! Started logfile: 1821+107_S.log on Wed May  7 15:59:59 2008
observe 1821+107_S.edt
! Reading UV FITS file: 1821+107_S.edt
! AN table 1: 33 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.0709051 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1821+107
! 
! 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 963 lines of history.
! 
! Reading 1432 visibilities.
![@gonzo7-0.4 1821+107_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 528 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 548 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 519 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 536 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.300826Jy  sigma=0.002660
! Fit after  self-cal, rms=0.300905Jy  sigma=0.002683
! 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=1.915 mas, bmaj=5.286 mas, bpa=-16.7 degrees
! Estimated noise=7554.5 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 = 0.553504 Jy
! Total flux subtracted in 50 components = 0.553504 Jy
! Clean residual min=-0.053881 max=0.154362 Jy/beam
! Clean residual mean=0.001269 rms=0.020620 Jy/beam
! Combined flux in latest and established models = 0.553504 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 0.553504 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.182168Jy  sigma=0.001580
! Fit after  self-cal, rms=0.182168Jy  sigma=0.001580
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.120842 Jy
! Total flux subtracted in 50 components = 0.120842 Jy
! Clean residual min=-0.027155 max=0.034242 Jy/beam
! Clean residual mean=0.000399 rms=0.007314 Jy/beam
! Combined flux in latest and established models = 0.674347 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 0.674347 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.096903Jy  sigma=0.000820
! Fit after  self-cal, rms=0.096857Jy  sigma=0.000819
! 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=2.141 mas, bmaj=5.54 mas, bpa=-17.56 degrees
! Estimated noise=4269.69 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 = 0.032715 Jy
! Component: 100  -  total flux cleaned = 0.0496426 Jy
! Total flux subtracted in 100 components = 0.0496426 Jy
! Clean residual min=-0.015305 max=0.014464 Jy/beam
! Clean residual mean=0.000069 rms=0.004767 Jy/beam
! Combined flux in latest and established models = 0.723989 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 11 components and 0.723989 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.085961Jy  sigma=0.000725
! Fit after  self-cal, rms=0.085968Jy  sigma=0.000725
! 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        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        0.99     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        1.00*    MK        1.00*    NL        0.98     NY        1.01     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00     
!   WF        0.97     WZ        1.01     
! 
! 
! Correcting IF 2.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        1.00     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        1.00     MK        1.00*    NL        0.98     NY        1.01     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.01     
!   WF        0.99     WZ        0.99     
! 
! 
! Correcting IF 3.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        1.00     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        1.03     MK        1.00*    NL        0.97     NY        1.01     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        0.98     
!   WF        1.04     WZ        0.97     
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        0.98     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        0.94     MK        1.00*    NL        0.98     NY        1.00     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.02     
!   WF        1.02     WZ        0.98     
! 
! 
! Fit before self-cal, rms=0.085968Jy  sigma=0.000725
! Fit after  self-cal, rms=0.082629Jy  sigma=0.000709
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.151 mas, bmaj=5.556 mas, bpa=-17.45 degrees
! Estimated noise=4276.8 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 = 0.00954109 Jy
! Component: 100  -  total flux cleaned = 0.014666 Jy
! Total flux subtracted in 100 components = 0.014666 Jy
! Clean residual min=-0.010698 max=0.007721 Jy/beam
! Clean residual mean=-0.000516 rms=0.002597 Jy/beam
! Combined flux in latest and established models = 0.738655 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 17 components and 0.738655 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.081699Jy  sigma=0.000699
! Fit after  self-cal, rms=0.081689Jy  sigma=0.000699
! 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 = 0.00365138 Jy
! Component: 100  -  total flux cleaned = 0.00620431 Jy
! Total flux subtracted in 100 components = 0.00620431 Jy
! Clean residual min=-0.010056 max=0.007804 Jy/beam
! Clean residual mean=-0.000644 rms=0.002411 Jy/beam
! Combined flux in latest and established models = 0.744859 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 5 model components to the UV plane model.
! The established model now contains 18 components and 0.74486 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.081534Jy  sigma=0.000698
! Fit after  self-cal, rms=0.078505Jy  sigma=0.000671
! Inverting map and beam 
! Estimated beam: bmin=2.149 mas, bmaj=5.555 mas, bpa=-17.42 degrees
! Estimated noise=4273.46 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 = 0.00290199 Jy
! Component: 100  -  total flux cleaned = 0.00464437 Jy
! Total flux subtracted in 100 components = 0.00464437 Jy
! Clean residual min=-0.009919 max=0.007810 Jy/beam
! Clean residual mean=-0.000576 rms=0.002374 Jy/beam
! Combined flux in latest and established models = 0.749504 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 23 components and 0.749504 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.078439Jy  sigma=0.000670
! Fit after  self-cal, rms=0.078453Jy  sigma=0.000670
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1821+107_S
! Writing UV FITS file: 1821+107_S.uvf
! Writing 23 model components to file: 1821+107_S.mod
! wwins: Wrote 1 windows to 1821+107_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.149 x 5.555 at -17.42 degrees (North through East)
! Clean map  min=-0.0095832  max=0.7097 Jy/beam
! Writing clean map to FITS file: 1821+107_S.fits
! Writing difmap environment to: 1821+107_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1821+107_S]
device 1821+107_Suv.ps/vps,1,2
! Attempting to open device: '1821+107_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1821+107_Sim.ps/vps
! Attempting to open device: '1821+107_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=2.149 mas, bmaj=5.555 mas, bpa=-17.42 degrees
! Estimated noise=4273.46 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.149 x 5.555 at -17.42 degrees (North through East)
! Clean map  min=-0.0095832  max=0.7097 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 1821+107_S.log closed on Wed May  7 16:00:03 2008