! Started logfile: J1337-1257_S_2017_05_31_pus_uvs.log on Tue Feb 5 21:50:36 2019 obs J1337-1257_S_2017_05_31_pus_uva.fits ! Reading UV FITS file: J1337-1257_S_2017_05_31_pus_uva.fits ! AN table 1: 17 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.0614379 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J1337-1257 ! ! 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 2.23588e+09 3.2e+07 1 3.2e+07 ! 02 2 2.26788e+09 3.2e+07 1 3.2e+07 ! 03 3 2.29988e+09 3.2e+07 1 3.2e+07 ! 04 4 2.36388e+09 3.2e+07 1 3.2e+07 ! ! Polarization(s): RR ! ! Read 703 lines of history. ! ! Reading 188 visibilities. select I ! Polarization I is unavailable. ! 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 = 0.5 print "taper_size =",taper_size ! taper_size = 20 ![@muppet J1337-1257_S_2017_05_31_pus] 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 0.500x0.500 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 125 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 125 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 125 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 170 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.920858Jy sigma=0.005144 ! Fit after self-cal, rms=0.905931Jy sigma=0.005018 ! 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=3.52 mas, bmaj=28.77 mas, bpa=50.77 degrees ! Estimated noise=12170.6 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 = 1.45486 Jy ! Component: 100 - total flux cleaned = 1.67394 Jy ! Total flux subtracted in 100 components = 1.67394 Jy ! Clean residual min=-0.119526 max=0.120243 Jy/beam ! Clean residual mean=-0.000070 rms=0.053258 Jy/beam ! Combined flux in latest and established models = 1.67394 Jy ! Performing phase self-cal ! Adding 10 model components to the UV plane model. ! The established model now contains 10 components and 1.67394 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.266089Jy sigma=0.001439 ! Fit after self-cal, rms=0.266145Jy sigma=0.001439 ! 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=3.562 mas, bmaj=28.5 mas, bpa=49.82 degrees ! Estimated noise=11283.7 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 = 0.0384658 Jy ! Component: 100 - total flux cleaned = -0.0156535 Jy ! Component: 150 - total flux cleaned = -0.0767334 Jy ! Component: 200 - total flux cleaned = -0.167277 Jy ! Total flux subtracted in 200 components = -0.167277 Jy ! Clean residual min=-0.091705 max=0.090071 Jy/beam ! Clean residual mean=-0.000250 rms=0.026784 Jy/beam ! Combined flux in latest and established models = 1.50666 Jy ! Performing phase self-cal ! Adding 60 model components to the UV plane model. ! The established model now contains 67 components and 1.50666 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.179238Jy sigma=0.000964 ! Fit after self-cal, rms=0.179106Jy sigma=0.000962 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 45 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* OV 0.00* ! PT 0.00* SC 0.00* ! ! ! Correcting IF 2. ! A total of 45 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* OV 0.00* ! PT 0.00* SC 0.00* ! ! ! Correcting IF 3. ! A total of 45 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* OV 0.00* ! PT 0.00* SC 0.00* ! ! ! Correcting IF 4. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* OV 0.00* ! PT 0.00* SC 0.00* ! ! ! Fit before self-cal, rms=0.179106Jy sigma=0.000962 ! 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: muppet] ! wmap "J1337-1257_S_2017_05_31_pus\_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 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! Inverting map and beam ! There are no unflagged visibilities to be inverted. ! Error occured in command: mapplot ! quit ! Quitting program ! Log file J1337-1257_S_2017_05_31_pus_uvs.log closed on Tue Feb 5 21:50:37 2019