! Started logfile: 3C274_X.log on Wed May 14 16:52:14 2008
observe 3C274_X.edt
! Reading UV FITS file: 3C274_X.edt
! AN table 1: 81 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.1425 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 3C274
! 
! 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 7064 visibilities.
![@gonzo6-0.1 3C274_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 1150 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 1136 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 1142 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 1138 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.430532Jy  sigma=0.005176
! Fit after  self-cal, rms=0.425945Jy  sigma=0.005157
! 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=0.5912 mas, bmaj=1.234 mas, bpa=-11.09 degrees
! Estimated noise=1610.38 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 = 0.53973 Jy
! Total flux subtracted in 50 components = 0.53973 Jy
! Clean residual min=-0.046075 max=0.203725 Jy/beam
! Clean residual mean=0.000318 rms=0.016124 Jy/beam
! Combined flux in latest and established models = 0.53973 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 9 components and 0.53973 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.482605Jy  sigma=0.006249
! Fit after  self-cal, rms=0.482444Jy  sigma=0.006248
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.219004 Jy
! Total flux subtracted in 50 components = 0.219004 Jy
! Clean residual min=-0.034670 max=0.130284 Jy/beam
! Clean residual mean=0.000267 rms=0.011413 Jy/beam
! Combined flux in latest and established models = 0.758735 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 10 model components to the UV plane model.
! The established model now contains 13 components and 0.758735 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.349349Jy  sigma=0.004504
! Fit after  self-cal, rms=0.349013Jy  sigma=0.004500
! Inverting map 
! Added new window around map position (-0.9, 0.3).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.136228 Jy
! Total flux subtracted in 50 components = 0.136228 Jy
! Clean residual min=-0.028227 max=0.074778 Jy/beam
! Clean residual mean=0.000228 rms=0.008905 Jy/beam
! Combined flux in latest and established models = 0.894963 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 24 components and 0.894963 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.278084Jy  sigma=0.003566
! Fit after  self-cal, rms=0.276933Jy  sigma=0.003555
! Inverting map 
! Added new window around map position (-1.5, 0.3).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0911836 Jy
! Total flux subtracted in 50 components = 0.0911836 Jy
! Clean residual min=-0.023992 max=0.058324 Jy/beam
! Clean residual mean=0.000201 rms=0.007437 Jy/beam
! Combined flux in latest and established models = 0.986146 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 20 model components to the UV plane model.
! The established model now contains 36 components and 0.986146 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.236139Jy  sigma=0.003004
! Fit after  self-cal, rms=0.235621Jy  sigma=0.002999
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0680012 Jy
! Total flux subtracted in 50 components = 0.0680012 Jy
! Clean residual min=-0.021554 max=0.049154 Jy/beam
! Clean residual mean=0.000180 rms=0.006500 Jy/beam
! Combined flux in latest and established models = 1.05415 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 20 model components to the UV plane model.
! The established model now contains 51 components and 1.05415 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.209123Jy  sigma=0.002636
! Fit after  self-cal, rms=0.208768Jy  sigma=0.002633
! Inverting map 
! Added new window around map position (0.9, -0.2).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0562653 Jy
! Total flux subtracted in 50 components = 0.0562653 Jy
! Clean residual min=-0.019414 max=0.034876 Jy/beam
! Clean residual mean=0.000161 rms=0.005779 Jy/beam
! Combined flux in latest and established models = 1.11041 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 62 components and 1.11041 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.189011Jy  sigma=0.002365
! Fit after  self-cal, rms=0.188886Jy  sigma=0.002363
! Inverting map 
! Added new window around map position (-2.3, 0.5).
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0456706 Jy
! Total flux subtracted in 50 components = 0.0456706 Jy
! Clean residual min=-0.018349 max=0.027307 Jy/beam
! Clean residual mean=0.000146 rms=0.005259 Jy/beam
! Combined flux in latest and established models = 1.15608 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 80 components and 1.15608 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.174651Jy  sigma=0.002165
! Fit after  self-cal, rms=0.174550Jy  sigma=0.002164
! 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=0.844 mas, bmaj=1.398 mas, bpa=-10.28 degrees
! Estimated noise=955.215 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 = 0.0708428 Jy
! Component: 100  -  total flux cleaned = 0.119662 Jy
! Total flux subtracted in 100 components = 0.119662 Jy
! Clean residual min=-0.020374 max=0.027705 Jy/beam
! Clean residual mean=0.001221 rms=0.006660 Jy/beam
! Combined flux in latest and established models = 1.27575 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 70 model components to the UV plane model.
! The established model now contains 136 components and 1.27575 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.146550Jy  sigma=0.001747
! Fit after  self-cal, rms=0.145936Jy  sigma=0.001738
! 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 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.93     FD        0.99     GC        1.05     HH        1.00*    
!   HN        0.97     KK        0.99     KP        0.95     LA        0.96     
!   MC        1.00*    MK        0.98     NL        0.99     NY        1.06     
!   ON        0.94     OV        0.96     PT        0.96     SC        1.01     
!   WF        1.03     WZ        1.03     
! 
! 
! Correcting IF 2.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.94     FD        0.97     GC        1.08     HH        1.00*    
!   HN        0.95     KK        1.02     KP        0.96     LA        0.96     
!   MC        1.16     MK        0.97     NL        0.97     NY        1.09     
!   ON        1.03     OV        0.94     PT        0.99     SC        1.01     
!   WF        1.05     WZ        1.01     
! 
! 
! Correcting IF 3.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.95     FD        0.99     GC        1.11     HH        1.00*    
!   HN        0.96     KK        0.98     KP        0.97     LA        0.97     
!   MC        1.26     MK        0.95     NL        1.00     NY        1.08     
!   ON        1.09     OV        0.96     PT        1.01     SC        1.01     
!   WF        1.14     WZ        0.95     
! 
! 
! Correcting IF 4.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        0.94     FD        0.97     GC        1.14     HH        1.00*    
!   HN        0.96     KK        0.99     KP        0.96     LA        0.97     
!   MC        1.20     MK        0.93     NL        1.01     NY        1.12     
!   ON        1.06     OV        0.96     PT        1.01     SC        1.07     
!   WF        1.10     WZ        0.98     
! 
! 
! Fit before self-cal, rms=0.145936Jy  sigma=0.001738
! Fit after  self-cal, rms=0.130722Jy  sigma=0.001511
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.8607 mas, bmaj=1.428 mas, bpa=-10.66 degrees
! Estimated noise=936.689 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 = 0.023255 Jy
! Component: 100  -  total flux cleaned = 0.0300998 Jy
! Total flux subtracted in 100 components = 0.0300998 Jy
! Clean residual min=-0.013693 max=0.017546 Jy/beam
! Clean residual mean=0.001446 rms=0.004741 Jy/beam
! Combined flux in latest and established models = 1.30585 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 21 model components to the UV plane model.
! The established model now contains 156 components and 1.30585 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.126874Jy  sigma=0.001452
! Fit after  self-cal, rms=0.126700Jy  sigma=0.001449
! 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 = 0.00782208 Jy
! Component: 100  -  total flux cleaned = 0.0124109 Jy
! Total flux subtracted in 100 components = 0.0124109 Jy
! Clean residual min=-0.015121 max=0.017765 Jy/beam
! Clean residual mean=0.001392 rms=0.004678 Jy/beam
! Combined flux in latest and established models = 1.31826 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 25 model components to the UV plane model.
! The established model now contains 171 components and 1.31826 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.125325Jy  sigma=0.001430
! Fit after  self-cal, rms=0.115028Jy  sigma=0.001275
! Inverting map and beam 
! Estimated beam: bmin=0.8606 mas, bmaj=1.424 mas, bpa=-10.63 degrees
! Estimated noise=934.524 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)
! Added new window around map position (-6, 0.2).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0185133 Jy
! Component: 100  -  total flux cleaned = 0.0308622 Jy
! Total flux subtracted in 100 components = 0.0308622 Jy
! Clean residual min=-0.009820 max=0.011955 Jy/beam
! Clean residual mean=0.001120 rms=0.003143 Jy/beam
! Combined flux in latest and established models = 1.34912 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 27 model components to the UV plane model.
! The established model now contains 196 components and 1.34912 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.111959Jy  sigma=0.001231
! Fit after  self-cal, rms=0.111779Jy  sigma=0.001227
! Inverting map 
! Added new window around map position (-3.3, 0.5).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0132294 Jy
! Component: 100  -  total flux cleaned = 0.0222872 Jy
! Total flux subtracted in 100 components = 0.0222872 Jy
! Clean residual min=-0.009219 max=0.011336 Jy/beam
! Clean residual mean=0.001025 rms=0.002932 Jy/beam
! Combined flux in latest and established models = 1.37141 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 33 model components to the UV plane model.
! The established model now contains 222 components and 1.37141 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.110045Jy  sigma=0.001205
! Fit after  self-cal, rms=0.110014Jy  sigma=0.001204
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 3C274_X
! Writing UV FITS file: 3C274_X.uvf
! Writing 222 model components to file: 3C274_X.mod
! wwins: Wrote 7 windows to 3C274_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.8606 x 1.424 at -10.63 degrees (North through East)
! Clean map  min=-0.0093395  max=0.74975 Jy/beam
! Writing clean map to FITS file: 3C274_X.fits
! Writing difmap environment to: 3C274_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 3C274_X]
device 3C274_Xuv.ps/vps,1,2
! Attempting to open device: '3C274_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 3C274_Xim.ps/vps
! Attempting to open device: '3C274_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=0.8606 mas, bmaj=1.424 mas, bpa=-10.63 degrees
! Estimated noise=934.524 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.8606 x 1.424 at -10.63 degrees (North through East)
! Clean map  min=-0.0093395  max=0.74975 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo6-0.1]
quit
! Quitting program
! Log file 3C274_X.log closed on Wed May 14 16:52:25 2008