! Started logfile: 1921-293_X.log on Wed May 14 16:05:33 2008
observe 1921-293_X.edt
! Reading UV FITS file: 1921-293_X.edt
! AN table 1: 7 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.0756303 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1921-293
! 
! 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 938 lines of history.
! 
! Reading 324 visibilities.
![@gonzo6-0.1-pw 1921-293_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 = 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 0.100x0.100 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 110 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 107 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 112 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 112 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=6.911978Jy  sigma=0.081904
! Fit after  self-cal, rms=6.911966Jy  sigma=0.081904
! 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
peakw win_mult
! Inverting map and beam 
! Estimated beam: bmin=1.152 mas, bmaj=4.82 mas, bpa=-13.27 degrees
! Estimated noise=5795.03 mJy/beam.
! Added new window around map position (0, 0).
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=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 5.8971 Jy
! Total flux subtracted in 50 components = 5.8971 Jy
! Clean residual min=-0.597340 max=1.645431 Jy/beam
! Clean residual mean=-0.013976 rms=0.280477 Jy/beam
! Combined flux in latest and established models = 5.8971 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 5.8971 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=2.332712Jy  sigma=0.027792
! Fit after  self-cal, rms=2.332652Jy  sigma=0.027792
! 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=1.748 mas, bmaj=6.834 mas, bpa=-8.269 degrees
! Estimated noise=4535.56 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 = 1.64606 Jy
! Component: 100  -  total flux cleaned = 2.27022 Jy
! Total flux subtracted in 100 components = 2.27022 Jy
! Clean residual min=-0.282928 max=0.543648 Jy/beam
! Clean residual mean=-0.003781 rms=0.138257 Jy/beam
! Combined flux in latest and established models = 8.16732 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 44 model components to the UV plane model.
! The established model now contains 45 components and 8.16732 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=1.088630Jy  sigma=0.011501
! Fit after  self-cal, rms=1.080154Jy  sigma=0.011399
! Inverting map 
print "****************************************"
! **************************************** 
print "*** Finished Natural Weighting CLEAN ***"
! *** Finished Natural Weighting CLEAN *** 
print "****************************************"
! **************************************** 
gscale true
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.03     FD        0.93     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        0.98     LA        0.98     
!   MC        1.00*    MK        1.00*    NL        0.98     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.90     SC        1.00*    
!   WF        1.25     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.03     FD        0.92     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        0.99     LA        0.99     
!   MC        1.00*    MK        1.00*    NL        0.97     NY        1.00*    
!   ON        1.00*    OV        0.98     PT        0.93     SC        1.00*    
!   WF        1.22     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.06     FD        0.94     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.01     LA        0.99     
!   MC        1.00*    MK        1.00*    NL        0.96     NY        1.00*    
!   ON        1.00*    OV        1.00     PT        0.92     SC        1.00*    
!   WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.05     FD        0.92     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.00     LA        0.99     
!   MC        1.00*    MK        1.00*    NL        0.97     NY        1.00*    
!   ON        1.00*    OV        1.00     PT        0.94     SC        1.00*    
!   WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=1.080154Jy  sigma=0.011399
! Fit after  self-cal, rms=0.848756Jy  sigma=0.009136
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=2.027 mas, bmaj=8.495 mas, bpa=-4.884 degrees
! Estimated noise=4429.79 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 = 0.146654 Jy
! Component: 100  -  total flux cleaned = 0.146796 Jy
! Total flux subtracted in 100 components = 0.146796 Jy
! Clean residual min=-0.185334 max=0.446158 Jy/beam
! Clean residual mean=0.001171 rms=0.099222 Jy/beam
! Combined flux in latest and established models = 8.31412 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 26 model components to the UV plane model.
! The established model now contains 71 components and 8.31412 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.819589Jy  sigma=0.008622
! Fit after  self-cal, rms=0.816173Jy  sigma=0.008595
! 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)
! Added new window around map position (4.5, 8.3).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.427529 Jy
! Component: 100  -  total flux cleaned = 0.606028 Jy
! Total flux subtracted in 100 components = 0.606028 Jy
! Clean residual min=-0.156456 max=0.158717 Jy/beam
! Clean residual mean=0.000703 rms=0.051696 Jy/beam
! Combined flux in latest and established models = 8.92015 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 68 model components to the UV plane model.
! The established model now contains 139 components and 8.92015 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.612698Jy  sigma=0.005110
! Fit after  self-cal, rms=0.599133Jy  sigma=0.004736
! Inverting map and beam 
! Estimated beam: bmin=2.018 mas, bmaj=8.516 mas, bpa=-4.96 degrees
! Estimated noise=4428.67 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 = 0.129188 Jy
! Component: 100  -  total flux cleaned = 0.165053 Jy
! Total flux subtracted in 100 components = 0.165053 Jy
! Clean residual min=-0.100873 max=0.119573 Jy/beam
! Clean residual mean=-0.000007 rms=0.036383 Jy/beam
! Combined flux in latest and established models = 9.0852 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 48 model components to the UV plane model.
! The established model now contains 185 components and 9.0852 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.560431Jy  sigma=0.004055
! Fit after  self-cal, rms=0.556757Jy  sigma=0.003987
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1921-293_X
! Writing UV FITS file: 1921-293_X.uvf
! Writing 185 model components to file: 1921-293_X.mod
! wwins: Wrote 2 windows to 1921-293_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.018 x 8.516 at -4.96 degrees (North through East)
! Clean map  min=-0.09871  max=7.6058 Jy/beam
! Writing clean map to FITS file: 1921-293_X.fits
! Writing difmap environment to: 1921-293_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1921-293_X]
device 1921-293_Xuv.ps/vps,1,2
! Attempting to open device: '1921-293_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1921-293_Xim.ps/vps
! Attempting to open device: '1921-293_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=2.018 mas, bmaj=8.516 mas, bpa=-4.96 degrees
! Estimated noise=4428.67 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.018 x 8.516 at -4.96 degrees (North through East)
! Clean map  min=-0.09871  max=7.6058 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo6-0.1-pw]
quit
! Quitting program
! Log file 1921-293_X.log closed on Wed May 14 16:05:40 2008