! Started logfile: J0917-1618_S_2004_05_27_yyk_uvs.log on Wed Dec 7 01:03:18 2005 obs J0917-1618_S_2004_05_27_yyk_uve.fits ! Reading UV FITS file: J0917-1618_S_2004_05_27_yyk_uve.fits ! AN table 1: 23 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.67343 visibilities/baseline/integration-bin. ! Found source: J0917-1618 ! ! 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 1387 lines of history. ! ! Reading 2788 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 J0917-1618_S_2004_05_27_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)= 0.0939706 Jy startmod ,phase_soltime ! Applying default point source starting model. ! Performing phase self-cal over 10 minute time intervals ! 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 76 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 76 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 76 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 99 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.942177Jy sigma=16.280214 ! Fit after self-cal, rms=0.941608Jy sigma=16.270167 ! 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=7.906 mas, bmaj=16.57 mas, bpa=6.463 degrees ! Estimated noise=1.31784 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 = 0.0551556 Jy ! Component: 100 - total flux cleaned = 0.0652758 Jy ! Total flux subtracted in 100 components = 0.0652758 Jy ! Clean residual min=-0.004225 max=0.005040 Jy/beam ! Clean residual mean=0.000106 rms=0.001452 Jy/beam ! Combined flux in latest and established models = 0.0652758 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 10 model components to the UV plane model. ! The established model now contains 10 components and 0.0652758 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.071075Jy sigma=1.055083 ! Fit after self-cal, rms=0.071066Jy sigma=1.055013 ! 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=9.402 mas, bmaj=18.65 mas, bpa=5.118 degrees ! Estimated noise=1.01219 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 = 0.00494659 Jy ! Component: 100 - total flux cleaned = 0.007135 Jy ! Component: 150 - total flux cleaned = 0.00755748 Jy ! Component: 200 - total flux cleaned = 0.00784938 Jy ! Total flux subtracted in 200 components = 0.00784938 Jy ! Clean residual min=-0.003337 max=0.003198 Jy/beam ! Clean residual mean=0.000046 rms=0.000899 Jy/beam ! Combined flux in latest and established models = 0.0731251 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 22 model components to the UV plane model. ! The established model now contains 29 components and 0.0731251 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.070973Jy sigma=1.050228 ! Fit after self-cal, rms=0.070958Jy sigma=1.050075 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! selflims ampcor_selflim ! 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: 1.01166 ! Telescope amplitude corrections in sub-array 1: ! BR 0.86 FD 1.10 HN 1.00* KP 0.96 ! LA 1.01 MK 1.00* NL 0.95 OV 1.01 ! PT 0.98 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: 1.03969 ! Telescope amplitude corrections in sub-array 1: ! BR 0.87 FD 1.04 HN 1.00* KP 0.94 ! LA 1.00* MK 1.00* NL 0.99 OV 0.87 ! PT 0.91 SC 1.00* ! ! ! Fit before self-cal, rms=0.070958Jy sigma=1.050075 ! Fit after self-cal, rms=0.070019Jy sigma=1.046521 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=0.070019Jy sigma=1.046521 ! Fit after self-cal, rms=0.070018Jy sigma=1.046511 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=9.321 mas, bmaj=18.3 mas, bpa=5.977 degrees ! Estimated noise=1.00038 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 = 0.00146721 Jy ! Component: 100 - total flux cleaned = 0.00177294 Jy ! Component: 150 - total flux cleaned = 0.0018694 Jy ! Component: 200 - total flux cleaned = 0.00195633 Jy ! Total flux subtracted in 200 components = 0.00195633 Jy ! Clean residual min=-0.002769 max=0.002816 Jy/beam ! Clean residual mean=0.000036 rms=0.000807 Jy/beam ! Combined flux in latest and established models = 0.0750815 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 15 model components to the UV plane model. ! The established model now contains 42 components and 0.0750815 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.069973Jy sigma=1.045818 ! Fit after self-cal, rms=0.069965Jy sigma=1.045776 ! 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=0.069965Jy sigma=1.045776 ! Fit after self-cal, rms=0.063406Jy sigma=0.938570 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 = 0.00448719 Jy ! Component: 100 - total flux cleaned = 0.00470965 Jy ! Component: 150 - total flux cleaned = 0.00481315 Jy ! Component: 200 - total flux cleaned = 0.00486639 Jy ! Total flux subtracted in 200 components = 0.00486639 Jy ! Clean residual min=-0.002771 max=0.002257 Jy/beam ! Clean residual mean=-0.000004 rms=0.000763 Jy/beam ! Combined flux in latest and established models = 0.0799479 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 22 model components to the UV plane model. ! The established model now contains 54 components and 0.0799479 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.063360Jy sigma=0.933853 ! Fit after self-cal, rms=0.062792Jy sigma=0.926988 ! 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: 9.321 x 18.3 at 5.977 degrees (North through East) ! Clean map min=-0.0028038 max=0.07 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=10.64 mas, bmaj=19.48 mas, bpa=8.175 degrees ! Estimated noise=1.0204 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 = 0.000312683 Jy ! Component: 100 - total flux cleaned = 0.000337636 Jy ! Component: 150 - total flux cleaned = 0.000298167 Jy ! Component: 200 - total flux cleaned = 0.000282816 Jy ! Total flux subtracted in 200 components = 0.000282816 Jy ! Clean residual min=-0.002822 max=0.002144 Jy/beam ! Clean residual mean=-0.000008 rms=0.000768 Jy/beam ! Combined flux in latest and established models = 0.0802307 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 24 model components to the UV plane model. ! The established model now contains 60 components and 0.0802307 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.062795Jy sigma=0.926747 ! Fit after self-cal, rms=0.062713Jy sigma=0.925836 ! Inverting map uvtaper 0,0 ! 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=7.878 mas, bmaj=16.5 mas, bpa=6.842 degrees ! Estimated noise=1.29387 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0600227 Jy ! Component: 100 - total flux cleaned = 0.0705583 Jy ! Component: 150 - total flux cleaned = 0.0750545 Jy ! Component: 200 - total flux cleaned = 0.0766127 Jy ! Total flux subtracted in 200 components = 0.0766127 Jy ! Clean residual min=-0.004191 max=0.003459 Jy/beam ! Clean residual mean=0.000025 rms=0.001104 Jy/beam ! Combined flux in latest and established models = 0.0766127 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 35 model components to the UV plane model. ! The established model now contains 35 components and 0.0766127 Jy ! Inverting map and beam ! Estimated beam: bmin=9.321 mas, bmaj=18.3 mas, bpa=5.977 degrees ! Estimated noise=1.00038 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 = 0.00242591 Jy ! Component: 100 - total flux cleaned = 0.00288273 Jy ! Component: 150 - total flux cleaned = 0.00312548 Jy ! Component: 200 - total flux cleaned = 0.00323032 Jy ! Total flux subtracted in 200 components = 0.00323032 Jy ! Clean residual min=-0.002996 max=0.002535 Jy/beam ! Clean residual mean=-0.000002 rms=0.000821 Jy/beam ! Combined flux in latest and established models = 0.079843 Jy ! Adding 15 model components to the UV plane model. ! The established model now contains 49 components and 0.079843 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=10.64 mas, bmaj=19.48 mas, bpa=8.175 degrees ! Estimated noise=1.0204 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 = 0.00023435 Jy ! Component: 100 - total flux cleaned = 0.00023534 Jy ! Component: 150 - total flux cleaned = 0.000236601 Jy ! Component: 200 - total flux cleaned = 0.000236814 Jy ! Total flux subtracted in 200 components = 0.000236814 Jy ! Clean residual min=-0.002910 max=0.002285 Jy/beam ! Clean residual mean=-0.000005 rms=0.000796 Jy/beam ! Combined flux in latest and established models = 0.0800798 Jy ! Adding 16 model components to the UV plane model. ! The established model now contains 57 components and 0.0800798 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=9.321 mas, bmaj=18.3 mas, bpa=5.977 degrees ! Estimated noise=1.00038 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = -8.49521e-05 Jy ! Component: 100 - total flux cleaned = -0.00013593 Jy ! Component: 150 - total flux cleaned = -0.000136345 Jy ! Component: 200 - total flux cleaned = -0.000137341 Jy ! Total flux subtracted in 200 components = -0.000137341 Jy ! Clean residual min=-0.002789 max=0.002372 Jy/beam ! Clean residual mean=-0.000002 rms=0.000779 Jy/beam ! Combined flux in latest and established models = 0.0799425 Jy selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! Adding 17 model components to the UV plane model. ! The established model now contains 63 components and 0.0799424 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.062728Jy sigma=0.926075 ! Fit after self-cal, rms=0.062702Jy sigma=0.925860 wmodel J0917-1618_S_2004_05_27_yyk\_map.mod ! Writing 63 model components to file: J0917-1618_S_2004_05_27_yyk_map.mod wobs J0917-1618_S_2004_05_27_yyk\_uvs.fits ! Writing UV FITS file: J0917-1618_S_2004_05_27_yyk_uvs.fits wwins J0917-1618_S_2004_05_27_yyk\_map.win ! wwins: Wrote 1 windows to J0917-1618_S_2004_05_27_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 = -0.000931472 Jy ! Component: 100 - total flux cleaned = -0.00147568 Jy ! Component: 150 - total flux cleaned = -0.00203144 Jy ! Component: 200 - total flux cleaned = -0.00243793 Jy ! Component: 250 - total flux cleaned = -0.00278215 Jy ! Component: 300 - total flux cleaned = -0.00296006 Jy ! Component: 350 - total flux cleaned = -0.00310014 Jy ! Component: 400 - total flux cleaned = -0.00328649 Jy ! Component: 450 - total flux cleaned = -0.00346509 Jy ! Component: 500 - total flux cleaned = -0.00366069 Jy ! Component: 550 - total flux cleaned = -0.00375541 Jy ! Component: 600 - total flux cleaned = -0.00386943 Jy ! Component: 650 - total flux cleaned = -0.00395695 Jy ! Component: 700 - total flux cleaned = -0.0040638 Jy ! Component: 750 - total flux cleaned = -0.00414774 Jy ! Component: 800 - total flux cleaned = -0.00429072 Jy ! Component: 850 - total flux cleaned = -0.00441012 Jy ! Component: 900 - total flux cleaned = -0.00456532 Jy ! Component: 950 - total flux cleaned = -0.00464137 Jy ! Component: 1000 - total flux cleaned = -0.00473478 Jy ! Total flux subtracted in 1024 components = -0.00480815 Jy ! Clean residual min=-0.001481 max=0.001198 Jy/beam ! Clean residual mean=0.000006 rms=0.000426 Jy/beam ! Combined flux in latest and established models = 0.0751343 Jy keep ! Adding 64 model components to the UV plane model. ! The established model now contains 127 components and 0.0751343 Jy ![Exited script file: muppet] wmap "J0917-1618_S_2004_05_27_yyk\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 9.321 x 18.3 at 5.977 degrees (North through East) ! Clean map min=-0.0028415 max=0.070067 Jy/beam ! Writing clean map to FITS file: J0917-1618_S_2004_05_27_yyk_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.070067 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000419741 device "J0917-1618_S_2004_05_27_yyk\_map.eps/VPS" ! Attempting to open device: 'J0917-1618_S_2004_05_27_yyk_map.eps/VPS' loglevs 1*100*3*image_rms/peak_flux ! The new contour levels are: ! -1.79717 1.79717 3.59434 7.18867 14.3773 28.7547 57.5094 print "clev=",int(1*3*image_rms*10000)/10000 ! clev= 0.0012 print "peak=",int(peak_flux*1000)/1000 ! peak= 0.07 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 9.321 x 18.3 at 5.977 degrees (North through East) ! Clean map min=-0.0028415 max=0.070067 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J0917-1618_S_2004_05_27_yyk\_map.gif/gif" ! Attempting to open device: 'J0917-1618_S_2004_05_27_yyk_map.gif/gif' mapplot cln quit ! Quitting program ! Log file J0917-1618_S_2004_05_27_yyk_uvs.log closed on Wed Dec 7 01:03:19 2005