! Started logfile: J1950-0436_X_1997_05_07_yyk_uvs.log on Mon Jan 8 09:48:26 2007 obs J1950-0436_X_1997_05_07_yyk_uva.fits ! Reading UV FITS file: J1950-0436_X_1997_05_07_yyk_uva.fits ! AN table 1: 104 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.914103 visibilities/baseline/integration-bin. ! Found source: J1950-0436 ! ! 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 8.15447e+09 8e+06 1 8e+06 ! 02 2 8.23447e+09 8e+06 1 8e+06 ! 03 3 8.41447e+09 8e+06 1 8e+06 ! 04 4 8.55447e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 614 lines of history. ! ! Reading 17112 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 J1950-0436_X_1997_05_07_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)= 81.4664 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=0.72 mas, bmaj=1.834 mas, bpa=-1.37 degrees ! Estimated noise=1600.29 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 = -0.18028 Jy ! Component: 100 - total flux cleaned = -0.347134 Jy ! Total flux subtracted in 100 components = -0.347134 Jy ! Clean residual min=-2.075478 max=2.075098 Jy/beam ! Clean residual mean=-0.000248 rms=0.896487 Jy/beam ! Combined flux in latest and established models = -0.347134 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 64 model components to the UV plane model. ! The established model now contains 64 components and -0.347134 Jy ! ! Correcting IF 1. ! A total of 51 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 51 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 51 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 121 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=81.369530Jy sigma=0.529795 ! Fit after self-cal, rms=81.378906Jy sigma=0.529857 ! Inverting map and beam ! Estimated beam: bmin=0.72 mas, bmaj=1.834 mas, bpa=-1.37 degrees ! Estimated noise=1600.51 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=0.983 mas, bmaj=2.317 mas, bpa=-3.306 degrees ! Estimated noise=818.446 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 = 0.337212 Jy ! Component: 100 - total flux cleaned = 0.339639 Jy ! Component: 150 - total flux cleaned = 0.276934 Jy ! Component: 200 - total flux cleaned = 0.216342 Jy ! Total flux subtracted in 200 components = 0.216342 Jy ! Clean residual min=-0.764549 max=0.769183 Jy/beam ! Clean residual mean=-0.000323 rms=0.348742 Jy/beam ! Combined flux in latest and established models = -0.130793 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 99 model components to the UV plane model. ! The established model now contains 136 components and -0.130793 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=81.313179Jy sigma=0.529425 ! Fit after self-cal, rms=81.313080Jy sigma=0.529424 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.983 x 2.317 at -3.306 degrees (North through East) ! Clean map min=-1.0789 max=0.93077 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* MK 1.00* NL 1.00* OV 1.00* ! PT 1.00* SC 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* MK 1.00* NL 1.00* OV 1.00* ! PT 1.00* SC 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* MK 1.00* NL 1.00* OV 1.00* ! PT 1.00* SC 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* MK 1.00* NL 1.00* OV 1.00* ! PT 1.00* SC 1.00* ! ! ! Fit before self-cal, rms=81.313080Jy sigma=0.529424 ! Fit after self-cal, rms=81.313080Jy sigma=0.529424 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=81.313080Jy sigma=0.529424 ! Fit after self-cal, rms=81.313065Jy sigma=0.529424 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=0.983 mas, bmaj=2.317 mas, bpa=-3.306 degrees ! Estimated noise=818.446 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 = -0.122893 Jy ! Component: 100 - total flux cleaned = -0.0640024 Jy ! Component: 150 - total flux cleaned = -0.0628655 Jy ! Component: 200 - total flux cleaned = 0.112876 Jy ! Total flux subtracted in 200 components = 0.112876 Jy ! Clean residual min=-0.724346 max=0.721330 Jy/beam ! Clean residual mean=-0.000347 rms=0.333008 Jy/beam ! Combined flux in latest and established models = -0.0179165 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 112 model components to the UV plane model. ! The established model now contains 172 components and -0.0179165 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=81.256454Jy sigma=0.529052 ! Fit after self-cal, rms=81.256332Jy sigma=0.529051 ! 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=81.256332Jy sigma=0.529051 ! Fit after self-cal, rms=81.254227Jy sigma=0.529034 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 = 0.0627026 Jy ! Component: 100 - total flux cleaned = 0.0614193 Jy ! Component: 150 - total flux cleaned = 0.000960551 Jy ! Component: 200 - total flux cleaned = 0.00194304 Jy ! Total flux subtracted in 200 components = 0.00194304 Jy ! Clean residual min=-0.733429 max=0.733895 Jy/beam ! Clean residual mean=0.000316 rms=0.322838 Jy/beam ! Combined flux in latest and established models = -0.0159734 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 84 model components to the UV plane model. ! The established model now contains 234 components and -0.0159734 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=81.193794Jy sigma=0.528629 ! Fit after self-cal, rms=81.192886Jy sigma=0.528621 ! 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: 0.983 x 2.317 at -3.306 degrees (North through East) ! Clean map min=-0.98615 max=0.96325 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=2.491 mas, bmaj=4.178 mas, bpa=11.7 degrees ! Estimated noise=1005.27 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 = -0.0526163 Jy ! Component: 100 - total flux cleaned = -0.0528671 Jy ! Component: 150 - total flux cleaned = -0.0299916 Jy ! Component: 200 - total flux cleaned = 0.00672784 Jy ! Total flux subtracted in 200 components = 0.00672784 Jy ! Clean residual min=-0.089257 max=0.088797 Jy/beam ! Clean residual mean=0.000429 rms=0.040927 Jy/beam ! Combined flux in latest and established models = -0.00924554 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 66 model components to the UV plane model. ! The established model now contains 298 components and -0.00924555 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=81.187698Jy sigma=0.528588 ! Fit after self-cal, rms=81.185196Jy sigma=0.528569 ! 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=0.72 mas, bmaj=1.834 mas, bpa=-1.37 degrees ! Estimated noise=1600.51 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = -0.202105 Jy ! Component: 100 - total flux cleaned = -0.20449 Jy ! Component: 150 - total flux cleaned = -0.202504 Jy ! Component: 200 - total flux cleaned = -0.201408 Jy ! Total flux subtracted in 200 components = -0.201408 Jy ! Clean residual min=-1.979993 max=1.975659 Jy/beam ! Clean residual mean=-0.000114 rms=0.861251 Jy/beam ! Combined flux in latest and established models = -0.201408 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 92 model components to the UV plane model. ! The established model now contains 92 components and -0.201408 Jy ! Inverting map and beam ! Estimated beam: bmin=0.983 mas, bmaj=2.317 mas, bpa=-3.306 degrees ! Estimated noise=818.446 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 = 0.150671 Jy ! Component: 100 - total flux cleaned = 0.216622 Jy ! Component: 150 - total flux cleaned = 0.0295855 Jy ! Component: 200 - total flux cleaned = 0.274188 Jy ! Total flux subtracted in 200 components = 0.274188 Jy ! Clean residual min=-0.754230 max=0.752200 Jy/beam ! Clean residual mean=0.000148 rms=0.333191 Jy/beam ! Combined flux in latest and established models = 0.07278 Jy ! Adding 88 model components to the UV plane model. ! The established model now contains 156 components and 0.07278 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=2.491 mas, bmaj=4.178 mas, bpa=11.7 degrees ! Estimated noise=1005.27 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 = -0.0520177 Jy ! Component: 100 - total flux cleaned = -0.0721699 Jy ! Component: 150 - total flux cleaned = -0.081734 Jy ! Component: 200 - total flux cleaned = -0.0904424 Jy ! Total flux subtracted in 200 components = -0.0904424 Jy ! Clean residual min=-0.103583 max=0.105036 Jy/beam ! Clean residual mean=0.001168 rms=0.045312 Jy/beam ! Combined flux in latest and established models = -0.0176624 Jy ! Adding 61 model components to the UV plane model. ! The established model now contains 215 components and -0.0176624 Jy ! Inverting map uvtaper 0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=0.983 mas, bmaj=2.317 mas, bpa=-3.306 degrees ! Estimated noise=818.446 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.00114463 Jy ! Component: 100 - total flux cleaned = 0.119638 Jy ! Component: 150 - total flux cleaned = 0.120841 Jy ! Component: 200 - total flux cleaned = 0.176255 Jy ! Total flux subtracted in 200 components = 0.176255 Jy ! Clean residual min=-0.712924 max=0.700058 Jy/beam ! Clean residual mean=0.000363 rms=0.315452 Jy/beam ! Combined flux in latest and established models = 0.158592 Jy selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! Adding 100 model components to the UV plane model. ! The established model now contains 255 components and 0.158592 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=81.156113Jy sigma=0.528360 ! Fit after self-cal, rms=81.159058Jy sigma=0.528381 wmodel J1950-0436_X_1997_05_07_yyk\_map.mod ! Writing 255 model components to file: J1950-0436_X_1997_05_07_yyk_map.mod wobs J1950-0436_X_1997_05_07_yyk\_uvs.fits ! Writing UV FITS file: J1950-0436_X_1997_05_07_yyk_uvs.fits wwins J1950-0436_X_1997_05_07_yyk\_map.win ! wwins: No CLEAN windows to write. ! Error occured in command: wwins ![Exited script file: muppet] ! wmap "J1950-0436_X_1997_05_07_yyk\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.983 x 2.317 at -3.306 degrees (North through East) ! Clean map min=-1.1065 max=0.99476 Jy/beam ! Writing clean map to FITS file: J1950-0436_X_1997_05_07_yyk_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.994759 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.317777 device "J1950-0436_X_1997_05_07_yyk\_map.eps/VPS" ! Attempting to open device: 'J1950-0436_X_1997_05_07_yyk_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -95.8353 95.8353 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.9533 print "peak=",int(peak_flux*1000)/1000 ! peak= 0.994 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.983 x 2.317 at -3.306 degrees (North through East) ! Clean map min=-1.1065 max=0.99476 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1950-0436_X_1997_05_07_yyk\_map.gif/gif" ! Attempting to open device: 'J1950-0436_X_1997_05_07_yyk_map.gif/gif' mapplot cln quit ! Quitting program ! Log file J1950-0436_X_1997_05_07_yyk_uvs.log closed on Mon Jan 8 09:48:33 2007