! Started logfile: J2347-1856_X_1997_08_27_yyk_uvs.log on Mon Jan 8 10:55:33 2007 obs J2347-1856_X_1997_08_27_yyk_uva.fits ! Reading UV FITS file: J2347-1856_X_1997_08_27_yyk_uva.fits ! AN table 1: 104 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.42094 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J2347-1856 ! ! 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 702 lines of history. ! ! Reading 7880 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 J2347-1856_X_1997_08_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 = 512x512 pixels with 0.200x0.200 milli-arcsec cellsize. phase_soltime=phase_soltime1 print "uvstat(rms)=",uvstat(rms),"Jy" ! uvstat(rms)= 0.818498 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=1.089 mas, bmaj=2.642 mas, bpa=4.269 degrees ! Estimated noise=3402.2 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 = 0.0762835 Jy ! Component: 100 - total flux cleaned = 0.100438 Jy ! Total flux subtracted in 100 components = 0.100438 Jy ! Clean residual min=-0.038565 max=0.038766 Jy/beam ! Clean residual mean=-0.000054 rms=0.015722 Jy/beam ! Combined flux in latest and established models = 0.100438 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 38 model components to the UV plane model. ! The established model now contains 38 components and 0.100438 Jy ! ! Correcting IF 1. ! A total of 389 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 389 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 389 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 389 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.808924Jy sigma=0.003896 ! Fit after self-cal, rms=0.808652Jy sigma=0.003895 ! Inverting map and beam ! Estimated beam: bmin=1.089 mas, bmaj=2.642 mas, bpa=4.269 degrees ! Estimated noise=3402.23 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=1.193 mas, bmaj=3.258 mas, bpa=4.863 degrees ! Estimated noise=1433.43 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 = 0.056027 Jy ! Component: 100 - total flux cleaned = 0.0780543 Jy ! Component: 150 - total flux cleaned = 0.0834585 Jy ! Component: 200 - total flux cleaned = 0.0883141 Jy ! Total flux subtracted in 200 components = 0.0883141 Jy ! Clean residual min=-0.014141 max=0.014092 Jy/beam ! Clean residual mean=-0.000058 rms=0.005634 Jy/beam ! Combined flux in latest and established models = 0.188752 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 75 model components to the UV plane model. ! The established model now contains 111 components and 0.188752 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.804152Jy sigma=0.003868 ! Fit after self-cal, rms=0.804083Jy sigma=0.003868 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 1.193 x 3.258 at 4.863 degrees (North through East) ! Clean map min=-0.026175 max=0.062901 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 84 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. ! A total of 84 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 3. ! A total of 84 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 4. ! A total of 84 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=0.804083Jy sigma=0.003868 ! Fit after self-cal, rms=0.673112Jy sigma=0.003281 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=0.673112Jy sigma=0.003281 ! Fit after self-cal, rms=0.672932Jy sigma=0.003280 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=1.181 mas, bmaj=3.322 mas, bpa=5.123 degrees ! Estimated noise=1459.02 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 = 0.0126872 Jy ! Component: 100 - total flux cleaned = 0.012696 Jy ! Component: 150 - total flux cleaned = 0.0161348 Jy ! Component: 200 - total flux cleaned = 0.0145088 Jy ! Total flux subtracted in 200 components = 0.0145088 Jy ! Clean residual min=-0.009774 max=0.009969 Jy/beam ! Clean residual mean=-0.000021 rms=0.004066 Jy/beam ! Combined flux in latest and established models = 0.203261 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 67 model components to the UV plane model. ! The established model now contains 164 components and 0.203261 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.671169Jy sigma=0.003271 ! Fit after self-cal, rms=0.671141Jy sigma=0.003271 ! 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=0.671141Jy sigma=0.003271 ! Fit after self-cal, rms=0.670074Jy sigma=0.003264 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 = 0.00505502 Jy ! Component: 100 - total flux cleaned = 0.0122825 Jy ! Component: 150 - total flux cleaned = 0.0139373 Jy ! Component: 200 - total flux cleaned = 0.0123737 Jy ! Total flux subtracted in 200 components = 0.0123737 Jy ! Clean residual min=-0.009710 max=0.009728 Jy/beam ! Clean residual mean=-0.000018 rms=0.004159 Jy/beam ! Combined flux in latest and established models = 0.215634 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 72 model components to the UV plane model. ! The established model now contains 223 components and 0.215634 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.668304Jy sigma=0.003254 ! Fit after self-cal, rms=0.667664Jy sigma=0.003250 ! 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: 1.181 x 3.322 at 5.123 degrees (North through East) ! Clean map min=-0.027969 max=0.058601 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=2.299 mas, bmaj=4.45 mas, bpa=-9.737 degrees ! Estimated noise=1725.19 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 = 0.0082861 Jy ! Component: 100 - total flux cleaned = 0.0137238 Jy ! Component: 150 - total flux cleaned = 0.0146052 Jy ! Component: 200 - total flux cleaned = 0.0162689 Jy ! Total flux subtracted in 200 components = 0.0162689 Jy ! Clean residual min=-0.010396 max=0.010317 Jy/beam ! Clean residual mean=-0.000012 rms=0.005030 Jy/beam ! Combined flux in latest and established models = 0.231903 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 54 model components to the UV plane model. ! The established model now contains 265 components and 0.231903 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.666145Jy sigma=0.003243 ! Fit after self-cal, rms=0.665459Jy sigma=0.003239 ! 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=1.084 mas, bmaj=2.667 mas, bpa=4.307 degrees ! Estimated noise=3506.94 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.078233 Jy ! Component: 100 - total flux cleaned = 0.105656 Jy ! Component: 150 - total flux cleaned = 0.115429 Jy ! Component: 200 - total flux cleaned = 0.111569 Jy ! Total flux subtracted in 200 components = 0.111569 Jy ! Clean residual min=-0.049615 max=0.049460 Jy/beam ! Clean residual mean=-0.000089 rms=0.022149 Jy/beam ! Combined flux in latest and established models = 0.111569 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 76 model components to the UV plane model. ! The established model now contains 76 components and 0.111569 Jy ! Inverting map and beam ! Estimated beam: bmin=1.181 mas, bmaj=3.322 mas, bpa=5.123 degrees ! Estimated noise=1459.02 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 = 0.0227819 Jy ! Component: 100 - total flux cleaned = 0.0280674 Jy ! Component: 150 - total flux cleaned = 0.0291295 Jy ! Component: 200 - total flux cleaned = 0.029143 Jy ! Total flux subtracted in 200 components = 0.029143 Jy ! Clean residual min=-0.012116 max=0.012174 Jy/beam ! Clean residual mean=-0.000019 rms=0.005087 Jy/beam ! Combined flux in latest and established models = 0.140712 Jy ! Adding 61 model components to the UV plane model. ! The established model now contains 136 components and 0.140712 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=2.299 mas, bmaj=4.45 mas, bpa=-9.737 degrees ! Estimated noise=1725.19 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 = 0.00367841 Jy ! Component: 100 - total flux cleaned = 0.00651962 Jy ! Component: 150 - total flux cleaned = 0.0102477 Jy ! Component: 200 - total flux cleaned = 0.0129006 Jy ! Total flux subtracted in 200 components = 0.0129006 Jy ! Clean residual min=-0.010835 max=0.010892 Jy/beam ! Clean residual mean=-0.000051 rms=0.005272 Jy/beam ! Combined flux in latest and established models = 0.153613 Jy ! Adding 62 model components to the UV plane model. ! The established model now contains 190 components and 0.153613 Jy ! Inverting map uvtaper 0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=1.181 mas, bmaj=3.322 mas, bpa=5.123 degrees ! Estimated noise=1459.02 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.000241211 Jy ! Component: 100 - total flux cleaned = 0.00425613 Jy ! Component: 150 - total flux cleaned = 0.00656788 Jy ! Component: 200 - total flux cleaned = 0.00658432 Jy ! Total flux subtracted in 200 components = 0.00658432 Jy ! Clean residual min=-0.009231 max=0.009234 Jy/beam ! Clean residual mean=-0.000048 rms=0.004167 Jy/beam ! Combined flux in latest and established models = 0.160197 Jy selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! Adding 74 model components to the UV plane model. ! The established model now contains 255 components and 0.160197 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.661271Jy sigma=0.003219 ! Fit after self-cal, rms=0.660663Jy sigma=0.003216 wmodel J2347-1856_X_1997_08_27_yyk\_map.mod ! Writing 255 model components to file: J2347-1856_X_1997_08_27_yyk_map.mod wobs J2347-1856_X_1997_08_27_yyk\_uvs.fits ! Writing UV FITS file: J2347-1856_X_1997_08_27_yyk_uvs.fits wwins J2347-1856_X_1997_08_27_yyk\_map.win ! wwins: No CLEAN windows to write. ! Error occured in command: wwins ![Exited script file: muppet] ! wmap "J2347-1856_X_1997_08_27_yyk\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 1.181 x 3.322 at 5.123 degrees (North through East) ! Clean map min=-0.035151 max=0.047401 Jy/beam ! Writing clean map to FITS file: J2347-1856_X_1997_08_27_yyk_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.047401 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.00463129 device "J2347-1856_X_1997_08_27_yyk\_map.eps/VPS" ! Attempting to open device: 'J2347-1856_X_1997_08_27_yyk_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -29.3113 29.3113 58.6226 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0138 print "peak=",int(peak_flux*1000)/1000 ! peak= 0.047 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 1.181 x 3.322 at 5.123 degrees (North through East) ! Clean map min=-0.035151 max=0.047401 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J2347-1856_X_1997_08_27_yyk\_map.gif/gif" ! Attempting to open device: 'J2347-1856_X_1997_08_27_yyk_map.gif/gif' mapplot cln quit ! Quitting program ! Log file J2347-1856_X_1997_08_27_yyk_uvs.log closed on Mon Jan 8 10:55:38 2007