! Started logfile: J1957-3845_S_2001_07_05_pus_uvs.log on Mon Aug 13 14:07:09 2007 obs J1957-3845_S_2001_07_05_pus_uva.fits ! Reading UV FITS file: J1957-3845_S_2001_07_05_pus_uva.fits ! AN table 1: 49 integrations on 171 of 171 possible baselines. ! AN table 2: 26 integrations on 171 of 171 possible baselines. ! Apparent sampling: 0.091462 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. ! ! There are 4 IFs, and a total of 4 channels: ! ! IF Channel Frequency Freq offset Number of Overall IF ! origin at origin per channel channels bandwidth ! ------------------------------------------------------------- (Hz) ! 01 1 2.22997e+09 8e+06 1 8e+06 ! 02 2 2.25997e+09 8e+06 1 8e+06 ! 03 3 2.34997e+09 8e+06 1 8e+06 ! 04 4 2.36997e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 1778 lines of history. ! ! Reading 4692 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 = 512 print "field_cell =",field_cell ! field_cell = 0.5 print "taper_size =",taper_size ! taper_size = 20 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 = 512x512 pixels with 0.500x0.500 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 580 telescope corrections were flagged in sub-array 1. ! A total of 494 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 2. ! A total of 584 telescope corrections were flagged in sub-array 1. ! A total of 494 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 3. ! A total of 581 telescope corrections were flagged in sub-array 1. ! A total of 494 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 4. ! A total of 581 telescope corrections were flagged in sub-array 1. ! A total of 494 telescope corrections were flagged in sub-array 2. ! ! Fit before self-cal, rms=0.492363Jy sigma=0.003464 ! Fit after self-cal, rms=0.310967Jy sigma=0.002106 ! clrmod: Cleared the established, tentative and continuum models. ! Redundant starting model cleared. uvw 2,-1 ! Uniform weighting binwidth: 2 (pixels). ! Gridding weights will be scaled by errors raised to the power -1. ! Radial weighting is not currently selected. flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.286 mas, bmaj=8.654 mas, bpa=-11.91 degrees ! Estimated noise=2386.02 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 = 0.58043 Jy ! Component: 100 - total flux cleaned = 0.721032 Jy ! Total flux subtracted in 100 components = 0.721032 Jy ! Clean residual min=-0.034259 max=0.056984 Jy/beam ! Clean residual mean=0.000020 rms=0.010918 Jy/beam ! Combined flux in latest and established models = 0.721032 Jy ! Performing phase self-cal ! Adding 7 model components to the UV plane model. ! The established model now contains 7 components and 0.721032 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.235689Jy sigma=0.001692 ! Fit after self-cal, rms=0.235701Jy sigma=0.001692 ! Inverting map 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 ! Estimated beam: bmin=3.013 mas, bmaj=9.648 mas, bpa=-11.11 degrees ! Estimated noise=1445.69 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 = 0.0892539 Jy ! Component: 100 - total flux cleaned = 0.128543 Jy ! Component: 150 - total flux cleaned = 0.147996 Jy ! Component: 200 - total flux cleaned = 0.15838 Jy ! Total flux subtracted in 200 components = 0.15838 Jy ! Clean residual min=-0.014579 max=0.014812 Jy/beam ! Clean residual mean=-0.000508 rms=0.003927 Jy/beam ! Combined flux in latest and established models = 0.879412 Jy ! Performing phase self-cal ! Adding 25 model components to the UV plane model. ! The established model now contains 28 components and 0.879412 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.207621Jy sigma=0.001424 ! Fit after self-cal, rms=0.207661Jy sigma=0.001423 ! Inverting map 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 1.00* FD 0.98 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 0.93 KP 0.94 ! LA 1.02 MC 1.00* MK 0.99 NL 1.02 ! NY 1.00* OV 0.96 PT 0.97 SC 0.98 ! TS 1.00* WF 1.31 WZ 1.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MC 0.00* MK 0.00* NL 0.00* ! NY 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* WF 0.00* WZ 0.00* ! ! ! Correcting IF 2. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.97 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 0.91 KP 0.97 ! LA 0.98 MC 1.00* MK 0.97 NL 0.98 ! NY 1.00* OV 1.02 PT 0.98 SC 1.01 ! TS 1.00* WF 1.32 WZ 1.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MC 0.00* MK 0.00* NL 0.00* ! NY 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* WF 0.00* WZ 0.00* ! ! ! Correcting IF 3. ! A total of 9 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.97 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 1.00 KP 1.03 ! LA 0.98 MC 1.00* MK 1.01 NL 1.04 ! NY 1.00* OV 1.03 PT 1.00 SC 1.02 ! TS 1.00* WF 1.38 WZ 1.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MC 0.00* MK 0.00* NL 0.00* ! NY 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* WF 0.00* WZ 0.00* ! ! ! Correcting IF 4. ! A total of 9 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.99 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 0.94 KP 1.01 ! LA 0.98 MC 1.00* MK 1.01 NL 1.02 ! NY 1.00* OV 1.00 PT 1.06 SC 1.01 ! TS 1.00* WF 1.31 WZ 1.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MC 0.00* MK 0.00* NL 0.00* ! NY 0.00* OV 0.00* PT 0.00* SC 0.00* ! TS 0.00* WF 0.00* WZ 0.00* ! ! ! Fit before self-cal, rms=0.207661Jy sigma=0.001423 ! Fit after self-cal, rms=0.211411Jy sigma=0.001383 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=3.016 mas, bmaj=9.666 mas, bpa=-11.02 degrees ! Estimated noise=1445.21 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 = -0.000989904 Jy ! Component: 100 - total flux cleaned = -0.00140985 Jy ! Component: 150 - total flux cleaned = -0.00166281 Jy ! Component: 200 - total flux cleaned = -0.00190195 Jy ! Total flux subtracted in 200 components = -0.00190195 Jy ! Clean residual min=-0.010301 max=0.008864 Jy/beam ! Clean residual mean=-0.000397 rms=0.002726 Jy/beam ! Combined flux in latest and established models = 0.87751 Jy ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 38 components and 0.87751 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.211210Jy sigma=0.001382 ! Fit after self-cal, rms=0.211411Jy sigma=0.001382 ! Inverting map 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=0.211411Jy sigma=0.001382 ! Fit after self-cal, rms=0.212637Jy sigma=0.001373 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=3.022 mas, bmaj=9.688 mas, bpa=-10.94 degrees ! Estimated noise=1445.56 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00198345 Jy ! Component: 100 - total flux cleaned = -0.00186367 Jy ! Component: 150 - total flux cleaned = -0.00196465 Jy ! Component: 200 - total flux cleaned = -0.00205955 Jy ! Total flux subtracted in 200 components = -0.00205955 Jy ! Clean residual min=-0.009754 max=0.008226 Jy/beam ! Clean residual mean=-0.000089 rms=0.002388 Jy/beam ! Combined flux in latest and established models = 0.875451 Jy selfcal ! Performing phase self-cal ! Adding 13 model components to the UV plane model. ! The established model now contains 47 components and 0.875451 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.212449Jy sigma=0.001372 ! Fit after self-cal, rms=0.212481Jy sigma=0.001372 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 new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000316031 Jy ! Component: 100 - total flux cleaned = -0.000402284 Jy ! Component: 150 - total flux cleaned = -0.000486799 Jy ! Component: 200 - total flux cleaned = -0.000571984 Jy ! Total flux subtracted in 200 components = -0.000571984 Jy ! Clean residual min=-0.009689 max=0.008136 Jy/beam ! Clean residual mean=-0.000091 rms=0.002371 Jy/beam ! Combined flux in latest and established models = 0.874879 Jy ! Performing phase self-cal ! Adding 10 model components to the UV plane model. ! The established model now contains 49 components and 0.874879 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.212367Jy sigma=0.001372 ! Fit after self-cal, rms=0.212364Jy sigma=0.001372 ! Inverting map 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=0.212364Jy sigma=0.001372 ! Fit after self-cal, rms=0.212306Jy sigma=0.001372 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=3.025 mas, bmaj=9.704 mas, bpa=-10.89 degrees ! Estimated noise=1444.74 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00140649 Jy ! Component: 100 - total flux cleaned = -0.00148961 Jy ! Component: 150 - total flux cleaned = -0.00157219 Jy ! Component: 200 - total flux cleaned = -0.00171969 Jy ! Total flux subtracted in 200 components = -0.00171969 Jy ! Clean residual min=-0.009493 max=0.007994 Jy/beam ! Clean residual mean=-0.000088 rms=0.002337 Jy/beam ! Combined flux in latest and established models = 0.873159 Jy selfcal ! Performing phase self-cal ! Adding 10 model components to the UV plane model. ! The established model now contains 54 components and 0.873159 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.212185Jy sigma=0.001371 ! Fit after self-cal, rms=0.212183Jy sigma=0.001371 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 new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -8.39603e-05 Jy ! Component: 100 - total flux cleaned = -0.000157281 Jy ! Component: 150 - total flux cleaned = -0.000229164 Jy ! Component: 200 - total flux cleaned = -0.000299881 Jy ! Total flux subtracted in 200 components = -0.000299881 Jy ! Clean residual min=-0.009437 max=0.007985 Jy/beam ! Clean residual mean=-0.000088 rms=0.002324 Jy/beam ! Combined flux in latest and established models = 0.872859 Jy ! Performing phase self-cal ! Adding 10 model components to the UV plane model. ! The established model now contains 57 components and 0.872859 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.212102Jy sigma=0.001371 ! Fit after self-cal, rms=0.212101Jy sigma=0.001371 ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 20 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=0.212101Jy sigma=0.001371 ! Fit after self-cal, rms=0.211998Jy sigma=0.001371 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=8.806 mas, bmaj=27.42 mas, bpa=-4.072 degrees ! Estimated noise=1803.43 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -1.00988e-05 Jy ! Component: 100 - total flux cleaned = -1.05621e-05 Jy ! Component: 150 - total flux cleaned = -6.98858e-05 Jy ! Component: 200 - total flux cleaned = -7.18133e-05 Jy ! Total flux subtracted in 200 components = -7.18133e-05 Jy ! Clean residual min=-0.009367 max=0.009528 Jy/beam ! Clean residual mean=-0.000177 rms=0.003180 Jy/beam ! Combined flux in latest and established models = 0.872787 Jy selfcal ! Performing phase self-cal ! Adding 8 model components to the UV plane model. ! The established model now contains 62 components and 0.872787 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.211924Jy sigma=0.001371 ! Fit after self-cal, rms=0.211911Jy sigma=0.001371 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 new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000176232 Jy ! Component: 100 - total flux cleaned = 0.000112879 Jy ! Component: 150 - total flux cleaned = 5.77341e-05 Jy ! Component: 200 - total flux cleaned = 8.50114e-06 Jy ! Total flux subtracted in 200 components = 8.50114e-06 Jy ! Clean residual min=-0.009318 max=0.009488 Jy/beam ! Clean residual mean=-0.000180 rms=0.003160 Jy/beam ! Combined flux in latest and established models = 0.872796 Jy ! Performing phase self-cal ! Adding 8 model components to the UV plane model. ! The established model now contains 64 components and 0.872796 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.211885Jy sigma=0.001371 ! Fit after self-cal, rms=0.211873Jy sigma=0.001371 ! Inverting map 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 ! Estimated beam: bmin=3.028 mas, bmaj=9.714 mas, bpa=-10.85 degrees ! Estimated noise=1443.78 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.028 x 9.714 at -10.85 degrees (North through East) ! Clean map min=-0.0090291 max=0.78273 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=0.211873Jy sigma=0.001371 ! Fit after self-cal, rms=0.200055Jy sigma=0.001239 ! Inverting map and beam ! Estimated beam: bmin=3.026 mas, bmaj=9.725 mas, bpa=-10.87 degrees ! Estimated noise=1440.81 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00152191 Jy ! Component: 100 - total flux cleaned = -0.00178825 Jy ! Component: 150 - total flux cleaned = -0.00190986 Jy ! Component: 200 - total flux cleaned = -0.00207721 Jy ! Total flux subtracted in 200 components = -0.00207721 Jy ! Clean residual min=-0.008566 max=0.008348 Jy/beam ! Clean residual mean=-0.000091 rms=0.002231 Jy/beam ! Combined flux in latest and established models = 0.870719 Jy ! Performing phase self-cal ! Adding 7 model components to the UV plane model. ! The established model now contains 66 components and 0.870719 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.199981Jy sigma=0.001239 ! Fit after self-cal, rms=0.199975Jy sigma=0.001239 ! Inverting map ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000178801 Jy ! Component: 100 - total flux cleaned = -0.000232734 Jy ! Component: 150 - total flux cleaned = -0.00028295 Jy ! Component: 200 - total flux cleaned = -0.000331508 Jy ! Total flux subtracted in 200 components = -0.000331508 Jy ! Clean residual min=-0.008519 max=0.008367 Jy/beam ! Clean residual mean=-0.000091 rms=0.002227 Jy/beam ! Combined flux in latest and established models = 0.870387 Jy ! Performing phase self-cal ! Adding 14 model components to the UV plane model. ! The established model now contains 72 components and 0.870387 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.199935Jy sigma=0.001239 ! Fit after self-cal, rms=0.199933Jy sigma=0.001239 ! Inverting map ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.199933Jy sigma=0.001239 ! Fit after self-cal, rms=0.200008Jy sigma=0.001239 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 ! Estimated beam: bmin=2.299 mas, bmaj=8.694 mas, bpa=-11.64 degrees ! Estimated noise=2419.94 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.587999 Jy ! Component: 100 - total flux cleaned = 0.728292 Jy ! Component: 150 - total flux cleaned = 0.7916 Jy ! Component: 200 - total flux cleaned = 0.826173 Jy ! Total flux subtracted in 200 components = 0.826173 Jy ! Clean residual min=-0.017994 max=0.018180 Jy/beam ! Clean residual mean=0.000021 rms=0.004638 Jy/beam ! Combined flux in latest and established models = 0.826173 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 13 model components to the UV plane model. ! The established model now contains 13 components and 0.826173 Jy ! Inverting map and beam ! Estimated beam: bmin=3.028 mas, bmaj=9.731 mas, bpa=-10.84 degrees ! Estimated noise=1440.17 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 = 0.0244998 Jy ! Component: 100 - total flux cleaned = 0.0358215 Jy ! Component: 150 - total flux cleaned = 0.0379616 Jy ! Component: 200 - total flux cleaned = 0.0389688 Jy ! Total flux subtracted in 200 components = 0.0389688 Jy ! Clean residual min=-0.009632 max=0.008633 Jy/beam ! Clean residual mean=-0.000086 rms=0.002411 Jy/beam ! Combined flux in latest and established models = 0.865142 Jy ! Adding 22 model components to the UV plane model. ! The established model now contains 33 components and 0.865142 Jy ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 20 mega-wavelengths. clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=8.808 mas, bmaj=27.45 mas, bpa=-4.085 degrees ! Estimated noise=1798.65 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00327251 Jy ! Component: 100 - total flux cleaned = 0.00326281 Jy ! Component: 150 - total flux cleaned = 0.00334787 Jy ! Component: 200 - total flux cleaned = 0.00343219 Jy ! Total flux subtracted in 200 components = 0.00343219 Jy ! Clean residual min=-0.008995 max=0.009894 Jy/beam ! Clean residual mean=-0.000176 rms=0.003153 Jy/beam ! Combined flux in latest and established models = 0.868574 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 = 7.50331e-05 Jy ! Component: 100 - total flux cleaned = 0.000143677 Jy ! Component: 150 - total flux cleaned = 0.000205577 Jy ! Component: 200 - total flux cleaned = 0.000262505 Jy ! Total flux subtracted in 200 components = 0.000262505 Jy ! Clean residual min=-0.008878 max=0.009835 Jy/beam ! Clean residual mean=-0.000179 rms=0.003120 Jy/beam ! Combined flux in latest and established models = 0.868837 Jy ! Adding 14 model components to the UV plane model. ! The established model now contains 42 components and 0.868837 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=3.028 mas, bmaj=9.731 mas, bpa=-10.84 degrees ! Estimated noise=1440.17 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000105586 Jy ! Component: 100 - total flux cleaned = -0.000657402 Jy ! Component: 150 - total flux cleaned = -0.000851903 Jy ! Component: 200 - total flux cleaned = -0.00111868 Jy ! Total flux subtracted in 200 components = -0.00111868 Jy ! Clean residual min=-0.008941 max=0.007923 Jy/beam ! Clean residual mean=-0.000091 rms=0.002277 Jy/beam ! Combined flux in latest and established models = 0.867718 Jy selfcal ! Performing phase self-cal ! Adding 8 model components to the UV plane model. ! The established model now contains 47 components and 0.867718 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.200213Jy sigma=0.001240 ! Fit after self-cal, rms=0.200210Jy sigma=0.001240 wmodel J1957-3845_S_2001_07_05_pus_map.mod ! Writing 47 model components to file: J1957-3845_S_2001_07_05_pus_map.mod wobs J1957-3845_S_2001_07_05_pus_uvs.fits ! Writing UV FITS file: J1957-3845_S_2001_07_05_pus_uvs.fits wwins J1957-3845_S_2001_07_05_pus_map.win ! wwins: Wrote 1 windows to J1957-3845_S_2001_07_05_pus_map.win x = (field_size-8) * field_cell / 4 addwin -x,x,-x,x clean (field_size*4),0.01 ! Inverting map ! clean: niter=2048 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = -0.00069675 Jy ! Component: 100 - total flux cleaned = -0.00133829 Jy ! Component: 150 - total flux cleaned = -0.00275214 Jy ! Component: 200 - total flux cleaned = -0.00375189 Jy ! Component: 250 - total flux cleaned = -0.00510797 Jy ! Component: 300 - total flux cleaned = -0.00629978 Jy ! Component: 350 - total flux cleaned = -0.00715622 Jy ! Component: 400 - total flux cleaned = -0.0079826 Jy ! Component: 450 - total flux cleaned = -0.00887153 Jy ! Component: 500 - total flux cleaned = -0.00964875 Jy ! Component: 550 - total flux cleaned = -0.0104854 Jy ! Component: 600 - total flux cleaned = -0.0110532 Jy ! Component: 650 - total flux cleaned = -0.0113671 Jy ! Component: 700 - total flux cleaned = -0.0117493 Jy ! Component: 750 - total flux cleaned = -0.0120478 Jy ! Component: 800 - total flux cleaned = -0.0124855 Jy ! Component: 850 - total flux cleaned = -0.0127699 Jy ! Component: 900 - total flux cleaned = -0.0129801 Jy ! Component: 950 - total flux cleaned = -0.013391 Jy ! Component: 1000 - total flux cleaned = -0.0139244 Jy ! Component: 1050 - total flux cleaned = -0.0142511 Jy ! Component: 1100 - total flux cleaned = -0.0146364 Jy ! Component: 1150 - total flux cleaned = -0.0149507 Jy ! Component: 1200 - total flux cleaned = -0.0152597 Jy ! Component: 1250 - total flux cleaned = -0.0156243 Jy ! Component: 1300 - total flux cleaned = -0.0159228 Jy ! Component: 1350 - total flux cleaned = -0.0162762 Jy ! Component: 1400 - total flux cleaned = -0.0165085 Jy ! Component: 1450 - total flux cleaned = -0.0169074 Jy ! Component: 1500 - total flux cleaned = -0.0171881 Jy ! Component: 1550 - total flux cleaned = -0.0174649 Jy ! Component: 1600 - total flux cleaned = -0.0178462 Jy ! Component: 1650 - total flux cleaned = -0.0181681 Jy ! Component: 1700 - total flux cleaned = -0.0184321 Jy ! Component: 1750 - total flux cleaned = -0.0186401 Jy ! Component: 1800 - total flux cleaned = -0.018897 Jy ! Component: 1850 - total flux cleaned = -0.0189986 Jy ! Component: 1900 - total flux cleaned = -0.0192493 Jy ! Component: 1950 - total flux cleaned = -0.0194962 Jy ! Component: 2000 - total flux cleaned = -0.0195447 Jy ! Total flux subtracted in 2048 components = -0.0196413 Jy ! Clean residual min=-0.003285 max=0.004005 Jy/beam ! Clean residual mean=-0.000052 rms=0.000975 Jy/beam ! Combined flux in latest and established models = 0.848077 Jy keep ! Adding 127 model components to the UV plane model. ! The established model now contains 174 components and 0.848076 Jy wmap "J1957-3845_S_2001_07_05_pus\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.028 x 9.731 at -10.84 degrees (North through East) ! Clean map min=-0.0070506 max=0.77996 Jy/beam ! Writing clean map to FITS file: J1957-3845_S_2001_07_05_pus_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.779962 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000947666 device "J1957-3845_S_2001_07_05_pus\_map.eps/VPS" ! Attempting to open device: 'J1957-3845_S_2001_07_05_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.364505 0.364505 0.729009 1.45802 2.91604 5.83207 11.6641 23.3283 46.6566 93.3132 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0028 print "peak=",int(1000*peak_flux)/1000 ! peak= 0.779 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.028 x 9.731 at -10.84 degrees (North through East) ! Clean map min=-0.0070506 max=0.77996 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1957-3845_S_2001_07_05_pus\_map.gif/vgif" ! Attempting to open device: 'J1957-3845_S_2001_07_05_pus_map.gif/vgif' mapplot cln quit ! Quitting program ! Log file J1957-3845_S_2001_07_05_pus_uvs.log closed on Mon Aug 13 14:08:24 2007