! Started logfile: J1736-1944_S_2004_05_27_yyk_uvs.log on Wed Dec 7 01:04:33 2005 obs J1736-1944_S_2004_05_27_yyk_uve.fits ! Reading UV FITS file: J1736-1944_S_2004_05_27_yyk_uve.fits ! AN table 1: 15 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.380741 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J1736-1944 ! ! 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 1383 lines of history. ! ! Reading 1028 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 J1736-1944_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)= 0.109603 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 60 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 95 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 90 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 150 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.938083Jy sigma=14.837549 ! Fit after self-cal, rms=0.930453Jy sigma=14.774872 ! 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=8.096 mas, bmaj=19.38 mas, bpa=-0.5851 degrees ! Estimated noise=3.52409 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 = 0.0682795 Jy ! Component: 100 - total flux cleaned = 0.0795988 Jy ! Total flux subtracted in 100 components = 0.0795988 Jy ! Clean residual min=-0.011510 max=0.011467 Jy/beam ! Clean residual mean=-0.000289 rms=0.003748 Jy/beam ! Combined flux in latest and established models = 0.0795988 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 0.0795988 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.079559Jy sigma=0.999481 ! Fit after self-cal, rms=0.079469Jy sigma=0.995921 ! 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=8.888 mas, bmaj=23.58 mas, bpa=-4.301 degrees ! Estimated noise=2.14144 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 = -0.000449384 Jy ! Component: 100 - total flux cleaned = -0.00118873 Jy ! Component: 150 - total flux cleaned = -0.00147689 Jy ! Component: 200 - total flux cleaned = -0.00173589 Jy ! Total flux subtracted in 200 components = -0.00173589 Jy ! Clean residual min=-0.005537 max=0.004474 Jy/beam ! Clean residual mean=-0.000152 rms=0.001525 Jy/beam ! Combined flux in latest and established models = 0.0778629 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 17 model components to the UV plane model. ! The established model now contains 31 components and 0.0778629 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.078931Jy sigma=0.989469 ! Fit after self-cal, rms=0.078936Jy sigma=0.989215 ! 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 ! 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: 0.995525 ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.94 HN 1.00* KP 1.00 ! LA 1.00* MK 1.00* NL 0.98 OV 1.14 ! PT 0.99 SC 1.00* ! ! ! Correcting IF 3. ! A total of 3 telescope corrections were flagged in sub-array 1. ! Amplitude normalization factor in sub-array 1: 1.03083 ! Telescope amplitude corrections in sub-array 1: ! BR 0.84 FD 0.89 HN 1.00* KP 1.00* ! LA 0.90 MK 1.00* NL 0.96 OV 1.05 ! PT 1.05 SC 1.00* ! ! ! Correcting IF 4. ! Amplitude normalization factor in sub-array 1: 1 ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* OV 0.00* ! PT 0.00* SC 0.00* ! ! ! Fit before self-cal, rms=0.078936Jy sigma=0.989215 ! Fit after self-cal, rms=0.076957Jy sigma=0.987335 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=0.076957Jy sigma=0.987335 ! Fit after self-cal, rms=0.076867Jy sigma=0.986521 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=8.955 mas, bmaj=22.86 mas, bpa=-4.059 degrees ! Estimated noise=2.14609 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 = -0.000861211 Jy ! Component: 100 - total flux cleaned = -0.00122616 Jy ! Component: 150 - total flux cleaned = -0.00135422 Jy ! Component: 200 - total flux cleaned = -0.00147016 Jy ! Total flux subtracted in 200 components = -0.00147016 Jy ! Clean residual min=-0.005773 max=0.004399 Jy/beam ! Clean residual mean=-0.000113 rms=0.001508 Jy/beam ! Combined flux in latest and established models = 0.0763927 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 18 model components to the UV plane model. ! The established model now contains 48 components and 0.0763927 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.076735Jy sigma=0.984671 ! Fit after self-cal, rms=0.076741Jy sigma=0.984614 ! 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=0.076741Jy sigma=0.984614 ! Fit after self-cal, rms=0.069435Jy sigma=0.872127 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 = 0.00315866 Jy ! Component: 100 - total flux cleaned = 0.00299661 Jy ! Component: 150 - total flux cleaned = 0.00231824 Jy ! Component: 200 - total flux cleaned = 0.0020147 Jy ! Total flux subtracted in 200 components = 0.0020147 Jy ! Clean residual min=-0.004541 max=0.004095 Jy/beam ! Clean residual mean=-0.000072 rms=0.001424 Jy/beam ! Combined flux in latest and established models = 0.0784074 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 17 model components to the UV plane model. ! The established model now contains 58 components and 0.0784074 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.069039Jy sigma=0.864521 ! Fit after self-cal, rms=0.068393Jy sigma=0.855036 ! 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: 8.955 x 22.86 at -4.059 degrees (North through East) ! Clean map min=-0.0047461 max=0.082046 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=10.21 mas, bmaj=23.96 mas, bpa=-2.515 degrees ! Estimated noise=2.18914 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 = 0.000267602 Jy ! Component: 100 - total flux cleaned = 8.84682e-06 Jy ! Component: 150 - total flux cleaned = -0.000170697 Jy ! Component: 200 - total flux cleaned = -0.000337407 Jy ! Total flux subtracted in 200 components = -0.000337407 Jy ! Clean residual min=-0.004867 max=0.004160 Jy/beam ! Clean residual mean=-0.000079 rms=0.001456 Jy/beam ! Combined flux in latest and established models = 0.07807 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 19 model components to the UV plane model. ! The established model now contains 69 components and 0.07807 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.068285Jy sigma=0.853703 ! Fit after self-cal, rms=0.068143Jy sigma=0.852325 ! 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=8.076 mas, bmaj=18.96 mas, bpa=0.3339 degrees ! Estimated noise=3.35897 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.073834 Jy ! Component: 100 - total flux cleaned = 0.0846287 Jy ! Component: 150 - total flux cleaned = 0.0830567 Jy ! Component: 200 - total flux cleaned = 0.0805843 Jy ! Total flux subtracted in 200 components = 0.0805843 Jy ! Clean residual min=-0.009591 max=0.010154 Jy/beam ! Clean residual mean=-0.000188 rms=0.002937 Jy/beam ! Combined flux in latest and established models = 0.0805843 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 20 model components to the UV plane model. ! The established model now contains 20 components and 0.0805843 Jy ! Inverting map and beam ! Estimated beam: bmin=8.955 mas, bmaj=22.86 mas, bpa=-4.059 degrees ! Estimated noise=2.14609 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 = -0.00327904 Jy ! Component: 100 - total flux cleaned = -0.00354711 Jy ! Component: 150 - total flux cleaned = -0.00376998 Jy ! Component: 200 - total flux cleaned = -0.00389437 Jy ! Total flux subtracted in 200 components = -0.00389437 Jy ! Clean residual min=-0.004337 max=0.004207 Jy/beam ! Clean residual mean=-0.000064 rms=0.001445 Jy/beam ! Combined flux in latest and established models = 0.07669 Jy ! Adding 17 model components to the UV plane model. ! The established model now contains 36 components and 0.07669 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=10.21 mas, bmaj=23.96 mas, bpa=-2.515 degrees ! Estimated noise=2.18914 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 = 0.0002071 Jy ! Component: 100 - total flux cleaned = 0.000167769 Jy ! Component: 150 - total flux cleaned = 0.00020538 Jy ! Component: 200 - total flux cleaned = 0.000206158 Jy ! Total flux subtracted in 200 components = 0.000206158 Jy ! Clean residual min=-0.004610 max=0.004092 Jy/beam ! Clean residual mean=-0.000071 rms=0.001481 Jy/beam ! Combined flux in latest and established models = 0.0768961 Jy ! Adding 10 model components to the UV plane model. ! The established model now contains 42 components and 0.0768961 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=8.955 mas, bmaj=22.86 mas, bpa=-4.059 degrees ! Estimated noise=2.14609 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = -0.000102503 Jy ! Component: 100 - total flux cleaned = -0.000271508 Jy ! Component: 150 - total flux cleaned = -0.000270985 Jy ! Component: 200 - total flux cleaned = -0.000345447 Jy ! Total flux subtracted in 200 components = -0.000345447 Jy ! Clean residual min=-0.004213 max=0.003877 Jy/beam ! Clean residual mean=-0.000061 rms=0.001420 Jy/beam ! Combined flux in latest and established models = 0.0765507 Jy selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! Adding 15 model components to the UV plane model. ! The established model now contains 51 components and 0.0765507 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.067897Jy sigma=0.849621 ! Fit after self-cal, rms=0.067765Jy sigma=0.848849 wmodel J1736-1944_S_2004_05_27_yyk\_map.mod ! Writing 51 model components to file: J1736-1944_S_2004_05_27_yyk_map.mod wobs J1736-1944_S_2004_05_27_yyk\_uvs.fits ! Writing UV FITS file: J1736-1944_S_2004_05_27_yyk_uvs.fits wwins J1736-1944_S_2004_05_27_yyk\_map.win ! wwins: Wrote 1 windows to J1736-1944_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 = -0.00195685 Jy ! Component: 100 - total flux cleaned = -0.00290256 Jy ! Component: 150 - total flux cleaned = -0.00302847 Jy ! Component: 200 - total flux cleaned = -0.00314298 Jy ! Component: 250 - total flux cleaned = -0.00319578 Jy ! Component: 300 - total flux cleaned = -0.00348959 Jy ! Component: 350 - total flux cleaned = -0.00371929 Jy ! Component: 400 - total flux cleaned = -0.00406738 Jy ! Component: 450 - total flux cleaned = -0.00431813 Jy ! Component: 500 - total flux cleaned = -0.00427764 Jy ! Component: 550 - total flux cleaned = -0.00435618 Jy ! Component: 600 - total flux cleaned = -0.0043177 Jy ! Component: 650 - total flux cleaned = -0.00424372 Jy ! Component: 700 - total flux cleaned = -0.00417196 Jy ! Component: 750 - total flux cleaned = -0.00417211 Jy ! Component: 800 - total flux cleaned = -0.00410323 Jy ! Component: 850 - total flux cleaned = -0.0041374 Jy ! Component: 900 - total flux cleaned = -0.00413782 Jy ! Component: 950 - total flux cleaned = -0.00423541 Jy ! Component: 1000 - total flux cleaned = -0.00429901 Jy ! Total flux subtracted in 1024 components = -0.00429917 Jy ! Clean residual min=-0.001968 max=0.002072 Jy/beam ! Clean residual mean=-0.000062 rms=0.000748 Jy/beam ! Combined flux in latest and established models = 0.0722515 Jy keep ! Adding 75 model components to the UV plane model. ! The established model now contains 126 components and 0.0722515 Jy ![Exited script file: muppet] wmap "J1736-1944_S_2004_05_27_yyk\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 8.955 x 22.86 at -4.059 degrees (North through East) ! Clean map min=-0.0052598 max=0.081755 Jy/beam ! Writing clean map to FITS file: J1736-1944_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 0.0817554 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000745204 device "J1736-1944_S_2004_05_27_yyk\_map.eps/VPS" ! Attempting to open device: 'J1736-1944_S_2004_05_27_yyk_map.eps/VPS' loglevs 1*100*3*image_rms/peak_flux ! The new contour levels are: ! -2.73451 2.73451 5.46903 10.9381 21.8761 43.7522 87.5044 print "clev=",int(1*3*image_rms*10000)/10000 ! clev= 0.0022 print "peak=",int(peak_flux*1000)/1000 ! peak= 0.081 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 8.955 x 22.86 at -4.059 degrees (North through East) ! Clean map min=-0.0052598 max=0.081755 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1736-1944_S_2004_05_27_yyk\_map.gif/gif" ! Attempting to open device: 'J1736-1944_S_2004_05_27_yyk_map.gif/gif' mapplot cln quit ! Quitting program ! Log file J1736-1944_S_2004_05_27_yyk_uvs.log closed on Wed Dec 7 01:04:33 2005