! Started logfile: J2257+0743_X_2010_10_13_pus_uvs.log on Thu Feb 24 21:20:31 2011 obs J2257+0743_X_2010_10_13_pus_uva.fits ! Reading UV FITS file: J2257+0743_X_2010_10_13_pus_uva.fits ! AN table 1: 165 integrations on 105 of 105 possible baselines. ! AN table 2: 299 integrations on 105 of 105 possible baselines. ! AN table 3: 33 integrations on 105 of 105 possible baselines. ! Apparent sampling: 0.145751 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J2257+0743 ! ! 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 8.40996e+09 8e+06 1 8e+06 ! 02 2 8.47996e+09 8e+06 1 8e+06 ! 03 3 8.79496e+09 8e+06 1 8e+06 ! 04 4 8.89996e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 5200 lines of history. ! ! Reading 30424 visibilities. select I ! Polarization I is unavailable. ! Selecting polarization: RR, channels: 1..4 ! Reading IF 1 channels: 1..1 ! Reading IF 2 channels: 2..2 ! Reading IF 3 channels: 3..3 ! Reading IF 4 channels: 4..4 print "field_size =",field_size ! field_size = 256 print "field_cell =",field_cell ! field_cell = 0.2 print "taper_size =",taper_size ! taper_size = 70 ![@muppet J2257+0743_X_2010_10_13_pus] 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 1419 telescope corrections were flagged in sub-array 1. ! A total of 3708 telescope corrections were flagged in sub-array 2. ! A total of 495 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 2. ! A total of 1419 telescope corrections were flagged in sub-array 1. ! A total of 3708 telescope corrections were flagged in sub-array 2. ! A total of 495 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 3. ! A total of 1419 telescope corrections were flagged in sub-array 1. ! A total of 3708 telescope corrections were flagged in sub-array 2. ! A total of 495 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 4. ! A total of 1545 telescope corrections were flagged in sub-array 1. ! A total of 3843 telescope corrections were flagged in sub-array 2. ! A total of 495 telescope corrections were flagged in sub-array 3. ! ! Fit before self-cal, rms=0.916946Jy sigma=0.010540 ! Fit after self-cal, rms=0.646318Jy sigma=0.007335 ! 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 12.5% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.6115 mas, bmaj=1.166 mas, bpa=-7.864 degrees ! Estimated noise=747.881 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 = 0.284792 Jy ! Component: 100 - total flux cleaned = 0.361827 Jy ! Total flux subtracted in 100 components = 0.361827 Jy ! Clean residual min=-0.012376 max=0.038471 Jy/beam ! Clean residual mean=0.001047 rms=0.005088 Jy/beam ! Combined flux in latest and established models = 0.361827 Jy ! Performing phase self-cal ! Adding 6 model components to the UV plane model. ! The established model now contains 6 components and 0.361827 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.167326Jy sigma=0.001642 ! Fit after self-cal, rms=0.166947Jy sigma=0.001640 ! Inverting map ! Your choice of large map pixels excluded 12.5% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Added new window around map position (-0.8, -0.6). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0392691 Jy ! Component: 100 - total flux cleaned = 0.0607377 Jy ! Total flux subtracted in 100 components = 0.0607377 Jy ! Clean residual min=-0.009405 max=0.023591 Jy/beam ! Clean residual mean=0.000608 rms=0.003242 Jy/beam ! Combined flux in latest and established models = 0.422565 Jy ! Performing phase self-cal ! Adding 13 model components to the UV plane model. ! The established model now contains 14 components and 0.422564 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.155148Jy sigma=0.001436 ! Fit after self-cal, rms=0.154215Jy sigma=0.001428 ! Inverting map ! Your choice of large map pixels excluded 12.5% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Added new window around map position (-1.8, -1.2). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0204568 Jy ! Component: 100 - total flux cleaned = 0.0320888 Jy ! Total flux subtracted in 100 components = 0.0320888 Jy ! Clean residual min=-0.007005 max=0.014711 Jy/beam ! Clean residual mean=0.000386 rms=0.002320 Jy/beam ! Combined flux in latest and established models = 0.454653 Jy ! Performing phase self-cal ! Adding 18 model components to the UV plane model. ! The established model now contains 29 components and 0.454653 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.150766Jy sigma=0.001366 ! Fit after self-cal, rms=0.150289Jy sigma=0.001360 ! Inverting map ! Your choice of large map pixels excluded 12.5% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 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 12.5% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.7329 mas, bmaj=1.635 mas, bpa=-5.922 degrees ! Estimated noise=399.866 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 = 0.0170977 Jy ! Component: 100 - total flux cleaned = 0.0257743 Jy ! Component: 150 - total flux cleaned = 0.0309826 Jy ! Component: 200 - total flux cleaned = 0.0342048 Jy ! Total flux subtracted in 200 components = 0.0342048 Jy ! Clean residual min=-0.003966 max=0.008234 Jy/beam ! Clean residual mean=0.000670 rms=0.001503 Jy/beam ! Combined flux in latest and established models = 0.488858 Jy ! Performing phase self-cal ! Adding 28 model components to the UV plane model. ! The established model now contains 47 components and 0.488858 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.148879Jy sigma=0.001331 ! Fit after self-cal, rms=0.148681Jy sigma=0.001328 ! Inverting map ! Your choice of large map pixels excluded 12.5% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Added new window around map position (-2.8, -1.4). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00795371 Jy ! Component: 100 - total flux cleaned = 0.0108721 Jy ! Component: 150 - total flux cleaned = 0.0118657 Jy ! Component: 200 - total flux cleaned = 0.0124859 Jy ! Total flux subtracted in 200 components = 0.0124859 Jy ! Clean residual min=-0.003487 max=0.003711 Jy/beam ! Clean residual mean=0.000383 rms=0.001056 Jy/beam ! Combined flux in latest and established models = 0.501344 Jy ! Performing phase self-cal ! Adding 21 model components to the UV plane model. ! The established model now contains 63 components and 0.501344 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.148319Jy sigma=0.001322 ! Fit after self-cal, rms=0.148249Jy sigma=0.001321 ! Inverting map ! Your choice of large map pixels excluded 12.5% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 24 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.99 FD 1.02 HH 1.06 HN 1.02 ! KB 1.00* KK 1.00* KP 0.98 LA 1.03 ! MK 1.00* NL 0.99 NY 1.01 OV 1.00 ! PT 1.01 SC 0.94 TS 1.00* ! ! A total of 138 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.97 FD 1.02 HH 1.00* HN 1.00* ! KB 1.00 KK 0.92 KP 0.99 LA 1.00 ! MK 1.06 NL 1.00 NY 1.00* OV 0.99 ! PT 0.98 SC 1.00* TS 0.97 ! ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* FD 0.00* HH 0.00* HN 0.00* ! KB 0.00* KK 0.00* KP 0.00* LA 0.00* ! MK 0.00* NL 0.00* NY 0.00* OV 0.00* ! PT 0.00* SC 0.00* TS 0.00* ! ! ! Correcting IF 2. ! A total of 24 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.06 FD 1.00 HH 1.05 HN 1.02 ! KB 1.00* KK 1.00* KP 0.98 LA 1.01 ! MK 1.00* NL 1.02 NY 1.04 OV 1.03 ! PT 1.02 SC 0.97 TS 1.00* ! ! A total of 138 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.02 FD 1.02 HH 1.00* HN 1.00* ! KB 1.00 KK 1.00 KP 0.98 LA 0.96 ! MK 1.07 NL 1.03 NY 1.00* OV 1.02 ! PT 0.99 SC 1.00* TS 0.96 ! ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* FD 0.00* HH 0.00* HN 0.00* ! KB 0.00* KK 0.00* KP 0.00* LA 0.00* ! MK 0.00* NL 0.00* NY 0.00* OV 0.00* ! PT 0.00* SC 0.00* TS 0.00* ! ! ! Correcting IF 3. ! A total of 24 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.02 FD 1.00 HH 1.06 HN 1.04 ! KB 1.00* KK 1.00* KP 0.99 LA 0.96 ! MK 1.00* NL 0.98 NY 1.06 OV 1.01 ! PT 1.02 SC 0.99 TS 1.00* ! ! A total of 138 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.99 FD 0.99 HH 1.00* HN 1.00* ! KB 0.97 KK 0.96 KP 1.00 LA 0.94 ! MK 1.04 NL 0.99 NY 1.00* OV 1.00 ! PT 0.99 SC 1.00* TS 0.94 ! ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* FD 0.00* HH 0.00* HN 0.00* ! KB 0.00* KK 0.00* KP 0.00* LA 0.00* ! MK 0.00* NL 0.00* NY 0.00* OV 0.00* ! PT 0.00* SC 0.00* TS 0.00* ! ! ! Correcting IF 4. ! A total of 12 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.09 FD 1.00 HH 1.00* HN 1.04 ! KB 1.00* KK 1.00* KP 0.99 LA 1.06 ! MK 1.00* NL 1.00 NY 1.00 OV 1.00 ! PT 1.03 SC 0.98 TS 1.00* ! ! A total of 3 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.05 FD 1.00 HH 1.00* HN 1.00* ! KB 0.98 KK 0.97 KP 1.01 LA 1.01 ! MK 1.01 NL 1.03 NY 1.00* OV 0.98 ! PT 0.97 SC 1.00* TS 0.93 ! ! Telescope amplitude corrections in sub-array 3: ! BR 0.00* FD 0.00* HH 0.00* HN 0.00* ! KB 0.00* KK 0.00* KP 0.00* LA 0.00* ! MK 0.00* NL 0.00* NY 0.00* OV 0.00* ! PT 0.00* SC 0.00* TS 0.00* ! ! ! Fit before self-cal, rms=0.148249Jy sigma=0.001321 ! Fit after self-cal, rms=0.150292Jy sigma=0.001311 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.7385 mas, bmaj=1.684 mas, bpa=-5.164 degrees ! Estimated noise=401.752 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 = 0.000686126 Jy ! Component: 100 - total flux cleaned = 0.000939405 Jy ! Component: 150 - total flux cleaned = 0.00108187 Jy ! Component: 200 - total flux cleaned = 0.00127182 Jy ! Total flux subtracted in 200 components = 0.00127182 Jy ! Clean residual min=-0.003300 max=0.003009 Jy/beam ! Clean residual mean=-0.000035 rms=0.000825 Jy/beam ! Combined flux in latest and established models = 0.502616 Jy ! Performing phase self-cal ! Adding 15 model components to the UV plane model. ! The established model now contains 73 components and 0.502616 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.150185Jy sigma=0.001310 ! Fit after self-cal, rms=0.150218Jy sigma=0.001310 ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 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=0.150218Jy sigma=0.001310 ! Fit after self-cal, rms=0.150374Jy sigma=0.001309 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.7383 mas, bmaj=1.685 mas, bpa=-5.111 degrees ! Estimated noise=402.12 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000590283 Jy ! Component: 100 - total flux cleaned = 0.000763439 Jy ! Component: 150 - total flux cleaned = 0.0008135 Jy ! Component: 200 - total flux cleaned = 0.000861563 Jy ! Total flux subtracted in 200 components = 0.000861563 Jy ! Clean residual min=-0.002933 max=0.002935 Jy/beam ! Clean residual mean=-0.000036 rms=0.000747 Jy/beam ! Combined flux in latest and established models = 0.503477 Jy selfcal ! Performing phase self-cal ! Adding 15 model components to the UV plane model. ! The established model now contains 79 components and 0.503477 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.150321Jy sigma=0.001308 ! Fit after self-cal, rms=0.150313Jy sigma=0.001308 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 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 = 9.08876e-05 Jy ! Component: 100 - total flux cleaned = 0.000134376 Jy ! Component: 150 - total flux cleaned = 0.000134886 Jy ! Component: 200 - total flux cleaned = 0.000169787 Jy ! Total flux subtracted in 200 components = 0.000169787 Jy ! Clean residual min=-0.002938 max=0.002867 Jy/beam ! Clean residual mean=-0.000040 rms=0.000738 Jy/beam ! Combined flux in latest and established models = 0.503647 Jy ! Performing phase self-cal ! Adding 20 model components to the UV plane model. ! The established model now contains 86 components and 0.503647 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.150285Jy sigma=0.001308 ! Fit after self-cal, rms=0.150278Jy sigma=0.001308 ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 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=0.150278Jy sigma=0.001308 ! Fit after self-cal, rms=0.147422Jy sigma=0.001306 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.7382 mas, bmaj=1.682 mas, bpa=-5.024 degrees ! Estimated noise=401.769 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00056756 Jy ! Component: 100 - total flux cleaned = 0.000484254 Jy ! Component: 150 - total flux cleaned = 0.000380308 Jy ! Component: 200 - total flux cleaned = 0.000320324 Jy ! Total flux subtracted in 200 components = 0.000320324 Jy ! Clean residual min=-0.002026 max=0.002230 Jy/beam ! Clean residual mean=0.000051 rms=0.000557 Jy/beam ! Combined flux in latest and established models = 0.503967 Jy selfcal ! Performing phase self-cal ! Adding 14 model components to the UV plane model. ! The established model now contains 96 components and 0.503967 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.147401Jy sigma=0.001305 ! Fit after self-cal, rms=0.147376Jy sigma=0.001305 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 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 = 0.000134209 Jy ! Component: 100 - total flux cleaned = 4.65488e-05 Jy ! Component: 150 - total flux cleaned = 1.89874e-05 Jy ! Component: 200 - total flux cleaned = 1.78016e-05 Jy ! Total flux subtracted in 200 components = 1.78016e-05 Jy ! Clean residual min=-0.002021 max=0.002228 Jy/beam ! Clean residual mean=0.000049 rms=0.000549 Jy/beam ! Combined flux in latest and established models = 0.503985 Jy ! Performing phase self-cal ! Adding 22 model components to the UV plane model. ! The established model now contains 105 components and 0.503985 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.147363Jy sigma=0.001305 ! Fit after self-cal, rms=0.147360Jy sigma=0.001305 ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 70 mega-wavelengths. win_mult = win_mult * 1.2 selfcal true, true, soltime2 ! Performing amp+phase self-cal over 20 minute time intervals ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.147360Jy sigma=0.001305 ! Fit after self-cal, rms=0.147293Jy sigma=0.001305 clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=2.817 mas, bmaj=3.267 mas, bpa=9.292 degrees ! Estimated noise=481.515 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000251806 Jy ! Component: 100 - total flux cleaned = 0.000311212 Jy ! Component: 150 - total flux cleaned = 0.000340882 Jy ! Component: 200 - total flux cleaned = 0.000365198 Jy ! Total flux subtracted in 200 components = 0.000365198 Jy ! Clean residual min=-0.001723 max=0.002342 Jy/beam ! Clean residual mean=0.000113 rms=0.000620 Jy/beam ! Combined flux in latest and established models = 0.50435 Jy selfcal ! Performing phase self-cal ! Adding 11 model components to the UV plane model. ! The established model now contains 110 components and 0.50435 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.147292Jy sigma=0.001305 ! Fit after self-cal, rms=0.147288Jy sigma=0.001305 flux_cutoff = imstat(rms) * dynam ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 4.08141e-05 Jy ! Component: 100 - total flux cleaned = 3.91028e-06 Jy ! Component: 150 - total flux cleaned = 1.47457e-05 Jy ! Component: 200 - total flux cleaned = 1.49269e-05 Jy ! Total flux subtracted in 200 components = 1.49269e-05 Jy ! Clean residual min=-0.001754 max=0.002366 Jy/beam ! Clean residual mean=0.000112 rms=0.000619 Jy/beam ! Combined flux in latest and established models = 0.504365 Jy ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 112 components and 0.504365 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.147288Jy sigma=0.001305 ! Fit after self-cal, rms=0.147287Jy sigma=0.001305 ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 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 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.7383 mas, bmaj=1.682 mas, bpa=-4.991 degrees ! Estimated noise=401.751 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.7383 x 1.682 at -4.991 degrees (North through East) ! Clean map min=-0.003576 max=0.35971 Jy/beam if(peak(flux) > thresh) selfcal true, true clean clean_niter,clean_gain selfcal flux_cutoff = imstat(rms) * dynam repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal new_peak = peak(flux) until(new_peak<=flux_cutoff) selfcal true, true end if print "************** CLEARING MODEL AND STARTING OVER **********" ! ************** CLEARING MODEL AND STARTING OVER ********** clrmod true ! clrmod: Cleared the established and tentative models. uvw 2,-1 ! Uniform weighting binwidth: 2 (pixels). ! Gridding weights will be scaled by errors raised to the power -1. ! Radial weighting is not currently selected. clean clean_niter,clean_gain ! Inverting map and beam ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.624 mas, bmaj=1.209 mas, bpa=-5.862 degrees ! Estimated noise=738.373 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.286231 Jy ! Component: 100 - total flux cleaned = 0.369939 Jy ! Component: 150 - total flux cleaned = 0.412684 Jy ! Component: 200 - total flux cleaned = 0.4378 Jy ! Total flux subtracted in 200 components = 0.4378 Jy ! Clean residual min=-0.005404 max=0.013143 Jy/beam ! Clean residual mean=0.000497 rms=0.002241 Jy/beam ! Combined flux in latest and established models = 0.4378 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 18 model components to the UV plane model. ! The established model now contains 18 components and 0.4378 Jy ! Inverting map and beam ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.7383 mas, bmaj=1.682 mas, bpa=-4.991 degrees ! Estimated noise=401.751 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 = 0.0255238 Jy ! Component: 100 - total flux cleaned = 0.0399008 Jy ! Component: 150 - total flux cleaned = 0.0487533 Jy ! Component: 200 - total flux cleaned = 0.0544342 Jy ! Total flux subtracted in 200 components = 0.0544342 Jy ! Clean residual min=-0.002181 max=0.004104 Jy/beam ! Clean residual mean=0.000358 rms=0.000907 Jy/beam ! Combined flux in latest and established models = 0.492235 Jy ! Adding 43 model components to the UV plane model. ! The established model now contains 54 components and 0.492235 Jy ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Added new window around map position (-5, -0.4). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00420865 Jy ! Component: 100 - total flux cleaned = 0.00702018 Jy ! Component: 150 - total flux cleaned = 0.00904054 Jy ! Component: 200 - total flux cleaned = 0.0104132 Jy ! Total flux subtracted in 200 components = 0.0104132 Jy ! Clean residual min=-0.001904 max=0.002229 Jy/beam ! Clean residual mean=0.000103 rms=0.000554 Jy/beam ! Combined flux in latest and established models = 0.502648 Jy ! Adding 32 model components to the UV plane model. ! The established model now contains 78 components and 0.502648 Jy ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 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 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=2.817 mas, bmaj=3.267 mas, bpa=9.292 degrees ! Estimated noise=481.515 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0019028 Jy ! Component: 100 - total flux cleaned = 0.00249676 Jy ! Component: 150 - total flux cleaned = 0.00281878 Jy ! Component: 200 - total flux cleaned = 0.0029966 Jy ! Total flux subtracted in 200 components = 0.0029966 Jy ! Clean residual min=-0.001621 max=0.001566 Jy/beam ! Clean residual mean=0.000055 rms=0.000545 Jy/beam ! Combined flux in latest and established models = 0.505645 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 = 0.000153646 Jy ! Component: 100 - total flux cleaned = 0.000198996 Jy ! Component: 150 - total flux cleaned = 0.000240285 Jy ! Component: 200 - total flux cleaned = 0.000240256 Jy ! Total flux subtracted in 200 components = 0.000240256 Jy ! Clean residual min=-0.001593 max=0.001581 Jy/beam ! Clean residual mean=0.000044 rms=0.000536 Jy/beam ! Combined flux in latest and established models = 0.505885 Jy ! Adding 27 model components to the UV plane model. ! The established model now contains 99 components and 0.505885 Jy ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! Estimated beam: bmin=0.7383 mas, bmaj=1.682 mas, bpa=-4.991 degrees ! Estimated noise=401.751 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000378206 Jy ! Component: 100 - total flux cleaned = -0.000377483 Jy ! Component: 150 - total flux cleaned = -0.000440046 Jy ! Component: 200 - total flux cleaned = -0.000469054 Jy ! Total flux subtracted in 200 components = -0.000469054 Jy ! Clean residual min=-0.001846 max=0.001959 Jy/beam ! Clean residual mean=0.000035 rms=0.000509 Jy/beam ! Combined flux in latest and established models = 0.505416 Jy selfcal ! Performing phase self-cal ! Adding 15 model components to the UV plane model. ! The established model now contains 108 components and 0.505416 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.147303Jy sigma=0.001307 ! Fit after self-cal, rms=0.147287Jy sigma=0.001307 wmodel J2257+0743_X_2010_10_13_pus_map.mod ! Writing 108 model components to file: J2257+0743_X_2010_10_13_pus_map.mod wobs J2257+0743_X_2010_10_13_pus_uvs.fits ! Writing UV FITS file: J2257+0743_X_2010_10_13_pus_uvs.fits wwins J2257+0743_X_2010_10_13_pus_map.win ! wwins: Wrote 5 windows to J2257+0743_X_2010_10_13_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 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! clean: niter=1024 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = 8.64664e-05 Jy ! Component: 100 - total flux cleaned = -0.000190706 Jy ! Component: 150 - total flux cleaned = -0.000307567 Jy ! Component: 200 - total flux cleaned = -0.000391439 Jy ! Component: 250 - total flux cleaned = -0.000445519 Jy ! Component: 300 - total flux cleaned = -0.000471973 Jy ! Component: 350 - total flux cleaned = -0.000497239 Jy ! Component: 400 - total flux cleaned = -0.000472165 Jy ! Component: 450 - total flux cleaned = -0.000423671 Jy ! Component: 500 - total flux cleaned = -0.000400229 Jy ! Component: 550 - total flux cleaned = -0.000307826 Jy ! Component: 600 - total flux cleaned = -0.000262519 Jy ! Component: 650 - total flux cleaned = -0.000218033 Jy ! Component: 700 - total flux cleaned = -0.000196421 Jy ! Component: 750 - total flux cleaned = -0.000153607 Jy ! Component: 800 - total flux cleaned = -0.000132503 Jy ! Component: 850 - total flux cleaned = -9.09306e-05 Jy ! Component: 900 - total flux cleaned = -7.04504e-05 Jy ! Component: 950 - total flux cleaned = -5.00961e-05 Jy ! Component: 1000 - total flux cleaned = -1.00045e-05 Jy ! Total flux subtracted in 1024 components = 9.71869e-06 Jy ! Clean residual min=-0.001140 max=0.001004 Jy/beam ! Clean residual mean=0.000022 rms=0.000378 Jy/beam ! Combined flux in latest and established models = 0.505425 Jy keep ! Adding 62 model components to the UV plane model. ! The established model now contains 170 components and 0.505425 Jy ![Exited script file: muppet] wmap "J2257+0743_X_2010_10_13_pus\_map.fits" ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.7383 x 1.682 at -4.991 degrees (North through East) ! Clean map min=-0.0014596 max=0.35968 Jy/beam ! Writing clean map to FITS file: J2257+0743_X_2010_10_13_pus_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.359679 invert ! Inverting map ! Your choice of large map pixels excluded 11.9% of the data. ! The x-axis pixel size should ideally be below 0.1627 milli-arcsec ! The y-axis pixel size should ideally be below 0.1841 milli-arcsec float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000377021 device "J2257+0743_X_2010_10_13_pus\_map.eps/VPS" ! Attempting to open device: 'J2257+0743_X_2010_10_13_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.314464 0.314464 0.628929 1.25786 2.51572 5.03143 10.0629 20.1257 40.2514 80.5029 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0011 print "peak=",int(1000*peak_flux)/1000 ! peak= 0.359 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.7383 x 1.682 at -4.991 degrees (North through East) ! Clean map min=-0.0014596 max=0.35968 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J2257+0743_X_2010_10_13_pus\_map.gif/vgif" ! Attempting to open device: 'J2257+0743_X_2010_10_13_pus_map.gif/vgif' mapplot cln