! Started logfile: 3C309.1_S.log on Thu Feb  7 19:43:21 2008
observe 3C309.1_S.edt
! Reading UV FITS file: 3C309.1_S.edt
! AN table 1: 31 integrations on 136 of 136 possible baselines.
! AN table 2: 105 integrations on 136 of 136 possible baselines.
! Apparent sampling: 0.137003 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 3C309.1
! 
! 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  2.22497e+09        8e+06          1        8e+06
!  02        2  2.24497e+09        8e+06          1        8e+06
!  03        3  2.33497e+09        8e+06          1        8e+06
!  04        4  2.36497e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 1259 lines of history.
! 
! Reading 10136 visibilities.
![@gonzo6-0.4 3C309.1_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 = 6.0
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 451 telescope corrections were flagged in sub-array 1.
!  A total of 1620 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 2.
!  A total of 449 telescope corrections were flagged in sub-array 1.
!  A total of 1616 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 3.
!  A total of 473 telescope corrections were flagged in sub-array 1.
!  A total of 1629 telescope corrections were flagged in sub-array 2.
! 
! Correcting IF 4.
!  A total of 471 telescope corrections were flagged in sub-array 1.
!  A total of 1621 telescope corrections were flagged in sub-array 2.
! 
! Fit before self-cal, rms=0.440552Jy  sigma=0.005975
! Fit after  self-cal, rms=0.400061Jy  sigma=0.005533
! 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=2.587 mas, bmaj=3.319 mas, bpa=30.61 degrees
! Estimated noise=2625.28 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 = 0.635591 Jy
! Total flux subtracted in 50 components = 0.635591 Jy
! Clean residual min=-0.083960 max=0.202727 Jy/beam
! Clean residual mean=-0.001199 rms=0.023833 Jy/beam
! Combined flux in latest and established models = 0.635591 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 0.635591 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.480681Jy  sigma=0.007492
! Fit after  self-cal, rms=0.480591Jy  sigma=0.007491
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.222815 Jy
! Total flux subtracted in 50 components = 0.222815 Jy
! Clean residual min=-0.068511 max=0.143436 Jy/beam
! Clean residual mean=-0.000896 rms=0.018116 Jy/beam
! Combined flux in latest and established models = 0.858406 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 23 components and 0.858406 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.363998Jy  sigma=0.005612
! Fit after  self-cal, rms=0.363685Jy  sigma=0.005607
! Inverting map 
! Added new window around map position (-6.8, 23.2).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.152231 Jy
! Total flux subtracted in 50 components = 0.152231 Jy
! Clean residual min=-0.056221 max=0.097234 Jy/beam
! Clean residual mean=-0.000724 rms=0.014878 Jy/beam
! Combined flux in latest and established models = 1.01064 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 12 model components to the UV plane model.
! The established model now contains 34 components and 1.01064 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.302026Jy  sigma=0.004611
! Fit after  self-cal, rms=0.299184Jy  sigma=0.004570
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.11299 Jy
! Total flux subtracted in 50 components = 0.11299 Jy
! Clean residual min=-0.047998 max=0.068632 Jy/beam
! Clean residual mean=-0.000598 rms=0.012608 Jy/beam
! Combined flux in latest and established models = 1.12363 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 17 model components to the UV plane model.
! The established model now contains 46 components and 1.12363 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.258726Jy  sigma=0.003897
! Fit after  self-cal, rms=0.257055Jy  sigma=0.003873
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0851949 Jy
! Total flux subtracted in 50 components = 0.0851949 Jy
! Clean residual min=-0.041610 max=0.056140 Jy/beam
! Clean residual mean=-0.000501 rms=0.011146 Jy/beam
! Combined flux in latest and established models = 1.20882 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 50 components and 1.20882 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.231267Jy  sigma=0.003431
! Fit after  self-cal, rms=0.230198Jy  sigma=0.003415
! 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=3.319 mas, bmaj=3.855 mas, bpa=32.02 degrees
! Estimated noise=1381.12 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 = 0.0898732 Jy
! Component: 100  -  total flux cleaned = 0.145021 Jy
! Total flux subtracted in 100 components = 0.145021 Jy
! Clean residual min=-0.045374 max=0.100148 Jy/beam
! Clean residual mean=-0.001880 rms=0.016093 Jy/beam
! Combined flux in latest and established models = 1.35384 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 60 components and 1.35384 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.200764Jy  sigma=0.002862
! Fit after  self-cal, rms=0.199483Jy  sigma=0.002840
! Inverting map 
! Added new window around map position (4.4, -15.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0903458 Jy
! Component: 100  -  total flux cleaned = 0.14261 Jy
! Total flux subtracted in 100 components = 0.14261 Jy
! Clean residual min=-0.031103 max=0.045697 Jy/beam
! Clean residual mean=-0.001068 rms=0.009805 Jy/beam
! Combined flux in latest and established models = 1.49645 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 27 model components to the UV plane model.
! The established model now contains 84 components and 1.49645 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.163636Jy  sigma=0.002175
! Fit after  self-cal, rms=0.159570Jy  sigma=0.002118
! 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 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.03     FD        1.00*    GC        0.98     HN        1.00*    
!   KK        0.96     KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        1.01     NL        1.00*    NY        1.04     ON        1.00*    
!   OV        0.99     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.00     FD        0.99     GC        1.00     HN        1.01     
!   KK        1.14     KP        0.94     LA        0.96     MC        1.00*    
!   MK        1.08     NL        0.99     NY        1.26     ON        1.00*    
!   OV        1.00     PT        0.96     SC        0.99     WF        1.01     
!   WZ        1.00     
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.04     FD        1.00*    GC        0.97     HN        1.00*    
!   KK        0.95     KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        1.00     NL        1.00*    NY        1.06     ON        1.00*    
!   OV        0.99     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.01     FD        0.97     GC        1.02     HN        1.00     
!   KK        1.11     KP        0.95     LA        0.96     MC        1.00*    
!   MK        1.12     NL        0.98     NY        1.73     ON        1.04     
!   OV        1.00     PT        0.97     SC        1.04     WF        1.02     
!   WZ        1.00     
! 
! 
! Correcting IF 3.
!  A total of 12 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        1.00*    GC        0.97     HN        1.00*    
!   KK        0.97     KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        0.98     NL        1.00*    NY        1.11     ON        1.00*    
!   OV        1.02     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  A total of 15 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.02     FD        0.99     GC        1.02     HN        1.14     
!   KK        1.08     KP        0.96     LA        0.96     MC        0.85     
!   MK        0.92     NL        0.94     NY        0.99     ON        1.14     
!   OV        0.99     PT        0.96     SC        0.92     WF        1.42     
!   WZ        0.99     
! 
! 
! Correcting IF 4.
!  A total of 9 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        1.00*    GC        0.97     HN        1.00*    
!   KK        1.08     KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        0.99     NL        1.00*    NY        1.09     ON        1.00*    
!   OV        1.02     PT        1.00*    SC        1.00*    WF        1.00*    
!   WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.02     FD        0.99     GC        1.01     HN        1.13     
!   KK        1.08     KP        0.96     LA        0.95     MC        0.98     
!   MK        0.99     NL        0.94     NY        1.29     ON        1.01     
!   OV        1.01     PT        0.96     SC        0.94     WF        1.31     
!   WZ        0.97     
! 
! 
! Fit before self-cal, rms=0.159570Jy  sigma=0.002118
! Fit after  self-cal, rms=0.155003Jy  sigma=0.001934
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.303 mas, bmaj=3.883 mas, bpa=29.47 degrees
! Estimated noise=1404.62 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 = 0.0312266 Jy
! Component: 100  -  total flux cleaned = 0.0398625 Jy
! Total flux subtracted in 100 components = 0.0398626 Jy
! Clean residual min=-0.021591 max=0.023160 Jy/beam
! Clean residual mean=-0.000081 rms=0.006452 Jy/beam
! Combined flux in latest and established models = 1.53632 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 97 components and 1.53632 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.149475Jy  sigma=0.001831
! Fit after  self-cal, rms=0.148881Jy  sigma=0.001820
! 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 = 0.00774502 Jy
! Component: 100  -  total flux cleaned = 0.00945457 Jy
! Total flux subtracted in 100 components = 0.00945457 Jy
! Clean residual min=-0.020891 max=0.022778 Jy/beam
! Clean residual mean=-0.000029 rms=0.006204 Jy/beam
! Combined flux in latest and established models = 1.54577 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 16 model components to the UV plane model.
! The established model now contains 103 components and 1.54577 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.146442Jy  sigma=0.001783
! Fit after  self-cal, rms=0.141253Jy  sigma=0.001693
! Inverting map and beam 
! Estimated beam: bmin=3.303 mas, bmaj=3.892 mas, bpa=29.78 degrees
! Estimated noise=1409.7 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)
! Added new window around map position (0.4, 10.8).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0180695 Jy
! Component: 100  -  total flux cleaned = 0.0229952 Jy
! Total flux subtracted in 100 components = 0.0229952 Jy
! Clean residual min=-0.018919 max=0.019075 Jy/beam
! Clean residual mean=-0.000011 rms=0.005107 Jy/beam
! Combined flux in latest and established models = 1.56877 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 20 model components to the UV plane model.
! The established model now contains 119 components and 1.56877 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.138282Jy  sigma=0.001642
! Fit after  self-cal, rms=0.138038Jy  sigma=0.001639
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 3C309.1_S
! Writing UV FITS file: 3C309.1_S.uvf
! Writing 119 model components to file: 3C309.1_S.mod
! wwins: Wrote 4 windows to 3C309.1_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.303 x 3.892 at 29.78 degrees (North through East)
! Clean map  min=-0.018776  max=0.77362 Jy/beam
! Writing clean map to FITS file: 3C309.1_S.fits
! Writing difmap environment to: 3C309.1_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 3C309.1_S]
device 3C309.1_Suv.ps/vps,1,2
! Attempting to open device: '3C309.1_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 3C309.1_Sim.ps/vps
! Attempting to open device: '3C309.1_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=3.303 mas, bmaj=3.892 mas, bpa=29.78 degrees
! Estimated noise=1409.7 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.303 x 3.892 at 29.78 degrees (North through East)
! Clean map  min=-0.018776  max=0.77362 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo6-0.4]
quit
! Quitting program
! Log file 3C309.1_S.log closed on Thu Feb  7 19:43:28 2008