! Started logfile: NGC6251_S.log on Thu Nov  2 18:17:06 2006
observe NGC6251_S.edt
! Reading UV FITS file: NGC6251_S.edt
! AN table 1: 9 integrations on 136 of 136 possible baselines.
! AN table 2: 47 integrations on 136 of 136 possible baselines.
! Apparent sampling: 0.125525 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: NGC6251
! Warning: Unknown AN-table MNTSTA value (4).
!          Will assume that it is ground-based.
! Warning: Unknown AN-table MNTSTA value (4).
!          Will assume that it is ground-based.
! 
! 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 1577 lines of history.
! 
! Reading 3824 visibilities.
![@gonzo9-0.4 NGC6251_S]
print "***********************************"
! *********************************** 
print "*** Using gonzo instruction set ***"
! *** Using gonzo instruction set *** 
print "***********************************"
! *********************************** 
float field_size
field_size = 1024
float field_cell
field_cell = 0.4
integer clean_niter
clean_niter = 50
float clean_gain
clean_gain = 0.03
float dynam
dynam = 9.0
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 0.400x0.400 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 110 telescope corrections were flagged in sub-array 1.
!  A total of 565 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 2.
!  A total of 113 telescope corrections were flagged in sub-array 1.
!  A total of 565 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 3.
!  A total of 113 telescope corrections were flagged in sub-array 1.
!  A total of 565 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 4.
!  A total of 110 telescope corrections were flagged in sub-array 1.
!  A total of 582 telescope corrections were flagged in sub-array 2.
! 
! Fit before self-cal, rms=0.609731Jy  sigma=0.006758
! Fit after  self-cal, rms=0.609727Jy  sigma=0.006758
! 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=1.757 mas, bmaj=4.228 mas, bpa=-26.93 degrees
! Estimated noise=1949.24 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 = 0.283984 Jy
! Total flux subtracted in 50 components = 0.283984 Jy
! Clean residual min=-0.037139 max=0.106310 Jy/beam
! Clean residual mean=-0.000422 rms=0.011990 Jy/beam
! Combined flux in latest and established models = 0.283984 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 5 model components to the UV plane model.
! The established model now contains 5 components and 0.283984 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.271202Jy  sigma=0.002714
! Fit after  self-cal, rms=0.271180Jy  sigma=0.002714
! 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=2.341 mas, bmaj=4.682 mas, bpa=-26.65 degrees
! Estimated noise=1163.65 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 = 0.15817 Jy
! Component: 100  -  total flux cleaned = 0.227392 Jy
! Total flux subtracted in 100 components = 0.227392 Jy
! Clean residual min=-0.026605 max=0.056212 Jy/beam
! Clean residual mean=0.000051 rms=0.008300 Jy/beam
! Combined flux in latest and established models = 0.511376 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 19 components and 0.511376 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.171741Jy  sigma=0.001639
! Fit after  self-cal, rms=0.171455Jy  sigma=0.001636
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Natural Weighting CLEAN ***"
! *** Finished Natural Weighting CLEAN *** 
print "****************************************"
! **************************************** 
gscale true
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.86     FD        0.93     HN        1.34     HO        1.00*    
!   KP        1.00*    LA        1.05     MK        1.00*    NL        1.22     
!   NY        1.00*    OV        1.05     PT        1.07     MC        1.00*    
!   SC        1.06     SV        1.00     TC        1.00*    WF        1.00*    
!   WZ        0.79     
! 
!  A total of 36 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.92     FD        0.75     HN        1.26     HO        1.00*    
!   KP        1.00*    LA        0.95     MK        1.00*    NL        1.16     
!   NY        1.03     OV        0.88     PT        0.90     MC        1.14     
!   SC        1.07     SV        0.80     TC        1.00*    WF        1.00*    
!   WZ        0.81     
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.84     FD        1.00     HN        1.65     HO        1.00*    
!   KP        1.00*    LA        1.04     MK        1.00*    NL        1.23     
!   NY        1.00*    OV        1.10     PT        1.06     MC        1.00*    
!   SC        0.95     SV        1.03     TC        1.00*    WF        1.00*    
!   WZ        0.86     
! 
!  A total of 36 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.94     FD        0.76     HN        1.46     HO        1.00*    
!   KP        1.00*    LA        0.97     MK        1.00*    NL        1.14     
!   NY        1.02     OV        0.92     PT        1.00     MC        1.06     
!   SC        1.03     SV        0.79     TC        1.00*    WF        1.00*    
!   WZ        0.85     
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.83     FD        0.93     HN        1.25     HO        1.00*    
!   KP        1.00*    LA        0.95     MK        1.00*    NL        1.21     
!   NY        1.00*    OV        1.06     PT        1.07     MC        1.00*    
!   SC        1.21     SV        1.20     TC        1.00*    WF        1.00*    
!   WZ        0.73     
! 
!  A total of 36 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.88     FD        0.73     HN        1.15     HO        1.00*    
!   KP        1.00*    LA        0.88     MK        1.00*    NL        1.13     
!   NY        1.00     OV        0.90     PT        0.97     MC        1.54     
!   SC        1.05     SV        0.75     TC        1.00*    WF        1.00*    
!   WZ        0.95     
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.74     FD        1.07     HN        2.84     HO        1.00*    
!   KP        1.00*    LA        1.07     MK        1.00*    NL        1.33     
!   NY        1.00*    OV        1.07     PT        0.98     MC        1.00*    
!   SC        1.99     SV        1.04     TC        1.00*    WF        1.00*    
!   WZ        0.78     
! 
!  A total of 36 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.76     FD        0.75     HN        2.73     HO        1.00*    
!   KP        1.00*    LA        0.88     MK        1.00*    NL        1.12     
!   NY        1.04     OV        0.90     PT        0.96     MC        1.46     
!   SC        1.22     SV        0.80     TC        1.00*    WF        1.00*    
!   WZ        0.89     
! 
! 
! Fit before self-cal, rms=0.171455Jy  sigma=0.001636
! Fit after  self-cal, rms=0.127932Jy  sigma=0.001200
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.316 mas, bmaj=4.745 mas, bpa=-27.81 degrees
! Estimated noise=1107.58 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 (-4.8, 3.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0250385 Jy
! Component: 100  -  total flux cleaned = 0.0353246 Jy
! Total flux subtracted in 100 components = 0.0353246 Jy
! Clean residual min=-0.009081 max=0.011387 Jy/beam
! Clean residual mean=0.000065 rms=0.002245 Jy/beam
! Combined flux in latest and established models = 0.546701 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 11 model components to the UV plane model.
! The established model now contains 30 components and 0.546701 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.123554Jy  sigma=0.001138
! Fit after  self-cal, rms=0.123073Jy  sigma=0.001132
! 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 = 0.00784861 Jy
! Component: 100  -  total flux cleaned = 0.00869995 Jy
! Total flux subtracted in 100 components = 0.00869995 Jy
! Clean residual min=-0.008345 max=0.010231 Jy/beam
! Clean residual mean=0.000077 rms=0.001986 Jy/beam
! Combined flux in latest and established models = 0.555401 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 18 model components to the UV plane model.
! The established model now contains 45 components and 0.555401 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.122442Jy  sigma=0.001124
! Fit after  self-cal, rms=0.119781Jy  sigma=0.001096
! Inverting map and beam 
! Estimated beam: bmin=2.314 mas, bmaj=4.751 mas, bpa=-28.07 degrees
! Estimated noise=1110.21 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 = 0.00687578 Jy
! Component: 100  -  total flux cleaned = 0.00901137 Jy
! Total flux subtracted in 100 components = 0.00901137 Jy
! Clean residual min=-0.005045 max=0.006485 Jy/beam
! Clean residual mean=-0.000001 rms=0.001405 Jy/beam
! Combined flux in latest and established models = 0.564412 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 11 model components to the UV plane model.
! The established model now contains 50 components and 0.564412 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.119391Jy  sigma=0.001091
! Fit after  self-cal, rms=0.119288Jy  sigma=0.001090
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save NGC6251_S
! Writing UV FITS file: NGC6251_S.uvf
! Writing 50 model components to file: NGC6251_S.mod
! wwins: Wrote 2 windows to NGC6251_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.314 x 4.751 at -28.07 degrees (North through East)
! Clean map  min=-0.0048829  max=0.38628 Jy/beam
! Writing clean map to FITS file: NGC6251_S.fits
! Writing difmap environment to: NGC6251_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot NGC6251_S]
device NGC6251_Suv.ps/vps,1,2
! Attempting to open device: 'NGC6251_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device NGC6251_Sim.ps/vps
! Attempting to open device: 'NGC6251_Sim.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=2.314 mas, bmaj=4.751 mas, bpa=-28.07 degrees
! Estimated noise=1110.21 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.314 x 4.751 at -28.07 degrees (North through East)
! Clean map  min=-0.0048829  max=0.38628 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo9-0.4]
quit
! Quitting program
! Log file NGC6251_S.log closed on Thu Nov  2 18:17:27 2006