! Started logfile: J2257-3627_X_2002_05_14_yyk_uvs.log on Tue Jun 26 23:23:10 2007 obs J2257-3627_X_2002_05_14_yyk_uva.fits ! Reading UV FITS file: J2257-3627_X_2002_05_14_yyk_uva.fits ! AN table 1: 37 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.78018 visibilities/baseline/integration-bin. ! Found source: J2257-3627 ! ! 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 8.40947e+09 8e+06 1 8e+06 ! 02 2 8.47947e+09 8e+06 1 8e+06 ! 03 3 8.79447e+09 8e+06 1 8e+06 ! 04 4 8.89947e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 1077 lines of history. ! ! Reading 5196 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 ![@muppet J2257-3627_X_2002_05_14_yyk] integer clean_niter clean_niter = 100 float clean_gain clean_gain = 0.04 float dynam dynam = 6.0 float amp_soltime1 amp_soltime1 = 10 float amp_soltime2 amp_soltime2 = 1 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 = 0.10 float win_mult win_mult = 1.8 float time_av time_av = 30 float old_peak float new_peak float flux_cutoff mapsize field_size, field_cell ! Map grid = 512x512 pixels with 0.200x0.200 milli-arcsec cellsize. phase_soltime=phase_soltime1 print "uvstat(rms)=",uvstat(rms),"Jy" ! uvstat(rms)= 0.320552 Jy 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=0.7066 mas, bmaj=3.794 mas, bpa=-16.26 degrees ! Estimated noise=3046.97 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=100 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.099903 Jy ! Component: 100 - total flux cleaned = 0.16248 Jy ! Total flux subtracted in 100 components = 0.16248 Jy ! Clean residual min=-0.026765 max=0.027008 Jy/beam ! Clean residual mean=-0.001610 rms=0.010617 Jy/beam ! Combined flux in latest and established models = 0.16248 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 44 model components to the UV plane model. ! The established model now contains 44 components and 0.16248 Jy ! ! Correcting IF 1. ! A total of 42 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 42 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 42 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 42 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.293978Jy sigma=0.001726 ! Fit after self-cal, rms=0.293758Jy sigma=0.001725 ! Inverting map and beam ! Estimated beam: bmin=0.7066 mas, bmaj=3.794 mas, bpa=-16.26 degrees ! Estimated noise=3047.36 mJy/beam. 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=0.9626 mas, bmaj=4.937 mas, bpa=-17.78 degrees ! Estimated noise=1498.87 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 = 0.0862109 Jy ! Component: 100 - total flux cleaned = 0.151005 Jy ! Component: 150 - total flux cleaned = 0.192554 Jy ! Component: 200 - total flux cleaned = 0.218372 Jy ! Total flux subtracted in 200 components = 0.218372 Jy ! Clean residual min=-0.019691 max=0.019719 Jy/beam ! Clean residual mean=-0.002431 rms=0.012209 Jy/beam ! Combined flux in latest and established models = 0.380852 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 144 model components to the UV plane model. ! The established model now contains 187 components and 0.380853 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.277284Jy sigma=0.001513 ! Fit after self-cal, rms=0.276946Jy sigma=0.001511 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.9626 x 4.937 at -17.78 degrees (North through East) ! Clean map min=-0.021896 max=0.099476 Jy/beam if(peak(flux) < thresh*2) selflims ampcor_selflim end if ! Selfcal amplitude corrections will be limited to 0.833333 -> 1.2. ! Selfcal phase corrections will not be limited. gscale ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.00* HN 1.00* KP 1.00* ! LA 1.00* NL 1.00* OV 1.00* PT 1.00* ! SC 1.00* MK 1.00* ! ! ! Correcting IF 2. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.00* HN 1.00* KP 1.00* ! LA 1.00* NL 1.00* OV 1.00* PT 1.00* ! SC 1.00* MK 1.00* ! ! ! Correcting IF 3. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.00* HN 1.00* KP 1.00* ! LA 1.00* NL 1.00* OV 1.00* PT 1.00* ! SC 1.00* MK 1.00* ! ! ! Correcting IF 4. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.00* HN 1.00* KP 1.00* ! LA 1.00* NL 1.00* OV 1.00* PT 1.00* ! SC 1.00* MK 1.00* ! ! ! Fit before self-cal, rms=0.276946Jy sigma=0.001511 ! Fit after self-cal, rms=0.276946Jy sigma=0.001511 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. ! ! Fit before self-cal, rms=0.276946Jy sigma=0.001511 ! Fit after self-cal, rms=0.276946Jy sigma=0.001511 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=0.9626 mas, bmaj=4.937 mas, bpa=-17.78 degrees ! Estimated noise=1498.87 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 = 0.0263432 Jy ! Component: 100 - total flux cleaned = 0.0341047 Jy ! Component: 150 - total flux cleaned = 0.044369 Jy ! Component: 200 - total flux cleaned = 0.0482347 Jy ! Total flux subtracted in 200 components = 0.0482347 Jy ! Clean residual min=-0.011663 max=0.011683 Jy/beam ! Clean residual mean=-0.001558 rms=0.007872 Jy/beam ! Combined flux in latest and established models = 0.429087 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 140 model components to the UV plane model. ! The established model now contains 319 components and 0.429087 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272265Jy sigma=0.001456 ! Fit after self-cal, rms=0.272187Jy sigma=0.001456 ! Inverting map print "************** FINISHED AMPLITUDE GSCALE SELF-CAL **************" ! ************** FINISHED AMPLITUDE GSCALE SELF-CAL ************** ! phase_soltime=phase_soltime2 selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272187Jy sigma=0.001456 ! Fit after self-cal, rms=0.270629Jy sigma=0.001444 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map 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 = 0.000113587 Jy ! Component: 100 - total flux cleaned = -0.00224078 Jy ! Component: 150 - total flux cleaned = -0.00591436 Jy ! Component: 200 - total flux cleaned = -0.0118188 Jy ! Total flux subtracted in 200 components = -0.0118188 Jy ! Clean residual min=-0.007825 max=0.007849 Jy/beam ! Clean residual mean=-0.001008 rms=0.005379 Jy/beam ! Combined flux in latest and established models = 0.417268 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 115 model components to the UV plane model. ! The established model now contains 424 components and 0.417268 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.268600Jy sigma=0.001420 ! Fit after self-cal, rms=0.268386Jy sigma=0.001418 ! Inverting map print "*** FINISHED NATURAL WEIGHTING CLEAN with shorter phase_soltime ***" ! *** FINISHED NATURAL WEIGHTING CLEAN with shorter phase_soltime *** ! dynam = dynam - 0.25 restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.9626 x 4.937 at -17.78 degrees (North through East) ! Clean map min=-0.01582 max=0.091532 Jy/beam if(peak(flux) > thresh) selfcal true, true, amp_soltime1 selfcal false, false, phase_soltime 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) selfcal true, true, amp_soltime2 selfcal false, false, phase_soltime 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) print "************** FINISHED AMPLITUDE SELF-CAL **************" end if uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 70 mega-wavelengths. win_mult = win_mult * 1.4 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.567 mas, bmaj=10.77 mas, bpa=1.13 degrees ! Estimated noise=1785.18 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 = 0.0168983 Jy ! Component: 100 - total flux cleaned = 0.0236222 Jy ! Component: 150 - total flux cleaned = 0.0223981 Jy ! Component: 200 - total flux cleaned = 0.020116 Jy ! Total flux subtracted in 200 components = 0.020116 Jy ! Clean residual min=-0.006702 max=0.006750 Jy/beam ! Clean residual mean=-0.000883 rms=0.004904 Jy/beam ! Combined flux in latest and established models = 0.437384 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 155 model components to the UV plane model. ! The established model now contains 569 components and 0.437385 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.267391Jy sigma=0.001406 ! Fit after self-cal, rms=0.267420Jy sigma=0.001405 ! Inverting map uvtaper 0 ! No UV-taper is currently set. win_mult = win_mult / 1.4 print "************** FINISHED TAPERING SELF-CAL CLEAN **************" ! ************** FINISHED TAPERING SELF-CAL CLEAN ************** ! print "************** CLEARING MODEL AND STARTING OVER **********" ! ************** CLEARING MODEL AND STARTING OVER ********** clrmod true,true,true ! clrmod: Cleared the established, tentative and continuum models. 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. clean clean_niter, clean_gain ! Inverting map and beam ! Estimated beam: bmin=0.7066 mas, bmaj=3.794 mas, bpa=-16.26 degrees ! Estimated noise=3047.36 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.107807 Jy ! Component: 100 - total flux cleaned = 0.1773 Jy ! Component: 150 - total flux cleaned = 0.228193 Jy ! Component: 200 - total flux cleaned = 0.264023 Jy ! Total flux subtracted in 200 components = 0.264023 Jy ! Clean residual min=-0.019049 max=0.019347 Jy/beam ! Clean residual mean=-0.001323 rms=0.008156 Jy/beam ! Combined flux in latest and established models = 0.264023 Jy 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. flux_cutoff = imstat(rms) * dynam ! Adding 71 model components to the UV plane model. ! The established model now contains 71 components and 0.264023 Jy ! Inverting map and beam ! Estimated beam: bmin=0.9626 mas, bmaj=4.937 mas, bpa=-17.78 degrees ! Estimated noise=1498.87 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam keep new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0672666 Jy ! Component: 100 - total flux cleaned = 0.109977 Jy ! Component: 150 - total flux cleaned = 0.128112 Jy ! Component: 200 - total flux cleaned = 0.139377 Jy ! Total flux subtracted in 200 components = 0.139377 Jy ! Clean residual min=-0.016238 max=0.016238 Jy/beam ! Clean residual mean=-0.001981 rms=0.010136 Jy/beam ! Combined flux in latest and established models = 0.4034 Jy ! Adding 127 model components to the UV plane model. ! The established model now contains 195 components and 0.4034 Jy ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 70 mega-wavelengths. flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.567 mas, bmaj=10.77 mas, bpa=1.13 degrees ! Estimated noise=1785.18 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam keep new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0355109 Jy ! Component: 100 - total flux cleaned = 0.05465 Jy ! Component: 150 - total flux cleaned = 0.061959 Jy ! Component: 200 - total flux cleaned = 0.0598848 Jy ! Total flux subtracted in 200 components = 0.0598848 Jy ! Clean residual min=-0.012283 max=0.012115 Jy/beam ! Clean residual mean=-0.001713 rms=0.008845 Jy/beam ! Combined flux in latest and established models = 0.463285 Jy ! Adding 159 model components to the UV plane model. ! The established model now contains 345 components and 0.463285 Jy ! Inverting map uvtaper 0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=0.9626 mas, bmaj=4.937 mas, bpa=-17.78 degrees ! Estimated noise=1498.87 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = -0.00506867 Jy ! Component: 100 - total flux cleaned = -0.0117985 Jy ! Component: 150 - total flux cleaned = -0.0171403 Jy ! Component: 200 - total flux cleaned = -0.0224298 Jy ! Total flux subtracted in 200 components = -0.0224298 Jy ! Clean residual min=-0.005749 max=0.005731 Jy/beam ! Clean residual mean=-0.000664 rms=0.003645 Jy/beam ! Combined flux in latest and established models = 0.440855 Jy selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! Adding 82 model components to the UV plane model. ! The established model now contains 426 components and 0.440855 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.267251Jy sigma=0.001407 ! Fit after self-cal, rms=0.267165Jy sigma=0.001406 wmodel J2257-3627_X_2002_05_14_yyk\_map.mod ! Writing 426 model components to file: J2257-3627_X_2002_05_14_yyk_map.mod wobs J2257-3627_X_2002_05_14_yyk\_uvs.fits ! Writing UV FITS file: J2257-3627_X_2002_05_14_yyk_uvs.fits wwins J2257-3627_X_2002_05_14_yyk\_map.win ! wwins: No CLEAN windows to write. ! Error occured in command: wwins ![Exited script file: muppet] ! wmap "J2257-3627_X_2002_05_14_yyk\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.9626 x 4.937 at -17.78 degrees (North through East) ! Clean map min=-0.013209 max=0.092305 Jy/beam ! Writing clean map to FITS file: J2257-3627_X_2002_05_14_yyk_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.0923048 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.00362021 device "J2257-3627_X_2002_05_14_yyk\_map.eps/VPS" ! Attempting to open device: 'J2257-3627_X_2002_05_14_yyk_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -11.766 11.766 23.5321 47.0642 94.1283 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0108 print "peak=",int(peak_flux*1000)/1000 ! peak= 0.092 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.9626 x 4.937 at -17.78 degrees (North through East) ! Clean map min=-0.013209 max=0.092305 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J2257-3627_X_2002_05_14_yyk\_map.gif/gif" ! Attempting to open device: 'J2257-3627_X_2002_05_14_yyk_map.gif/gif' mapplot cln quit ! Quitting program ! Log file J2257-3627_X_2002_05_14_yyk_uvs.log closed on Tue Jun 26 23:23:15 2007