! Started logfile: OQ208_S.log on Fri Dec 20 08:12:33 2002
observe OQ208_S.edt
! Reading UV FITS file: OQ208_S.edt
! AN table 1: 16 integrations on 120 of 120 possible baselines.
! AN table 2: 131 integrations on 120 of 120 possible baselines.
! AN table 3: 49 integrations on 120 of 120 possible baselines.
! Apparent sampling: 0.192857 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: OQ208
! 
! 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 6831 lines of history.
! 
! Reading 18144 visibilities.
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 239 telescope corrections were flagged in sub-array 1.
!  A total of 1433 telescope corrections were flagged in sub-array 2.
!  A total of 624 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 239 telescope corrections were flagged in sub-array 1.
!  A total of 1425 telescope corrections were flagged in sub-array 2.
!  A total of 624 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 239 telescope corrections were flagged in sub-array 1.
!  A total of 1428 telescope corrections were flagged in sub-array 2.
!  A total of 636 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 239 telescope corrections were flagged in sub-array 1.
!  A total of 1442 telescope corrections were flagged in sub-array 2.
!  A total of 636 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.375501Jy  sigma=2.625807
! Fit after  self-cal, rms=0.375081Jy  sigma=2.623109
! 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=2.246 mas, bmaj=3.676 mas, bpa=-13.18 degrees
! Estimated noise=1.23595 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 = 0.790465 Jy
! Total flux subtracted in 50 components = 0.790465 Jy
! Clean residual min=-0.033388 max=0.240704 Jy/beam
! Clean residual mean=-0.000070 rms=0.011105 Jy/beam
! Combined flux in latest and established models = 0.790465 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 0.790465 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.499714Jy  sigma=3.491881
! Fit after  self-cal, rms=0.499654Jy  sigma=3.491465
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.261329 Jy
! Total flux subtracted in 50 components = 0.261329 Jy
! Clean residual min=-0.026652 max=0.126849 Jy/beam
! Clean residual mean=-0.000046 rms=0.007573 Jy/beam
! Combined flux in latest and established models = 1.05179 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 13 model components to the UV plane model.
! The established model now contains 17 components and 1.05179 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.334330Jy  sigma=2.330828
! Fit after  self-cal, rms=0.334165Jy  sigma=2.329668
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.154372 Jy
! Total flux subtracted in 50 components = 0.154372 Jy
! Clean residual min=-0.021896 max=0.081175 Jy/beam
! Clean residual mean=-0.000033 rms=0.005844 Jy/beam
! Combined flux in latest and established models = 1.20617 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 24 components and 1.20617 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.255872Jy  sigma=1.780920
! Fit after  self-cal, rms=0.255809Jy  sigma=1.780485
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.100269 Jy
! Total flux subtracted in 50 components = 0.100269 Jy
! Clean residual min=-0.019804 max=0.053591 Jy/beam
! Clean residual mean=-0.000024 rms=0.004928 Jy/beam
! Combined flux in latest and established models = 1.30643 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 10 model components to the UV plane model.
! The established model now contains 29 components and 1.30643 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.215892Jy  sigma=1.501609
! Fit after  self-cal, rms=0.215857Jy  sigma=1.501361
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0672499 Jy
! Total flux subtracted in 50 components = 0.0672499 Jy
! Clean residual min=-0.018785 max=0.044196 Jy/beam
! Clean residual mean=-0.000019 rms=0.004454 Jy/beam
! Combined flux in latest and established models = 1.37368 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 38 components and 1.37368 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.196088Jy  sigma=1.364014
! Fit after  self-cal, rms=0.196068Jy  sigma=1.363889
! Inverting map 
! Added new window around map position (-6, -4.4).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0509495 Jy
! Total flux subtracted in 50 components = 0.0509495 Jy
! Clean residual min=-0.018364 max=0.028897 Jy/beam
! Clean residual mean=-0.000013 rms=0.004149 Jy/beam
! Combined flux in latest and established models = 1.42463 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 45 components and 1.42463 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.185079Jy  sigma=1.287281
! Fit after  self-cal, rms=0.184981Jy  sigma=1.286613
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0386383 Jy
! Total flux subtracted in 50 components = 0.0386383 Jy
! Clean residual min=-0.017806 max=0.022288 Jy/beam
! Clean residual mean=-0.000010 rms=0.003962 Jy/beam
! Combined flux in latest and established models = 1.46327 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 13 model components to the UV plane model.
! The established model now contains 46 components and 1.46327 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.178806Jy  sigma=1.244033
! Fit after  self-cal, rms=0.178768Jy  sigma=1.243785
! 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=2.736 mas, bmaj=4.44 mas, bpa=-12.81 degrees
! Estimated noise=0.83232 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 = 0.0314263 Jy
! Component: 100  -  total flux cleaned = 0.0473827 Jy
! Total flux subtracted in 100 components = 0.0473827 Jy
! Clean residual min=-0.019698 max=0.014222 Jy/beam
! Clean residual mean=-0.000011 rms=0.003484 Jy/beam
! Combined flux in latest and established models = 1.51065 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 54 components and 1.51065 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.173422Jy  sigma=1.207292
! Fit after  self-cal, rms=0.173339Jy  sigma=1.206691
! 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 9 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.04     HN        1.00*    
!   KK        1.00*    KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        1.00*    NL        1.00*    NY        1.08     OV        1.00*    
!   PT        1.00*    SC        1.11     WF        0.84     GN        1.00*    
! 
!  A total of 69 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.99     FD        0.99     GC        1.03     HN        1.09     
!   KK        0.99     KP        1.09     LA        0.99     MC        1.35     
!   MK        1.03     NL        0.84     NY        1.05     OV        1.00     
!   PT        1.01     SC        1.03     WF        1.05     GN        0.95     
! 
!  A total of 12 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.98     FD        0.99     GC        0.99     HN        1.00     
!   KK        0.96     KP        1.12     LA        1.01     MC        1.00*    
!   MK        1.00*    NL        1.01     NY        1.00*    OV        1.00     
!   PT        1.00     SC        1.06     WF        1.00     GN        0.99     
! 
! 
! Correcting IF 2.
!  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        1.02     HN        1.00*    
!   KK        1.00*    KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        1.00*    NL        1.00*    NY        1.09     OV        1.00*    
!   PT        1.00*    SC        1.16     WF        0.90     GN        1.00*    
! 
!  A total of 60 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.99     FD        1.00     GC        1.03     HN        1.09     
!   KK        0.96     KP        1.14     LA        0.98     MC        1.23     
!   MK        1.00     NL        0.84     NY        1.04     OV        1.00     
!   PT        0.99     SC        1.02     WF        1.05     GN        0.94     
! 
!  A total of 12 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.99     FD        1.00     GC        0.99     HN        1.01     
!   KK        0.93     KP        1.15     LA        0.99     MC        1.00*    
!   MK        1.00*    NL        1.01     NY        1.00*    OV        1.01     
!   PT        1.00     SC        1.08     WF        1.01     GN        0.96     
! 
! 
! 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        1.00*    GC        1.04     HN        1.00*    
!   KK        1.00*    KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        1.00*    NL        1.00*    NY        1.07     OV        1.00*    
!   PT        1.00*    SC        1.11     WF        0.92     GN        1.00*    
! 
!  A total of 69 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.97     FD        0.95     GC        1.01     HN        1.01     
!   KK        0.95     KP        1.04     LA        0.98     MC        1.32     
!   MK        1.00     NL        0.82     NY        1.02     OV        0.97     
!   PT        0.98     SC        1.01     WF        1.04     GN        0.94     
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.96     FD        0.97     GC        0.97     HN        0.97     
!   KK        0.92     KP        1.06     LA        0.98     MC        1.00*    
!   MK        1.00*    NL        1.00     NY        1.00*    OV        0.98     
!   PT        0.98     SC        1.06     WF        1.00     GN        0.97     
! 
! 
! 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        0.99     HN        1.00*    
!   KK        1.00*    KP        1.00*    LA        1.00*    MC        1.00*    
!   MK        1.00*    NL        1.00*    NY        1.10     OV        1.00*    
!   PT        1.00*    SC        1.18     WF        0.76     GN        1.00*    
! 
!  A total of 69 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.97     FD        0.96     GC        1.01     HN        1.04     
!   KK        0.95     KP        1.11     LA        0.97     MC        1.16     
!   MK        0.98     NL        0.80     NY        1.00     OV        0.96     
!   PT        1.03     SC        1.00     WF        1.04     GN        0.93     
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.97     FD        0.98     GC        0.96     HN        0.96     
!   KK        0.92     KP        1.11     LA        0.97     MC        1.00*    
!   MK        1.00*    NL        0.98     NY        1.00*    OV        0.97     
!   PT        1.00     SC        1.05     WF        0.99     GN        0.96     
! 
! 
! Fit before self-cal, rms=0.173339Jy  sigma=1.206691
! Fit after  self-cal, rms=0.137853Jy  sigma=0.933315
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.804 mas, bmaj=4.45 mas, bpa=-12.76 degrees
! Estimated noise=0.845915 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 = 0.0152532 Jy
! Component: 100  -  total flux cleaned = 0.0145321 Jy
! Total flux subtracted in 100 components = 0.0145321 Jy
! Clean residual min=-0.008479 max=0.008561 Jy/beam
! Clean residual mean=0.000012 rms=0.001676 Jy/beam
! Combined flux in latest and established models = 1.52519 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 68 components and 1.52519 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.135905Jy  sigma=0.917877
! Fit after  self-cal, rms=0.135791Jy  sigma=0.916869
! 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 = 0.00175366 Jy
! Component: 100  -  total flux cleaned = 0.00199207 Jy
! Total flux subtracted in 100 components = 0.00199207 Jy
! Clean residual min=-0.008082 max=0.007427 Jy/beam
! Clean residual mean=0.000014 rms=0.001637 Jy/beam
! Combined flux in latest and established models = 1.52718 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 70 components and 1.52718 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.135345Jy  sigma=0.913521
! Fit after  self-cal, rms=0.121491Jy  sigma=0.798561
! Inverting map and beam 
! Estimated beam: bmin=2.804 mas, bmaj=4.466 mas, bpa=-13.07 degrees
! Estimated noise=0.848514 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 = -0.00263718 Jy
! Component: 100  -  total flux cleaned = -0.00306195 Jy
! Total flux subtracted in 100 components = -0.00306195 Jy
! Clean residual min=-0.004965 max=0.004234 Jy/beam
! Clean residual mean=0.000004 rms=0.000890 Jy/beam
! Combined flux in latest and established models = 1.52412 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 8 model components to the UV plane model.
! The established model now contains 77 components and 1.52412 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.121117Jy  sigma=0.795970
! Fit after  self-cal, rms=0.121108Jy  sigma=0.795874
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save OQ208_S
! Writing UV FITS file: OQ208_S.uvf
! Writing 77 model components to file: OQ208_S.mod
! wwins: Wrote 2 windows to OQ208_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.804 x 4.466 at -13.07 degrees (North through East)
! Clean map  min=-0.00323  max=1.1237 Jy/beam
! Writing clean map to FITS file: OQ208_S.fits
! Writing difmap environment to: OQ208_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
device OQ208_Suv.ps/vps,1,2
! Attempting to open device: 'OQ208_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device OQ208_Sim.ps/vps
! Attempting to open device: 'OQ208_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=2.804 mas, bmaj=4.466 mas, bpa=-13.07 degrees
! Estimated noise=0.848514 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.804 x 4.466 at -13.07 degrees (North through East)
! Clean map  min=-0.00323  max=1.1237 Jy/beam
quit
! Quitting program
! Log file OQ208_S.log closed on Fri Dec 20 08:13:16 2002