! Started logfile: 1504-166_S.log on Tue Aug 16 18:11:08 2005
observe 1504-166_S.edt
! Reading UV FITS file: 1504-166_S.edt
! AN table 1: 11 integrations on 171 of 171 possible baselines.
! AN table 2: 72 integrations on 171 of 171 possible baselines.
! AN table 3: 16 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.0818713 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1504-166
! 
! 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 5544 visibilities.
![@gonzo7-0.4 1504-166_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 129 telescope corrections were flagged in sub-array 1.
!  A total of 1280 telescope corrections were flagged in sub-array 2.
!  A total of 218 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 129 telescope corrections were flagged in sub-array 1.
!  A total of 1280 telescope corrections were flagged in sub-array 2.
!  A total of 218 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 132 telescope corrections were flagged in sub-array 1.
!  A total of 1283 telescope corrections were flagged in sub-array 2.
!  A total of 232 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 129 telescope corrections were flagged in sub-array 1.
!  A total of 1291 telescope corrections were flagged in sub-array 2.
!  A total of 218 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=1.055333Jy  sigma=0.015395
! Fit after  self-cal, rms=1.058449Jy  sigma=0.015495
! 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=2.223 mas, bmaj=4.901 mas, bpa=21.13 degrees
! Estimated noise=1409.33 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 = 1.45132 Jy
! Total flux subtracted in 50 components = 1.45132 Jy
! Clean residual min=-0.100810 max=0.445460 Jy/beam
! Clean residual mean=0.000934 rms=0.035052 Jy/beam
! Combined flux in latest and established models = 1.45132 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 3 model components to the UV plane model.
! The established model now contains 3 components and 1.45132 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.645864Jy  sigma=0.009514
! Fit after  self-cal, rms=0.645843Jy  sigma=0.009514
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.413262 Jy
! Total flux subtracted in 50 components = 0.413262 Jy
! Clean residual min=-0.057467 max=0.167189 Jy/beam
! Clean residual mean=0.000379 rms=0.017271 Jy/beam
! Combined flux in latest and established models = 1.86458 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 18 model components to the UV plane model.
! The established model now contains 18 components and 1.86458 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.318223Jy  sigma=0.004719
! Fit after  self-cal, rms=0.318215Jy  sigma=0.004719
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.180202 Jy
! Total flux subtracted in 50 components = 0.180202 Jy
! Clean residual min=-0.039411 max=0.089796 Jy/beam
! Clean residual mean=0.000133 rms=0.011324 Jy/beam
! Combined flux in latest and established models = 2.04478 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 27 components and 2.04478 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.210167Jy  sigma=0.003065
! Fit after  self-cal, rms=0.210143Jy  sigma=0.003064
! Inverting map 
! Added new window around map position (-0.8, 5.6).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0988266 Jy
! Total flux subtracted in 50 components = 0.0988266 Jy
! Clean residual min=-0.033420 max=0.058141 Jy/beam
! Clean residual mean=-0.000002 rms=0.008762 Jy/beam
! Combined flux in latest and established models = 2.14361 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 14 model components to the UV plane model.
! The established model now contains 38 components and 2.14361 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.170320Jy  sigma=0.002405
! Fit after  self-cal, rms=0.170140Jy  sigma=0.002402
! 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=3.436 mas, bmaj=6.547 mas, bpa=13.19 degrees
! Estimated noise=905.633 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 = 0.0625964 Jy
! Component: 100  -  total flux cleaned = 0.0915361 Jy
! Total flux subtracted in 100 components = 0.0915361 Jy
! Clean residual min=-0.018659 max=0.018663 Jy/beam
! Clean residual mean=-0.000057 rms=0.004965 Jy/beam
! Combined flux in latest and established models = 2.23515 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 22 model components to the UV plane model.
! The established model now contains 54 components and 2.23515 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.152561Jy  sigma=0.002067
! Fit after  self-cal, rms=0.152548Jy  sigma=0.002066
! 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        1.00*    FD        0.97     GC        1.00*    HH        1.12     
!   HN        0.99     KK        1.00*    KP        1.04     LA        0.98     
!   MC        1.00*    MK        1.00*    NL        0.98     NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        0.99     SC        0.91     
!   TS        1.00*    WF        1.00     WZ        1.00*    
! 
!  A total of 15 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.97     FD        0.96     GC        1.00*    HH        1.00*    
!   HN        0.96     KK        1.00*    KP        0.99     LA        0.97     
!   MC        1.00*    MK        1.06     NL        0.97     NY        1.00*    
!   ON        1.00*    OV        0.99     PT        0.97     SC        0.99     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.96     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.08     LA        0.99     
!   MC        1.00*    MK        0.91     NL        1.03     NY        1.00*    
!   ON        1.00*    OV        1.01     PT        1.01     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.97     GC        1.00*    HH        1.10     
!   HN        1.02     KK        1.00*    KP        0.98     LA        1.00     
!   MC        1.00*    MK        1.00*    NL        0.98     NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        0.99     SC        0.98     
!   TS        1.00*    WF        1.00     WZ        1.00*    
! 
!  A total of 15 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.99     FD        0.99     GC        1.00*    HH        1.00*    
!   HN        1.00     KK        1.00*    KP        0.99     LA        0.97     
!   MC        1.00*    MK        1.04     NL        0.98     NY        1.00*    
!   ON        1.00*    OV        0.97     PT        0.98     SC        1.13     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.99     FD        1.01     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        0.98     LA        0.99     
!   MC        1.00*    MK        0.98     NL        1.04     NY        1.00*    
!   ON        1.00*    OV        1.02     PT        0.99     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.99     GC        1.00*    HH        0.91     
!   HN        1.04     KK        1.00*    KP        1.01     LA        1.23     
!   MC        1.00*    MK        1.00*    NL        0.99     NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        0.99     SC        1.07     
!   TS        1.00*    WF        1.02     WZ        1.00*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.99     FD        0.98     GC        1.00*    HH        1.00*    
!   HN        1.07     KK        1.00*    KP        0.99     LA        1.15     
!   MC        1.00*    MK        1.07     NL        0.99     NY        1.00*    
!   ON        1.00*    OV        0.97     PT        0.98     SC        1.23     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.05     FD        0.98     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.06     LA        1.00*    
!   MC        1.00*    MK        0.92     NL        1.10     NY        1.00*    
!   ON        1.00*    OV        1.01     PT        1.00     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        0.98     GC        1.00*    HH        0.92     
!   HN        1.04     KK        1.00*    KP        1.00     LA        1.01     
!   MC        1.00*    MK        1.00*    NL        1.00     NY        1.00*    
!   ON        1.00*    OV        1.00*    PT        0.99     SC        1.09     
!   TS        1.00*    WF        1.04     WZ        1.00*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        0.99     FD        0.96     GC        1.00*    HH        1.00*    
!   HN        1.04     KK        1.00*    KP        1.00     LA        0.99     
!   MC        1.00*    MK        1.00*    NL        0.98     NY        1.00*    
!   ON        1.00*    OV        1.00     PT        0.97     SC        1.21     
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.03     FD        1.01     GC        1.00*    HH        1.00*    
!   HN        1.00*    KK        1.00*    KP        1.03     LA        0.98     
!   MC        1.00*    MK        0.91     NL        1.06     NY        1.00*    
!   ON        1.00*    OV        1.01     PT        0.99     SC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.152548Jy  sigma=0.002066
! Fit after  self-cal, rms=0.105877Jy  sigma=0.001323
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.434 mas, bmaj=6.607 mas, bpa=13.56 degrees
! Estimated noise=911.069 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 = -0.00133857 Jy
! Component: 100  -  total flux cleaned = -0.000582005 Jy
! Total flux subtracted in 100 components = -0.000582005 Jy
! Clean residual min=-0.006561 max=0.009053 Jy/beam
! Clean residual mean=0.000405 rms=0.001608 Jy/beam
! Combined flux in latest and established models = 2.23456 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 7 model components to the UV plane model.
! The established model now contains 60 components and 2.23457 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.105430Jy  sigma=0.001316
! Fit after  self-cal, rms=0.105359Jy  sigma=0.001315
! 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 (-0.4, -14.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00612163 Jy
! Component: 100  -  total flux cleaned = 0.00719589 Jy
! Total flux subtracted in 100 components = 0.00719589 Jy
! Clean residual min=-0.006355 max=0.006090 Jy/beam
! Clean residual mean=0.000332 rms=0.001447 Jy/beam
! Combined flux in latest and established models = 2.24176 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 10 model components to the UV plane model.
! The established model now contains 69 components and 2.24176 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.104627Jy  sigma=0.001305
! Fit after  self-cal, rms=0.102111Jy  sigma=0.001271
! Inverting map and beam 
! Estimated beam: bmin=3.434 mas, bmaj=6.611 mas, bpa=13.52 degrees
! Estimated noise=910.736 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 = 0.00159832 Jy
! Component: 100  -  total flux cleaned = 0.00210051 Jy
! Total flux subtracted in 100 components = 0.00210051 Jy
! Clean residual min=-0.005353 max=0.006057 Jy/beam
! Clean residual mean=0.000352 rms=0.001346 Jy/beam
! Combined flux in latest and established models = 2.24386 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 74 components and 2.24386 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.101714Jy  sigma=0.001266
! Fit after  self-cal, rms=0.101680Jy  sigma=0.001265
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1504-166_S
! Writing UV FITS file: 1504-166_S.uvf
! Writing 74 model components to file: 1504-166_S.mod
! wwins: Wrote 3 windows to 1504-166_S.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.434 x 6.611 at 13.52 degrees (North through East)
! Clean map  min=-0.0054996  max=1.7879 Jy/beam
! Writing clean map to FITS file: 1504-166_S.fits
! Writing difmap environment to: 1504-166_S.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1504-166_S]
device 1504-166_Suv.ps/vps,1,2
! Attempting to open device: '1504-166_Suv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1504-166_Sim.ps/vps
! Attempting to open device: '1504-166_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=3.434 mas, bmaj=6.611 mas, bpa=13.52 degrees
! Estimated noise=910.736 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.434 x 6.611 at 13.52 degrees (North through East)
! Clean map  min=-0.0054996  max=1.7879 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.4]
quit
! Quitting program
! Log file 1504-166_S.log closed on Tue Aug 16 18:11:35 2005