! Started logfile: J1657-2004_X_2005_07_09_yyk_uvs.log on Fri Jan 20 10:45:47 2006 obs J1657-2004_X_2005_07_09_yyk_uve.fits ! Reading UV FITS file: J1657-2004_X_2005_07_09_yyk_uve.fits ! AN table 1: 13 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.984615 visibilities/baseline/integration-bin. ! Found source: J1657-2004 ! ! 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 8.40997e+09 8e+06 1 8e+06 ! 02 2 8.47997e+09 8e+06 1 8e+06 ! 03 3 8.79497e+09 8e+06 1 8e+06 ! 04 4 8.89997e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 1480 lines of history. ! ! Reading 2304 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 J1657-2004_X_2005_07_09_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)= 0.126761 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 ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.6774 mas, bmaj=1.737 mas, bpa=1.549 degrees ! Estimated noise=1.24925 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 = 0.0829946 Jy ! Component: 100 - total flux cleaned = 0.10337 Jy ! Total flux subtracted in 100 components = 0.10337 Jy ! Clean residual min=-0.008238 max=0.014865 Jy/beam ! Clean residual mean=-0.000052 rms=0.002261 Jy/beam ! Combined flux in latest and established models = 0.10337 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 8 model components to the UV plane model. ! The established model now contains 8 components and 0.10337 Jy ! ! Correcting IF 1. ! A total of 2 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 2 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 2 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 6 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.073389Jy sigma=1.254539 ! Fit after self-cal, rms=0.071394Jy sigma=1.233733 ! Inverting map and beam ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.6774 mas, bmaj=1.737 mas, bpa=1.549 degrees ! Estimated noise=1.24925 mJy/beam. ! Added new window around map position (7.2, 4.2). ! clean: niter=100 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0177745 Jy ! Component: 100 - total flux cleaned = 0.027496 Jy ! Total flux subtracted in 100 components = 0.027496 Jy ! Clean residual min=-0.006229 max=0.007215 Jy/beam ! Clean residual mean=-0.000034 rms=0.001696 Jy/beam ! Combined flux in latest and established models = 0.130866 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 15 model components to the UV plane model. ! The established model now contains 19 components and 0.130866 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.067384Jy sigma=1.132950 ! Fit after self-cal, rms=0.067214Jy sigma=1.128841 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec 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 ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.8454 mas, bmaj=2.185 mas, bpa=0.07075 degrees ! Estimated noise=0.800329 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 = 0.0125018 Jy ! Component: 100 - total flux cleaned = 0.0196232 Jy ! Component: 150 - total flux cleaned = 0.0242854 Jy ! Component: 200 - total flux cleaned = 0.0273682 Jy ! Total flux subtracted in 200 components = 0.0273682 Jy ! Clean residual min=-0.004725 max=0.007615 Jy/beam ! Clean residual mean=-0.000052 rms=0.001515 Jy/beam ! Combined flux in latest and established models = 0.158234 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 27 model components to the UV plane model. ! The established model now contains 41 components and 0.158234 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.065974Jy sigma=1.089838 ! Fit after self-cal, rms=0.065916Jy sigma=1.088082 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.8454 x 2.185 at 0.07075 degrees (North through East) ! Clean map min=-0.0044824 max=0.10213 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: 1.00738 ! Telescope amplitude corrections in sub-array 1: ! BR 0.98 FD 0.89 HN 1.05 KP 0.96 ! LA 0.94 MK 1.04 NL 1.08 OV 1.05 ! PT 0.96 SC 0.98 ! ! ! Correcting IF 2. ! Amplitude normalization factor in sub-array 1: 1.027 ! Telescope amplitude corrections in sub-array 1: ! BR 0.95 FD 0.92 HN 1.04 KP 0.90 ! LA 0.89 MK 1.02 NL 1.12 OV 1.02 ! PT 0.96 SC 0.92 ! ! ! 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=0.065916Jy sigma=1.088082 ! Fit after self-cal, rms=0.065816Jy sigma=1.076637 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=0.065816Jy sigma=1.076637 ! Fit after self-cal, rms=0.065791Jy sigma=1.076206 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.8591 mas, bmaj=2.203 mas, bpa=1.304 degrees ! Estimated noise=0.792778 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 (1.8, -1.8). ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.00612558 Jy ! Component: 100 - total flux cleaned = 0.00790622 Jy ! Component: 150 - total flux cleaned = 0.00889301 Jy ! Component: 200 - total flux cleaned = 0.0095524 Jy ! Total flux subtracted in 200 components = 0.0095524 Jy ! Clean residual min=-0.004021 max=0.004267 Jy/beam ! Clean residual mean=-0.000010 rms=0.001120 Jy/beam ! Combined flux in latest and established models = 0.167786 Jy ! Performing phase self-cal over 10 minute time intervals ! Adding 23 model components to the UV plane model. ! The established model now contains 60 components and 0.167786 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.065129Jy sigma=1.063116 ! Fit after self-cal, rms=0.065060Jy sigma=1.061912 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec 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=0.065060Jy sigma=1.061912 ! Fit after self-cal, rms=0.060231Jy sigma=0.993725 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec 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 = 0.002605 Jy ! Component: 100 - total flux cleaned = 0.00336344 Jy ! Component: 150 - total flux cleaned = 0.00368057 Jy ! Component: 200 - total flux cleaned = 0.00368367 Jy ! Total flux subtracted in 200 components = 0.00368367 Jy ! Clean residual min=-0.003603 max=0.003779 Jy/beam ! Clean residual mean=-0.000004 rms=0.001085 Jy/beam ! Combined flux in latest and established models = 0.17147 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 71 components and 0.17147 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.060077Jy sigma=0.990750 ! Fit after self-cal, rms=0.059487Jy sigma=0.986449 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec 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: 0.8591 x 2.203 at 1.304 degrees (North through East) ! Clean map min=-0.003484 max=0.10345 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 ! Performing amp+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=0.059487Jy sigma=0.986449 ! Fit after self-cal, rms=0.057703Jy sigma=0.978337 ! 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=0.057703Jy sigma=0.978337 ! Fit after self-cal, rms=0.057577Jy sigma=0.977743 ! Inverting map and beam ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.8546 mas, bmaj=2.194 mas, bpa=1.534 degrees ! Estimated noise=0.774028 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = -0.000612363 Jy ! Component: 100 - total flux cleaned = -0.000484751 Jy ! Component: 150 - total flux cleaned = -0.00059759 Jy ! Component: 200 - total flux cleaned = -0.000546629 Jy ! Total flux subtracted in 200 components = -0.000546629 Jy ! Clean residual min=-0.003561 max=0.003354 Jy/beam ! Clean residual mean=-0.000005 rms=0.000981 Jy/beam ! Combined flux in latest and established models = 0.170923 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 23 model components to the UV plane model. ! The established model now contains 80 components and 0.170923 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.057450Jy sigma=0.975519 ! Fit after self-cal, rms=0.057421Jy sigma=0.975326 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Performing amp+phase self-cal over 1 minute time intervals ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.057421Jy sigma=0.975326 ! Fit after self-cal, rms=0.057004Jy sigma=0.967259 ! 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=0.057004Jy sigma=0.967259 ! Fit after self-cal, rms=0.057005Jy sigma=0.967169 ! Inverting map and beam ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.8573 mas, bmaj=2.204 mas, bpa=1.787 degrees ! Estimated noise=0.769924 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = -6.80211e-05 Jy ! Component: 100 - total flux cleaned = -6.9064e-05 Jy ! Component: 150 - total flux cleaned = 2.29107e-05 Jy ! Component: 200 - total flux cleaned = 0.000105455 Jy ! Total flux subtracted in 200 components = 0.000105455 Jy ! Clean residual min=-0.003439 max=0.003236 Jy/beam ! Clean residual mean=-0.000008 rms=0.000954 Jy/beam ! Combined flux in latest and established models = 0.171029 Jy ! Performing phase self-cal over 0.5 minute time intervals ! Adding 23 model components to the UV plane model. ! The established model now contains 87 components and 0.171029 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.056933Jy sigma=0.965772 ! Fit after self-cal, rms=0.056940Jy sigma=0.965690 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! ************** FINISHED AMPLITUDE SELF-CAL ************** 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 ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=2.241 mas, bmaj=5.241 mas, bpa=7.148 degrees ! Estimated noise=0.987254 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 = 0.00177301 Jy ! Component: 100 - total flux cleaned = 0.00200715 Jy ! Component: 150 - total flux cleaned = 0.00208267 Jy ! Component: 200 - total flux cleaned = 0.00214287 Jy ! Total flux subtracted in 200 components = 0.00214287 Jy ! Clean residual min=-0.004248 max=0.004723 Jy/beam ! Clean residual mean=-0.000009 rms=0.001424 Jy/beam ! Combined flux in latest and established models = 0.173172 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 94 components and 0.173172 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.056984Jy sigma=0.965915 ! Fit after self-cal, rms=0.056988Jy sigma=0.965828 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec 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 ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.6815 mas, bmaj=1.745 mas, bpa=2.244 degrees ! Estimated noise=1.21358 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = 0.0856346 Jy ! Component: 100 - total flux cleaned = 0.10756 Jy ! Component: 150 - total flux cleaned = 0.121883 Jy ! Component: 200 - total flux cleaned = 0.132071 Jy ! Total flux subtracted in 200 components = 0.132071 Jy ! Clean residual min=-0.005477 max=0.004934 Jy/beam ! Clean residual mean=-0.000028 rms=0.001393 Jy/beam ! Combined flux in latest and established models = 0.132071 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 31 model components to the UV plane model. ! The established model now contains 31 components and 0.132071 Jy ! Inverting map and beam ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.8573 mas, bmaj=2.204 mas, bpa=1.787 degrees ! Estimated noise=0.769924 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 = 0.0126896 Jy ! Component: 100 - total flux cleaned = 0.020385 Jy ! Component: 150 - total flux cleaned = 0.0257623 Jy ! Component: 200 - total flux cleaned = 0.0296715 Jy ! Total flux subtracted in 200 components = 0.0296715 Jy ! Clean residual min=-0.003680 max=0.003898 Jy/beam ! Clean residual mean=-0.000027 rms=0.001062 Jy/beam ! Combined flux in latest and established models = 0.161742 Jy ! Adding 52 model components to the UV plane model. ! The established model now contains 75 components and 0.161742 Jy ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec 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 ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=2.241 mas, bmaj=5.241 mas, bpa=7.148 degrees ! Estimated noise=0.987254 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 = 0.00534218 Jy ! Component: 100 - total flux cleaned = 0.00829829 Jy ! Component: 150 - total flux cleaned = 0.0101344 Jy ! Component: 200 - total flux cleaned = 0.0113292 Jy ! Total flux subtracted in 200 components = 0.0113292 Jy ! Clean residual min=-0.004044 max=0.004720 Jy/beam ! Clean residual mean=-0.000010 rms=0.001433 Jy/beam ! Combined flux in latest and established models = 0.173071 Jy ! Adding 20 model components to the UV plane model. ! The established model now contains 86 components and 0.173071 Jy ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec uvtaper 0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! Estimated beam: bmin=0.8573 mas, bmaj=2.204 mas, bpa=1.787 degrees ! Estimated noise=0.769924 mJy/beam. ! clean: niter=200 gain=0.04 cutoff=0 ! Component: 050 - total flux cleaned = -0.000749788 Jy ! Component: 100 - total flux cleaned = -0.000743845 Jy ! Component: 150 - total flux cleaned = -0.000678991 Jy ! Component: 200 - total flux cleaned = -0.000624801 Jy ! Total flux subtracted in 200 components = -0.000624801 Jy ! Clean residual min=-0.003427 max=0.003355 Jy/beam ! Clean residual mean=-0.000006 rms=0.000957 Jy/beam ! Combined flux in latest and established models = 0.172447 Jy selfcal false, false, phase_soltime ! Performing phase self-cal over 0.5 minute time intervals ! Adding 19 model components to the UV plane model. ! The established model now contains 100 components and 0.172447 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.057062Jy sigma=0.967468 ! Fit after self-cal, rms=0.057050Jy sigma=0.966989 wmodel J1657-2004_X_2005_07_09_yyk\_map.mod ! Writing 100 model components to file: J1657-2004_X_2005_07_09_yyk_map.mod wobs J1657-2004_X_2005_07_09_yyk\_uvs.fits ! Writing UV FITS file: J1657-2004_X_2005_07_09_yyk_uvs.fits wwins J1657-2004_X_2005_07_09_yyk\_map.win ! wwins: Wrote 3 windows to J1657-2004_X_2005_07_09_yyk_map.win x = (field_size-8) * field_cell / 4 addwin -x,x,-x,x clean (field_size*4),0.01 ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! clean: niter=2048 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = -8.9801e-05 Jy ! Component: 100 - total flux cleaned = 0.000371322 Jy ! Component: 150 - total flux cleaned = 0.000533706 Jy ! Component: 200 - total flux cleaned = 0.000582873 Jy ! Component: 250 - total flux cleaned = 0.000727293 Jy ! Component: 300 - total flux cleaned = 0.000773639 Jy ! Component: 350 - total flux cleaned = 0.000683816 Jy ! Component: 400 - total flux cleaned = 0.000598118 Jy ! Component: 450 - total flux cleaned = 0.000473167 Jy ! Component: 500 - total flux cleaned = 0.000310668 Jy ! Component: 550 - total flux cleaned = 0.000113569 Jy ! Component: 600 - total flux cleaned = 0.000152281 Jy ! Component: 650 - total flux cleaned = 7.68759e-05 Jy ! Component: 700 - total flux cleaned = -0.000105604 Jy ! Component: 750 - total flux cleaned = -0.00024775 Jy ! Component: 800 - total flux cleaned = -0.000318385 Jy ! Component: 850 - total flux cleaned = -0.000558973 Jy ! Component: 900 - total flux cleaned = -0.000759781 Jy ! Component: 950 - total flux cleaned = -0.000826019 Jy ! Component: 1000 - total flux cleaned = -0.000922021 Jy ! Component: 1050 - total flux cleaned = -0.000827531 Jy ! Component: 1100 - total flux cleaned = -0.000828113 Jy ! Component: 1150 - total flux cleaned = -0.000859042 Jy ! Component: 1200 - total flux cleaned = -0.000798852 Jy ! Component: 1250 - total flux cleaned = -0.000770196 Jy ! Component: 1300 - total flux cleaned = -0.000683225 Jy ! Component: 1350 - total flux cleaned = -0.000741047 Jy ! Component: 1400 - total flux cleaned = -0.000825643 Jy ! Component: 1450 - total flux cleaned = -0.0008535 Jy ! Component: 1500 - total flux cleaned = -0.000936056 Jy ! Component: 1550 - total flux cleaned = -0.000990702 Jy ! Component: 1600 - total flux cleaned = -0.0010712 Jy ! Component: 1650 - total flux cleaned = -0.00112389 Jy ! Component: 1700 - total flux cleaned = -0.00117607 Jy ! Component: 1750 - total flux cleaned = -0.00122767 Jy ! Component: 1800 - total flux cleaned = -0.00132991 Jy ! Component: 1850 - total flux cleaned = -0.00143068 Jy ! Component: 1900 - total flux cleaned = -0.00158003 Jy ! Component: 1950 - total flux cleaned = -0.00148192 Jy ! Component: 2000 - total flux cleaned = -0.00172503 Jy ! Total flux subtracted in 2048 components = -0.00172501 Jy ! Clean residual min=-0.001464 max=0.001287 Jy/beam ! Clean residual mean=-0.000009 rms=0.000470 Jy/beam ! Combined flux in latest and established models = 0.170722 Jy keep ! Adding 153 model components to the UV plane model. ! The established model now contains 253 components and 0.170722 Jy ![Exited script file: muppet] wmap "J1657-2004_X_2005_07_09_yyk\_map.fits" ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.8573 x 2.204 at 1.787 degrees (North through East) ! Clean map min=-0.002331 max=0.10152 Jy/beam ! Writing clean map to FITS file: J1657-2004_X_2005_07_09_yyk_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.101516 invert ! Inverting map ! Your choice of large map pixels excluded 0.321% of the data. ! The x-axis pixel size should ideally be below 0.199 milli-arcsec float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000469772 device "J1657-2004_X_2005_07_09_yyk\_map.eps/VPS" ! Attempting to open device: 'J1657-2004_X_2005_07_09_yyk_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -1.38827 1.38827 2.77653 5.55306 11.1061 22.2122 44.4245 88.849 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0014 print "peak=",int(peak_flux*1000)/1000 ! peak= 0.101 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.8573 x 2.204 at 1.787 degrees (North through East) ! Clean map min=-0.002331 max=0.10152 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1657-2004_X_2005_07_09_yyk\_map.gif/gif" ! Attempting to open device: 'J1657-2004_X_2005_07_09_yyk_map.gif/gif' mapplot cln quit ! Quitting program ! Log file J1657-2004_X_2005_07_09_yyk_uvs.log closed on Fri Jan 20 10:45:52 2006