! Started logfile: 0342+147_X.log on Fri Apr 19 01:26:24 2002
observe 0342+147_X.edt
! Reading UV FITS file: 0342+147_X.edt
! AN table 1: 31 integrations on 171 of 171 possible baselines.
! AN table 2: 149 integrations on 171 of 171 possible baselines.
! AN table 3: 74 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.205139 visibilities/baseline/integration-bin.
! *** This seems a bit low - see "help observe" on the binwid argument.
! Found source: 0342+147
! 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 1606 lines of history.
! 
! Reading 35640 visibilities.
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 = 8.0
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 505 telescope corrections were flagged in sub-array 1.
!  A total of 2136 telescope corrections were flagged in sub-array 2.
!  A total of 675 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 2.
!  A total of 505 telescope corrections were flagged in sub-array 1.
!  A total of 2109 telescope corrections were flagged in sub-array 2.
!  A total of 687 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 3.
!  A total of 535 telescope corrections were flagged in sub-array 1.
!  A total of 2185 telescope corrections were flagged in sub-array 2.
!  A total of 830 telescope corrections were flagged in sub-array 3.
! 
! Correcting IF 4.
!  A total of 535 telescope corrections were flagged in sub-array 1.
!  A total of 2239 telescope corrections were flagged in sub-array 2.
!  A total of 827 telescope corrections were flagged in sub-array 3.
! 
! Fit before self-cal, rms=0.791793Jy  sigma=5.708097
! Fit after  self-cal, rms=0.791657Jy  sigma=5.707230
! 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=0.5757 mas, bmaj=1.135 mas, bpa=-1.281 degrees
! Estimated noise=1.22269 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 = 0.153113 Jy
! Total flux subtracted in 50 components = 0.153113 Jy
! Clean residual min=-0.009458 max=0.045279 Jy/beam
! Clean residual mean=-0.000034 rms=0.002613 Jy/beam
! Combined flux in latest and established models = 0.153113 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 4 model components to the UV plane model.
! The established model now contains 4 components and 0.153113 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.110998Jy  sigma=0.798082
! Fit after  self-cal, rms=0.110998Jy  sigma=0.798078
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0469866 Jy
! Total flux subtracted in 50 components = 0.0469866 Jy
! Clean residual min=-0.006109 max=0.020534 Jy/beam
! Clean residual mean=-0.000020 rms=0.001583 Jy/beam
! Combined flux in latest and established models = 0.2001 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 4 model components to the UV plane model.
! The established model now contains 6 components and 0.2001 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.090931Jy  sigma=0.653158
! Fit after  self-cal, rms=0.090852Jy  sigma=0.652596
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0222223 Jy
! Total flux subtracted in 50 components = 0.0222223 Jy
! Clean residual min=-0.004736 max=0.009821 Jy/beam
! Clean residual mean=-0.000013 rms=0.001244 Jy/beam
! Combined flux in latest and established models = 0.222322 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 7 components and 0.222322 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.085518Jy  sigma=0.614076
! Fit after  self-cal, rms=0.085490Jy  sigma=0.613873
! Inverting map 
! clean: niter=50  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0107804 Jy
! Total flux subtracted in 50 components = 0.0107804 Jy
! Clean residual min=-0.004377 max=0.006667 Jy/beam
! Clean residual mean=-0.000010 rms=0.001153 Jy/beam
! Combined flux in latest and established models = 0.233103 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 10 components and 0.233103 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.084054Jy  sigma=0.603521
! Fit after  self-cal, rms=0.084044Jy  sigma=0.603446
! 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=0.7123 mas, bmaj=1.281 mas, bpa=-2.007 degrees
! Estimated noise=0.631326 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 (-6.5, 0.4).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0104538 Jy
! Component: 100  -  total flux cleaned = 0.0169074 Jy
! Total flux subtracted in 100 components = 0.0169074 Jy
! Clean residual min=-0.003233 max=0.005256 Jy/beam
! Clean residual mean=-0.000029 rms=0.000856 Jy/beam
! Combined flux in latest and established models = 0.25001 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 24 model components to the UV plane model.
! The established model now contains 29 components and 0.25001 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.082829Jy  sigma=0.594657
! Fit after  self-cal, rms=0.082787Jy  sigma=0.594347
! 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 12 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        1.04     GG        1.00*    
!   HN        1.00*    KP        1.01     LA        1.00*    MC        1.00*    
!   MK        1.02     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        0.94     PT        1.00*    SC        1.00*    TS        1.00*    
!   WF        1.00*    KK        1.00*    WZ        1.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.02     FD        0.99     GC        1.02     GG        1.00*    
!   HN        1.01     KP        1.00     LA        1.00     MC        1.00*    
!   MK        1.01     NL        1.00     NY        1.00*    ON        1.00*    
!   OV        1.00     PT        0.99     SC        1.01     TS        1.00*    
!   WF        0.95     KK        1.04     WZ        1.10     
! 
!  A total of 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.98     FD        1.00     GC        0.88     GG        1.00*    
!   HN        1.03     KP        1.03     LA        0.97     MC        1.00*    
!   MK        1.02     NL        0.97     NY        1.07     ON        1.00*    
!   OV        0.95     PT        1.01     SC        0.96     TS        1.05     
!   WF        0.93     KK        0.97     WZ        1.00*    
! 
! 
! Correcting IF 2.
!  A total of 12 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00*    FD        1.00*    GC        0.91     GG        1.00*    
!   HN        1.00*    KP        1.04     LA        1.00*    MC        1.00*    
!   MK        1.07     NL        1.00*    NY        1.00*    ON        1.00*    
!   OV        0.93     PT        1.00*    SC        1.00*    TS        1.00*    
!   WF        1.00*    KK        1.00*    WZ        1.00*    
! 
!  A total of 12 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.04     FD        1.00     GC        0.97     GG        1.00*    
!   HN        1.02     KP        0.99     LA        1.00     MC        1.00*    
!   MK        1.06     NL        1.01     NY        1.00*    ON        1.00*    
!   OV        0.98     PT        0.99     SC        1.02     TS        1.00*    
!   WF        0.99     KK        1.05     WZ        1.03     
! 
!  A total of 3 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.99     FD        0.98     GC        0.84     GG        1.00*    
!   HN        1.06     KP        1.01     LA        0.96     MC        1.00*    
!   MK        1.00     NL        1.00     NY        1.09     ON        1.00*    
!   OV        0.97     PT        1.00     SC        0.97     TS        1.08     
!   WF        0.95     KK        0.97     WZ        1.00*    
! 
! 
! Correcting IF 3.
!  A total of 54 telescope corrections were flagged in sub-array 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*    MC        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    TS        0.00*    
!   WF        0.00*    KK        0.00*    WZ        0.00*    
! 
!  A total of 48 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.01     FD        0.99     GC        0.97     GG        1.00*    
!   HN        1.02     KP        1.01     LA        1.01     MC        1.00*    
!   MK        1.05     NL        1.01     NY        1.00*    ON        1.00*    
!   OV        1.00     PT        0.98     SC        1.02     TS        1.00*    
!   WF        0.94     KK        1.05     WZ        1.06     
! 
!  A total of 39 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.92     FD        1.00     GC        0.87     GG        1.00*    
!   HN        1.00*    KP        0.98     LA        1.00     MC        1.00*    
!   MK        1.00     NL        0.98     NY        1.10     ON        1.00*    
!   OV        0.95     PT        0.99     SC        1.00*    TS        1.05     
!   WF        1.00*    KK        0.96     WZ        1.00*    
! 
! 
! Correcting IF 4.
!  A total of 54 telescope corrections were flagged in sub-array 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*    MC        0.00*    
!   MK        0.00*    NL        0.00*    NY        0.00*    ON        0.00*    
!   OV        0.00*    PT        0.00*    SC        0.00*    TS        0.00*    
!   WF        0.00*    KK        0.00*    WZ        0.00*    
! 
!  A total of 9 telescope corrections were flagged in sub-array 2.
!  Telescope amplitude corrections in sub-array 2:
!   BR        1.03     FD        0.98     GC        0.98     GG        1.00*    
!   HN        1.03     KP        1.04     LA        0.99     MC        1.00*    
!   MK        1.02     NL        1.03     NY        1.00*    ON        1.00*    
!   OV        0.97     PT        1.01     SC        1.05     TS        1.00*    
!   WF        0.95     KK        1.03     WZ        1.07     
! 
!  A total of 42 telescope corrections were flagged in sub-array 3.
!  Telescope amplitude corrections in sub-array 3:
!   BR        0.96     FD        0.98     GC        0.87     GG        1.00*    
!   HN        1.00*    KP        0.99     LA        0.97     MC        1.00*    
!   MK        1.04     NL        0.97     NY        1.15     ON        1.00*    
!   OV        0.97     PT        0.99     SC        1.00*    TS        1.06     
!   WF        1.00*    KK        0.93     WZ        1.00*    
! 
! 
! Fit before self-cal, rms=0.082787Jy  sigma=0.594347
! Fit after  self-cal, rms=0.079975Jy  sigma=0.583268
dynam = dynam - 0.5
doamp = false
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=0.717 mas, bmaj=1.294 mas, bpa=-1.723 degrees
! Estimated noise=0.626427 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 = 0.00406865 Jy
! Component: 100  -  total flux cleaned = 0.00632488 Jy
! Total flux subtracted in 100 components = 0.00632488 Jy
! Clean residual min=-0.002112 max=0.003889 Jy/beam
! Clean residual mean=-0.000010 rms=0.000537 Jy/beam
! Combined flux in latest and established models = 0.256335 Jy
! Performing phase self-cal over 0.6 minute time intervals
! Adding 29 model components to the UV plane model.
! The established model now contains 57 components and 0.256335 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.079788Jy  sigma=0.581888
! Fit after  self-cal, rms=0.079781Jy  sigma=0.581758
! Inverting map 
! Added new window around map position (-1.2, 0).
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00348012 Jy
! Component: 100  -  total flux cleaned = 0.00519741 Jy
! Total flux subtracted in 100 components = 0.00519741 Jy
! Clean residual min=-0.002031 max=0.002592 Jy/beam
! Clean residual mean=-0.000005 rms=0.000479 Jy/beam
! Combined flux in latest and established models = 0.261532 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 79 components and 0.261532 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.079639Jy  sigma=0.580714
! Fit after  self-cal, rms=0.079631Jy  sigma=0.580647
! 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 = 0.00090138 Jy
! Component: 100  -  total flux cleaned = 0.0014622 Jy
! Total flux subtracted in 100 components = 0.0014622 Jy
! Clean residual min=-0.001938 max=0.002476 Jy/beam
! Clean residual mean=-0.000004 rms=0.000462 Jy/beam
! Combined flux in latest and established models = 0.262995 Jy
! Performing amp+phase self-cal over 1 minute time intervals
! Adding 29 model components to the UV plane model.
! The established model now contains 96 components and 0.262994 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.079580Jy  sigma=0.580279
! Fit after  self-cal, rms=0.079090Jy  sigma=0.571548
! Inverting map and beam 
! Estimated beam: bmin=0.7144 mas, bmaj=1.294 mas, bpa=-1.757 degrees
! Estimated noise=0.628264 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 = 0.00206051 Jy
! Component: 100  -  total flux cleaned = 0.00346002 Jy
! Total flux subtracted in 100 components = 0.00346002 Jy
! Clean residual min=-0.001588 max=0.002253 Jy/beam
! Clean residual mean=-0.000003 rms=0.000395 Jy/beam
! Combined flux in latest and established models = 0.266455 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 104 components and 0.266455 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Fit before self-cal, rms=0.079036Jy  sigma=0.571173
! Fit after  self-cal, rms=0.079035Jy  sigma=0.571131
! Inverting map 
print "***********************************"
! *********************************** 
print "*** Finished Amplitude Self-Cal ***"
! *** Finished Amplitude Self-Cal *** 
print "***********************************"
! *********************************** 
save 0342+147_X
! Writing UV FITS file: 0342+147_X.uvf
! Writing 104 model components to file: 0342+147_X.mod
! wwins: Wrote 3 windows to 0342+147_X.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.7144 x 1.294 at -1.757 degrees (North through East)
! Clean map  min=-0.0014878  max=0.20654 Jy/beam
! Writing clean map to FITS file: 0342+147_X.fits
! Writing difmap environment to: 0342+147_X.par
print "****************************"
! **************************** 
print "*** Now, make some plots ***"
! *** Now, make some plots *** 
print "****************************"
! **************************** 
device 0342+147_Xuv.ps/vps,1,2
! Attempting to open device: '0342+147_Xuv.ps/vps'
radplot
! Using default options string "m1"
uvplot
! Using default options string ""
device 0342+147_Xim.ps/vps
! Attempting to open device: '0342+147_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=0.7144 mas, bmaj=1.294 mas, bpa=-1.757 degrees
! Estimated noise=0.628264 mJy/beam.
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.7144 x 1.294 at -1.757 degrees (North through East)
! Clean map  min=-0.0014878  max=0.20654 Jy/beam
quit
! Quitting program
! Log file 0342+147_X.log closed on Fri Apr 19 01:27:16 2002