! Started logfile: 1657-261_X.log on Mon Sep 10 19:24:46 2007
observe 1657-261_X.edt
! Reading UV FITS file: 1657-261_X.edt
! AN table 1: 25 integrations on 171 of 171 possible baselines.
! AN table 2: 16 integrations on 171 of 171 possible baselines.
! AN table 3: 15 integrations on 171 of 171 possible baselines.
! AN table 4: 82 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.0894991 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 1657-261
! 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.
! 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  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 2124 lines of history.
! 
! Reading 8448 visibilities.
![@gonzo7-0.1 1657-261_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 475 telescope corrections were flagged in sub-array 1.
!  A total of 304 telescope corrections were flagged in sub-array 2.
!  A total of 222 telescope corrections were flagged in sub-array 3.
!  A total of 1271 telescope corrections were flagged in sub-array 4.
! 
! Correcting IF 2.
!  A total of 475 telescope corrections were flagged in sub-array 1.
!  A total of 304 telescope corrections were flagged in sub-array 2.
!  A total of 219 telescope corrections were flagged in sub-array 3.
!  A total of 1263 telescope corrections were flagged in sub-array 4.
! 
! Correcting IF 3.
!  A total of 475 telescope corrections were flagged in sub-array 1.
!  A total of 304 telescope corrections were flagged in sub-array 2.
!  A total of 236 telescope corrections were flagged in sub-array 3.
!  A total of 1277 telescope corrections were flagged in sub-array 4.
! 
! Correcting IF 4.
!  A total of 475 telescope corrections were flagged in sub-array 1.
!  A total of 304 telescope corrections were flagged in sub-array 2.
!  A total of 232 telescope corrections were flagged in sub-array 3.
!  A total of 1280 telescope corrections were flagged in sub-array 4.
! 
! Fit before self-cal, rms=0.599365Jy  sigma=0.008338
! Fit after  self-cal, rms=0.598924Jy  sigma=0.008349
! 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=0.8209 mas, bmaj=2.248 mas, bpa=-10.21 degrees
! Estimated noise=1707.17 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 = 0.307497 Jy
! Total flux subtracted in 50 components = 0.307497 Jy
! Clean residual min=-0.017594 max=0.085759 Jy/beam
! Clean residual mean=-0.000147 rms=0.006013 Jy/beam
! Combined flux in latest and established models = 0.307497 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 0.307497 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.116408Jy  sigma=0.001692
! Fit after  self-cal, rms=0.116409Jy  sigma=0.001692
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0671271 Jy
! Total flux subtracted in 50 components = 0.0671271 Jy
! Clean residual min=-0.008460 max=0.019058 Jy/beam
! Clean residual mean=-0.000072 rms=0.002582 Jy/beam
! Combined flux in latest and established models = 0.374624 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 5 model components to the UV plane model.
! The established model now contains 5 components and 0.374624 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.070940Jy  sigma=0.001015
! Fit after  self-cal, rms=0.070928Jy  sigma=0.001014
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0192551 Jy
! Total flux subtracted in 50 components = 0.0192551 Jy
! Clean residual min=-0.007535 max=0.011493 Jy/beam
! Clean residual mean=-0.000049 rms=0.002095 Jy/beam
! Combined flux in latest and established models = 0.393879 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 16 model components to the UV plane model.
! The established model now contains 21 components and 0.393879 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.064539Jy  sigma=0.000907
! Fit after  self-cal, rms=0.064534Jy  sigma=0.000907
! 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=1.193 mas, bmaj=3.215 mas, bpa=-11.26 degrees
! Estimated noise=947.768 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 = 0.0207076 Jy
! Component: 100  -  total flux cleaned = 0.0312227 Jy
! Total flux subtracted in 100 components = 0.0312227 Jy
! Clean residual min=-0.004953 max=0.008358 Jy/beam
! Clean residual mean=-0.000040 rms=0.001668 Jy/beam
! Combined flux in latest and established models = 0.425102 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 38 model components to the UV plane model.
! The established model now contains 55 components and 0.425102 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.059202Jy  sigma=0.000815
! Fit after  self-cal, rms=0.059203Jy  sigma=0.000815
! 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        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*    
! 
!  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*    
! 
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.05     FD        1.00     GC        1.00*    GG        1.00*    
!   HN        1.00*    KP        1.00     LA        0.97     MA        1.00*    
!   MK        0.98     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        0.99     PT        0.95     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 4.
!  Telescope amplitude corrections in sub-array 4:
!   BR        0.95     FD        0.97     GC        1.00*    GG        1.00*    
!   HN        0.99     KP        0.99     LA        0.98     MA        1.00*    
!   MK        1.04     NL        1.08     NY        1.00*    ON        1.00*    
!   OV        0.99     PT        1.01     SC        1.01     TC        1.00*    
!   TS        1.00*    WF        0.98     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   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*    
! 
!  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 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.05     FD        1.00     GC        1.00*    GG        1.00*    
!   HN        1.00*    KP        0.96     LA        0.97     MA        1.00*    
!   MK        0.97     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        1.00     PT        1.01     SC        1.00*    TC        1.00*    
!   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        0.96     FD        0.98     GC        1.00*    GG        1.00*    
!   HN        1.01     KP        0.95     LA        1.01     MA        1.00*    
!   MK        1.01     NL        1.05     NY        1.00*    ON        1.00*    
!   OV        0.98     PT        1.03     SC        0.98     TC        1.00*    
!   TS        1.00*    WF        1.00     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  Telescope amplitude corrections in sub-array 1:
!   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*    
! 
!  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 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.02     FD        0.99     GC        1.00*    GG        1.00*    
!   HN        1.00*    KP        0.92     LA        0.97     MA        1.00*    
!   MK        0.97     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        0.98     PT        1.07     SC        1.00*    TC        1.00*    
!   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        1.00     FD        0.98     GC        1.00*    GG        1.00*    
!   HN        1.00     KP        0.92     LA        0.99     MA        1.00*    
!   MK        1.01     NL        1.06     NY        1.00*    ON        1.00*    
!   OV        0.97     PT        1.02     SC        1.01     TC        1.00*    
!   TS        1.00*    WF        1.03     WZ        1.00*    
! 
! 
! Correcting IF 4.
!  Telescope amplitude corrections in sub-array 1:
!   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*    
! 
!  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 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        1.04     FD        0.99     GC        1.00*    GG        1.00*    
!   HN        1.00*    KP        0.92     LA        1.02     MA        1.00*    
!   MK        0.96     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        0.98     PT        1.04     SC        1.00*    TC        1.00*    
!   TS        1.00*    WF        1.00*    WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 4.
!  Telescope amplitude corrections in sub-array 4:
!   BR        0.95     FD        0.97     GC        1.00*    GG        1.00*    
!   HN        0.99     KP        0.94     LA        0.97     MA        1.00*    
!   MK        1.00     NL        1.05     NY        1.00*    ON        1.00*    
!   OV        0.98     PT        1.04     SC        1.04     TC        1.00*    
!   TS        1.00*    WF        1.05     WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.059203Jy  sigma=0.000815
! Fit after  self-cal, rms=0.055603Jy  sigma=0.000768
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=1.198 mas, bmaj=3.248 mas, bpa=-11.02 degrees
! Estimated noise=942.179 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 = -0.000230209 Jy
! Component: 100  -  total flux cleaned = -0.000288256 Jy
! Total flux subtracted in 100 components = -0.000288256 Jy
! Clean residual min=-0.003688 max=0.003518 Jy/beam
! Clean residual mean=-0.000021 rms=0.000930 Jy/beam
! Combined flux in latest and established models = 0.424814 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 62 components and 0.424814 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.055586Jy  sigma=0.000768
! Fit after  self-cal, rms=0.055591Jy  sigma=0.000768
! 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 = -2.08336e-05 Jy
! Component: 100  -  total flux cleaned = -4.33133e-05 Jy
! Total flux subtracted in 100 components = -4.33133e-05 Jy
! Clean residual min=-0.003698 max=0.003508 Jy/beam
! Clean residual mean=-0.000022 rms=0.000929 Jy/beam
! Combined flux in latest and established models = 0.42477 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 9 model components to the UV plane model.
! The established model now contains 66 components and 0.42477 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.055582Jy  sigma=0.000768
! Fit after  self-cal, rms=0.053330Jy  sigma=0.000736
! Inverting map and beam 
! Estimated beam: bmin=1.198 mas, bmaj=3.249 mas, bpa=-11.04 degrees
! Estimated noise=943.474 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 = 0.000180149 Jy
! Component: 100  -  total flux cleaned = 0.0001804 Jy
! Total flux subtracted in 100 components = 0.0001804 Jy
! Clean residual min=-0.002555 max=0.002363 Jy/beam
! Clean residual mean=-0.000013 rms=0.000676 Jy/beam
! Combined flux in latest and established models = 0.424951 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 69 components and 0.424951 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.053311Jy  sigma=0.000735
! Fit after  self-cal, rms=0.053314Jy  sigma=0.000735
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 1657-261_X
! Writing UV FITS file: 1657-261_X.uvf
! Writing 69 model components to file: 1657-261_X.mod
! wwins: Wrote 1 windows to 1657-261_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.198 x 3.249 at -11.04 degrees (North through East)
! Clean map  min=-0.0025397  max=0.39623 Jy/beam
! Writing clean map to FITS file: 1657-261_X.fits
! Writing difmap environment to: 1657-261_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
![@gonzo_plot 1657-261_X]
device 1657-261_Xuv.ps/vps,1,2
! Attempting to open device: '1657-261_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 1657-261_Xim.ps/vps
! Attempting to open device: '1657-261_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=1.198 mas, bmaj=3.249 mas, bpa=-11.04 degrees
! Estimated noise=943.474 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 1.198 x 3.249 at -11.04 degrees (North through East)
! Clean map  min=-0.0025397  max=0.39623 Jy/beam
![Exited script file: gonzo_plot]
![Exited script file: gonzo7-0.1]
quit
! Quitting program
! Log file 1657-261_X.log closed on Mon Sep 10 19:24:53 2007