! Started logfile: 0454+844_S.log on Thu Aug 11 16:17:22 2005
observe 0454+844_S.edt
! Reading UV FITS file: 0454+844_S.edt
! AN table 1: 61 integrations on 171 of 171 possible baselines.
! AN table 2: 98 integrations on 171 of 171 possible baselines.
! AN table 3: 86 integrations on 171 of 171 possible baselines.
! AN table 4: 51 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.259977 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0454+844
! 
! 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 1565 lines of history.
! 
! Reading 52636 visibilities.
![@gonzo7-0.4 0454+844_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 851 telescope corrections were flagged in sub-array 1.
!  A total of 1173 telescope corrections were flagged in sub-array 2.
!  A total of 959 telescope corrections were flagged in sub-array 3.
!  A total of 628 telescope corrections were flagged in sub-array 4.
! 
! Correcting IF 2.
!  A total of 851 telescope corrections were flagged in sub-array 1.
!  A total of 1175 telescope corrections were flagged in sub-array 2.
!  A total of 956 telescope corrections were flagged in sub-array 3.
!  A total of 628 telescope corrections were flagged in sub-array 4.
! 
! Correcting IF 3.
!  A total of 853 telescope corrections were flagged in sub-array 1.
!  A total of 1172 telescope corrections were flagged in sub-array 2.
!  A total of 953 telescope corrections were flagged in sub-array 3.
!  A total of 631 telescope corrections were flagged in sub-array 4.
! 
! Correcting IF 4.
!  A total of 856 telescope corrections were flagged in sub-array 1.
!  A total of 1175 telescope corrections were flagged in sub-array 2.
!  A total of 959 telescope corrections were flagged in sub-array 3.
!  A total of 628 telescope corrections were flagged in sub-array 4.
! 
! Fit before self-cal, rms=0.814362Jy  sigma=0.012641
! Fit after  self-cal, rms=0.813636Jy  sigma=0.012635
! 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=2.296 mas, bmaj=2.872 mas, bpa=59.45 degrees
! Estimated noise=587.025 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 = 0.140569 Jy
! Total flux subtracted in 50 components = 0.140569 Jy
! Clean residual min=-0.006157 max=0.039449 Jy/beam
! Clean residual mean=-0.000024 rms=0.001555 Jy/beam
! Combined flux in latest and established models = 0.140569 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 0.140569 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.097077Jy  sigma=0.001465
! Fit after  self-cal, rms=0.097074Jy  sigma=0.001465
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0354956 Jy
! Total flux subtracted in 50 components = 0.0354956 Jy
! Clean residual min=-0.003631 max=0.013631 Jy/beam
! Clean residual mean=-0.000009 rms=0.000921 Jy/beam
! Combined flux in latest and established models = 0.176064 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 0.176064 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.083960Jy  sigma=0.001253
! Fit after  self-cal, rms=0.083929Jy  sigma=0.001252
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0135205 Jy
! Total flux subtracted in 50 components = 0.0135205 Jy
! Clean residual min=-0.003006 max=0.005397 Jy/beam
! Clean residual mean=-0.000004 rms=0.000791 Jy/beam
! Combined flux in latest and established models = 0.189585 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 6 model components to the UV plane model.
! The established model now contains 11 components and 0.189585 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.081677Jy  sigma=0.001216
! Fit after  self-cal, rms=0.081660Jy  sigma=0.001216
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00590284 Jy
! Total flux subtracted in 50 components = 0.00590284 Jy
! Clean residual min=-0.003008 max=0.002995 Jy/beam
! Clean residual mean=-0.000002 rms=0.000766 Jy/beam
! Combined flux in latest and established models = 0.195488 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 17 components and 0.195488 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.081174Jy  sigma=0.001208
! Fit after  self-cal, rms=0.081168Jy  sigma=0.001208
! 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=3.276 mas, bmaj=3.736 mas, bpa=46.47 degrees
! Estimated noise=263.468 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 (-0.8, -2.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0054685 Jy
! Component: 100  -  total flux cleaned = 0.00770766 Jy
! Total flux subtracted in 100 components = 0.00770766 Jy
! Clean residual min=-0.002706 max=0.002659 Jy/beam
! Clean residual mean=0.000021 rms=0.000671 Jy/beam
! Combined flux in latest and established models = 0.203195 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 43 components and 0.203195 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.080833Jy  sigma=0.001203
! Fit after  self-cal, rms=0.080826Jy  sigma=0.001203
! 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 21 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.02     FD        1.01     GC        1.03     HH        1.00*    
!   HN        0.97     KK        1.00*    KP        0.98     LA        0.98     
!   MC        1.00*    MK        1.04     NL        0.99     NY        1.07     
!   ON        1.00*    OV        1.00     PT        0.99     SC        1.00*    
!   TS        1.00*    WF        0.94     WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.01     FD        1.00     GC        1.00*    HH        1.00*    
!   HN        1.01     KK        1.00*    KP        1.00     LA        1.04     
!   MC        1.00*    MK        0.92     NL        1.01     NY        1.00*    
!   ON        1.00*    OV        1.05     PT        1.03     SC        1.02     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.00     FD        0.96     GC        1.00*    HH        1.00*    
!   HN        0.95     KK        1.02     KP        0.90     LA        0.95     
!   MC        1.00*    MK        0.97     NL        0.98     NY        1.00*    
!   ON        1.00*    OV        0.94     PT        0.98     SC        0.95     
!   TS        0.99     WF        1.00*    WZ        1.00*    
! 
!  A total of 3 telescope corrections were flagged in sub-array 4.
!  Telescope amplitude corrections in sub-array 4:
!   BR        0.92     FD        1.01     GC        1.00*    HH        1.00*    
!   HN        0.90     KK        1.00*    KP        0.87     LA        0.92     
!   MC        1.00*    MK        1.00*    NL        0.89     NY        1.00*    
!   ON        1.00*    OV        0.98     PT        0.97     SC        0.91     
!   TS        1.00*    WF        1.00*    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        0.99     FD        0.94     GC        0.98     HH        1.00*    
!   HN        1.03     KK        1.00*    KP        0.99     LA        1.05     
!   MC        1.00*    MK        0.99     NL        0.96     NY        1.06     
!   ON        1.00*    OV        1.00     PT        1.04     SC        1.00*    
!   TS        1.00*    WF        0.94     WZ        1.00*    
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.02     FD        1.05     GC        1.00*    HH        1.00*    
!   HN        1.01     KK        1.00*    KP        0.98     LA        1.00     
!   MC        1.00*    MK        0.98     NL        1.03     NY        1.00*    
!   ON        1.00*    OV        1.05     PT        1.02     SC        1.00     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.97     FD        0.96     GC        1.00*    HH        1.00*    
!   HN        0.99     KK        1.03     KP        0.95     LA        0.94     
!   MC        1.00*    MK        0.99     NL        0.99     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.97     SC        1.02     
!   TS        1.00     WF        1.00*    WZ        1.00*    
! 
!  A total of 3 telescope corrections were flagged in sub-array 4.
!  Telescope amplitude corrections in sub-array 4:
!   BR        0.90     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        0.95     KK        1.00*    KP        0.89     LA        0.98     
!   MC        1.00*    MK        1.00*    NL        0.95     NY        1.00*    
!   ON        1.00*    OV        0.90     PT        0.88     SC        1.05     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 12 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.03     FD        1.00     GC        0.98     HH        1.00*    
!   HN        1.04     KK        1.00*    KP        1.03     LA        1.12     
!   MC        1.00*    MK        0.95     NL        1.03     NY        1.01     
!   ON        1.00*    OV        1.02     PT        0.99     SC        1.00*    
!   TS        1.00*    WF        0.80     WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.10     FD        1.01     GC        1.00*    HH        1.00*    
!   HN        0.98     KK        1.00*    KP        1.04     LA        1.28     
!   MC        1.00*    MK        0.91     NL        1.07     NY        1.00*    
!   ON        1.00*    OV        1.02     PT        1.02     SC        0.99     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 15 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.95     FD        0.96     GC        1.00*    HH        1.00*    
!   HN        0.97     KK        1.08     KP        0.94     LA        1.07     
!   MC        1.00*    MK        0.98     NL        1.01     NY        1.00*    
!   ON        1.00*    OV        0.97     PT        0.97     SC        1.14     
!   TS        1.02     WF        1.00*    WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 4:
!   BR        0.96     FD        1.03     GC        1.00*    HH        1.00*    
!   HN        1.21     KK        1.00*    KP        0.97     LA        1.41     
!   MC        1.00*    MK        1.00*    NL        0.99     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.96     SC        1.17     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 9 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.03     FD        1.04     GC        0.94     HH        1.00*    
!   HN        0.99     KK        1.00*    KP        0.99     LA        1.01     
!   MC        1.00*    MK        1.03     NL        1.01     NY        0.92     
!   ON        1.00*    OV        0.99     PT        1.01     SC        1.00*    
!   TS        1.00*    WF        0.82     WZ        1.00*    
! 
!  A total of 6 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.09     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        1.02     KK        1.00*    KP        1.07     LA        0.98     
!   MC        1.00*    MK        0.91     NL        1.04     NY        1.00*    
!   ON        1.00*    OV        1.02     PT        1.01     SC        1.03     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.95     FD        0.95     GC        1.00*    HH        1.00*    
!   HN        0.99     KK        1.07     KP        0.98     LA        0.96     
!   MC        1.00*    MK        1.00     NL        0.96     NY        1.00*    
!   ON        1.00*    OV        0.98     PT        0.98     SC        1.17     
!   TS        1.00     WF        1.00*    WZ        1.00*    
! 
!  A total of 3 telescope corrections were flagged in sub-array 4.
!  Telescope amplitude corrections in sub-array 4:
!   BR        0.94     FD        0.87     GC        1.00*    HH        1.00*    
!   HN        1.10     KK        1.00*    KP        1.01     LA        0.81     
!   MC        1.00*    MK        1.00*    NL        1.01     NY        1.00*    
!   ON        1.00*    OV        0.96     PT        0.95     SC        1.25     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.080826Jy  sigma=0.001203
! Fit after  self-cal, rms=0.078807Jy  sigma=0.001168
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.286 mas, bmaj=3.747 mas, bpa=47.38 degrees
! Estimated noise=262.388 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 = 0.000249466 Jy
! Component: 100  -  total flux cleaned = 0.000220175 Jy
! Total flux subtracted in 100 components = 0.000220175 Jy
! Clean residual min=-0.001423 max=0.001261 Jy/beam
! Clean residual mean=-0.000009 rms=0.000329 Jy/beam
! Combined flux in latest and established models = 0.203415 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 51 components and 0.203415 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.078789Jy  sigma=0.001168
! Fit after  self-cal, rms=0.078795Jy  sigma=0.001168
! 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 = 2.20444e-05 Jy
! Component: 100  -  total flux cleaned = -5.12359e-05 Jy
! Total flux subtracted in 100 components = -5.12358e-05 Jy
! Clean residual min=-0.001426 max=0.001277 Jy/beam
! Clean residual mean=-0.000009 rms=0.000328 Jy/beam
! Combined flux in latest and established models = 0.203364 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 11 model components to the UV plane model.
! The established model now contains 56 components and 0.203364 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.078786Jy  sigma=0.001168
! Fit after  self-cal, rms=0.078263Jy  sigma=0.001151
! Inverting map and beam 
! Estimated beam: bmin=3.284 mas, bmaj=3.751 mas, bpa=47.1 degrees
! Estimated noise=263.191 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 = 0.000348714 Jy
! Component: 100  -  total flux cleaned = 0.000256444 Jy
! Total flux subtracted in 100 components = 0.000256444 Jy
! Clean residual min=-0.001385 max=0.001280 Jy/beam
! Clean residual mean=-0.000012 rms=0.000316 Jy/beam
! Combined flux in latest and established models = 0.203621 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 60 components and 0.203621 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.078254Jy  sigma=0.001151
! Fit after  self-cal, rms=0.078257Jy  sigma=0.001151
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0454+844_S
! Writing UV FITS file: 0454+844_S.uvf
! Writing 60 model components to file: 0454+844_S.mod
! wwins: Wrote 2 windows to 0454+844_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.284 x 3.751 at 47.1 degrees (North through East)
! Clean map  min=-0.0013484  max=0.18571 Jy/beam
! Writing clean map to FITS file: 0454+844_S.fits
! Writing difmap environment to: 0454+844_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 0454+844_S]
device 0454+844_Suv.ps/vps,1,2
! Attempting to open device: '0454+844_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0454+844_Sim.ps/vps
! Attempting to open device: '0454+844_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=3.284 mas, bmaj=3.751 mas, bpa=47.1 degrees
! Estimated noise=263.191 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.284 x 3.751 at 47.1 degrees (North through East)
! Clean map  min=-0.0013484  max=0.18571 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 0454+844_S.log closed on Thu Aug 11 16:18:04 2005