! Started logfile: /scr/pima/rv126_uvs/J2314-4455_S_dfm.log on Sun Dec 23 07:43:28 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/J2314-4455_S_uva.fits ! Reading UV FITS file: /scr/pima/rv126_uvs/J2314-4455_S_uva.fits ! AN table 1: 29 integrations on 3 of 3 possible baselines. ! Apparent sampling: 1 visibilities/baseline/integration-bin. ! Found source: J2314-4455 ! ! 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 348 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 J2314-4455_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. ! 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 87 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 3 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=1.372843Jy sigma=12.621282 ! Fit after self-cal, rms=0.461962Jy sigma=3.947304 ! 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=17.92 mas, bmaj=105.7 mas, bpa=2.526 degrees ! Estimated noise=6.11839 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 = 1.10873 Jy ! Component: 100 - total flux cleaned = 1.1322 Jy ! Total flux subtracted in 100 components = 1.1322 Jy ! Clean residual min=-0.133974 max=0.133124 Jy/beam ! Clean residual mean=0.003675 rms=0.088016 Jy/beam ! Combined flux in latest and established models = 1.1322 Jy ! Performing phase self-cal ! Adding 27 model components to the UV plane model. ! The established model now contains 27 components and 1.1322 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.207123Jy sigma=1.833580 ! Fit after self-cal, rms=0.207004Jy sigma=1.833349 ! 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=17.46 mas, bmaj=107 mas, bpa=4.652 degrees ! Estimated noise=4.51066 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 = -0.0137929 Jy ! Component: 100 - total flux cleaned = -0.0679835 Jy ! Component: 150 - total flux cleaned = -0.0757372 Jy ! Component: 200 - total flux cleaned = -0.0695503 Jy ! Total flux subtracted in 200 components = -0.0695503 Jy ! Clean residual min=-0.034279 max=0.034619 Jy/beam ! Clean residual mean=-0.000082 rms=0.014070 Jy/beam ! Combined flux in latest and established models = 1.06265 Jy ! Performing phase self-cal ! Adding 103 model components to the UV plane model. ! The established model now contains 129 components and 1.06265 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.111212Jy sigma=1.184668 ! Fit after self-cal, rms=0.109658Jy sigma=1.171058 ! Inverting map print "============== Finished natural weighting clean ==============" ! ============== Finished natural weighting clean ============== ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 17.46 x 107 at 4.652 degrees (North through East) ! Clean map min=-0.086919 max=1.2051 Jy/beam gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 84 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* ! ! ! Correcting IF 2. ! A total of 84 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* ! ! ! Correcting IF 4. ! A total of 84 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* LA 0.00* ! ! ! Fit before self-cal, rms=0.109658Jy sigma=1.171058 ! 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/J2314-4455_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/J2314-4455_S_map.mod ! Writing 129 model components to file: /scr/pima/rv126_uvs/J2314-4455_S_map.mod wobs /scr/pima/rv126_uvs/J2314-4455_S_uvs.fits ! Writing UV FITS file: /scr/pima/rv126_uvs/J2314-4455_S_uvs.fits wwins /scr/pima/rv126_uvs/J2314-4455_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/J2314-4455_S_dfm.log closed on Sun Dec 23 07:43:29 2018