! Started logfile: /scr/pima/rv126_uvs/J1237-5046_S_dfm.log on Sun Dec 23 07:39:04 2018 float field_size field_size = 1024 float field_cell field_cell = 0.5000 float taper_size taper_size = 20.0 float freq freq = 2.24075 obs /scr/pima/rv126_uvs/J1237-5046_S_uva.fits ! Reading UV FITS file: /scr/pima/rv126_uvs/J1237-5046_S_uva.fits ! AN table 1: 16 integrations on 3 of 3 possible baselines. ! Apparent sampling: 1 visibilities/baseline/integration-bin. ! Found source: J1237-5046 ! ! 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 2.24075e+09 8e+06 1 8e+06 ! 02 2 2.27075e+09 8e+06 1 8e+06 ! 03 3 2.36075e+09 8e+06 1 8e+06 ! 04 4 2.38075e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 69 lines of history. ! ! Reading 192 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 4 channels. ! 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 ![@/opt64/bin/pima_mupet_01.dfm J1237-5046_S] 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. ! ! Correcting IF 2. ! ! Correcting IF 3. ! A total of 48 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=1.121527Jy sigma=11.745964 ! Fit after self-cal, rms=0.710287Jy sigma=7.697038 ! 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=2.062 mas, bmaj=58.9 mas, bpa=-6.485 degrees ! Estimated noise=9.46455 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 = 0.175659 Jy ! Component: 100 - total flux cleaned = 0.192584 Jy ! Total flux subtracted in 100 components = 0.192584 Jy ! Clean residual min=-0.035267 max=0.036178 Jy/beam ! Clean residual mean=-0.000005 rms=0.015155 Jy/beam ! Combined flux in latest and established models = 0.192584 Jy ! Performing phase self-cal ! Adding 21 model components to the UV plane model. ! The established model now contains 21 components and 0.192584 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.132841Jy sigma=1.306360 ! Fit after self-cal, rms=0.131340Jy sigma=1.298126 ! 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=2.366 mas, bmaj=46.02 mas, bpa=-6.811 degrees ! Estimated noise=5.63139 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 = 0.00747236 Jy ! Component: 100 - total flux cleaned = -0.00636083 Jy ! Component: 150 - total flux cleaned = -0.000412754 Jy ! Component: 200 - total flux cleaned = 0.00867026 Jy ! Total flux subtracted in 200 components = 0.00867026 Jy ! Clean residual min=-0.008670 max=0.008739 Jy/beam ! Clean residual mean=-0.000011 rms=0.003769 Jy/beam ! Combined flux in latest and established models = 0.201254 Jy ! Performing phase self-cal ! Adding 61 model components to the UV plane model. ! The established model now contains 79 components and 0.201254 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.082942Jy sigma=0.832662 ! Fit after self-cal, rms=0.080515Jy sigma=0.822065 ! Inverting map print "============== Finished natural weighting clean ==============" ! ============== Finished natural weighting clean ============== ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.366 x 46.02 at -6.811 degrees (North through East) ! Clean map min=-0.042807 max=0.16559 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: ! FD 0.00* KP 0.00* MK 0.00* ! ! ! Correcting IF 2. ! A total of 48 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* MK 0.00* ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* MK 0.00* ! ! ! Correcting IF 4. ! A total of 48 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* MK 0.00* ! ! ! Fit before self-cal, rms=0.080515Jy sigma=0.822065 ! 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 /scr/pima/rv126_uvs/J1237-5046_S_map.fits ! Inverting map and beam ! There are no unflagged visibilities to be inverted. ! Error occured in command: wmap ! wmodel /scr/pima/rv126_uvs/J1237-5046_S_map.mod ! Writing 79 model components to file: /scr/pima/rv126_uvs/J1237-5046_S_map.mod wobs /scr/pima/rv126_uvs/J1237-5046_S_uvs.fits ! Writing UV FITS file: /scr/pima/rv126_uvs/J1237-5046_S_uvs.fits wwins /scr/pima/rv126_uvs/J1237-5046_S_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 /scr/pima/rv126_uvs/J1237-5046_S_dfm.log closed on Sun Dec 23 07:39:05 2018