! Started logfile: CTA26_S.log on Wed Jul 25 20:52:47 2007
observe CTA26_S.edt
! Reading UV FITS file: CTA26_S.edt
! AN table 1: 80 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.0682018 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: CTA26
! Warning: Unknown AN-table MNTSTA value (3).
!          Will assume that it is ground-based.
! 
! 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  2.23697e+09        8e+06          1        8e+06
!  02        2  2.26697e+09        8e+06          1        8e+06
!  03        3  2.35697e+09        8e+06          1        8e+06
!  04        4  2.37697e+09        8e+06          1        8e+06
! 
! Polarization(s): RR
! 
! Read 1332 lines of history.
! 
! Reading 3732 visibilities.
![@gonzo7-0.4 CTA26_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 1427 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 1402 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 1424 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 1451 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=1.081058Jy  sigma=0.016062
! Fit after  self-cal, rms=1.085716Jy  sigma=0.016149
! 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=2.936 mas, bmaj=5.574 mas, bpa=4.086 degrees
! Estimated noise=2490.92 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 = 1.52412 Jy
! Total flux subtracted in 50 components = 1.52412 Jy
! Clean residual min=-0.118543 max=0.425053 Jy/beam
! Clean residual mean=0.000187 rms=0.046991 Jy/beam
! Combined flux in latest and established models = 1.52412 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 1.52412 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.635485Jy  sigma=0.009609
! Fit after  self-cal, rms=0.635484Jy  sigma=0.009609
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.399264 Jy
! Total flux subtracted in 50 components = 0.399264 Jy
! Clean residual min=-0.081721 max=0.165646 Jy/beam
! Clean residual mean=0.000150 rms=0.026393 Jy/beam
! Combined flux in latest and established models = 1.92338 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 12 components and 1.92338 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.375755Jy  sigma=0.005550
! Fit after  self-cal, rms=0.375357Jy  sigma=0.005546
! 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=3.397 mas, bmaj=7.311 mas, bpa=0.3244 degrees
! Estimated noise=1586.81 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 = 0.222763 Jy
! Component: 100  -  total flux cleaned = 0.319055 Jy
! Total flux subtracted in 100 components = 0.319055 Jy
! Clean residual min=-0.059085 max=0.077756 Jy/beam
! Clean residual mean=0.000318 rms=0.018479 Jy/beam
! Combined flux in latest and established models = 2.24244 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 23 model components to the UV plane model.
! The established model now contains 32 components and 2.24244 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.268597Jy  sigma=0.003487
! Fit after  self-cal, rms=0.267675Jy  sigma=0.003477
! 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        1.08     GC        0.97     GG        1.00*    
!   HN        0.98     KP        0.89     LA        1.00     MA        1.00*    
!   MK        0.87     NL        0.94     NY        1.00*    ON        1.00*    
!   OV        0.92     PT        0.98     SC        0.95     TC        1.00*    
!   TS        1.00*    WF        1.24     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 9 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.07     FD        1.01     GC        0.97     GG        1.00*    
!   HN        0.98     KP        0.96     LA        0.97     MA        1.00*    
!   MK        1.07     NL        0.98     NY        1.00*    ON        1.00*    
!   OV        0.99     PT        0.97     SC        0.98     TC        1.00*    
!   TS        1.00*    WF        1.24     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.27     FD        0.94     GC        1.07     GG        1.00*    
!   HN        1.00     KP        0.93     LA        0.78     MA        1.00*    
!   MK        1.02     NL        1.01     NY        1.00*    ON        1.00*    
!   OV        0.96     PT        1.01     SC        1.12     TC        1.00*    
!   TS        1.00*    WF        1.38     WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.98     FD        0.86     GC        1.15     GG        1.00*    
!   HN        1.00*    KP        0.96     LA        1.00*    MA        1.00*    
!   MK        0.95     NL        0.95     NY        1.00*    ON        1.00*    
!   OV        0.86     PT        0.96     SC        1.14     TC        1.00*    
!   TS        1.00*    WF        1.43     WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.267675Jy  sigma=0.003477
! Fit after  self-cal, rms=0.117230Jy  sigma=0.001374
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.457 mas, bmaj=7.478 mas, bpa=-0.01078 degrees
! Estimated noise=1572.8 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)
! Added new window around map position (6.8, 6).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.017615 Jy
! Component: 100  -  total flux cleaned = 0.0185265 Jy
! Total flux subtracted in 100 components = 0.0185265 Jy
! Clean residual min=-0.012940 max=0.010935 Jy/beam
! Clean residual mean=0.000005 rms=0.002744 Jy/beam
! Combined flux in latest and established models = 2.26096 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 47 components and 2.26096 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.113802Jy  sigma=0.001328
! Fit after  self-cal, rms=0.113280Jy  sigma=0.001323
! 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 = -0.00114306 Jy
! Component: 100  -  total flux cleaned = -0.0014173 Jy
! Total flux subtracted in 100 components = -0.0014173 Jy
! Clean residual min=-0.012052 max=0.009495 Jy/beam
! Clean residual mean=0.000006 rms=0.002580 Jy/beam
! Combined flux in latest and established models = 2.25955 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 21 model components to the UV plane model.
! The established model now contains 60 components and 2.25955 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.112235Jy  sigma=0.001311
! Fit after  self-cal, rms=0.104840Jy  sigma=0.001241
! Inverting map and beam 
! Estimated beam: bmin=3.452 mas, bmaj=7.472 mas, bpa=-0.0488 degrees
! Estimated noise=1569.89 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 = 0.00472542 Jy
! Component: 100  -  total flux cleaned = 0.00426061 Jy
! Total flux subtracted in 100 components = 0.00426061 Jy
! Clean residual min=-0.010816 max=0.008230 Jy/beam
! Clean residual mean=0.000015 rms=0.002278 Jy/beam
! Combined flux in latest and established models = 2.26381 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 72 components and 2.26381 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.104023Jy  sigma=0.001233
! Fit after  self-cal, rms=0.103803Jy  sigma=0.001231
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save CTA26_S
! Writing UV FITS file: CTA26_S.uvf
! Writing 72 model components to file: CTA26_S.mod
! wwins: Wrote 2 windows to CTA26_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.452 x 7.472 at -0.0488 degrees (North through East)
! Clean map  min=-0.010491  max=1.973 Jy/beam
! Writing clean map to FITS file: CTA26_S.fits
! Writing difmap environment to: CTA26_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot CTA26_S]
device CTA26_Suv.ps/vps,1,2
! Attempting to open device: 'CTA26_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device CTA26_Sim.ps/vps
! Attempting to open device: 'CTA26_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=3.452 mas, bmaj=7.472 mas, bpa=-0.0488 degrees
! Estimated noise=1569.89 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.452 x 7.472 at -0.0488 degrees (North through East)
! Clean map  min=-0.010491  max=1.973 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file CTA26_S.log closed on Wed Jul 25 20:52:55 2007