! Started logfile: J1957-3845_X_2003_09_17_pus_uvs.log on Sun May 13 22:23:20 2007 obs J1957-3845_X_2003_09_17_pus_uva.fits ! Reading UV FITS file: J1957-3845_X_2003_09_17_pus_uva.fits ! AN table 1: 136 integrations on 120 of 120 possible baselines. ! AN table 2: 62 integrations on 120 of 120 possible baselines. ! AN table 3: 267 integrations on 120 of 120 possible baselines. ! Apparent sampling: 0.0876344 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J1957-3845 ! Warning: Unknown AN-table MNTSTA value (3). ! Will assume that it is ground-based. ! Warning: Unknown AN-table MNTSTA value (3). ! Will assume that it is ground-based. ! Warning: Unknown AN-table MNTSTA value (3). ! Will assume that it is ground-based. ! ! 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 1493 lines of history. ! ! Reading 19560 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 float field_size field_size = 256 float field_cell field_cell = 0.2 float 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 1751 telescope corrections were flagged in sub-array 1. ! A total of 992 telescope corrections were flagged in sub-array 2. ! A total of 3171 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 2. ! A total of 1751 telescope corrections were flagged in sub-array 1. ! A total of 992 telescope corrections were flagged in sub-array 2. ! A total of 3171 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 3. ! A total of 1755 telescope corrections were flagged in sub-array 1. ! A total of 992 telescope corrections were flagged in sub-array 2. ! A total of 3171 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 4. ! A total of 1755 telescope corrections were flagged in sub-array 1. ! A total of 992 telescope corrections were flagged in sub-array 2. ! A total of 3171 telescope corrections were flagged in sub-array 3. ! ! Fit before self-cal, rms=1.486899Jy sigma=0.009698 ! Fit after self-cal, rms=1.486761Jy sigma=0.009696 ! 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 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.6155 mas, bmaj=2.023 mas, bpa=3.39 degrees ! Estimated noise=1539 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 = 1.5696 Jy ! Component: 100 - total flux cleaned = 1.91526 Jy ! Total flux subtracted in 100 components = 1.91526 Jy ! Clean residual min=-0.046500 max=0.113121 Jy/beam ! Clean residual mean=0.001102 rms=0.016711 Jy/beam ! Combined flux in latest and established models = 1.91526 Jy ! Performing phase self-cal ! Adding 3 model components to the UV plane model. ! The established model now contains 3 components and 1.91526 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=1.012848Jy sigma=0.002418 ! Fit after self-cal, rms=1.012842Jy sigma=0.002418 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.119172 Jy ! Component: 100 - total flux cleaned = 0.188184 Jy ! Total flux subtracted in 100 components = 0.188184 Jy ! Clean residual min=-0.022378 max=0.035655 Jy/beam ! Clean residual mean=0.000533 rms=0.007199 Jy/beam ! Combined flux in latest and established models = 2.10345 Jy ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 13 components and 2.10345 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.988578Jy sigma=0.001392 ! Fit after self-cal, rms=0.988521Jy sigma=0.001391 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8705 mas, bmaj=2.83 mas, bpa=-1.846 degrees ! Estimated noise=659.045 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 = 0.0766867 Jy ! Component: 100 - total flux cleaned = 0.108367 Jy ! Component: 150 - total flux cleaned = 0.122192 Jy ! Component: 200 - total flux cleaned = 0.128419 Jy ! Total flux subtracted in 200 components = 0.128419 Jy ! Clean residual min=-0.005959 max=0.017479 Jy/beam ! Clean residual mean=0.000981 rms=0.003419 Jy/beam ! Combined flux in latest and established models = 2.23186 Jy ! Performing phase self-cal ! Adding 26 model components to the UV plane model. ! The established model now contains 29 components and 2.23186 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.984084Jy sigma=0.001073 ! Fit after self-cal, rms=0.984010Jy sigma=0.001072 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! Telescope amplitude corrections in sub-array 1: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00* NL 1.02 NY 1.00* ! ON 1.00* OV 1.00* PT 0.99 SC 1.01 ! TS 1.00* KK 1.00* WZ 1.00* WF 1.01 ! ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* GC 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* NY 0.00* ! ON 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* KK 0.00* WZ 0.00* WF 0.00* ! ! Telescope amplitude corrections in sub-array 3: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00 NL 1.01 NY 1.00* ! ON 1.00* OV 1.01 PT 1.00 SC 1.01 ! TS 1.00* KK 1.00 WZ 1.00* WF 1.00* ! ! ! Correcting IF 2. ! Telescope amplitude corrections in sub-array 1: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00* NL 1.02 NY 1.00* ! ON 1.00* OV 1.00* PT 0.99 SC 1.01 ! TS 1.00* KK 1.00* WZ 1.00* WF 1.01 ! ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* GC 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* NY 0.00* ! ON 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* KK 0.00* WZ 0.00* WF 0.00* ! ! Telescope amplitude corrections in sub-array 3: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00 NL 1.01 NY 1.00* ! ON 1.00* OV 1.01 PT 1.00 SC 1.00 ! TS 1.00* KK 1.00 WZ 1.00* WF 1.00* ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00* NL 1.02 NY 1.00* ! ON 1.00* OV 1.00* PT 0.99 SC 1.01 ! TS 1.00* KK 1.00* WZ 1.00* WF 1.01 ! ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* GC 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* NY 0.00* ! ON 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* KK 0.00* WZ 0.00* WF 0.00* ! ! Telescope amplitude corrections in sub-array 3: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00 NL 1.01 NY 1.00* ! ON 1.00* OV 1.01 PT 1.00 SC 1.00 ! TS 1.00* KK 1.00 WZ 1.00* WF 1.00* ! ! ! Correcting IF 4. ! Telescope amplitude corrections in sub-array 1: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00* NL 1.02 NY 1.00* ! ON 1.00* OV 1.00* PT 0.99 SC 1.01 ! TS 1.00* KK 1.00* WZ 1.00* WF 1.01 ! ! Telescope amplitude corrections in sub-array 2: ! FD 0.00* GC 0.00* HN 0.00* KP 0.00* ! LA 0.00* MK 0.00* NL 0.00* NY 0.00* ! ON 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* KK 0.00* WZ 0.00* WF 0.00* ! ! Telescope amplitude corrections in sub-array 3: ! FD 1.00 GC 1.00* HN 1.00* KP 1.00 ! LA 1.00 MK 1.00 NL 1.01 NY 1.00* ! ON 1.00* OV 1.01 PT 1.00 SC 1.00 ! TS 1.00* KK 1.00 WZ 1.00* WF 1.00* ! ! ! Fit before self-cal, rms=0.984010Jy sigma=0.001072 ! Fit after self-cal, rms=0.997028Jy sigma=0.001065 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8714 mas, bmaj=2.835 mas, bpa=-1.884 degrees ! Estimated noise=659.471 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 (-2.4, 0.2). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0110215 Jy ! Component: 100 - total flux cleaned = 0.011483 Jy ! Component: 150 - total flux cleaned = 0.0111732 Jy ! Component: 200 - total flux cleaned = 0.0106185 Jy ! Total flux subtracted in 200 components = 0.0106185 Jy ! Clean residual min=-0.006443 max=0.004444 Jy/beam ! Clean residual mean=-0.000143 rms=0.001448 Jy/beam ! Combined flux in latest and established models = 2.24248 Jy ! Performing phase self-cal ! Adding 15 model components to the UV plane model. ! The established model now contains 44 components and 2.24248 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.996865Jy sigma=0.001057 ! Fit after self-cal, rms=0.996980Jy sigma=0.001056 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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=0.996980Jy sigma=0.001056 ! Fit after self-cal, rms=0.999700Jy sigma=0.001055 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8709 mas, bmaj=2.834 mas, bpa=-1.888 degrees ! Estimated noise=659.287 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00501905 Jy ! Component: 100 - total flux cleaned = 0.0053159 Jy ! Component: 150 - total flux cleaned = 0.0050841 Jy ! Component: 200 - total flux cleaned = 0.00488057 Jy ! Total flux subtracted in 200 components = 0.00488057 Jy ! Clean residual min=-0.005795 max=0.003923 Jy/beam ! Clean residual mean=-0.000028 rms=0.001245 Jy/beam ! Combined flux in latest and established models = 2.24736 Jy selfcal ! Performing phase self-cal ! Adding 20 model components to the UV plane model. ! The established model now contains 58 components and 2.24736 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.999642Jy sigma=0.001052 ! Fit after self-cal, rms=0.999640Jy sigma=0.001052 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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 = 0.00143091 Jy ! Component: 100 - total flux cleaned = 0.00122924 Jy ! Component: 150 - total flux cleaned = 0.00105035 Jy ! Component: 200 - total flux cleaned = 0.000966837 Jy ! Total flux subtracted in 200 components = 0.000966837 Jy ! Clean residual min=-0.005823 max=0.003709 Jy/beam ! Clean residual mean=-0.000065 rms=0.001204 Jy/beam ! Combined flux in latest and established models = 2.24833 Jy ! Performing phase self-cal ! Adding 22 model components to the UV plane model. ! The established model now contains 65 components and 2.24833 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.999613Jy sigma=0.001051 ! Fit after self-cal, rms=0.999622Jy sigma=0.001051 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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=0.999622Jy sigma=0.001051 ! Fit after self-cal, rms=1.000786Jy sigma=0.001050 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8706 mas, bmaj=2.834 mas, bpa=-1.897 degrees ! Estimated noise=659.273 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00305341 Jy ! Component: 100 - total flux cleaned = 0.00305156 Jy ! Component: 150 - total flux cleaned = 0.00296337 Jy ! Component: 200 - total flux cleaned = 0.0028858 Jy ! Total flux subtracted in 200 components = 0.0028858 Jy ! Clean residual min=-0.004881 max=0.003423 Jy/beam ! Clean residual mean=-0.000005 rms=0.001050 Jy/beam ! Combined flux in latest and established models = 2.25122 Jy selfcal ! Performing phase self-cal ! Adding 14 model components to the UV plane model. ! The established model now contains 72 components and 2.25122 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=1.000760Jy sigma=0.001049 ! Fit after self-cal, rms=1.000780Jy sigma=0.001049 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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 = 0.000736142 Jy ! Component: 100 - total flux cleaned = 0.000667238 Jy ! Component: 150 - total flux cleaned = 0.00054203 Jy ! Component: 200 - total flux cleaned = 0.000429815 Jy ! Total flux subtracted in 200 components = 0.000429815 Jy ! Clean residual min=-0.004783 max=0.003180 Jy/beam ! Clean residual mean=-0.000021 rms=0.001022 Jy/beam ! Combined flux in latest and established models = 2.25165 Jy ! Performing phase self-cal ! Adding 17 model components to the UV plane model. ! The established model now contains 74 components and 2.25165 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=1.000766Jy sigma=0.001048 ! Fit after self-cal, rms=1.000775Jy sigma=0.001048 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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=1.000775Jy sigma=0.001048 ! Fit after self-cal, rms=1.000776Jy sigma=0.001048 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=2.789 mas, bmaj=9.454 mas, bpa=2.547 degrees ! Estimated noise=801.226 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00150492 Jy ! Component: 100 - total flux cleaned = 0.0015001 Jy ! Component: 150 - total flux cleaned = 0.00149382 Jy ! Component: 200 - total flux cleaned = 0.00134128 Jy ! Total flux subtracted in 200 components = 0.00134128 Jy ! Clean residual min=-0.002461 max=0.002766 Jy/beam ! Clean residual mean=0.000070 rms=0.000949 Jy/beam ! Combined flux in latest and established models = 2.25299 Jy selfcal ! Performing phase self-cal ! Adding 8 model components to the UV plane model. ! The established model now contains 77 components and 2.25299 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=1.000776Jy sigma=0.001048 ! Fit after self-cal, rms=1.000799Jy sigma=0.001047 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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 = 0.00051099 Jy ! Component: 100 - total flux cleaned = 0.000503763 Jy ! Component: 150 - total flux cleaned = 0.000414569 Jy ! Component: 200 - total flux cleaned = 0.000274824 Jy ! Total flux subtracted in 200 components = 0.000274824 Jy ! Clean residual min=-0.002645 max=0.002754 Jy/beam ! Clean residual mean=0.000048 rms=0.000969 Jy/beam ! Combined flux in latest and established models = 2.25326 Jy ! Performing phase self-cal ! Adding 7 model components to the UV plane model. ! The established model now contains 79 components and 2.25326 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=1.000803Jy sigma=0.001048 ! Fit after self-cal, rms=1.000817Jy sigma=0.001047 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8704 mas, bmaj=2.834 mas, bpa=-1.903 degrees ! Estimated noise=659.293 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.8704 x 2.834 at -1.903 degrees (North through East) ! Clean map min=-0.0042326 max=2.0919 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 ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=1.000817Jy sigma=0.001047 ! Fit after self-cal, rms=0.988427Jy sigma=0.001047 ! Inverting map and beam ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8706 mas, bmaj=2.833 mas, bpa=-1.87 degrees ! Estimated noise=659.434 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00226254 Jy ! Component: 100 - total flux cleaned = 0.00226612 Jy ! Component: 150 - total flux cleaned = 0.00226797 Jy ! Component: 200 - total flux cleaned = 0.00221819 Jy ! Total flux subtracted in 200 components = 0.00221819 Jy ! Clean residual min=-0.003707 max=0.002744 Jy/beam ! Clean residual mean=-0.000025 rms=0.000844 Jy/beam ! Combined flux in latest and established models = 2.25548 Jy ! Performing phase self-cal ! Adding 16 model components to the UV plane model. ! The established model now contains 88 components and 2.25548 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.988418Jy sigma=0.001047 ! Fit after self-cal, rms=0.988428Jy sigma=0.001047 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000469834 Jy ! Component: 100 - total flux cleaned = 0.000375943 Jy ! Component: 150 - total flux cleaned = 0.000334542 Jy ! Component: 200 - total flux cleaned = 0.000335557 Jy ! Total flux subtracted in 200 components = 0.000335557 Jy ! Clean residual min=-0.003662 max=0.002533 Jy/beam ! Clean residual mean=-0.000037 rms=0.000832 Jy/beam ! Combined flux in latest and established models = 2.25582 Jy ! Performing phase self-cal ! Adding 20 model components to the UV plane model. ! The established model now contains 90 components and 2.25582 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.988420Jy sigma=0.001046 ! Fit after self-cal, rms=0.988422Jy sigma=0.001046 ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.988422Jy sigma=0.001046 ! Fit after self-cal, rms=0.986424Jy sigma=0.001046 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 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.6154 mas, bmaj=2.023 mas, bpa=3.367 degrees ! Estimated noise=1541.17 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 1.57184 Jy ! Component: 100 - total flux cleaned = 1.91806 Jy ! Component: 150 - total flux cleaned = 2.03831 Jy ! Component: 200 - total flux cleaned = 2.10756 Jy ! Total flux subtracted in 200 components = 2.10756 Jy ! Clean residual min=-0.018471 max=0.036328 Jy/beam ! Clean residual mean=0.000507 rms=0.006941 Jy/beam ! Combined flux in latest and established models = 2.10756 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 10 model components to the UV plane model. ! The established model now contains 10 components and 2.10756 Jy ! Inverting map and beam ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8704 mas, bmaj=2.834 mas, bpa=-1.883 degrees ! Estimated noise=659.544 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 = 0.0771451 Jy ! Component: 100 - total flux cleaned = 0.112616 Jy ! Component: 150 - total flux cleaned = 0.129528 Jy ! Component: 200 - total flux cleaned = 0.13807 Jy ! Total flux subtracted in 200 components = 0.13807 Jy ! Clean residual min=-0.003043 max=0.005264 Jy/beam ! Clean residual mean=0.000413 rms=0.001471 Jy/beam ! Combined flux in latest and established models = 2.24563 Jy ! Adding 38 model components to the UV plane model. ! The established model now contains 41 components and 2.24563 Jy ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 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 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=2.787 mas, bmaj=9.45 mas, bpa=2.556 degrees ! Estimated noise=801.801 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0063349 Jy ! Component: 100 - total flux cleaned = 0.0089752 Jy ! Component: 150 - total flux cleaned = 0.00974178 Jy ! Component: 200 - total flux cleaned = 0.00988128 Jy ! Total flux subtracted in 200 components = 0.00988128 Jy ! Clean residual min=-0.001579 max=0.002681 Jy/beam ! Clean residual mean=0.000112 rms=0.000782 Jy/beam ! Combined flux in latest and established models = 2.25551 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 = 8.19719e-05 Jy ! Component: 100 - total flux cleaned = 0.000106067 Jy ! Component: 150 - total flux cleaned = 0.000107072 Jy ! Component: 200 - total flux cleaned = 0.000107168 Jy ! Total flux subtracted in 200 components = 0.000107168 Jy ! Clean residual min=-0.001496 max=0.002546 Jy/beam ! Clean residual mean=0.000103 rms=0.000762 Jy/beam ! Combined flux in latest and established models = 2.25562 Jy ! Adding 20 model components to the UV plane model. ! The established model now contains 57 components and 2.25562 Jy ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! Estimated beam: bmin=0.8704 mas, bmaj=2.834 mas, bpa=-1.883 degrees ! Estimated noise=659.544 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000235372 Jy ! Component: 100 - total flux cleaned = 0.000237778 Jy ! Component: 150 - total flux cleaned = 0.000235073 Jy ! Component: 200 - total flux cleaned = 0.000366427 Jy ! Total flux subtracted in 200 components = 0.000366427 Jy ! Clean residual min=-0.002875 max=0.003214 Jy/beam ! Clean residual mean=0.000041 rms=0.000828 Jy/beam ! Combined flux in latest and established models = 2.25598 Jy selfcal ! Performing phase self-cal ! Adding 13 model components to the UV plane model. ! The established model now contains 70 components and 2.25598 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.986469Jy sigma=0.001047 ! Fit after self-cal, rms=0.986476Jy sigma=0.001047 wmodel J1957-3845_X_2003_09_17_pus_map.mod ! Writing 70 model components to file: J1957-3845_X_2003_09_17_pus_map.mod wobs J1957-3845_X_2003_09_17_pus_uvs.fits ! Writing UV FITS file: J1957-3845_X_2003_09_17_pus_uvs.fits wwins J1957-3845_X_2003_09_17_pus_map.win ! wwins: Wrote 2 windows to J1957-3845_X_2003_09_17_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 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! clean: niter=1024 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = -0.000900609 Jy ! Component: 100 - total flux cleaned = -0.000800696 Jy ! Component: 150 - total flux cleaned = -0.0006107 Jy ! Component: 200 - total flux cleaned = -0.000344467 Jy ! Component: 250 - total flux cleaned = -5.34908e-05 Jy ! Component: 300 - total flux cleaned = 0.000221238 Jy ! Component: 350 - total flux cleaned = 0.000520409 Jy ! Component: 400 - total flux cleaned = 0.000699179 Jy ! Component: 450 - total flux cleaned = 0.000768298 Jy ! Component: 500 - total flux cleaned = 0.000868133 Jy ! Component: 550 - total flux cleaned = 0.000868388 Jy ! Component: 600 - total flux cleaned = 0.000775061 Jy ! Component: 650 - total flux cleaned = 0.000653889 Jy ! Component: 700 - total flux cleaned = 0.000536282 Jy ! Component: 750 - total flux cleaned = 0.000450121 Jy ! Component: 800 - total flux cleaned = 0.000310026 Jy ! Component: 850 - total flux cleaned = 0.000200926 Jy ! Component: 900 - total flux cleaned = 0.000174578 Jy ! Component: 950 - total flux cleaned = 6.97826e-05 Jy ! Component: 1000 - total flux cleaned = 1.8609e-05 Jy ! Total flux subtracted in 1024 components = -6.63904e-06 Jy ! Clean residual min=-0.001550 max=0.001430 Jy/beam ! Clean residual mean=0.000010 rms=0.000517 Jy/beam ! Combined flux in latest and established models = 2.25598 Jy keep ! Adding 58 model components to the UV plane model. ! The established model now contains 126 components and 2.25598 Jy wmap "J1957-3845_X_2003_09_17_pus\_map.fits" ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.8704 x 2.834 at -1.883 degrees (North through East) ! Clean map min=-0.0036043 max=2.0952 Jy/beam ! Writing clean map to FITS file: J1957-3845_X_2003_09_17_pus_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 2.09521 invert ! Inverting map ! Your choice of large map pixels excluded 1.14% of the data. ! The x-axis pixel size should ideally be below 0.1905 milli-arcsec float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000517612 device "J1957-3845_X_2003_09_17_pus\_map.eps/VPS" ! Attempting to open device: 'J1957-3845_X_2003_09_17_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.0741135 0.0741135 0.148227 0.296454 0.592908 1.18582 2.37163 4.74327 9.48653 18.9731 37.9461 75.8923 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0015 print "peak=",int(1000*peak_flux)/1000 ! peak= 2.095 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.8704 x 2.834 at -1.883 degrees (North through East) ! Clean map min=-0.0036043 max=2.0952 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1957-3845_X_2003_09_17_pus\_map.gif/vgif" ! Attempting to open device: 'J1957-3845_X_2003_09_17_pus_map.gif/vgif' mapplot cln quit ! Quitting program ! Log file J1957-3845_X_2003_09_17_pus_uvs.log closed on Sun May 13 22:24:39 2007