! Started logfile: J0839+1802_S.log on Mon Feb 12 20:08:21 2007
observe J0839+1802_S.edt
! Reading UV FITS file: J0839+1802_S.edt
! AN table 1: 84 integrations on 153 of 153 possible baselines.
! AN table 2: 145 integrations on 153 of 153 possible baselines.
! AN table 3: 71 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.0630501 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: J0839+18
! 
! 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  2.22997e+09        8e+06          1        8e+06
!  02        2  2.25997e+09        8e+06          1        8e+06
!  03        3  2.34997e+09        8e+06          1        8e+06
!  04        4  2.36997e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 1912 lines of history.
! 
! Reading 11576 visibilities.
![@gonzo7-0.4 J0839+1802_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 = 7.0
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 1417 telescope corrections were flagged in sub-array 1.
!  A total of 2568 telescope corrections were flagged in sub-array 2.
!  A total of 818 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 1442 telescope corrections were flagged in sub-array 1.
!  A total of 2558 telescope corrections were flagged in sub-array 2.
!  A total of 806 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 1454 telescope corrections were flagged in sub-array 1.
!  A total of 2580 telescope corrections were flagged in sub-array 2.
!  A total of 814 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 1489 telescope corrections were flagged in sub-array 1.
!  A total of 2570 telescope corrections were flagged in sub-array 2.
!  A total of 807 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.794234Jy  sigma=0.014726
! Fit after  self-cal, rms=0.793388Jy  sigma=0.015165
! 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=2.125 mas, bmaj=5.421 mas, bpa=-12.73 degrees
! Estimated noise=1267.88 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 = 0.149103 Jy
! Total flux subtracted in 50 components = 0.149103 Jy
! Clean residual min=-0.012965 max=0.041589 Jy/beam
! Clean residual mean=0.000038 rms=0.004257 Jy/beam
! Combined flux in latest and established models = 0.149103 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 0.149103 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.096824Jy  sigma=0.001836
! Fit after  self-cal, rms=0.096825Jy  sigma=0.001836
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0354208 Jy
! Total flux subtracted in 50 components = 0.0354208 Jy
! Clean residual min=-0.009936 max=0.018938 Jy/beam
! Clean residual mean=0.000032 rms=0.002930 Jy/beam
! Combined flux in latest and established models = 0.184524 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 16 model components to the UV plane model.
! The established model now contains 16 components and 0.184524 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.079170Jy  sigma=0.001493
! Fit after  self-cal, rms=0.079143Jy  sigma=0.001492
! 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=2.948 mas, bmaj=8.542 mas, bpa=-20.01 degrees
! Estimated noise=486.245 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 = 0.0320278 Jy
! Component: 100  -  total flux cleaned = 0.0495961 Jy
! Total flux subtracted in 100 components = 0.0495961 Jy
! Clean residual min=-0.008739 max=0.020800 Jy/beam
! Clean residual mean=0.000100 rms=0.003453 Jy/beam
! Combined flux in latest and established models = 0.23412 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 24 model components to the UV plane model.
! The established model now contains 37 components and 0.23412 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.066717Jy  sigma=0.001248
! Fit after  self-cal, rms=0.066622Jy  sigma=0.001247
! 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 75 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        1.00*    GC        1.00*    HH        1.00*    HN        1.00*    
!   LA        1.00*    MC        1.05     MK        1.00*    NY        0.93     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        0.85     WF        1.00*    BR        1.00*    KK        1.00*    
!   KP        1.00*    WZ        0.85     
! 
!  A total of 30 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   FD        1.00*    GC        0.95     HH        1.00*    HN        1.00*    
!   LA        1.00*    MC        1.00*    MK        0.83     NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        1.00     WF        1.00*    BR        1.00*    KK        0.79     
!   KP        1.00*    WZ        1.00*    
! 
!  A total of 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   FD        1.13     GC        1.00*    HH        1.00*    HN        0.93     
!   LA        0.99     MC        1.00*    MK        0.99     NY        1.00*    
!   ON        1.00*    OV        1.03     PT        0.91     SC        1.00*    
!   TS        1.00*    WF        0.96     BR        1.09     KK        0.92     
!   KP        0.89     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 66 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        1.00*    GC        1.00*    HH        1.00*    HN        1.00*    
!   LA        1.00*    MC        1.00     MK        1.00*    NY        1.04     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        1.22     WF        1.00*    BR        1.00*    KK        1.00*    
!   KP        1.00*    WZ        0.82     
! 
!  A total of 36 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   FD        1.00*    GC        1.07     HH        1.00*    HN        1.00*    
!   LA        1.00*    MC        1.00*    MK        0.88     NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        0.85     WF        1.00*    BR        1.00*    KK        0.84     
!   KP        1.00*    WZ        1.00*    
! 
!  A total of 6 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   FD        0.98     GC        1.00*    HH        1.00*    HN        0.96     
!   LA        0.99     MC        1.00*    MK        1.06     NY        1.00*    
!   ON        1.00*    OV        1.08     PT        0.89     SC        1.00*    
!   TS        1.00*    WF        0.94     BR        1.19     KK        0.92     
!   KP        0.92     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 54 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        1.00*    GC        1.00*    HH        1.00*    HN        1.00*    
!   LA        1.00*    MC        0.89     MK        1.00*    NY        0.95     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        1.05     WF        1.00*    BR        1.00*    KK        1.00*    
!   KP        1.00*    WZ        0.72     
! 
!  A total of 30 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   FD        0.00*    GC        0.00*    HH        0.00*    HN        0.00*    
!   LA        0.00*    MC        0.00*    MK        0.00*    NY        0.00*    
!   ON        0.00*    OV        0.00*    PT        0.00*    SC        0.00*    
!   TS        0.00*    WF        0.00*    BR        0.00*    KK        0.00*    
!   KP        0.00*    WZ        0.00*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   FD        0.95     GC        1.00*    HH        1.00*    HN        1.18     
!   LA        0.90     MC        1.00*    MK        1.05     NY        1.00*    
!   ON        1.00*    OV        1.09     PT        1.00     SC        1.00*    
!   TS        1.00*    WF        1.02     BR        1.20     KK        0.94     
!   KP        0.97     WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 15 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   FD        1.00*    GC        1.00*    HH        1.00*    HN        1.00*    
!   LA        1.00*    MC        1.26     MK        1.00*    NY        0.94     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        0.77     WF        1.00*    BR        1.00*    KK        1.00*    
!   KP        1.00*    WZ        1.01     
! 
!  A total of 24 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   FD        1.00*    GC        1.16     HH        1.00*    HN        1.00*    
!   LA        1.00*    MC        1.00*    MK        0.90     NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   TS        0.92     WF        1.00*    BR        1.00*    KK        0.87     
!   KP        1.00*    WZ        1.00*    
! 
!  A total of 18 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   FD        0.84     GC        1.00*    HH        1.00*    HN        1.10     
!   LA        0.80     MC        1.00*    MK        1.04     NY        1.00*    
!   ON        1.00*    OV        0.98     PT        0.95     SC        1.00*    
!   TS        1.00*    WF        1.05     BR        1.12     KK        0.96     
!   KP        0.95     WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.066622Jy  sigma=0.001247
! Fit after  self-cal, rms=0.060669Jy  sigma=0.001150
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.082 mas, bmaj=10.48 mas, bpa=-23.43 degrees
! Estimated noise=480.523 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 (-9.6, 1.6).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0166658 Jy
! Component: 100  -  total flux cleaned = 0.022507 Jy
! Total flux subtracted in 100 components = 0.022507 Jy
! Clean residual min=-0.003613 max=0.004950 Jy/beam
! Clean residual mean=0.000099 rms=0.001288 Jy/beam
! Combined flux in latest and established models = 0.256627 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 15 model components to the UV plane model.
! The established model now contains 52 components and 0.256627 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.056612Jy  sigma=0.001072
! Fit after  self-cal, rms=0.056451Jy  sigma=0.001068
! 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 = 0.00289239 Jy
! Component: 100  -  total flux cleaned = 0.00350927 Jy
! Total flux subtracted in 100 components = 0.00350927 Jy
! Clean residual min=-0.003268 max=0.004508 Jy/beam
! Clean residual mean=0.000090 rms=0.001196 Jy/beam
! Combined flux in latest and established models = 0.260136 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 17 model components to the UV plane model.
! The established model now contains 67 components and 0.260136 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.056159Jy  sigma=0.001064
! Fit after  self-cal, rms=0.054399Jy  sigma=0.001041
! Inverting map and beam 
! Estimated beam: bmin=3.065 mas, bmaj=10.47 mas, bpa=-23.55 degrees
! Estimated noise=477.271 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 = 0.00359472 Jy
! Component: 100  -  total flux cleaned = 0.00538243 Jy
! Total flux subtracted in 100 components = 0.00538243 Jy
! Clean residual min=-0.002917 max=0.003850 Jy/beam
! Clean residual mean=0.000052 rms=0.000912 Jy/beam
! Combined flux in latest and established models = 0.265518 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 79 components and 0.265518 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.054162Jy  sigma=0.001037
! Fit after  self-cal, rms=0.054143Jy  sigma=0.001036
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save J0839+1802_S
! Writing UV FITS file: J0839+1802_S.uvf
! Writing 79 model components to file: J0839+1802_S.mod
! wwins: Wrote 2 windows to J0839+1802_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.065 x 10.47 at -23.55 degrees (North through East)
! Clean map  min=-0.0029521  max=0.20441 Jy/beam
! Writing clean map to FITS file: J0839+1802_S.fits
! Writing difmap environment to: J0839+1802_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot J0839+1802_S]
device J0839+1802_Suv.ps/vps,1,2
! Attempting to open device: 'J0839+1802_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device J0839+1802_Sim.ps/vps
! Attempting to open device: 'J0839+1802_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=3.065 mas, bmaj=10.47 mas, bpa=-23.55 degrees
! Estimated noise=477.271 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.065 x 10.47 at -23.55 degrees (North through East)
! Clean map  min=-0.0029521  max=0.20441 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file J0839+1802_S.log closed on Mon Feb 12 20:08:51 2007