! Started logfile: 1806+456_X.log on Tue Aug  2 15:54:21 2005
observe 1806+456_X.edt
! Reading UV FITS file: 1806+456_X.edt
! AN table 1: 27 integrations on 171 of 171 possible baselines.
! AN table 2: 25 integrations on 171 of 171 possible baselines.
! AN table 3: 61 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.123169 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1806+456
! 
! 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 1818 lines of history.
! 
! Reading 9520 visibilities.
![@gonzo8-0.1 1806+456_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 465 telescope corrections were flagged in sub-array 1.
!  A total of 364 telescope corrections were flagged in sub-array 2.
!  A total of 835 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 458 telescope corrections were flagged in sub-array 1.
!  A total of 362 telescope corrections were flagged in sub-array 2.
!  A total of 831 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 470 telescope corrections were flagged in sub-array 1.
!  A total of 364 telescope corrections were flagged in sub-array 2.
!  A total of 832 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 454 telescope corrections were flagged in sub-array 1.
!  A total of 363 telescope corrections were flagged in sub-array 2.
!  A total of 832 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.833976Jy  sigma=0.014303
! Fit after  self-cal, rms=0.833289Jy  sigma=0.014324
! 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=1.022 mas, bmaj=1.116 mas, bpa=37.98 degrees
! Estimated noise=983.85 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 = 0.130553 Jy
! Total flux subtracted in 50 components = 0.130553 Jy
! Clean residual min=-0.008079 max=0.036438 Jy/beam
! Clean residual mean=0.000149 rms=0.002960 Jy/beam
! Combined flux in latest and established models = 0.130553 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 2 model components to the UV plane model.
! The established model now contains 2 components and 0.130553 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.078403Jy  sigma=0.001319
! Fit after  self-cal, rms=0.078403Jy  sigma=0.001319
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0301579 Jy
! Total flux subtracted in 50 components = 0.0301579 Jy
! Clean residual min=-0.005050 max=0.010820 Jy/beam
! Clean residual mean=0.000069 rms=0.001486 Jy/beam
! Combined flux in latest and established models = 0.160711 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 9 components and 0.160711 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.068225Jy  sigma=0.001120
! Fit after  self-cal, rms=0.068211Jy  sigma=0.001120
! 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=1.268 mas, bmaj=1.677 mas, bpa=81.95 degrees
! Estimated noise=539.929 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 = 0.0129764 Jy
! Component: 100  -  total flux cleaned = 0.0180395 Jy
! Total flux subtracted in 100 components = 0.0180395 Jy
! Clean residual min=-0.002912 max=0.004567 Jy/beam
! Clean residual mean=0.000135 rms=0.000868 Jy/beam
! Combined flux in latest and established models = 0.178751 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 14 model components to the UV plane model.
! The established model now contains 23 components and 0.178751 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.066298Jy  sigma=0.001079
! Fit after  self-cal, rms=0.066283Jy  sigma=0.001079
! 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 36 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        0.91     HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        0.96     MK        1.00*    NL        1.00*    NY        0.85     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.15     
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.09     FD        0.98     GC        1.00*    HH        1.00*    
!   HN        0.94     KK        1.00*    KP        0.93     LA        0.93     
!   MC        1.00*    MK        1.04     NL        0.99     NY        1.00*    
!   ON        1.00*    OV        1.04     PT        0.99     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.01     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        1.06     KK        1.00*    KP        1.05     LA        1.00     
!   MC        1.00*    MK        1.00*    NL        1.02     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.96     SC        1.02     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 39 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        0.98     HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        0.86     MK        1.00*    NL        1.00*    NY        0.83     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.15     
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.06     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        0.96     KK        1.00*    KP        0.97     LA        0.96     
!   MC        1.00*    MK        1.04     NL        0.93     NY        1.00*    
!   ON        1.00*    OV        1.02     PT        0.97     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.01     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        1.05     KK        1.00*    KP        0.99     LA        1.01     
!   MC        1.00*    MK        1.00*    NL        0.98     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.98     SC        1.02     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 39 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        4.07     HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        1.89     MK        1.00*    NL        1.00*    NY        0.69     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        0.74     
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.02     FD        1.06     GC        1.00*    HH        1.00*    
!   HN        0.95     KK        1.00*    KP        1.02     LA        0.91     
!   MC        1.00*    MK        1.03     NL        0.97     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.98     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.95     FD        1.01     GC        1.00*    HH        1.00*    
!   HN        1.01     KK        1.00*    KP        1.02     LA        0.97     
!   MC        1.00*    MK        1.00*    NL        0.96     NY        1.00*    
!   ON        1.00*    OV        1.02     PT        0.99     SC        0.95     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 39 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.09     HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        0.87     MK        1.00*    NL        1.00*    NY        0.81     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        0.97     
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.10     FD        0.95     GC        1.00*    HH        1.00*    
!   HN        0.94     KK        1.00*    KP        0.98     LA        0.95     
!   MC        1.00*    MK        1.00     NL        0.94     NY        1.00*    
!   ON        1.00*    OV        1.05     PT        0.99     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00     FD        1.01     GC        1.00*    HH        1.00*    
!   HN        1.03     KK        1.00*    KP        1.00     LA        1.00     
!   MC        1.00*    MK        1.00*    NL        1.03     NY        1.00*    
!   ON        1.00*    OV        1.02     PT        0.99     SC        0.97     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.066283Jy  sigma=0.001079
! Fit after  self-cal, rms=0.065577Jy  sigma=0.001076
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=1.318 mas, bmaj=1.653 mas, bpa=81.34 degrees
! Estimated noise=539.085 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 = 0.00020366 Jy
! Component: 100  -  total flux cleaned = 0.000234518 Jy
! Total flux subtracted in 100 components = 0.000234518 Jy
! Clean residual min=-0.002623 max=0.003359 Jy/beam
! Clean residual mean=0.000072 rms=0.000720 Jy/beam
! Combined flux in latest and established models = 0.178985 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 26 components and 0.178985 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.065558Jy  sigma=0.001076
! Fit after  self-cal, rms=0.065561Jy  sigma=0.001076
! 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 = 3.25379e-05 Jy
! Component: 100  -  total flux cleaned = 3.59311e-05 Jy
! Total flux subtracted in 100 components = 3.59311e-05 Jy
! Clean residual min=-0.002645 max=0.003311 Jy/beam
! Clean residual mean=0.000072 rms=0.000718 Jy/beam
! Combined flux in latest and established models = 0.179021 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 6 model components to the UV plane model.
! The established model now contains 28 components and 0.179021 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.065551Jy  sigma=0.001075
! Fit after  self-cal, rms=0.065168Jy  sigma=0.001060
! Inverting map and beam 
! Estimated beam: bmin=1.316 mas, bmaj=1.656 mas, bpa=81.54 degrees
! Estimated noise=541.236 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 = 0.000594922 Jy
! Component: 100  -  total flux cleaned = 0.000669449 Jy
! Total flux subtracted in 100 components = 0.000669449 Jy
! Clean residual min=-0.002577 max=0.003162 Jy/beam
! Clean residual mean=0.000067 rms=0.000709 Jy/beam
! Combined flux in latest and established models = 0.179691 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 35 components and 0.179691 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.065156Jy  sigma=0.001060
! Fit after  self-cal, rms=0.065157Jy  sigma=0.001060
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1806+456_X
! Writing UV FITS file: 1806+456_X.uvf
! Writing 35 model components to file: 1806+456_X.mod
! wwins: Wrote 1 windows to 1806+456_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.316 x 1.656 at 81.54 degrees (North through East)
! Clean map  min=-0.0025491  max=0.16742 Jy/beam
! Writing clean map to FITS file: 1806+456_X.fits
! Writing difmap environment to: 1806+456_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1806+456_X]
device 1806+456_Xuv.ps/vps,1,2
! Attempting to open device: '1806+456_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1806+456_Xim.ps/vps
! Attempting to open device: '1806+456_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=1.316 mas, bmaj=1.656 mas, bpa=81.54 degrees
! Estimated noise=541.236 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.316 x 1.656 at 81.54 degrees (North through East)
! Clean map  min=-0.0025491  max=0.16742 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo8-0.1]
quit
! Quitting program
! Log file 1806+456_X.log closed on Tue Aug  2 15:54:46 2005