! Started logfile: /image_prod/ug002_uva//J0836-2016_S_n_dfm.log on Wed Mar  4 22:29:12 2020
float field_size
field_size =  1024
float field_cell
field_cell =   0.5000
float taper_size
taper_size =   20.0
float freq
freq       =    2.22000
obs     /image_prod/ug002_uva//J0836-2016_S_n_uva.fits
! Reading UV FITS file: /image_prod/ug002_uva//J0836-2016_S_n_uva.fits
! AN table 1: 17 integrations on 3 of 3 possible baselines.
! Apparent sampling: 0.960784 visibilities/baseline/integration-bin.
! Found source: J0836-2016
! 
! There are 3 IFs, and a total of 3 channels:
! 
!  IF  Channel    Frequency  Freq offset  Number of   Overall IF
!       origin    at origin  per channel   channels    bandwidth
!  ------------------------------------------------------------- (Hz)
!  01        1     2.22e+09      3.2e+07          1      3.2e+07
!  02        2    2.252e+09      3.2e+07          1      3.2e+07
!  03        3    2.284e+09      3.2e+07          1      3.2e+07
! 
! Polarization(s): RR
! 
! Read 44 lines of history.
! 
! Reading 147 visibilities.
select rr, 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 
! Restricting channel ranges to the available 3 channels.
! Selecting polarization: RR,  channels: 1..3
! Reading IF 1 channels: 1..1
! Reading IF 2 channels: 2..2
! Reading IF 3 channels: 3..3
print "field_size =", field_size
! field_size = 1024 
print "field_cell =", field_cell
! field_cell = 0.5 
print "taper_size =", taper_size
! taper_size = 20 
![@/opt64/bin/pima_mupet_01.dfm J0836-2016_S_n]
float lim_self
lim_self = 120.0
float lim_val
lim_va   = 1.2
integer clean_niter
clean_niter = 100
float clean_gain
clean_gain = 0.03
float dynam
dynam = 6.0
float soltime1
soltime1 = 120
float soltime2
soltime2 = 20
float thresh
thresh = 0.5
float win_mult
win_mult = 1.8
float time_av
time_av = 16
float old_peak
float new_peak
float flux_cutoff
print "==============================================================="
! =============================================================== 
! 
print "=== Difmap script: pima_mupet_01.dvm version of 2016.05.19 === "
! === Difmap script: pima_mupet_01.dvm version of 2016.05.19 ===  
! 
mapsize field_size, field_cell
! Map grid = 1024x1024 pixels with 0.500x0.500 milli-arcsec cellsize.
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 3 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 3 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 3 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=1.537971Jy  sigma=7.474401
! Fit after  self-cal, rms=0.309206Jy  sigma=1.478157
! clrmod: Cleared the established, tentative and continuum models.
! Redundant starting model cleared.
uvw 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.
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.317 mas, bmaj=25.18 mas, bpa=44.33 degrees
! Estimated noise=14.868 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.968971 Jy
! Component: 100  -  total flux cleaned = 1.10172 Jy
! Total flux subtracted in 100 components = 1.10172 Jy
! Clean residual min=-0.076140 max=0.076652 Jy/beam
! Clean residual mean=0.000054 rms=0.042521 Jy/beam
! Combined flux in latest and established models = 1.10172 Jy
! Performing phase self-cal
! Adding 7 model components to the UV plane model.
! The established model now contains 7 components and 1.10172 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Fit before self-cal, rms=0.190213Jy  sigma=0.847176
! Fit after  self-cal, rms=0.189948Jy  sigma=0.846223
! Inverting map 
print "============== Finished uniform weighting clean ==============="
! ============== Finished uniform weighting clean =============== 
! 
uvw 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
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! Estimated beam: bmin=3.529 mas, bmaj=23.22 mas, bpa=45.07 degrees
! Estimated noise=11.8794 mJy/beam.
repeat
  if (peak(flux) > flux_cutoff) peakwin win_mult
  clean clean_niter,clean_gain
  flux_cutoff = imstat(rms) * dynam
  selfcal
  new_peak = peak(flux)
  until(new_peak<=flux_cutoff)
! clean: niter=200  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = -0.0776006 Jy
! Component: 100  -  total flux cleaned = -0.100562 Jy
! Component: 150  -  total flux cleaned = -0.0942403 Jy
! Component: 200  -  total flux cleaned = -0.0754118 Jy
! Total flux subtracted in 200 components = -0.0754118 Jy
! Clean residual min=-0.071619 max=0.069156 Jy/beam
! Clean residual mean=0.000117 rms=0.019829 Jy/beam
! Combined flux in latest and established models = 1.02631 Jy
! Performing phase self-cal
! Adding 37 model components to the UV plane model.
! The established model now contains 44 components and 1.02631 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Fit before self-cal, rms=0.134140Jy  sigma=0.646749
! Fit after  self-cal, rms=0.128017Jy  sigma=0.619405
! Inverting map 
print "============== Finished natural weighting clean =============="
! ============== Finished natural weighting clean ============== 
! 
restore
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 3.529 x 23.22 at 45.07 degrees (North through East)
! Clean map  min=-0.049061  max=1.1264 Jy/beam
gscale true
! Performing overall amplitude self-cal
! 
! Correcting IF 1.
!  A total of 48 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   HN        0.00*    NL        0.00*    SC        0.00*    
! 
! 
! Correcting IF 2.
!  A total of 48 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   HN        0.00*    NL        0.00*    SC        0.00*    
! 
! 
! Correcting IF 3.
!  A total of 48 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   HN        0.00*    NL        0.00*    SC        0.00*    
! 
! 
! Fit before self-cal, rms=0.128017Jy  sigma=0.619405
! Fit after  self-cal, rms=0.000000Jy  sigma=-nan
dynam = dynam - 0.5
flux_cutoff = imstat(rms) * dynam
! Inverting map and beam 
! There are no unflagged visibilities to be inverted.
! Error occurred in function: imstat().
![Exited script file: /opt64/bin/pima_mupet_01.dfm]
! 
wmap   /image_prod/ug002_uva//J0836-2016_S_n_map.fits
! Inverting map and beam 
! There are no unflagged visibilities to be inverted.
! Error occured in command: wmap
! 
wmodel /image_prod/ug002_uva//J0836-2016_S_n_map.mod
! Writing 44 model components to file: /image_prod/ug002_uva//J0836-2016_S_n_map.mod
wobs   /image_prod/ug002_uva//J0836-2016_S_n_uvs.fits
! Writing UV FITS file: /image_prod/ug002_uva//J0836-2016_S_n_uvs.fits
wwins  /image_prod/ug002_uva//J0836-2016_S_n_map.win
! wwins: No CLEAN windows to write.
! Error occured in command: wwins
! 
float peak_flux
peak_flux = peak(flux,max)
! Inverting map and beam 
! There are no unflagged visibilities to be inverted.
! Error occurred in function: peak().
! 
print "The peak flux is", peak_flux
! The peak flux is 0 
invert
! Inverting map and beam 
! There are no unflagged visibilities to be inverted.
! Error occured in command: invert
! 
float image_rms
image_rms = imstat(rms)
! Inverting map and beam 
! There are no unflagged visibilities to be inverted.
! Error occurred in function: imstat().
! 
print "The final image rms is",image_rms
! The final image rms is 0 
loglevs 100*3*image_rms/peak_flux
! Division by zero error.
! 
print "clev=      ", int(3*image_rms*10000)/10000
! clev=       0 
print "peak=      ", int(1000*peak_flux)/1000
! peak=       0 
print "dyn_range= ", int(1000*peak_flux/image_rms)/1000
! Division by zero error.
! 
quit
! Quitting program
! Log file /image_prod/ug002_uva//J0836-2016_S_n_dfm.log closed on Wed Mar  4 22:29:12 2020