! Started logfile: J2257+0243_X_2008_07_09_pus_uvs.log on Sun Oct 10 20:20:19 2010 obs J2257+0243_X_2008_07_09_pus_uva.fits ! Reading UV FITS file: J2257+0243_X_2008_07_09_pus_uva.fits ! AN table 1: 84 integrations on 105 of 105 possible baselines. ! AN table 2: 500 integrations on 105 of 105 possible baselines. ! Apparent sampling: 0.194569 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J2257+0243 ! ! 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 1142 lines of history. ! ! Reading 47724 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 print "field_size =",field_size ! field_size = 256 print "field_cell =",field_cell ! field_cell = 0.2 print "taper_size =",taper_size ! taper_size = 70 integer clean_niter clean_niter = 100 float clean_gain clean_gain = 0.03 float dynam dynam = 6.0 float soltime1 soltime1 = 120 float soltime2 soltime2 = 20 float thresh thresh = 0.5 float win_mult win_mult = 1.8 float time_av time_av = 16 float old_peak float new_peak float flux_cutoff mapsize field_size, field_cell ! Map grid = 256x256 pixels with 0.200x0.200 milli-arcsec cellsize. startmod ! Applying default point source starting model. ! Performing phase self-cal ! 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 589 telescope corrections were flagged in sub-array 1. ! A total of 4464 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 2. ! A total of 589 telescope corrections were flagged in sub-array 1. ! A total of 4464 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 3. ! A total of 589 telescope corrections were flagged in sub-array 1. ! A total of 4464 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 4. ! A total of 589 telescope corrections were flagged in sub-array 1. ! A total of 4464 telescope corrections were flagged in sub-array 2. ! ! Fit before self-cal, rms=0.917481Jy sigma=0.006557 ! Fit after self-cal, rms=0.796000Jy sigma=0.005706 ! 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 ! Your choice of large map pixels excluded 4.46% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.5061 mas, bmaj=1.666 mas, bpa=-12.07 degrees ! Estimated noise=788.699 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) ! Added new window around map position (0, 0). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.180575 Jy ! Component: 100 - total flux cleaned = 0.219985 Jy ! Total flux subtracted in 100 components = 0.219985 Jy ! Clean residual min=-0.005447 max=0.011547 Jy/beam ! Clean residual mean=-0.000006 rms=0.001760 Jy/beam ! Combined flux in latest and established models = 0.219985 Jy ! Performing phase self-cal ! Adding 3 model components to the UV plane model. ! The established model now contains 3 components and 0.219985 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.204164Jy sigma=0.001217 ! Fit after self-cal, rms=0.204149Jy sigma=0.001216 ! Inverting map ! Your choice of large map pixels excluded 4.46% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0123611 Jy ! Component: 100 - total flux cleaned = 0.018809 Jy ! Total flux subtracted in 100 components = 0.018809 Jy ! Clean residual min=-0.005374 max=0.005224 Jy/beam ! Clean residual mean=-0.000048 rms=0.001410 Jy/beam ! Combined flux in latest and established models = 0.238794 Jy ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 10 components and 0.238794 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.203434Jy sigma=0.001210 ! Fit after self-cal, rms=0.203362Jy sigma=0.001210 ! Inverting map ! Your choice of large map pixels excluded 4.46% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec print "************** FINISHED UNIFORM WEIGHTING CLEAN **************" ! ************** FINISHED UNIFORM WEIGHTING CLEAN ************** ! uvw 0,-1 ! Uniform weighting is not currently selected. ! Gridding weights will be scaled by errors raised to the power -1. ! 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 4.46% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.5582 mas, bmaj=1.768 mas, bpa=-12.66 degrees ! Estimated noise=476.358 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0035216 Jy ! Component: 100 - total flux cleaned = 0.00529599 Jy ! Component: 150 - total flux cleaned = 0.00581286 Jy ! Component: 200 - total flux cleaned = 0.00600498 Jy ! Total flux subtracted in 200 components = 0.00600498 Jy ! Clean residual min=-0.004524 max=0.004773 Jy/beam ! Clean residual mean=-0.000191 rms=0.001296 Jy/beam ! Combined flux in latest and established models = 0.244799 Jy ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 16 components and 0.244799 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.203250Jy sigma=0.001209 ! Fit after self-cal, rms=0.203236Jy sigma=0.001209 ! Inverting map ! Your choice of large map pixels excluded 4.46% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.93 FD 0.97 HH 1.00* HN 1.08 ! KK 0.98 KP 1.01 LA 0.97 MK 0.96 ! NL 1.01 NY 1.00* ON 1.00* PT 0.98 ! SC 0.95 WZ 1.00* ZC 1.00* ! ! A total of 366 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.05 HH 1.00* HN 1.08 ! KK 1.00* KP 1.00* LA 1.02 MK 1.00* ! NL 1.10 NY 1.01 ON 0.98 PT 1.19 ! SC 0.97 WZ 0.95 ZC 1.03 ! ! ! Correcting IF 2. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.02 FD 0.98 HH 1.00* HN 0.97 ! KK 1.00 KP 0.96 LA 0.97 MK 0.95 ! NL 0.93 NY 1.00* ON 1.00* PT 0.98 ! SC 1.00 WZ 1.00* ZC 1.00* ! ! A total of 366 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.02 HH 1.00* HN 1.03 ! KK 1.00* KP 1.00* LA 0.98 MK 1.00* ! NL 1.03 NY 1.10 ON 0.93 PT 1.18 ! SC 0.98 WZ 0.94 ZC 1.06 ! ! ! Correcting IF 3. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.97 FD 0.95 HH 1.00* HN 0.98 ! KK 0.92 KP 0.97 LA 1.00 MK 0.98 ! NL 0.96 NY 1.00* ON 1.00* PT 0.97 ! SC 1.02 WZ 1.00* ZC 1.00* ! ! A total of 366 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.05 HH 1.00* HN 0.99 ! KK 1.00* KP 1.00* LA 1.02 MK 1.00* ! NL 1.05 NY 0.99 ON 0.92 PT 1.20 ! SC 0.99 WZ 0.96 ZC 1.03 ! ! ! Correcting IF 4. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.94 FD 0.97 HH 1.00* HN 0.98 ! KK 0.93 KP 0.97 LA 0.97 MK 0.99 ! NL 0.96 NY 1.00* ON 1.00* PT 0.99 ! SC 1.01 WZ 1.00* ZC 1.00* ! ! A total of 366 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 0.98 HH 1.00* HN 0.98 ! KK 1.00* KP 1.00* LA 1.01 MK 1.00* ! NL 1.02 NY 1.03 ON 0.93 PT 1.24 ! SC 1.00 WZ 0.96 ZC 1.01 ! ! ! Fit before self-cal, rms=0.203236Jy sigma=0.001209 ! Fit after self-cal, rms=0.203286Jy sigma=0.001207 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.5507 mas, bmaj=1.777 mas, bpa=-12.86 degrees ! Estimated noise=483.281 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000292911 Jy ! Component: 100 - total flux cleaned = 0.000260293 Jy ! Component: 150 - total flux cleaned = 0.00026033 Jy ! Component: 200 - total flux cleaned = 0.000238486 Jy ! Total flux subtracted in 200 components = 0.000238486 Jy ! Clean residual min=-0.003115 max=0.003162 Jy/beam ! Clean residual mean=-0.000048 rms=0.000834 Jy/beam ! Combined flux in latest and established models = 0.245037 Jy ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 23 components and 0.245037 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.203275Jy sigma=0.001207 ! Fit after self-cal, rms=0.203299Jy sigma=0.001207 ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec selfcal true, true, soltime1 ! Performing amp+phase self-cal over 120 minute time intervals ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.203299Jy sigma=0.001207 ! Fit after self-cal, rms=0.203987Jy sigma=0.001206 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.5509 mas, bmaj=1.779 mas, bpa=-12.85 degrees ! Estimated noise=484.16 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -8.33799e-05 Jy ! Component: 100 - total flux cleaned = -9.92542e-05 Jy ! Component: 150 - total flux cleaned = -0.000128245 Jy ! Component: 200 - total flux cleaned = -0.000141136 Jy ! Total flux subtracted in 200 components = -0.000141136 Jy ! Clean residual min=-0.002481 max=0.002997 Jy/beam ! Clean residual mean=-0.000039 rms=0.000767 Jy/beam ! Combined flux in latest and established models = 0.244896 Jy selfcal ! Performing phase self-cal ! Adding 14 model components to the UV plane model. ! The established model now contains 29 components and 0.244896 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.203983Jy sigma=0.001206 ! Fit after self-cal, rms=0.203983Jy sigma=0.001206 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -4.53e-05 Jy ! Component: 100 - total flux cleaned = -4.46732e-05 Jy ! Component: 150 - total flux cleaned = -4.48669e-05 Jy ! Component: 200 - total flux cleaned = -5.74245e-05 Jy ! Total flux subtracted in 200 components = -5.74245e-05 Jy ! Clean residual min=-0.002516 max=0.002971 Jy/beam ! Clean residual mean=-0.000040 rms=0.000767 Jy/beam ! Combined flux in latest and established models = 0.244839 Jy ! Performing phase self-cal ! Adding 11 model components to the UV plane model. ! The established model now contains 29 components and 0.244839 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.203981Jy sigma=0.001206 ! Fit after self-cal, rms=0.203983Jy sigma=0.001206 ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec selfcal true, true, soltime2 ! Performing amp+phase self-cal over 20 minute time intervals ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.203983Jy sigma=0.001206 ! Fit after self-cal, rms=0.210658Jy sigma=0.001204 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.5524 mas, bmaj=1.779 mas, bpa=-12.92 degrees ! Estimated noise=485.47 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000886358 Jy ! Component: 100 - total flux cleaned = -0.00117612 Jy ! Component: 150 - total flux cleaned = -0.00138469 Jy ! Component: 200 - total flux cleaned = -0.00154627 Jy ! Total flux subtracted in 200 components = -0.00154627 Jy ! Clean residual min=-0.001664 max=0.001925 Jy/beam ! Clean residual mean=0.000023 rms=0.000549 Jy/beam ! Combined flux in latest and established models = 0.243293 Jy selfcal ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 36 components and 0.243293 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.210649Jy sigma=0.001204 ! Fit after self-cal, rms=0.210808Jy sigma=0.001204 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000269909 Jy ! Component: 100 - total flux cleaned = -0.000383031 Jy ! Component: 150 - total flux cleaned = -0.000426366 Jy ! Component: 200 - total flux cleaned = -0.00044601 Jy ! Total flux subtracted in 200 components = -0.00044601 Jy ! Clean residual min=-0.001644 max=0.001927 Jy/beam ! Clean residual mean=0.000021 rms=0.000552 Jy/beam ! Combined flux in latest and established models = 0.242847 Jy ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 39 components and 0.242847 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.210807Jy sigma=0.001204 ! Fit after self-cal, rms=0.210809Jy sigma=0.001204 ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 70 mega-wavelengths. win_mult = win_mult * 1.2 selfcal true, true, soltime2 ! Performing amp+phase self-cal over 20 minute time intervals ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.210809Jy sigma=0.001204 ! Fit after self-cal, rms=0.212200Jy sigma=0.001204 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=2.027 mas, bmaj=2.676 mas, bpa=17.94 degrees ! Estimated noise=738.568 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000194389 Jy ! Component: 100 - total flux cleaned = 0.000177814 Jy ! Component: 150 - total flux cleaned = 0.000170476 Jy ! Component: 200 - total flux cleaned = 0.00017056 Jy ! Total flux subtracted in 200 components = 0.00017056 Jy ! Clean residual min=-0.002304 max=0.002373 Jy/beam ! Clean residual mean=0.000067 rms=0.000781 Jy/beam ! Combined flux in latest and established models = 0.243017 Jy selfcal ! Performing phase self-cal ! Adding 4 model components to the UV plane model. ! The established model now contains 41 components and 0.243017 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.212201Jy sigma=0.001204 ! Fit after self-cal, rms=0.212214Jy sigma=0.001204 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 4.77858e-05 Jy ! Component: 100 - total flux cleaned = 4.26767e-05 Jy ! Component: 150 - total flux cleaned = 4.2475e-05 Jy ! Component: 200 - total flux cleaned = 3.86132e-05 Jy ! Total flux subtracted in 200 components = 3.86132e-05 Jy ! Clean residual min=-0.002282 max=0.002367 Jy/beam ! Clean residual mean=0.000066 rms=0.000783 Jy/beam ! Combined flux in latest and established models = 0.243056 Jy ! Performing phase self-cal ! Adding 7 model components to the UV plane model. ! The established model now contains 42 components and 0.243056 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.212214Jy sigma=0.001204 ! Fit after self-cal, rms=0.212215Jy sigma=0.001204 ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec uvtaper 0,0 ! No UV-taper is currently set. win_mult = win_mult / 1.2 print "************** FINISHED AMPLITUDE SELF-CAL **************" ! ************** FINISHED AMPLITUDE SELF-CAL ************** restore ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.553 mas, bmaj=1.78 mas, bpa=-12.93 degrees ! Estimated noise=486.743 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.553 x 1.78 at -12.93 degrees (North through East) ! Clean map min=-0.0014829 max=0.23302 Jy/beam if(peak(flux) > thresh) selfcal true, true clean clean_niter,clean_gain selfcal 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 new_peak = peak(flux) until(new_peak<=flux_cutoff) selfcal true, true end if print "************** CLEARING MODEL AND STARTING OVER **********" ! ************** CLEARING MODEL AND STARTING OVER ********** clrmod true ! clrmod: Cleared the established and tentative 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 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.5062 mas, bmaj=1.677 mas, bpa=-12.2 degrees ! Estimated noise=795.64 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.180066 Jy ! Component: 100 - total flux cleaned = 0.219333 Jy ! Component: 150 - total flux cleaned = 0.230839 Jy ! Component: 200 - total flux cleaned = 0.236727 Jy ! Total flux subtracted in 200 components = 0.236727 Jy ! Clean residual min=-0.004230 max=0.003113 Jy/beam ! Clean residual mean=0.000011 rms=0.000980 Jy/beam ! Combined flux in latest and established models = 0.236727 Jy uvw 0,-1 ! Uniform weighting is not currently selected. ! Gridding weights will be scaled by errors raised to the power -1. ! Radial weighting is not currently selected. flux_cutoff = imstat(rms) * dynam ! Adding 4 model components to the UV plane model. ! The established model now contains 4 components and 0.236727 Jy ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.553 mas, bmaj=1.78 mas, bpa=-12.93 degrees ! Estimated noise=486.743 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=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0040067 Jy ! Component: 100 - total flux cleaned = 0.00520269 Jy ! Component: 150 - total flux cleaned = 0.00573395 Jy ! Component: 200 - total flux cleaned = 0.00600349 Jy ! Total flux subtracted in 200 components = 0.00600349 Jy ! Clean residual min=-0.001755 max=0.002026 Jy/beam ! Clean residual mean=0.000020 rms=0.000563 Jy/beam ! Combined flux in latest and established models = 0.24273 Jy ! Adding 11 model components to the UV plane model. ! The established model now contains 12 components and 0.24273 Jy ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 70 mega-wavelengths. clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=2.027 mas, bmaj=2.676 mas, bpa=17.94 degrees ! Estimated noise=738.568 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00043487 Jy ! Component: 100 - total flux cleaned = 0.000454735 Jy ! Component: 150 - total flux cleaned = 0.000455883 Jy ! Component: 200 - total flux cleaned = 0.000455935 Jy ! Total flux subtracted in 200 components = 0.000455934 Jy ! Clean residual min=-0.002353 max=0.002328 Jy/beam ! Clean residual mean=0.000063 rms=0.000787 Jy/beam ! Combined flux in latest and established models = 0.243186 Jy flux_cutoff = imstat(rms) * dynam 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=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -1.34137e-07 Jy ! Component: 100 - total flux cleaned = -1.09935e-05 Jy ! Component: 150 - total flux cleaned = -1.10016e-05 Jy ! Component: 200 - total flux cleaned = -1.07216e-05 Jy ! Total flux subtracted in 200 components = -1.07216e-05 Jy ! Clean residual min=-0.002320 max=0.002331 Jy/beam ! Clean residual mean=0.000063 rms=0.000785 Jy/beam ! Combined flux in latest and established models = 0.243175 Jy ! Adding 13 model components to the UV plane model. ! The established model now contains 22 components and 0.243175 Jy ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! Estimated beam: bmin=0.553 mas, bmaj=1.78 mas, bpa=-12.93 degrees ! Estimated noise=486.743 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000591127 Jy ! Component: 100 - total flux cleaned = -0.000618471 Jy ! Component: 150 - total flux cleaned = -0.000618663 Jy ! Component: 200 - total flux cleaned = -0.000581421 Jy ! Total flux subtracted in 200 components = -0.000581421 Jy ! Clean residual min=-0.001667 max=0.001960 Jy/beam ! Clean residual mean=0.000022 rms=0.000553 Jy/beam ! Combined flux in latest and established models = 0.242594 Jy selfcal ! Performing phase self-cal ! Adding 7 model components to the UV plane model. ! The established model now contains 25 components and 0.242594 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.212218Jy sigma=0.001204 ! Fit after self-cal, rms=0.212222Jy sigma=0.001204 wmodel J2257+0243_X_2008_07_09_pus_map.mod ! Writing 25 model components to file: J2257+0243_X_2008_07_09_pus_map.mod wobs J2257+0243_X_2008_07_09_pus_uvs.fits ! Writing UV FITS file: J2257+0243_X_2008_07_09_pus_uvs.fits wwins J2257+0243_X_2008_07_09_pus_map.win ! wwins: Wrote 1 windows to J2257+0243_X_2008_07_09_pus_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 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! clean: niter=1024 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = 0.000887899 Jy ! Component: 100 - total flux cleaned = 0.00153352 Jy ! Component: 150 - total flux cleaned = 0.00177951 Jy ! Component: 200 - total flux cleaned = 0.00186916 Jy ! Component: 250 - total flux cleaned = 0.00178392 Jy ! Component: 300 - total flux cleaned = 0.00167315 Jy ! Component: 350 - total flux cleaned = 0.00167307 Jy ! Component: 400 - total flux cleaned = 0.00159287 Jy ! Component: 450 - total flux cleaned = 0.00154068 Jy ! Component: 500 - total flux cleaned = 0.00154052 Jy ! Component: 550 - total flux cleaned = 0.00149071 Jy ! Component: 600 - total flux cleaned = 0.00151569 Jy ! Component: 650 - total flux cleaned = 0.00153999 Jy ! Component: 700 - total flux cleaned = 0.00146908 Jy ! Component: 750 - total flux cleaned = 0.00149273 Jy ! Component: 800 - total flux cleaned = 0.00151556 Jy ! Component: 850 - total flux cleaned = 0.00149268 Jy ! Component: 900 - total flux cleaned = 0.00151472 Jy ! Component: 950 - total flux cleaned = 0.00149265 Jy ! Component: 1000 - total flux cleaned = 0.00151425 Jy ! Total flux subtracted in 1024 components = 0.00153543 Jy ! Clean residual min=-0.001149 max=0.001226 Jy/beam ! Clean residual mean=0.000017 rms=0.000434 Jy/beam ! Combined flux in latest and established models = 0.244129 Jy keep ! Adding 83 model components to the UV plane model. ! The established model now contains 108 components and 0.244129 Jy wmap "J2257+0243_X_2008_07_09_pus\_map.fits" ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.553 x 1.78 at -12.93 degrees (North through East) ! Clean map min=-0.0014684 max=0.23335 Jy/beam ! Writing clean map to FITS file: J2257+0243_X_2008_07_09_pus_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.233348 invert ! Inverting map ! Your choice of large map pixels excluded 4.6% of the data. ! The x-axis pixel size should ideally be below 0.1748 milli-arcsec float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000434281 device "J2257+0243_X_2008_07_09_pus\_map.eps/VPS" ! Attempting to open device: 'J2257+0243_X_2008_07_09_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.558327 0.558327 1.11665 2.23331 4.46662 8.93323 17.8665 35.7329 71.4659 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0013 print "peak=",int(1000*peak_flux)/1000 ! peak= 0.233 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.553 x 1.78 at -12.93 degrees (North through East) ! Clean map min=-0.0014684 max=0.23335 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J2257+0243_X_2008_07_09_pus\_map.gif/vgif" ! Attempting to open device: 'J2257+0243_X_2008_07_09_pus_map.gif/vgif' mapplot cln quit ! Quitting program ! Log file J2257+0243_X_2008_07_09_pus_uvs.log closed on Sun Oct 10 20:20:26 2010