in latest and established models = 1.21645 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 20 model components to the UV plane model.
! The established model now contains 76 components and 1.21645 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.126213Jy  sigma=0.001093
! Fit after  self-cal, rms=0.122587Jy  sigma=0.001041
! Inverting map and beam 
! Estimated beam: bmin=0.7071 mas, bmaj=1.893 mas, bpa=-14.88 degrees
! Estimated noise=2617.38 mJy/beam.
doamp = false
solint = solint / (6.0/3.6)
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 doamp, doflt, solint
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0142268 Jy
! Component: 100  -  total flux cleaned = 0.0227779 Jy
! Total flux subtracted in 100 components = 0.0227779 Jy
! Clean residual min=-0.011625 max=0.013411 Jy/beam
! Clean residual mean=0.000744 rms=0.002869 Jy/beam
! Combined flux in latest and established models = 1.23923 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 18 model components to the UV plane model.
! The established model now contains 93 components and 1.23923 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.120779Jy  sigma=0.001016
! Fit after  self-cal, rms=0.120700Jy  sigma=0.001015
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0823+033_X
! Writing UV FITS file: 0823+033_X.uvf
! Writing 93 model components to file: 0823+033_X.mod
! wwins: Wrote 2 windows to 0823+033_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.7071 x 1.893 at -14.88 degrees (North through East)
! Clean map  min=-0.010798  max=0.99692 Jy/beam
! Writing clean map to FITS file: 0823+033_X.fits
! Writing difmap environment to: 0823+033_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0823+033_X]
device 0823+033_Xuv.ps/vps,1,2
! Attempting to open device: '0823+033_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0823+033_Xim.ps/vps
! Attempting to open device: '0823+033_Xim.ps/vps'
uvweight 0,-1
! Uniform weighting is not currently selected.
! Gridding weights will be scaled by errors raised to the power -1.
! Radial weighting is not currently selected.
loglevs -1,2048,2
! The new contour levels are:
!  -1 1 2 4 8 16 32 64 128 256 512 1024 2048
cmul = imstat(rms)*3
! Inverting map and beam 
! Estimated beam: bmin=0.7071 mas, bmaj=1.893 mas, bpa=-14.88 degrees
! Estimated noise=2617.38 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.7071 x 1.893 at -14.88 degrees (North through East)
! Clean map  min=-0.010798  max=0.99692 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo8-0.1]
quit
! Quitting program
! Log file 0823+033_X.log closed on Wed May 14 11:48:43 2008