! Started logfile: J1957-3845_S_2007_12_05_pus_uvs.log on Sat Sep 11 23:23:28 2010 obs J1957-3845_S_2007_12_05_pus_uva.fits ! Reading UV FITS file: J1957-3845_S_2007_12_05_pus_uva.fits ! AN table 1: 149 integrations on 136 of 136 possible baselines. ! AN table 2: 15 integrations on 136 of 136 possible baselines. ! AN table 3: 122 integrations on 136 of 136 possible baselines. ! Apparent sampling: 0.034965 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J1957-3845 ! ! 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 2.23697e+09 8e+06 1 8e+06 ! 02 2 2.26697e+09 8e+06 1 8e+06 ! 03 3 2.35697e+09 8e+06 1 8e+06 ! 04 4 2.37697e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 1723 lines of history. ! ! Reading 5440 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 2187 telescope corrections were flagged in sub-array 1. ! A total of 225 telescope corrections were flagged in sub-array 2. ! A total of 1593 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 2. ! A total of 2187 telescope corrections were flagged in sub-array 1. ! A total of 225 telescope corrections were flagged in sub-array 2. ! A total of 1593 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 3. ! A total of 2187 telescope corrections were flagged in sub-array 1. ! A total of 225 telescope corrections were flagged in sub-array 2. ! A total of 1593 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 4. ! A total of 2187 telescope corrections were flagged in sub-array 1. ! A total of 225 telescope corrections were flagged in sub-array 2. ! A total of 1593 telescope corrections were flagged in sub-array 3. ! ! Fit before self-cal, rms=1.517726Jy sigma=0.011424 ! Fit after self-cal, rms=1.296396Jy sigma=0.009717 ! 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=3.956 mas, bmaj=18.36 mas, bpa=-16.53 degrees ! Estimated noise=2717.48 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 = 1.73117 Jy ! Component: 100 - total flux cleaned = 2.11869 Jy ! Total flux subtracted in 100 components = 2.11869 Jy ! Clean residual min=-0.062128 max=0.130174 Jy/beam ! Clean residual mean=0.005992 rms=0.033030 Jy/beam ! Combined flux in latest and established models = 2.11869 Jy ! Performing phase self-cal ! Adding 6 model components to the UV plane model. ! The established model now contains 6 components and 2.11869 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.362840Jy sigma=0.002712 ! Fit after self-cal, rms=0.362853Jy sigma=0.002712 ! 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=7.859 mas, bmaj=25.88 mas, bpa=-13.26 degrees ! Estimated noise=1342.49 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 = 0.15575 Jy ! Component: 100 - total flux cleaned = 0.209949 Jy ! Component: 150 - total flux cleaned = 0.225133 Jy ! Component: 200 - total flux cleaned = 0.223757 Jy ! Total flux subtracted in 200 components = 0.223757 Jy ! Clean residual min=-0.014668 max=0.017411 Jy/beam ! Clean residual mean=-0.001213 rms=0.005991 Jy/beam ! Combined flux in latest and established models = 2.34245 Jy ! Performing phase self-cal ! Adding 39 model components to the UV plane model. ! The established model now contains 40 components and 2.34245 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.306287Jy sigma=0.002250 ! Fit after self-cal, rms=0.306374Jy sigma=0.002249 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 12 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.08 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 0.98 MK 0.94 ! NL 1.00* NY 1.00* ON 1.00* OV 0.95 ! PT 1.00 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 6 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.07 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 1.00 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 0.96 ! PT 0.98 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 21 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 1.09 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 1.00 MK 1.00* ! NL 0.99 NY 1.00* ON 1.00* OV 1.00* ! PT 1.02 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Correcting IF 2. ! A total of 12 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.99 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 1.07 MK 0.99 ! NL 1.00* NY 1.00* ON 1.00* OV 0.98 ! PT 1.00 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 6 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 0.96 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 1.09 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 1.02 ! PT 1.02 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 21 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.98 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 1.08 MK 1.00* ! NL 1.01 NY 1.00* ON 1.00* OV 1.00* ! PT 1.02 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Correcting IF 3. ! A total of 12 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.98 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 0.98 MK 1.14 ! NL 1.00* NY 1.00* ON 1.00* OV 1.07 ! PT 1.04 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 6 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 0.97 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 1.03 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 1.02 ! PT 1.05 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 21 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.97 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 0.99 MK 1.00* ! NL 1.06 NY 1.00* ON 1.00* OV 1.00* ! PT 1.05 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Correcting IF 4. ! A total of 12 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.97 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 0.98 MK 0.99 ! NL 1.00* NY 1.00* ON 1.00* OV 0.97 ! PT 0.91 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 6 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.03 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 1.00 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 0.97 ! PT 0.93 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 21 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.95 HH 1.00* HN 1.00* ! KB 1.00* KP 1.00* LA 0.98 MK 1.00* ! NL 0.95 NY 1.00* ON 1.00* OV 1.00* ! PT 0.93 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Fit before self-cal, rms=0.306374Jy sigma=0.002249 ! Fit after self-cal, rms=0.266401Jy sigma=0.001929 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=7.797 mas, bmaj=25.83 mas, bpa=-13.35 degrees ! Estimated noise=1361.51 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 = -0.00133991 Jy ! Component: 100 - total flux cleaned = -0.00200121 Jy ! Component: 150 - total flux cleaned = -0.00227904 Jy ! Component: 200 - total flux cleaned = -0.00253014 Jy ! Total flux subtracted in 200 components = -0.00253014 Jy ! Clean residual min=-0.008821 max=0.009270 Jy/beam ! Clean residual mean=-0.000346 rms=0.002854 Jy/beam ! Combined flux in latest and established models = 2.33992 Jy ! Performing phase self-cal ! Adding 15 model components to the UV plane model. ! The established model now contains 54 components and 2.33992 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.266137Jy sigma=0.001928 ! Fit after self-cal, rms=0.266199Jy sigma=0.001928 ! 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=0.266199Jy sigma=0.001928 ! Fit after self-cal, rms=0.266283Jy sigma=0.001921 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=7.793 mas, bmaj=25.83 mas, bpa=-13.36 degrees ! Estimated noise=1362.57 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000974364 Jy ! Component: 100 - total flux cleaned = -0.00141482 Jy ! Component: 150 - total flux cleaned = -0.00177461 Jy ! Component: 200 - total flux cleaned = -0.00198323 Jy ! Total flux subtracted in 200 components = -0.00198323 Jy ! Clean residual min=-0.008253 max=0.008288 Jy/beam ! Clean residual mean=-0.000425 rms=0.002606 Jy/beam ! Combined flux in latest and established models = 2.33793 Jy selfcal ! Performing phase self-cal ! Adding 21 model components to the UV plane model. ! The established model now contains 64 components and 2.33793 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.266045Jy sigma=0.001921 ! Fit after self-cal, rms=0.266044Jy sigma=0.001921 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 = 3.72245e-06 Jy ! Component: 100 - total flux cleaned = 1.5006e-06 Jy ! Component: 150 - total flux cleaned = 4.08503e-06 Jy ! Component: 200 - total flux cleaned = 9.54384e-05 Jy ! Total flux subtracted in 200 components = 9.54384e-05 Jy ! Clean residual min=-0.008400 max=0.007721 Jy/beam ! Clean residual mean=-0.000451 rms=0.002526 Jy/beam ! Combined flux in latest and established models = 2.33803 Jy ! Performing phase self-cal ! Adding 16 model components to the UV plane model. ! The established model now contains 75 components and 2.33803 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.265973Jy sigma=0.001920 ! Fit after self-cal, rms=0.265973Jy sigma=0.001920 ! 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=0.265973Jy sigma=0.001920 ! Fit after self-cal, rms=0.269790Jy sigma=0.001862 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=7.787 mas, bmaj=25.8 mas, bpa=-13.34 degrees ! Estimated noise=1364.33 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00239985 Jy ! Component: 100 - total flux cleaned = 0.00239691 Jy ! Component: 150 - total flux cleaned = 0.00240306 Jy ! Component: 200 - total flux cleaned = 0.00240238 Jy ! Total flux subtracted in 200 components = 0.00240238 Jy ! Clean residual min=-0.004955 max=0.004982 Jy/beam ! Clean residual mean=-0.000647 rms=0.001350 Jy/beam ! Combined flux in latest and established models = 2.34043 Jy selfcal ! Performing phase self-cal ! Adding 32 model components to the UV plane model. ! The established model now contains 102 components and 2.34043 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.269592Jy sigma=0.001862 ! Fit after self-cal, rms=0.269624Jy sigma=0.001862 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 = -1.59239e-06 Jy ! Component: 100 - total flux cleaned = -0.000109391 Jy ! Component: 150 - total flux cleaned = -0.000271226 Jy ! Component: 200 - total flux cleaned = -0.000421526 Jy ! Total flux subtracted in 200 components = -0.000421526 Jy ! Clean residual min=-0.004847 max=0.004842 Jy/beam ! Clean residual mean=-0.000626 rms=0.001277 Jy/beam ! Combined flux in latest and established models = 2.34001 Jy ! Performing phase self-cal ! Adding 14 model components to the UV plane model. ! The established model now contains 107 components and 2.34001 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.269593Jy sigma=0.001863 ! Fit after self-cal, rms=0.269591Jy sigma=0.001863 ! 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=0.269591Jy sigma=0.001863 ! Fit after self-cal, rms=0.270252Jy sigma=0.001862 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=11.52 mas, bmaj=29.48 mas, bpa=-5.148 degrees ! Estimated noise=1386.67 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00196815 Jy ! Component: 100 - total flux cleaned = 0.00205897 Jy ! Component: 150 - total flux cleaned = 0.00198755 Jy ! Component: 200 - total flux cleaned = 0.00193815 Jy ! Total flux subtracted in 200 components = 0.00193815 Jy ! Clean residual min=-0.004570 max=0.004668 Jy/beam ! Clean residual mean=-0.000660 rms=0.001359 Jy/beam ! Combined flux in latest and established models = 2.34195 Jy selfcal ! Performing phase self-cal ! Adding 22 model components to the UV plane model. ! The established model now contains 129 components and 2.34195 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.270075Jy sigma=0.001862 ! Fit after self-cal, rms=0.270076Jy sigma=0.001862 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 = 4.02468e-06 Jy ! Component: 100 - total flux cleaned = -2.97873e-05 Jy ! Component: 150 - total flux cleaned = -7.87356e-05 Jy ! Component: 200 - total flux cleaned = -0.000136551 Jy ! Total flux subtracted in 200 components = -0.000136551 Jy ! Clean residual min=-0.004451 max=0.004563 Jy/beam ! Clean residual mean=-0.000657 rms=0.001301 Jy/beam ! Combined flux in latest and established models = 2.34181 Jy ! Performing phase self-cal ! Adding 23 model components to the UV plane model. ! The established model now contains 143 components and 2.34181 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.270040Jy sigma=0.001862 ! Fit after self-cal, rms=0.270039Jy sigma=0.001862 ! 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=7.786 mas, bmaj=25.78 mas, bpa=-13.32 degrees ! Estimated noise=1366.46 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.786 x 25.78 at -13.32 degrees (North through East) ! Clean map min=-0.004724 max=2.2036 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=0.270039Jy sigma=0.001862 ! Fit after self-cal, rms=0.155070Jy sigma=0.001043 ! Inverting map and beam ! Estimated beam: bmin=7.792 mas, bmaj=25.78 mas, bpa=-13.3 degrees ! Estimated noise=1366.6 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 9.67975e-05 Jy ! Component: 100 - total flux cleaned = 6.28768e-05 Jy ! Component: 150 - total flux cleaned = 3.22462e-05 Jy ! Component: 200 - total flux cleaned = -2.94642e-05 Jy ! Total flux subtracted in 200 components = -2.94642e-05 Jy ! Clean residual min=-0.004602 max=0.004207 Jy/beam ! Clean residual mean=-0.000455 rms=0.001244 Jy/beam ! Combined flux in latest and established models = 2.34178 Jy ! Performing phase self-cal ! Adding 11 model components to the UV plane model. ! The established model now contains 150 components and 2.34178 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.155052Jy sigma=0.001043 ! Fit after self-cal, rms=0.155053Jy sigma=0.001043 ! Inverting map ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -5.49282e-05 Jy ! Component: 100 - total flux cleaned = -8.3535e-05 Jy ! Component: 150 - total flux cleaned = -0.000112531 Jy ! Component: 200 - total flux cleaned = -0.000140432 Jy ! Total flux subtracted in 200 components = -0.000140432 Jy ! Clean residual min=-0.004530 max=0.004188 Jy/beam ! Clean residual mean=-0.000450 rms=0.001228 Jy/beam ! Combined flux in latest and established models = 2.34164 Jy ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 153 components and 2.34164 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.155042Jy sigma=0.001042 ! Fit after self-cal, rms=0.155042Jy sigma=0.001042 ! Inverting map ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.155042Jy sigma=0.001042 ! Fit after self-cal, rms=0.155068Jy sigma=0.001042 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=3.94 mas, bmaj=18.36 mas, bpa=-16.59 degrees ! Estimated noise=2746.7 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 1.73494 Jy ! Component: 100 - total flux cleaned = 2.1263 Jy ! Component: 150 - total flux cleaned = 2.25864 Jy ! Component: 200 - total flux cleaned = 2.31227 Jy ! Total flux subtracted in 200 components = 2.31227 Jy ! Clean residual min=-0.015643 max=0.022251 Jy/beam ! Clean residual mean=0.000666 rms=0.006637 Jy/beam ! Combined flux in latest and established models = 2.31227 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 34 model components to the UV plane model. ! The established model now contains 34 components and 2.31227 Jy ! Inverting map and beam ! Estimated beam: bmin=7.79 mas, bmaj=25.78 mas, bpa=-13.3 degrees ! Estimated noise=1366.66 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 = 0.0234871 Jy ! Component: 100 - total flux cleaned = 0.0299922 Jy ! Component: 150 - total flux cleaned = 0.0302023 Jy ! Component: 200 - total flux cleaned = 0.0299334 Jy ! Total flux subtracted in 200 components = 0.0299334 Jy ! Clean residual min=-0.004434 max=0.005504 Jy/beam ! Clean residual mean=-0.000457 rms=0.001779 Jy/beam ! Combined flux in latest and established models = 2.3422 Jy ! Adding 31 model components to the UV plane model. ! The established model now contains 58 components and 2.3422 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=11.52 mas, bmaj=29.47 mas, bpa=-5.131 degrees ! Estimated noise=1386.75 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000540647 Jy ! Component: 100 - total flux cleaned = -0.000882736 Jy ! Component: 150 - total flux cleaned = -0.00109972 Jy ! Component: 200 - total flux cleaned = -0.00129198 Jy ! Total flux subtracted in 200 components = -0.00129198 Jy ! Clean residual min=-0.003717 max=0.004852 Jy/beam ! Clean residual mean=-0.000449 rms=0.001565 Jy/beam ! Combined flux in latest and established models = 2.34091 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 = -0.000168933 Jy ! Component: 100 - total flux cleaned = -0.000320584 Jy ! Component: 150 - total flux cleaned = -0.000413633 Jy ! Component: 200 - total flux cleaned = -0.000540107 Jy ! Total flux subtracted in 200 components = -0.000540107 Jy ! Clean residual min=-0.003732 max=0.004497 Jy/beam ! Clean residual mean=-0.000410 rms=0.001482 Jy/beam ! Combined flux in latest and established models = 2.34037 Jy ! Adding 30 model components to the UV plane model. ! The established model now contains 79 components and 2.34037 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=7.79 mas, bmaj=25.78 mas, bpa=-13.3 degrees ! Estimated noise=1366.66 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000359954 Jy ! Component: 100 - total flux cleaned = -0.00036133 Jy ! Component: 150 - total flux cleaned = -0.000407967 Jy ! Component: 200 - total flux cleaned = -0.000409942 Jy ! Total flux subtracted in 200 components = -0.000409942 Jy ! Clean residual min=-0.004333 max=0.004044 Jy/beam ! Clean residual mean=-0.000327 rms=0.001367 Jy/beam ! Combined flux in latest and established models = 2.33996 Jy selfcal ! Performing phase self-cal ! Adding 22 model components to the UV plane model. ! The established model now contains 101 components and 2.33996 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.155076Jy sigma=0.001043 ! Fit after self-cal, rms=0.155065Jy sigma=0.001043 wmodel J1957-3845_S_2007_12_05_pus_map.mod ! Writing 101 model components to file: J1957-3845_S_2007_12_05_pus_map.mod wobs J1957-3845_S_2007_12_05_pus_uvs.fits ! Writing UV FITS file: J1957-3845_S_2007_12_05_pus_uvs.fits wwins J1957-3845_S_2007_12_05_pus_map.win ! wwins: Wrote 1 windows to J1957-3845_S_2007_12_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 = -0.000484738 Jy ! Component: 100 - total flux cleaned = -0.000859931 Jy ! Component: 150 - total flux cleaned = -0.00142792 Jy ! Component: 200 - total flux cleaned = -0.0016352 Jy ! Component: 250 - total flux cleaned = -0.00211716 Jy ! Component: 300 - total flux cleaned = -0.00247819 Jy ! Component: 350 - total flux cleaned = -0.00290221 Jy ! Component: 400 - total flux cleaned = -0.00326126 Jy ! Component: 450 - total flux cleaned = -0.00364522 Jy ! Component: 500 - total flux cleaned = -0.00405214 Jy ! Component: 550 - total flux cleaned = -0.00447917 Jy ! Component: 600 - total flux cleaned = -0.00485557 Jy ! Component: 650 - total flux cleaned = -0.00518563 Jy ! Component: 700 - total flux cleaned = -0.00544021 Jy ! Component: 750 - total flux cleaned = -0.00565477 Jy ! Component: 800 - total flux cleaned = -0.00586371 Jy ! Component: 850 - total flux cleaned = -0.00609554 Jy ! Component: 900 - total flux cleaned = -0.00629284 Jy ! Component: 950 - total flux cleaned = -0.0065383 Jy ! Component: 1000 - total flux cleaned = -0.00672409 Jy ! Component: 1050 - total flux cleaned = -0.00695813 Jy ! Component: 1100 - total flux cleaned = -0.00721264 Jy ! Component: 1150 - total flux cleaned = -0.00741305 Jy ! Component: 1200 - total flux cleaned = -0.00761029 Jy ! Component: 1250 - total flux cleaned = -0.0078047 Jy ! Component: 1300 - total flux cleaned = -0.00797209 Jy ! Component: 1350 - total flux cleaned = -0.00811384 Jy ! Component: 1400 - total flux cleaned = -0.00823057 Jy ! Component: 1450 - total flux cleaned = -0.00834598 Jy ! Component: 1500 - total flux cleaned = -0.00848276 Jy ! Component: 1550 - total flux cleaned = -0.0085728 Jy ! Component: 1600 - total flux cleaned = -0.0086621 Jy ! Component: 1650 - total flux cleaned = -0.00879441 Jy ! Component: 1700 - total flux cleaned = -0.00888155 Jy ! Component: 1750 - total flux cleaned = -0.00898943 Jy ! Component: 1800 - total flux cleaned = -0.00907469 Jy ! Component: 1850 - total flux cleaned = -0.00913821 Jy ! Component: 1900 - total flux cleaned = -0.00922209 Jy ! Component: 1950 - total flux cleaned = -0.00930494 Jy ! Component: 2000 - total flux cleaned = -0.00936654 Jy ! Total flux subtracted in 2048 components = -0.00940732 Jy ! Clean residual min=-0.001171 max=0.001528 Jy/beam ! Clean residual mean=-0.000015 rms=0.000435 Jy/beam ! Combined flux in latest and established models = 2.33055 Jy keep ! Adding 105 model components to the UV plane model. ! The established model now contains 206 components and 2.33055 Jy wmap "J1957-3845_S_2007_12_05_pus\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.79 x 25.78 at -13.3 degrees (North through East) ! Clean map min=-0.0039638 max=2.2053 Jy/beam ! Writing clean map to FITS file: J1957-3845_S_2007_12_05_pus_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 2.20531 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000457124 device "J1957-3845_S_2007_12_05_pus\_map.eps/VPS" ! Attempting to open device: 'J1957-3845_S_2007_12_05_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.0621851 0.0621851 0.12437 0.24874 0.497481 0.994962 1.98992 3.97985 7.95969 15.9194 31.8388 63.6776 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0013 print "peak=",int(1000*peak_flux)/1000 ! peak= 2.205 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.79 x 25.78 at -13.3 degrees (North through East) ! Clean map min=-0.0039638 max=2.2053 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1957-3845_S_2007_12_05_pus\_map.gif/vgif" ! Attempting to open device: 'J1957-3845_S_2007_12_05_pus_map.gif/vgif' mapplot cln quit ! Quitting program ! Log file J1957-3845_S_2007_12_05_pus_uvs.log closed on Sat Sep 11 23:23:33 2010