! Started logfile: 1821+107_X.log on Wed May 14 15:59:04 2008
observe 1821+107_X.edt
! Reading UV FITS file: 1821+107_X.edt
! AN table 1: 48 integrations on 153 of 153 possible baselines.
! Apparent sampling: 0.0269608 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1821+107
! 
! 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 946 lines of history.
! 
! Reading 792 visibilities.
![@gonzo7-0.1-pw 1821+107_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 = 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 0.100x0.100 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 857 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 852 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 855 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 850 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.716851Jy  sigma=0.008694
! Fit after  self-cal, rms=0.720587Jy  sigma=0.008677
! 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
peakw win_mult
! Inverting map and beam 
! Estimated beam: bmin=0.5262 mas, bmaj=1.469 mas, bpa=-8.111 degrees
! Estimated noise=10665.4 mJy/beam.
! Added new window around map position (0, 0).
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=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.20378 Jy
! Total flux subtracted in 50 components = 0.20378 Jy
! Clean residual min=-0.043313 max=0.056830 Jy/beam
! Clean residual mean=0.000096 rms=0.015268 Jy/beam
! Combined flux in latest and established models = 0.20378 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 0.20378 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.128082Jy  sigma=0.001562
! Fit after  self-cal, rms=0.128078Jy  sigma=0.001562
! 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=0.5615 mas, bmaj=1.595 mas, bpa=-7.369 degrees
! Estimated noise=8905.61 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 = 0.0844494 Jy
! Component: 100  -  total flux cleaned = 0.132013 Jy
! Total flux subtracted in 100 components = 0.132013 Jy
! Clean residual min=-0.034677 max=0.032183 Jy/beam
! Clean residual mean=0.000107 rms=0.012228 Jy/beam
! Combined flux in latest and established models = 0.335794 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 17 components and 0.335794 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.065149Jy  sigma=0.000792
! Fit after  self-cal, rms=0.064992Jy  sigma=0.000790
! 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 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        0.92     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        1.00*    MK        1.00*    NL        0.91     NY        0.93     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.00*    
!   WF        1.00*    WZ        0.94     
! 
! 
! Correcting IF 2.
!  A total of 6 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        1.08     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        0.90     MK        1.00*    NL        0.76     NY        1.22     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        1.17     
!   WF        1.00*    WZ        0.73     
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        1.01     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        0.99     MK        1.00*    NL        0.91     NY        1.06     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        0.95     
!   WF        0.96     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        1.00*    FD        1.00*    GC        1.00*    HH        1.00*    
!   HN        0.91     KK        1.00*    KP        1.00*    LA        1.00*    
!   MC        0.96     MK        1.00*    NL        0.92     NY        1.08     
!   ON        1.00*    OV        1.00*    PT        1.00*    SC        0.99     
!   WF        1.00*    WZ        0.87     
! 
! 
! Fit before self-cal, rms=0.064992Jy  sigma=0.000790
! Fit after  self-cal, rms=0.057480Jy  sigma=0.000543
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.5567 mas, bmaj=1.633 mas, bpa=-7.7 degrees
! Estimated noise=9087.79 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 = 0.0158046 Jy
! Component: 100  -  total flux cleaned = 0.0227562 Jy
! Total flux subtracted in 100 components = 0.0227562 Jy
! Clean residual min=-0.017102 max=0.014124 Jy/beam
! Clean residual mean=0.000006 rms=0.004079 Jy/beam
! Combined flux in latest and established models = 0.35855 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 19 components and 0.35855 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.051984Jy  sigma=0.000475
! Fit after  self-cal, rms=0.051989Jy  sigma=0.000474
! 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 = 0.00146864 Jy
! Component: 100  -  total flux cleaned = 0.0014663 Jy
! Total flux subtracted in 100 components = 0.0014663 Jy
! Clean residual min=-0.017570 max=0.013560 Jy/beam
! Clean residual mean=0.000003 rms=0.004011 Jy/beam
! Combined flux in latest and established models = 0.360016 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 6 model components to the UV plane model.
! The established model now contains 22 components and 0.360016 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.051463Jy  sigma=0.000470
! Fit after  self-cal, rms=0.046587Jy  sigma=0.000442
! Inverting map and beam 
! Estimated beam: bmin=0.5537 mas, bmaj=1.628 mas, bpa=-7.715 degrees
! Estimated noise=9034.62 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 = 0.0039952 Jy
! Component: 100  -  total flux cleaned = 0.00508841 Jy
! Total flux subtracted in 100 components = 0.00508841 Jy
! Clean residual min=-0.014048 max=0.013402 Jy/beam
! Clean residual mean=0.000005 rms=0.003641 Jy/beam
! Combined flux in latest and established models = 0.365105 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 29 components and 0.365105 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.045975Jy  sigma=0.000436
! Fit after  self-cal, rms=0.045994Jy  sigma=0.000436
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1821+107_X
! Writing UV FITS file: 1821+107_X.uvf
! Writing 29 model components to file: 1821+107_X.mod
! wwins: Wrote 1 windows to 1821+107_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.5537 x 1.628 at -7.715 degrees (North through East)
! Clean map  min=-0.013441  max=0.26201 Jy/beam
! Writing clean map to FITS file: 1821+107_X.fits
! Writing difmap environment to: 1821+107_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1821+107_X]
device 1821+107_Xuv.ps/vps,1,2
! Attempting to open device: '1821+107_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1821+107_Xim.ps/vps
! Attempting to open device: '1821+107_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=0.5537 mas, bmaj=1.628 mas, bpa=-7.715 degrees
! Estimated noise=9034.62 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.5537 x 1.628 at -7.715 degrees (North through East)
! Clean map  min=-0.013441  max=0.26201 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.1-pw]
quit
! Quitting program
! Log file 1821+107_X.log closed on Wed May 14 15:59:11 2008