! Started logfile: /vlbi/vcs9/uvm//J1209+1544_C_a_dfm.log on Tue Dec 26 22:22:09 2017 float field_size field_size = 1024 float field_cell field_cell = 0.3000 float taper_size taper_size = 40.0 float freq freq = 4.12800 obs /vlbi/vcs9/uvm//J1209+1544_C_a_uvm.fits ! Reading UV FITS file: /vlbi/vcs9/uvm//J1209+1544_C_a_uvm.fits ! AN table 1: 21 integrations on 3 of 3 possible baselines. ! AN table 2: 17 integrations on 3 of 3 possible baselines. ! AN table 3: 17 integrations on 3 of 3 possible baselines. ! Apparent sampling: 0.951515 visibilities/baseline/integration-bin. ! Found source: J1209+1544 ! ! There are 8 IFs, and a total of 8 channels: ! ! IF Channel Frequency Freq offset Number of Overall IF ! origin at origin per channel channels bandwidth ! ------------------------------------------------------------- (Hz) ! 01 1 4.128e+09 3.2e+07 1 3.2e+07 ! 02 2 4.16e+09 3.2e+07 1 3.2e+07 ! 03 3 4.192e+09 3.2e+07 1 3.2e+07 ! 04 4 4.224e+09 3.2e+07 1 3.2e+07 ! 05 5 4.416e+09 3.2e+07 1 3.2e+07 ! 06 6 4.512e+09 3.2e+07 1 3.2e+07 ! 07 7 4.544e+09 3.2e+07 1 3.2e+07 ! 08 8 4.576e+09 3.2e+07 1 3.2e+07 ! ! Polarization(s): RR ! ! Read 94 lines of history. ! ! Reading 1256 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 8 channels. ! Selecting polarization: RR, channels: 1..8 ! Reading IF 1 channels: 1..1 ! Reading IF 2 channels: 2..2 ! Reading IF 3 channels: 3..3 ! Reading IF 4 channels: 4..4 ! Reading IF 5 channels: 5..5 ! Reading IF 6 channels: 6..6 ! Reading IF 7 channels: 7..7 ! Reading IF 8 channels: 8..8 print "field_size =", field_size ! field_size = 1024 print "field_cell =", field_cell ! field_cell = 0.3 print "taper_size =", taper_size ! taper_size = 40 ![@/opt64/bin/pima_mupet_02.dfm J1209+1544_C] integer clean_niter clean_niter = 100 float clean_gain clean_gain = 0.04 float dynam dynam = 6.0 float amp_soltime1 amp_soltime1 = 60 float amp_soltime2 amp_soltime2 = 5 float phase_soltime1 phase_soltime1=10 float phase_soltime2 phase_soltime2=0.5 float phase_soltime phase_soltime=phase_soltime1 float ampcor_selflim ampcor_selflim=1.20 float thresh thresh = 0.1 float win_mult win_mult = 1.8 float time_av time_av = 30 float old_peak float new_peak float flux_cutoff print "===============================================================" ! =============================================================== ! print "=== Difmap script: pima_mupet_02.dvm version of 2017.12.26 === " ! === Difmap script: pima_mupet_02.dvm version of 2017.12.26 === ! mapsize field_size, field_cell ! Map grid = 1024x1024 pixels with 0.300x0.300 milli-arcsec cellsize. phase_soltime=phase_soltime1 print "uvstat(rms)=",uvstat(rms),"Jy" ! uvstat(rms)= 0.0256354 Jy 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 12 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 12 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 12 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 12 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 5. ! A total of 12 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 6. ! A total of 12 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 7. ! A total of 12 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 8. ! A total of 12 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=1.002053Jy sigma=31.255714 ! Fit after self-cal, rms=0.982452Jy sigma=30.816149 ! 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. peakwin win_mult ! Inverting map and beam ! Estimated beam: bmin=5.27 mas, bmaj=14.51 mas, bpa=70.47 degrees ! Estimated noise=0.933509 mJy/beam. ! Added new window around map position (0, 0). flux_cutoff = imstat(rms) * dynam repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal false,false,phase_soltime new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=100 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0153757 Jy ! Component: 100 - total flux cleaned = 0.0166678 Jy ! Total flux subtracted in 100 components = 0.0166678 Jy ! Clean residual min=-0.001910 max=0.001803 Jy/beam ! Clean residual mean=0.000005 rms=0.000587 Jy/beam ! Combined flux in latest and established models = 0.0166678 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 15 model components to the UV plane model. ! The established model now contains 15 components and 0.0166678 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Correcting IF 5. ! ! Correcting IF 6. ! ! Correcting IF 7. ! ! Correcting IF 8. ! ! Fit before self-cal, rms=0.018309Jy sigma=0.532149 ! Fit after self-cal, rms=0.018269Jy sigma=0.530756 ! Inverting map print "============== Finished uniform weighting CLEAN ==============" ! ============== Finished uniform weighting CLEAN ============== ! uvw 0,-2 ! Uniform weighting is not currently selected. ! Gridding weights will be scaled by errors raised to the power -2. ! 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=6.736 mas, bmaj=15.96 mas, bpa=67.84 degrees ! Estimated noise=0.644807 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal false,false,phase_soltime new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.000724537 Jy ! Component: 100 - total flux cleaned = 0.000709737 Jy ! Component: 150 - total flux cleaned = 0.000699062 Jy ! Component: 200 - total flux cleaned = 0.000698368 Jy ! Total flux subtracted in 200 components = 0.000698368 Jy ! Clean residual min=-0.001142 max=0.001158 Jy/beam ! Clean residual mean=0.000002 rms=0.000344 Jy/beam ! Combined flux in latest and established models = 0.0173661 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 34 model components to the UV plane model. ! The established model now contains 49 components and 0.0173661 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Correcting IF 5. ! ! Correcting IF 6. ! ! Correcting IF 7. ! ! Correcting IF 8. ! ! Fit before self-cal, rms=0.018244Jy sigma=0.529900 ! Fit after self-cal, rms=0.018244Jy sigma=0.529885 ! Inverting map print "============== Finished natural weighting CLEAN ==============" ! ============== Finished natural weighting CLEAN ============== ! gscale ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Correcting IF 2. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Correcting IF 3. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Correcting IF 4. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Correcting IF 5. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Correcting IF 6. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Correcting IF 7. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Correcting IF 8. ! A total of 51 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! FD 0.00* KP 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 2. ! Amplitude normalization factor in sub-array 2: 1 ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* LA 0.00* PT 0.00* ! ! A total of 51 telescope corrections were flagged in sub-array 3. ! Amplitude normalization factor in sub-array 3: 1 ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* KP 0.00* OV 0.00* ! ! ! Fit before self-cal, rms=0.018244Jy sigma=0.529885 ! Fit after self-cal, rms=0.000000Jy sigma=-nan selfcal false, false, phase_soltime ! Performing phase self-cal over 10 minute time intervals ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Correcting IF 5. ! ! Correcting IF 6. ! ! Correcting IF 7. ! ! Correcting IF 8. ! ! Fit before self-cal, rms=0.000000Jy sigma=-nan ! 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_02.dfm] ! wmap /vlbi/vcs9/uvm//J1209+1544_C_a_map.fits ! Inverting map and beam ! There are no unflagged visibilities to be inverted. ! Error occured in command: wmap ! wmodel /vlbi/vcs9/uvm//J1209+1544_C_a_map.mod ! Writing 49 model components to file: /vlbi/vcs9/uvm//J1209+1544_C_a_map.mod wobs /vlbi/vcs9/uvm//J1209+1544_C_a_uvs.fits ! Writing UV FITS file: /vlbi/vcs9/uvm//J1209+1544_C_a_uvs.fits wwins /vlbi/vcs9/uvm//J1209+1544_C_a_map.win ! wwins: Wrote 1 windows to /vlbi/vcs9/uvm//J1209+1544_C_a_map.win 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 /vlbi/vcs9/uvm//J1209+1544_C_a_dfm.log closed on Tue Dec 26 22:22:09 2017