! Started logfile: J1957-3845_X_2007_12_05_pus_uvs.log on Wed Sep 8 21:27:27 2010 obs J1957-3845_X_2007_12_05_pus_uva.fits ! Reading UV FITS file: J1957-3845_X_2007_12_05_pus_uva.fits ! AN table 1: 149 integrations on 136 of 136 possible baselines. ! AN table 2: 46 integrations on 136 of 136 possible baselines. ! AN table 3: 122 integrations on 136 of 136 possible baselines. ! Apparent sampling: 0.052468 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 8.40997e+09 8e+06 1 8e+06 ! 02 2 8.47997e+09 8e+06 1 8e+06 ! 03 3 8.79497e+09 8e+06 1 8e+06 ! 04 4 8.89997e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 1501 lines of history. ! ! Reading 9048 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 = 0.2 print "taper_size =",taper_size ! taper_size = 70 integer clean_niter clean_niter = 100 float clean_gain clean_gain = 0.03 float dynam dynam = 6.0 float soltime1 soltime1 = 120 float soltime2 soltime2 = 20 float thresh thresh = 0.5 float win_mult win_mult = 1.8 float time_av time_av = 16 float old_peak float new_peak float flux_cutoff mapsize field_size, field_cell ! Map grid = 512x512 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 2102 telescope corrections were flagged in sub-array 1. ! A total of 723 telescope corrections were flagged in sub-array 2. ! A total of 1471 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 2. ! A total of 2102 telescope corrections were flagged in sub-array 1. ! A total of 723 telescope corrections were flagged in sub-array 2. ! A total of 1471 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 3. ! A total of 2102 telescope corrections were flagged in sub-array 1. ! A total of 723 telescope corrections were flagged in sub-array 2. ! A total of 1471 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 4. ! A total of 2102 telescope corrections were flagged in sub-array 1. ! A total of 723 telescope corrections were flagged in sub-array 2. ! A total of 1471 telescope corrections were flagged in sub-array 3. ! ! Fit before self-cal, rms=1.350470Jy sigma=0.011392 ! Fit after self-cal, rms=1.029137Jy sigma=0.008626 ! 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=1.098 mas, bmaj=5.565 mas, bpa=-17.38 degrees ! Estimated noise=2234.7 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 = 1.46198 Jy ! Component: 100 - total flux cleaned = 1.86469 Jy ! Total flux subtracted in 100 components = 1.86469 Jy ! Clean residual min=-0.061269 max=0.160114 Jy/beam ! Clean residual mean=0.002131 rms=0.024953 Jy/beam ! Combined flux in latest and established models = 1.86469 Jy ! Performing phase self-cal ! Adding 16 model components to the UV plane model. ! The established model now contains 16 components and 1.86469 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.317463Jy sigma=0.002607 ! Fit after self-cal, rms=0.317395Jy sigma=0.002606 ! Inverting map ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.16139 Jy ! Component: 100 - total flux cleaned = 0.23852 Jy ! Total flux subtracted in 100 components = 0.23852 Jy ! Clean residual min=-0.039967 max=0.039729 Jy/beam ! Clean residual mean=0.000674 rms=0.010961 Jy/beam ! Combined flux in latest and established models = 2.10321 Jy ! Performing phase self-cal ! Adding 38 model components to the UV plane model. ! The established model now contains 48 components and 2.10321 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.211089Jy sigma=0.001696 ! Fit after self-cal, rms=0.210968Jy sigma=0.001694 ! 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=2.28 mas, bmaj=7.76 mas, bpa=-14.63 degrees ! Estimated noise=932.124 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 = 0.0505856 Jy ! Component: 100 - total flux cleaned = 0.074299 Jy ! Component: 150 - total flux cleaned = 0.0847352 Jy ! Component: 200 - total flux cleaned = 0.0850566 Jy ! Total flux subtracted in 200 components = 0.0850566 Jy ! Clean residual min=-0.049403 max=0.045408 Jy/beam ! Clean residual mean=0.001370 rms=0.016168 Jy/beam ! Combined flux in latest and established models = 2.18827 Jy ! Performing phase self-cal ! Adding 22 model components to the UV plane model. ! The established model now contains 70 components and 2.18827 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.199245Jy sigma=0.001607 ! Fit after self-cal, rms=0.199238Jy sigma=0.001607 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.01 HH 1.00* HN 1.00* ! KB 1.00* KP 0.98 LA 0.98 MK 0.99 ! NL 1.00* NY 1.00* ON 1.00* OV 0.99 ! 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 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 0.99 HH 1.00* HN 1.00* ! KB 1.00* KP 0.98 LA 1.02 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 0.98 ! PT 0.98 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.99 HH 1.00* HN 1.00* ! KB 1.00* KP 0.94 LA 0.99 MK 1.00* ! NL 1.06 NY 1.00* ON 1.00* OV 1.00* ! PT 1.04 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Correcting IF 2. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.00 HH 1.00* HN 1.00* ! KB 1.00* KP 0.94 LA 0.97 MK 0.99 ! NL 1.00* NY 1.00* ON 1.00* OV 0.97 ! PT 1.04 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 21 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.00 HH 1.00* HN 1.00* ! KB 1.00* KP 0.94 LA 1.02 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 0.97 ! PT 1.03 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.99 HH 1.00* HN 1.00* ! KB 1.00* KP 0.89 LA 0.97 MK 1.00* ! NL 1.03 NY 1.00* ON 1.00* OV 1.00* ! PT 1.09 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.01 HH 1.00* HN 1.00* ! KB 1.00* KP 0.98 LA 1.00 MK 1.00 ! NL 1.00* NY 1.00* ON 1.00* OV 1.02 ! PT 1.06 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 21 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.02 HH 1.00* HN 1.00* ! KB 1.00* KP 0.98 LA 1.05 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 1.02 ! PT 1.06 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.99 HH 1.00* HN 1.00* ! KB 1.00* KP 0.93 LA 1.01 MK 1.00* ! NL 1.02 NY 1.00* ON 1.00* OV 1.00* ! PT 1.12 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Correcting IF 4. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.01 HH 1.00* HN 1.00* ! KB 1.00* KP 0.98 LA 0.98 MK 1.03 ! NL 1.00* NY 1.00* ON 1.00* OV 1.03 ! PT 1.04 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! A total of 21 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00* FD 1.01 HH 1.00* HN 1.00* ! KB 1.00* KP 0.98 LA 1.02 MK 1.00* ! NL 1.00* NY 1.00* ON 1.00* OV 1.01 ! PT 1.06 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 1.00 HH 1.00* HN 1.00* ! KB 1.00* KP 0.93 LA 1.00 MK 1.00* ! NL 1.03 NY 1.00* ON 1.00* OV 1.00* ! PT 1.10 SV 1.00* TS 1.00* WZ 1.00* ! ZC 1.00* ! ! ! Fit before self-cal, rms=0.199238Jy sigma=0.001607 ! Fit after self-cal, rms=0.164310Jy sigma=0.001289 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.278 mas, bmaj=7.814 mas, bpa=-14.77 degrees ! Estimated noise=937.652 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 = 0.00248699 Jy ! Component: 100 - total flux cleaned = 0.00325036 Jy ! Component: 150 - total flux cleaned = 0.00376599 Jy ! Component: 200 - total flux cleaned = 0.00407804 Jy ! Total flux subtracted in 200 components = 0.00407804 Jy ! Clean residual min=-0.011628 max=0.009676 Jy/beam ! Clean residual mean=-0.000441 rms=0.003725 Jy/beam ! Combined flux in latest and established models = 2.19235 Jy ! Performing phase self-cal ! Adding 14 model components to the UV plane model. ! The established model now contains 81 components and 2.19235 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.163819Jy sigma=0.001287 ! Fit after self-cal, rms=0.163852Jy sigma=0.001287 ! 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=0.163852Jy sigma=0.001287 ! Fit after self-cal, rms=0.164318Jy sigma=0.001287 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=2.279 mas, bmaj=7.81 mas, bpa=-14.75 degrees ! Estimated noise=938.748 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00211441 Jy ! Component: 100 - total flux cleaned = 0.00245277 Jy ! Component: 150 - total flux cleaned = 0.00259581 Jy ! Component: 200 - total flux cleaned = 0.00273343 Jy ! Total flux subtracted in 200 components = 0.00273343 Jy ! Clean residual min=-0.010915 max=0.009282 Jy/beam ! Clean residual mean=-0.000428 rms=0.003569 Jy/beam ! Combined flux in latest and established models = 2.19508 Jy selfcal ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 84 components and 2.19508 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.163924Jy sigma=0.001285 ! Fit after self-cal, rms=0.163921Jy sigma=0.001285 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 = 0.000417563 Jy ! Component: 100 - total flux cleaned = 0.000419722 Jy ! Component: 150 - total flux cleaned = 0.000423521 Jy ! Component: 200 - total flux cleaned = 0.000530248 Jy ! Total flux subtracted in 200 components = 0.000530248 Jy ! Clean residual min=-0.010427 max=0.008873 Jy/beam ! Clean residual mean=-0.000430 rms=0.003477 Jy/beam ! Combined flux in latest and established models = 2.19561 Jy ! Performing phase self-cal ! Adding 14 model components to the UV plane model. ! The established model now contains 89 components and 2.19561 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.163728Jy sigma=0.001284 ! Fit after self-cal, rms=0.163726Jy sigma=0.001284 ! 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=0.163726Jy sigma=0.001284 ! Fit after self-cal, rms=0.163130Jy sigma=0.001270 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=2.281 mas, bmaj=7.809 mas, bpa=-14.73 degrees ! Estimated noise=940.497 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00182083 Jy ! Component: 100 - total flux cleaned = 0.00182552 Jy ! Component: 150 - total flux cleaned = 0.0016933 Jy ! Component: 200 - total flux cleaned = 0.00169585 Jy ! Total flux subtracted in 200 components = 0.00169585 Jy ! Clean residual min=-0.010569 max=0.009211 Jy/beam ! Clean residual mean=-0.000219 rms=0.003371 Jy/beam ! Combined flux in latest and established models = 2.19731 Jy selfcal ! Performing phase self-cal ! Adding 13 model components to the UV plane model. ! The established model now contains 93 components and 2.19731 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.162799Jy sigma=0.001269 ! Fit after self-cal, rms=0.162801Jy sigma=0.001269 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 = 0.000275566 Jy ! Component: 100 - total flux cleaned = 0.000277557 Jy ! Component: 150 - total flux cleaned = 0.000273097 Jy ! Component: 200 - total flux cleaned = 0.000273448 Jy ! Total flux subtracted in 200 components = 0.000273448 Jy ! Clean residual min=-0.010152 max=0.009010 Jy/beam ! Clean residual mean=-0.000220 rms=0.003292 Jy/beam ! Combined flux in latest and established models = 2.19758 Jy ! Performing phase self-cal ! Adding 10 model components to the UV plane model. ! The established model now contains 94 components and 2.19758 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.162641Jy sigma=0.001268 ! Fit after self-cal, rms=0.162639Jy sigma=0.001268 ! Inverting map 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=0.162639Jy sigma=0.001268 ! Fit after self-cal, rms=0.163303Jy sigma=0.001268 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=3.324 mas, bmaj=8.711 mas, bpa=-7.991 degrees ! Estimated noise=955.977 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00109466 Jy ! Component: 100 - total flux cleaned = 0.000923016 Jy ! Component: 150 - total flux cleaned = 0.000766298 Jy ! Component: 200 - total flux cleaned = 0.000623574 Jy ! Total flux subtracted in 200 components = 0.000623573 Jy ! Clean residual min=-0.009829 max=0.008651 Jy/beam ! Clean residual mean=-0.000253 rms=0.003142 Jy/beam ! Combined flux in latest and established models = 2.1982 Jy selfcal ! Performing phase self-cal ! Adding 11 model components to the UV plane model. ! The established model now contains 101 components and 2.1982 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.163093Jy sigma=0.001267 ! Fit after self-cal, rms=0.163094Jy sigma=0.001267 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 = -5.94572e-05 Jy ! Component: 100 - total flux cleaned = -0.000184766 Jy ! Component: 150 - total flux cleaned = -0.000303507 Jy ! Component: 200 - total flux cleaned = -0.00035975 Jy ! Total flux subtracted in 200 components = -0.00035975 Jy ! Clean residual min=-0.009852 max=0.008621 Jy/beam ! Clean residual mean=-0.000254 rms=0.003104 Jy/beam ! Combined flux in latest and established models = 2.19784 Jy ! Performing phase self-cal ! Adding 8 model components to the UV plane model. ! The established model now contains 104 components and 2.19784 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.163017Jy sigma=0.001267 ! Fit after self-cal, rms=0.163016Jy sigma=0.001267 ! 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=2.284 mas, bmaj=7.808 mas, bpa=-14.7 degrees ! Estimated noise=942.159 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.284 x 7.808 at -14.7 degrees (North through East) ! Clean map min=-0.0098798 max=1.8843 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=0.163016Jy sigma=0.001267 ! Fit after self-cal, rms=0.122257Jy sigma=0.000945 ! Inverting map and beam ! Estimated beam: bmin=2.283 mas, bmaj=7.81 mas, bpa=-14.72 degrees ! Estimated noise=941.924 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00025755 Jy ! Component: 100 - total flux cleaned = -0.000398779 Jy ! Component: 150 - total flux cleaned = -0.000467143 Jy ! Component: 200 - total flux cleaned = -0.000602254 Jy ! Total flux subtracted in 200 components = -0.000602254 Jy ! Clean residual min=-0.009367 max=0.008650 Jy/beam ! Clean residual mean=-0.000189 rms=0.003116 Jy/beam ! Combined flux in latest and established models = 2.19724 Jy ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 106 components and 2.19724 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.122176Jy sigma=0.000944 ! Fit after self-cal, rms=0.122176Jy sigma=0.000944 ! Inverting map ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 8.52557e-05 Jy ! Component: 100 - total flux cleaned = -4.77896e-05 Jy ! Component: 150 - total flux cleaned = -0.000168806 Jy ! Component: 200 - total flux cleaned = -0.00022991 Jy ! Total flux subtracted in 200 components = -0.00022991 Jy ! Clean residual min=-0.009298 max=0.008617 Jy/beam ! Clean residual mean=-0.000190 rms=0.003086 Jy/beam ! Combined flux in latest and established models = 2.19701 Jy ! Performing phase self-cal ! Adding 11 model components to the UV plane model. ! The established model now contains 109 components and 2.19701 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.122115Jy sigma=0.000944 ! Fit after self-cal, rms=0.122115Jy sigma=0.000944 ! Inverting map ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.122115Jy sigma=0.000944 ! Fit after self-cal, rms=0.122164Jy sigma=0.000944 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=1.102 mas, bmaj=5.569 mas, bpa=-17.36 degrees ! Estimated noise=2245 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 1.4606 Jy ! Component: 100 - total flux cleaned = 1.8568 Jy ! Component: 150 - total flux cleaned = 2.01185 Jy ! Component: 200 - total flux cleaned = 2.084 Jy ! Total flux subtracted in 200 components = 2.084 Jy ! Clean residual min=-0.020385 max=0.037298 Jy/beam ! Clean residual mean=0.000818 rms=0.007451 Jy/beam ! Combined flux in latest and established models = 2.084 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 42 model components to the UV plane model. ! The established model now contains 42 components and 2.08399 Jy ! Inverting map and beam ! Estimated beam: bmin=2.284 mas, bmaj=7.811 mas, bpa=-14.72 degrees ! Estimated noise=942.13 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 = 0.0571471 Jy ! Component: 100 - total flux cleaned = 0.0832841 Jy ! Component: 150 - total flux cleaned = 0.0966263 Jy ! Component: 200 - total flux cleaned = 0.103714 Jy ! Total flux subtracted in 200 components = 0.103714 Jy ! Clean residual min=-0.011755 max=0.011692 Jy/beam ! Clean residual mean=-0.000200 rms=0.003691 Jy/beam ! Combined flux in latest and established models = 2.18771 Jy ! Adding 42 model components to the UV plane model. ! The established model now contains 84 components and 2.18771 Jy ! Inverting map 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 ! Estimated beam: bmin=3.325 mas, bmaj=8.715 mas, bpa=-8.003 degrees ! Estimated noise=955.863 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.002333 Jy ! Component: 100 - total flux cleaned = 0.00285459 Jy ! Component: 150 - total flux cleaned = 0.0034595 Jy ! Component: 200 - total flux cleaned = 0.00391166 Jy ! Total flux subtracted in 200 components = 0.00391166 Jy ! Clean residual min=-0.010318 max=0.009514 Jy/beam ! Clean residual mean=-0.000220 rms=0.003313 Jy/beam ! Combined flux in latest and established models = 2.19162 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 = 0.000526455 Jy ! Component: 100 - total flux cleaned = 0.00101664 Jy ! Component: 150 - total flux cleaned = 0.00129712 Jy ! Component: 200 - total flux cleaned = 0.00147699 Jy ! Total flux subtracted in 200 components = 0.00147699 Jy ! Clean residual min=-0.010051 max=0.009151 Jy/beam ! Clean residual mean=-0.000216 rms=0.003259 Jy/beam ! Combined flux in latest and established models = 2.1931 Jy ! Adding 18 model components to the UV plane model. ! The established model now contains 96 components and 2.1931 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=2.284 mas, bmaj=7.811 mas, bpa=-14.72 degrees ! Estimated noise=942.13 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -4.2989e-05 Jy ! Component: 100 - total flux cleaned = 0.0004542 Jy ! Component: 150 - total flux cleaned = 0.000812191 Jy ! Component: 200 - total flux cleaned = 0.00114826 Jy ! Total flux subtracted in 200 components = 0.00114826 Jy ! Clean residual min=-0.010333 max=0.009686 Jy/beam ! Clean residual mean=-0.000184 rms=0.003368 Jy/beam ! Combined flux in latest and established models = 2.19425 Jy selfcal ! Performing phase self-cal ! Adding 11 model components to the UV plane model. ! The established model now contains 102 components and 2.19425 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.122876Jy sigma=0.000948 ! Fit after self-cal, rms=0.122850Jy sigma=0.000948 wmodel J1957-3845_X_2007_12_05_pus_map.mod ! Writing 102 model components to file: J1957-3845_X_2007_12_05_pus_map.mod wobs J1957-3845_X_2007_12_05_pus_uvs.fits ! Writing UV FITS file: J1957-3845_X_2007_12_05_pus_uvs.fits wwins J1957-3845_X_2007_12_05_pus_map.win ! wwins: Wrote 1 windows to J1957-3845_X_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 = -0.00297838 Jy ! Component: 100 - total flux cleaned = -0.00441627 Jy ! Component: 150 - total flux cleaned = -0.00485208 Jy ! Component: 200 - total flux cleaned = -0.00524593 Jy ! Component: 250 - total flux cleaned = -0.00537301 Jy ! Component: 300 - total flux cleaned = -0.00526581 Jy ! Component: 350 - total flux cleaned = -0.00516563 Jy ! Component: 400 - total flux cleaned = -0.0051646 Jy ! Component: 450 - total flux cleaned = -0.00543482 Jy ! Component: 500 - total flux cleaned = -0.00585726 Jy ! Component: 550 - total flux cleaned = -0.0060946 Jy ! Component: 600 - total flux cleaned = -0.00631918 Jy ! Component: 650 - total flux cleaned = -0.0066756 Jy ! Component: 700 - total flux cleaned = -0.00694718 Jy ! Component: 750 - total flux cleaned = -0.007271 Jy ! Component: 800 - total flux cleaned = -0.00745639 Jy ! Component: 850 - total flux cleaned = -0.00775595 Jy ! Component: 900 - total flux cleaned = -0.00810097 Jy ! Component: 950 - total flux cleaned = -0.00826863 Jy ! Component: 1000 - total flux cleaned = -0.00832381 Jy ! Component: 1050 - total flux cleaned = -0.00853055 Jy ! Component: 1100 - total flux cleaned = -0.00858169 Jy ! Component: 1150 - total flux cleaned = -0.00887137 Jy ! Component: 1200 - total flux cleaned = -0.00896417 Jy ! Component: 1250 - total flux cleaned = -0.00919008 Jy ! Component: 1300 - total flux cleaned = -0.00923319 Jy ! Component: 1350 - total flux cleaned = -0.00940376 Jy ! Component: 1400 - total flux cleaned = -0.00965286 Jy ! Component: 1450 - total flux cleaned = -0.00989533 Jy ! Component: 1500 - total flux cleaned = -0.0100923 Jy ! Component: 1550 - total flux cleaned = -0.0102455 Jy ! Component: 1600 - total flux cleaned = -0.010357 Jy ! Component: 1650 - total flux cleaned = -0.0104298 Jy ! Component: 1700 - total flux cleaned = -0.010573 Jy ! Component: 1750 - total flux cleaned = -0.0106084 Jy ! Component: 1800 - total flux cleaned = -0.0107118 Jy ! Component: 1850 - total flux cleaned = -0.0107787 Jy ! Component: 1900 - total flux cleaned = -0.010812 Jy ! Component: 1950 - total flux cleaned = -0.0109417 Jy ! Component: 2000 - total flux cleaned = -0.0110045 Jy ! Total flux subtracted in 2048 components = -0.0110356 Jy ! Clean residual min=-0.001593 max=0.002031 Jy/beam ! Clean residual mean=-0.000004 rms=0.000705 Jy/beam ! Combined flux in latest and established models = 2.18321 Jy keep ! Adding 150 model components to the UV plane model. ! The established model now contains 252 components and 2.18321 Jy wmap "J1957-3845_X_2007_12_05_pus\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.284 x 7.811 at -14.72 degrees (North through East) ! Clean map min=-0.0049382 max=1.889 Jy/beam ! Writing clean map to FITS file: J1957-3845_X_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 1.88895 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000698291 device "J1957-3845_X_2007_12_05_pus\_map.eps/VPS" ! Attempting to open device: 'J1957-3845_X_2007_12_05_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.110901 0.110901 0.221803 0.443605 0.88721 1.77442 3.54884 7.09768 14.1954 28.3907 56.7815 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.002 print "peak=",int(1000*peak_flux)/1000 ! peak= 1.888 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.284 x 7.811 at -14.72 degrees (North through East) ! Clean map min=-0.0049382 max=1.889 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1957-3845_X_2007_12_05_pus\_map.gif/vgif" ! Attempting to open device: 'J1957-3845_X_2007_12_05_pus_map.gif/vgif' mapplot cln quit ! Quitting program ! Log file J1957-3845_X_2007_12_05_pus_uvs.log closed on Wed Sep 8 21:27:35 2010