! Started logfile: J1756-1427_S_2006_12_18_yyk_uvs.log on Mon Jun 16 20:15:35 2008 obs J1756-1427_S_2006_12_18_yyk_uve.fits ! Reading UV FITS file: J1756-1427_S_2006_12_18_yyk_uve.fits ! AN table 1: 15 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.444444 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J1756-1427 ! ! 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 2.23697e+09 8e+06 1 8e+06 ! 02 2 2.26697e+09 8e+06 1 8e+06 ! 03 3 2.35697e+09 8e+06 1 8e+06 ! 04 4 2.37697e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 2469 lines of history. ! ! Reading 1200 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 J1756-1427_S_2006_12_18_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 = 256x256 pixels with 1.00x1.00 milli-arcsec cellsize. phase_soltime=phase_soltime1 print "uvstat(rms)=",uvstat(rms),"Jy" ! uvstat(rms)= 0.123982 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=4.982 mas, bmaj=18.78 mas, bpa=-1.501 degrees ! Estimated noise=2.47258 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) ! Added new window around map position (0, 0). ! clean: niter=100 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0642916 Jy ! Component: 100 - total flux cleaned = 0.0828898 Jy ! Total flux subtracted in 100 components = 0.0828898 Jy ! Clean residual min=-0.010725 max=0.013165 Jy/beam ! Clean residual mean=0.000145 rms=0.003863 Jy/beam ! Combined flux in latest and established models = 0.0828898 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 13 model components to the UV plane model. ! The established model now contains 13 components and 0.0828898 Jy ! ! Correcting IF 1. ! A total of 60 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 81 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 84 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 70 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.096977Jy sigma=1.360186 ! Fit after self-cal, rms=0.083158Jy sigma=1.127780 ! Inverting map and beam ! Estimated beam: bmin=4.982 mas, bmaj=18.77 mas, bpa=-1.505 degrees ! Estimated noise=2.46955 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=7.301 mas, bmaj=19.63 mas, bpa=0.6365 degrees ! Estimated noise=1.61226 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 = 0.0196318 Jy ! Component: 100 - total flux cleaned = 0.0254804 Jy ! Component: 150 - total flux cleaned = 0.0280653 Jy ! Component: 200 - total flux cleaned = 0.0293406 Jy ! Total flux subtracted in 200 components = 0.0293406 Jy ! Clean residual min=-0.003458 max=0.004688 Jy/beam ! Clean residual mean=0.000046 rms=0.001171 Jy/beam ! Combined flux in latest and established models = 0.11223 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 46 model components to the UV plane model. ! The established model now contains 57 components and 0.112231 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.080559Jy sigma=1.061518 ! Fit after self-cal, rms=0.080536Jy sigma=1.061306 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.301 x 19.63 at 0.6365 degrees (North through East) ! Clean map min=-0.0034905 max=0.094006 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. ! A total of 3 telescope corrections were flagged in sub-array 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: 1.00961 ! Telescope amplitude corrections in sub-array 1: ! BR 0.92 FD 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00* NL 1.00* OV 1.01 ! PT 0.97 SC 1.00* ! ! ! Correcting IF 3. ! Amplitude normalization factor in sub-array 1: 0.991231 ! Telescope amplitude corrections in sub-array 1: ! BR 1.12 FD 1.00* HN 1.00* KP 1.03 ! LA 0.97 MK 1.00* NL 1.00* OV 0.91 ! PT 1.06 SC 1.00* ! ! ! Correcting IF 4. ! A total of 3 telescope corrections were flagged in sub-array 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* ! ! ! Fit before self-cal, rms=0.080536Jy sigma=1.061306 ! Fit after self-cal, rms=0.078866Jy sigma=1.059979 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=0.078866Jy sigma=1.059979 ! Fit after self-cal, rms=0.078865Jy sigma=1.059939 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=7.324 mas, bmaj=19.67 mas, bpa=0.7853 degrees ! Estimated noise=1.60254 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 = 0.000204035 Jy ! Component: 100 - total flux cleaned = 0.000230103 Jy ! Component: 150 - total flux cleaned = 0.000301756 Jy ! Component: 200 - total flux cleaned = 0.00034264 Jy ! Total flux subtracted in 200 components = 0.00034264 Jy ! Clean residual min=-0.003483 max=0.004537 Jy/beam ! Clean residual mean=0.000043 rms=0.001124 Jy/beam ! Combined flux in latest and established models = 0.112573 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 17 model components to the UV plane model. ! The established model now contains 72 components and 0.112573 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.078831Jy sigma=1.059618 ! Fit after self-cal, rms=0.078831Jy sigma=1.059595 ! 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=0.078831Jy sigma=1.059595 ! Fit after self-cal, rms=0.068647Jy sigma=0.922687 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 = 0.00456766 Jy ! Component: 100 - total flux cleaned = 0.00458393 Jy ! Component: 150 - total flux cleaned = 0.00436528 Jy ! Component: 200 - total flux cleaned = 0.00423031 Jy ! Total flux subtracted in 200 components = 0.00423031 Jy ! Clean residual min=-0.003830 max=0.004798 Jy/beam ! Clean residual mean=0.000049 rms=0.001306 Jy/beam ! Combined flux in latest and established models = 0.116803 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 13 model components to the UV plane model. ! The established model now contains 81 components and 0.116803 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.068211Jy sigma=0.917432 ! Fit after self-cal, rms=0.066237Jy sigma=0.905173 ! 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: 7.324 x 19.67 at 0.7853 degrees (North through East) ! Clean map min=-0.0039297 max=0.099409 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 = 20 mega-wavelengths. win_mult = win_mult * 1.4 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=9.854 mas, bmaj=20.48 mas, bpa=6.421 degrees ! Estimated noise=1.66754 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 = 0.000314454 Jy ! Component: 100 - total flux cleaned = 0.000282518 Jy ! Component: 150 - total flux cleaned = 0.000253635 Jy ! Component: 200 - total flux cleaned = 0.000227656 Jy ! Total flux subtracted in 200 components = 0.000227656 Jy ! Clean residual min=-0.003739 max=0.004890 Jy/beam ! Clean residual mean=0.000063 rms=0.001317 Jy/beam ! Combined flux in latest and established models = 0.117031 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 13 model components to the UV plane model. ! The established model now contains 86 components and 0.117031 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.066182Jy sigma=0.904701 ! Fit after self-cal, rms=0.065500Jy sigma=0.902159 ! 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=4.989 mas, bmaj=18.87 mas, bpa=-1.564 degrees ! Estimated noise=2.46221 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0827203 Jy ! Component: 100 - total flux cleaned = 0.100616 Jy ! Component: 150 - total flux cleaned = 0.109003 Jy ! Component: 200 - total flux cleaned = 0.114064 Jy ! Total flux subtracted in 200 components = 0.114064 Jy ! Clean residual min=-0.006421 max=0.005403 Jy/beam ! Clean residual mean=0.000054 rms=0.001856 Jy/beam ! Combined flux in latest and established models = 0.114064 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 28 model components to the UV plane model. ! The established model now contains 28 components and 0.114064 Jy ! Inverting map and beam ! Estimated beam: bmin=7.324 mas, bmaj=19.67 mas, bpa=0.7853 degrees ! Estimated noise=1.60254 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 = 0.00234555 Jy ! Component: 100 - total flux cleaned = 0.0028667 Jy ! Component: 150 - total flux cleaned = 0.00323199 Jy ! Component: 200 - total flux cleaned = 0.00334536 Jy ! Total flux subtracted in 200 components = 0.00334536 Jy ! Clean residual min=-0.004056 max=0.004901 Jy/beam ! Clean residual mean=0.000048 rms=0.001333 Jy/beam ! Combined flux in latest and established models = 0.11741 Jy ! Adding 15 model components to the UV plane model. ! The established model now contains 41 components and 0.11741 Jy ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 20 mega-wavelengths. flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=9.854 mas, bmaj=20.48 mas, bpa=6.421 degrees ! Estimated noise=1.66754 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 = -0.000298599 Jy ! Component: 100 - total flux cleaned = -0.000357982 Jy ! Component: 150 - total flux cleaned = -0.000337434 Jy ! Component: 200 - total flux cleaned = -0.000338518 Jy ! Total flux subtracted in 200 components = -0.000338518 Jy ! Clean residual min=-0.003902 max=0.004939 Jy/beam ! Clean residual mean=0.000063 rms=0.001310 Jy/beam ! Combined flux in latest and established models = 0.117071 Jy ! Adding 12 model components to the UV plane model. ! The established model now contains 51 components and 0.117071 Jy ! Inverting map uvtaper 0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=7.324 mas, bmaj=19.67 mas, bpa=0.7853 degrees ! Estimated noise=1.60254 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.000235332 Jy ! Component: 100 - total flux cleaned = 0.000351402 Jy ! Component: 150 - total flux cleaned = 0.000371708 Jy ! Component: 200 - total flux cleaned = 0.000391301 Jy ! Total flux subtracted in 200 components = 0.000391301 Jy ! Clean residual min=-0.004090 max=0.005045 Jy/beam ! Clean residual mean=0.000047 rms=0.001314 Jy/beam ! Combined flux in latest and established models = 0.117463 Jy selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! Adding 13 model components to the UV plane model. ! The established model now contains 61 components and 0.117463 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.065330Jy sigma=0.901587 ! Fit after self-cal, rms=0.065039Jy sigma=0.900586 wmodel J1756-1427_S_2006_12_18_yyk\_map.mod ! Writing 61 model components to file: J1756-1427_S_2006_12_18_yyk_map.mod wobs J1756-1427_S_2006_12_18_yyk\_uvs.fits ! Writing UV FITS file: J1756-1427_S_2006_12_18_yyk_uvs.fits wwins J1756-1427_S_2006_12_18_yyk\_map.win ! wwins: Wrote 1 windows to J1756-1427_S_2006_12_18_yyk_map.win x = (field_size-8) * field_cell / 4 addwin -x,x,-x,x clean (field_size*4),0.01 ! Inverting map ! clean: niter=1024 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = 0.000918894 Jy ! Component: 100 - total flux cleaned = 0.00111749 Jy ! Component: 150 - total flux cleaned = 0.000626352 Jy ! Component: 200 - total flux cleaned = 0.000373052 Jy ! Component: 250 - total flux cleaned = 0.000418302 Jy ! Component: 300 - total flux cleaned = 0.000551938 Jy ! Component: 350 - total flux cleaned = 0.000550544 Jy ! Component: 400 - total flux cleaned = 0.000631289 Jy ! Component: 450 - total flux cleaned = 0.000709791 Jy ! Component: 500 - total flux cleaned = 0.000897961 Jy ! Component: 550 - total flux cleaned = 0.000971128 Jy ! Component: 600 - total flux cleaned = 0.000970695 Jy ! Component: 650 - total flux cleaned = 0.000833451 Jy ! Component: 700 - total flux cleaned = 0.000569579 Jy ! Component: 750 - total flux cleaned = 0.000378223 Jy ! Component: 800 - total flux cleaned = 0.000315721 Jy ! Component: 850 - total flux cleaned = 0.000254277 Jy ! Component: 900 - total flux cleaned = 0.000165611 Jy ! Component: 950 - total flux cleaned = 0.000166066 Jy ! Component: 1000 - total flux cleaned = 0.000137915 Jy ! Total flux subtracted in 1024 components = 0.000138009 Jy ! Clean residual min=-0.001833 max=0.001666 Jy/beam ! Clean residual mean=0.000023 rms=0.000630 Jy/beam ! Combined flux in latest and established models = 0.117601 Jy keep ! Adding 57 model components to the UV plane model. ! The established model now contains 118 components and 0.117601 Jy ![Exited script file: muppet] wmap "J1756-1427_S_2006_12_18_yyk\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.324 x 19.67 at 0.7853 degrees (North through East) ! Clean map min=-0.0035837 max=0.099835 Jy/beam ! Writing clean map to FITS file: J1756-1427_S_2006_12_18_yyk_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.0998353 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000619227 device "J1756-1427_S_2006_12_18_yyk\_map.eps/VPS" ! Attempting to open device: 'J1756-1427_S_2006_12_18_yyk_map.eps/VPS' loglevs 1*100*3*image_rms/peak_flux ! The new contour levels are: ! -1.86075 1.86075 3.72149 7.44299 14.886 29.7719 59.5439 print "clev=",int(1*3*image_rms*10000)/10000 ! clev= 0.0018 print "peak=",int(peak_flux*1000)/1000 ! peak= 0.099 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.324 x 19.67 at 0.7853 degrees (North through East) ! Clean map min=-0.0035837 max=0.099835 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1756-1427_S_2006_12_18_yyk\_map.gif/gif" ! Attempting to open device: 'J1756-1427_S_2006_12_18_yyk_map.gif/gif' mapplot cln quit ! Quitting program ! Log file J1756-1427_S_2006_12_18_yyk_uvs.log closed on Mon Jun 16 20:15:36 2008