! Started logfile: /g0/scr/pima/npcsb_uvs/J1901+8623_X_uvs.log on Wed Sep 25 00:07:34 2013 obs /g0/scr/pima/npcsb_uvs/J1901+8623_X_uva.fits ! Reading UV FITS file: /g0/scr/pima/npcsb_uvs/J1901+8623_X_uva.fits ! AN table 1: 45 integrations on 10 of 10 possible baselines. ! Apparent sampling: 0.493333 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J1901+8623 ! ! 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 8.40993e+09 8e+06 1 8e+06 ! 02 2 8.47993e+09 8e+06 1 8e+06 ! 03 3 8.79493e+09 8e+06 1 8e+06 ! 04 4 8.89993e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 0 lines of history. ! ! Reading 888 visibilities. select RR ! 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 print "field_size =",field_size ! field_size = 1024 print "field_cell =",field_cell ! field_cell = 0.2 print "taper_size =",taper_size ! taper_size = 70 ![@/home/lpetrov/bin/01_muppet /g0/scr/pima/npcsb_uvs/J1901+8623_X] 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 mapsize field_size, field_cell ! Map grid = 1024x1024 pixels with 0.200x0.200 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 90 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 90 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 90 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 90 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=1.008763Jy sigma=2.539359 ! Fit after self-cal, rms=0.939880Jy sigma=2.423991 ! 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=9.33 mas, bmaj=16.03 mas, bpa=29.67 degrees ! Estimated noise=18.1871 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 = 0.0502792 Jy ! Component: 100 - total flux cleaned = 0.0592142 Jy ! Total flux subtracted in 100 components = 0.0592142 Jy ! Clean residual min=-0.003708 max=0.003685 Jy/beam ! Clean residual mean=-0.000040 rms=0.002062 Jy/beam ! Combined flux in latest and established models = 0.0592143 Jy ! Performing phase self-cal ! Adding 23 model components to the UV plane model. ! The established model now contains 23 components and 0.0592143 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.050798Jy sigma=0.127139 ! Fit after self-cal, rms=0.050407Jy sigma=0.126296 ! 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=7.296 mas, bmaj=18.6 mas, bpa=36.63 degrees ! Estimated noise=11.9033 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 = 0.00145799 Jy ! Component: 100 - total flux cleaned = 0.00213823 Jy ! Component: 150 - total flux cleaned = 0.00207107 Jy ! Component: 200 - total flux cleaned = 0.00218156 Jy ! Total flux subtracted in 200 components = 0.00218156 Jy ! Clean residual min=-0.000672 max=0.000672 Jy/beam ! Clean residual mean=0.000007 rms=0.000221 Jy/beam ! Combined flux in latest and established models = 0.0613958 Jy ! Performing phase self-cal ! Adding 63 model components to the UV plane model. ! The established model now contains 86 components and 0.0613958 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.050318Jy sigma=0.125937 ! Fit after self-cal, rms=0.050355Jy sigma=0.125914 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 135 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* OV 0.00* ! PT 0.00* ! ! ! Correcting IF 2. ! A total of 135 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* OV 0.00* ! PT 0.00* ! ! ! Correcting IF 3. ! A total of 135 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* OV 0.00* ! PT 0.00* ! ! ! Correcting IF 4. ! A total of 135 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* OV 0.00* ! PT 0.00* ! ! ! Fit before self-cal, rms=0.050355Jy sigma=0.125914 ! 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: /home/lpetrov/bin/01_muppet] ! wmap "/g0/scr/pima/npcsb_uvs/J1901+8623_X\_map.fits" ! Inverting map and beam ! There are no unflagged visibilities to be inverted. ! Error occured in command: wmap ! 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 quit ! Quitting program ! Log file /g0/scr/pima/npcsb_uvs/J1901+8623_X_uvs.log closed on Wed Sep 25 00:07:34 2013