! Started logfile: 3C274_S.log on Wed Jul 25 20:39:08 2007
observe 3C274_S.edt
! Reading UV FITS file: 3C274_S.edt
! AN table 1: 110 integrations on 171 of 171 possible baselines.
! AN table 2: 54 integrations on 171 of 171 possible baselines.
! AN table 3: 90 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.0451029 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 3C274
! Warning: Unknown AN-table MNTSTA value (3).
!          Will assume that it is ground-based.
! Warning: Unknown AN-table MNTSTA value (3).
!          Will assume that it is ground-based.
! 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 7836 visibilities.
![@gonzo5-0.4 3C274_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 = 5.0
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 1977 telescope corrections were flagged in sub-array 1.
!  A total of 1020 telescope corrections were flagged in sub-array 2.
!  A total of 1575 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 1964 telescope corrections were flagged in sub-array 1.
!  A total of 1026 telescope corrections were flagged in sub-array 2.
!  A total of 1572 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 1966 telescope corrections were flagged in sub-array 1.
!  A total of 1020 telescope corrections were flagged in sub-array 2.
!  A total of 1599 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 1998 telescope corrections were flagged in sub-array 1.
!  A total of 1026 telescope corrections were flagged in sub-array 2.
!  A total of 1597 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.683967Jy  sigma=0.007740
! Fit after  self-cal, rms=0.691470Jy  sigma=0.007873
! 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=3.519 mas, bmaj=5.961 mas, bpa=0.9786 degrees
! Estimated noise=2682.59 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 = 0.866332 Jy
! Total flux subtracted in 50 components = 0.866332 Jy
! Clean residual min=-0.099669 max=0.310653 Jy/beam
! Clean residual mean=-0.001151 rms=0.035336 Jy/beam
! Combined flux in latest and established models = 0.866332 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 8 components and 0.866332 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.772451Jy  sigma=0.008882
! Fit after  self-cal, rms=0.772411Jy  sigma=0.008881
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.323726 Jy
! Total flux subtracted in 50 components = 0.323726 Jy
! Clean residual min=-0.056750 max=0.141503 Jy/beam
! Clean residual mean=-0.000891 rms=0.021583 Jy/beam
! Combined flux in latest and established models = 1.19006 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 18 components and 1.19006 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.551469Jy  sigma=0.006244
! Fit after  self-cal, rms=0.551386Jy  sigma=0.006242
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.161953 Jy
! Total flux subtracted in 50 components = 0.161953 Jy
! Clean residual min=-0.044975 max=0.107229 Jy/beam
! Clean residual mean=-0.000760 rms=0.017122 Jy/beam
! Combined flux in latest and established models = 1.35201 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 28 model components to the UV plane model.
! The established model now contains 44 components and 1.35201 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.459939Jy  sigma=0.005200
! Fit after  self-cal, rms=0.459782Jy  sigma=0.005197
! Inverting map 
! Added new window around map position (-6, -0.4).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.115213 Jy
! Total flux subtracted in 50 components = 0.115213 Jy
! Clean residual min=-0.041842 max=0.075752 Jy/beam
! Clean residual mean=-0.000659 rms=0.014628 Jy/beam
! Combined flux in latest and established models = 1.46722 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 64 components and 1.46722 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.402603Jy  sigma=0.004563
! Fit after  self-cal, rms=0.401860Jy  sigma=0.004554
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0853253 Jy
! Total flux subtracted in 50 components = 0.0853253 Jy
! Clean residual min=-0.039723 max=0.063243 Jy/beam
! Clean residual mean=-0.000583 rms=0.013031 Jy/beam
! Combined flux in latest and established models = 1.55255 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 84 components and 1.55255 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.363575Jy  sigma=0.004133
! Fit after  self-cal, rms=0.363134Jy  sigma=0.004129
! 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=5.026 mas, bmaj=8.49 mas, bpa=2.684 degrees
! Estimated noise=1484.99 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 = 0.174569 Jy
! Component: 100  -  total flux cleaned = 0.281338 Jy
! Total flux subtracted in 100 components = 0.281338 Jy
! Clean residual min=-0.074930 max=0.093678 Jy/beam
! Clean residual mean=-0.001280 rms=0.025126 Jy/beam
! Combined flux in latest and established models = 1.83389 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 50 model components to the UV plane model.
! The established model now contains 126 components and 1.83389 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.269493Jy  sigma=0.003110
! Fit after  self-cal, rms=0.265705Jy  sigma=0.003073
! 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 12 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.96     FD        1.01     GC        1.00*    GG        1.00*    
!   HN        1.02     KP        0.91     LA        0.94     MA        1.00*    
!   MK        1.00*    NL        1.13     NY        1.00     ON        1.00*    
!   OV        0.94     PT        0.86     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.26     WZ        1.00*    
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    GG        0.00*    
!   HN        0.00*    KP        0.00*    LA        0.00*    MA        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    TC        0.00*    
!   TS        0.00*    WF        0.00*    WZ        0.00*    
! 
!  A total of 15 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.96     FD        1.09     GC        1.00*    GG        1.00*    
!   HN        0.99     KP        0.96     LA        0.96     MA        1.00*    
!   MK        1.00*    NL        1.02     NY        1.19     ON        1.00*    
!   OV        1.11     PT        0.91     SC        0.97     TC        1.00*    
!   TS        1.00*    WF        1.28     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 15 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.01     FD        0.94     GC        1.00*    GG        1.00*    
!   HN        1.09     KP        0.96     LA        0.91     MA        1.00*    
!   MK        1.00*    NL        1.20     NY        1.06     ON        1.00*    
!   OV        0.98     PT        0.87     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.28     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    GG        0.00*    
!   HN        0.00*    KP        0.00*    LA        0.00*    MA        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    TC        0.00*    
!   TS        0.00*    WF        0.00*    WZ        0.00*    
! 
!  A total of 18 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.02     FD        1.01     GC        1.00*    GG        1.00*    
!   HN        1.03     KP        1.06     LA        0.89     MA        1.00*    
!   MK        1.00*    NL        1.09     NY        1.00     ON        1.00*    
!   OV        1.13     PT        0.93     SC        1.03     TC        1.00*    
!   TS        1.00*    WF        1.22     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 15 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.18     FD        0.88     GC        1.00*    GG        1.00*    
!   HN        1.08     KP        0.92     LA        0.80     MA        1.00*    
!   MK        1.00*    NL        1.11     NY        0.99     ON        1.00*    
!   OV        0.97     PT        0.92     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.36     WZ        1.00*    
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    GG        0.00*    
!   HN        0.00*    KP        0.00*    LA        0.00*    MA        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    TC        0.00*    
!   TS        0.00*    WF        0.00*    WZ        0.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.04     FD        1.01     GC        1.00*    GG        1.00*    
!   HN        1.00     KP        1.02     LA        0.85     MA        1.00*    
!   MK        1.00*    NL        1.07     NY        1.00*    ON        1.00*    
!   OV        1.10     PT        0.97     SC        1.17     TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 21 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.30     FD        0.88     GC        1.00*    GG        1.00*    
!   HN        0.92     KP        0.89     LA        0.92     MA        1.00*    
!   MK        1.00*    NL        1.08     NY        1.10     ON        1.00*    
!   OV        0.92     PT        0.91     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.39     WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.00*    FD        0.00*    GC        0.00*    GG        0.00*    
!   HN        0.00*    KP        0.00*    LA        0.00*    MA        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    TC        0.00*    
!   TS        0.00*    WF        0.00*    WZ        0.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.16     FD        0.94     GC        1.00*    GG        1.00*    
!   HN        0.98     KP        1.00     LA        0.91     MA        1.00*    
!   MK        1.00*    NL        0.99     NY        1.00*    ON        1.00*    
!   OV        0.95     PT        0.95     SC        1.14     TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.265705Jy  sigma=0.003073
! Fit after  self-cal, rms=0.179998Jy  sigma=0.002178
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=5.488 mas, bmaj=9.357 mas, bpa=7.266 degrees
! Estimated noise=1491.65 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 (0.4, -32.8).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0542435 Jy
! Component: 100  -  total flux cleaned = 0.0782729 Jy
! Total flux subtracted in 100 components = 0.0782729 Jy
! Clean residual min=-0.028349 max=0.033236 Jy/beam
! Clean residual mean=-0.000188 rms=0.008698 Jy/beam
! Combined flux in latest and established models = 1.91216 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 36 model components to the UV plane model.
! The established model now contains 161 components and 1.91216 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.165529Jy  sigma=0.001984
! Fit after  self-cal, rms=0.164204Jy  sigma=0.001968
! Inverting map 
! Added new window around map position (-18, 8.8).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0331407 Jy
! Component: 100  -  total flux cleaned = 0.0472488 Jy
! Total flux subtracted in 100 components = 0.0472488 Jy
! Clean residual min=-0.026180 max=0.029484 Jy/beam
! Clean residual mean=-0.000094 rms=0.007471 Jy/beam
! Combined flux in latest and established models = 1.95941 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 205 components and 1.95941 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.157692Jy  sigma=0.001890
! Fit after  self-cal, rms=0.156174Jy  sigma=0.001876
! 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 (26.8, 11.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0204763 Jy
! Component: 100  -  total flux cleaned = 0.0286975 Jy
! Total flux subtracted in 100 components = 0.0286975 Jy
! Clean residual min=-0.023745 max=0.019591 Jy/beam
! Clean residual mean=-0.000009 rms=0.006594 Jy/beam
! Combined flux in latest and established models = 1.98811 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 32 model components to the UV plane model.
! The established model now contains 236 components and 1.98811 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.151313Jy  sigma=0.001817
! Fit after  self-cal, rms=0.132957Jy  sigma=0.001579
! Inverting map and beam 
! Estimated beam: bmin=5.516 mas, bmaj=9.405 mas, bpa=7.332 degrees
! Estimated noise=1485.93 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 = 0.0204118 Jy
! Component: 100  -  total flux cleaned = 0.0318785 Jy
! Total flux subtracted in 100 components = 0.0318785 Jy
! Clean residual min=-0.018520 max=0.015517 Jy/beam
! Clean residual mean=-0.000021 rms=0.005081 Jy/beam
! Combined flux in latest and established models = 2.01998 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 39 model components to the UV plane model.
! The established model now contains 272 components and 2.01998 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.129781Jy  sigma=0.001540
! Fit after  self-cal, rms=0.129160Jy  sigma=0.001533
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 3C274_S
! Writing UV FITS file: 3C274_S.uvf
! Writing 272 model components to file: 3C274_S.mod
! wwins: Wrote 5 windows to 3C274_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 5.516 x 9.405 at 7.332 degrees (North through East)
! Clean map  min=-0.019559  max=1.2621 Jy/beam
! Writing clean map to FITS file: 3C274_S.fits
! Writing difmap environment to: 3C274_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 3C274_S]
device 3C274_Suv.ps/vps,1,2
! Attempting to open device: '3C274_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 3C274_Sim.ps/vps
! Attempting to open device: '3C274_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=5.516 mas, bmaj=9.405 mas, bpa=7.332 degrees
! Estimated noise=1485.93 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 5.516 x 9.405 at 7.332 degrees (North through East)
! Clean map  min=-0.019559  max=1.2621 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo5-0.4]
quit
! Quitting program
! Log file 3C274_S.log closed on Wed Jul 25 20:39:24 2007