! Started logfile: J0921-2618_X_1998_10_01_pus_uvs.log on Wed Feb 6 12:27:47 2008 obs J0921-2618_X_1998_10_01_pus_uva.fits ! Reading UV FITS file: J0921-2618_X_1998_10_01_pus_uva.fits ! AN table 1: 53 integrations on 136 of 136 possible baselines. ! AN table 2: 212 integrations on 136 of 136 possible baselines. ! Apparent sampling: 0.0863485 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J0921-2618 ! ! 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 8.40798e+09 4e+06 1 4e+06 ! 02 2 8.47798e+09 4e+06 1 4e+06 ! 03 3 8.79298e+09 4e+06 1 4e+06 ! 04 4 8.89798e+09 4e+06 1 4e+06 ! ! Polarization(s): RR ! ! Read 2049 lines of history. ! ! Reading 12448 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 J0921-2618_X_1998_10_01_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 589 telescope corrections were flagged in sub-array 1. ! A total of 2795 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 2. ! A total of 589 telescope corrections were flagged in sub-array 1. ! A total of 2795 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 3. ! A total of 589 telescope corrections were flagged in sub-array 1. ! A total of 2795 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 4. ! A total of 589 telescope corrections were flagged in sub-array 1. ! A total of 2795 telescope corrections were flagged in sub-array 2. ! ! Fit before self-cal, rms=1.140241Jy sigma=0.011953 ! Fit after self-cal, rms=0.355636Jy sigma=0.003534 ! 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=0.8663 mas, bmaj=2.692 mas, bpa=17.82 degrees ! Estimated noise=1032.73 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 = 0.856642 Jy ! Component: 100 - total flux cleaned = 1.05964 Jy ! Total flux subtracted in 100 components = 1.05964 Jy ! Clean residual min=-0.027976 max=0.085894 Jy/beam ! Clean residual mean=0.002791 rms=0.015240 Jy/beam ! Combined flux in latest and established models = 1.05964 Jy ! Performing phase self-cal ! Adding 16 model components to the UV plane model. ! The established model now contains 16 components and 1.05964 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.329945Jy sigma=0.003210 ! Fit after self-cal, rms=0.329816Jy sigma=0.003209 ! 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=1.08 mas, bmaj=3.395 mas, bpa=18.12 degrees ! Estimated noise=647.668 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 = 0.147975 Jy ! Component: 100 - total flux cleaned = 0.213682 Jy ! Component: 150 - total flux cleaned = 0.246109 Jy ! Component: 200 - total flux cleaned = 0.263346 Jy ! Total flux subtracted in 200 components = 0.263346 Jy ! Clean residual min=-0.015771 max=0.026671 Jy/beam ! Clean residual mean=-0.000454 rms=0.005878 Jy/beam ! Combined flux in latest and established models = 1.32299 Jy ! Performing phase self-cal ! Adding 67 model components to the UV plane model. ! The established model now contains 76 components and 1.32299 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.275147Jy sigma=0.002439 ! Fit after self-cal, rms=0.274634Jy sigma=0.002435 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.01 GC 1.00* HN 1.00* ! KK 1.00* KP 0.99 LA 1.07 MK 1.00* ! NL 1.23 NY 1.00* ON 1.00* OV 1.00* ! PT 1.04 SC 1.04 WF 1.02 MC 1.00* ! GN 1.01 ! ! A total of 156 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.96 FD 1.01 GC 1.00* HN 1.00* ! KK 1.00* KP 0.96 LA 1.00 MK 1.00* ! NL 1.01 NY 1.00* ON 1.00* OV 1.03 ! PT 0.99 SC 1.03 WF 1.00* MC 1.00* ! GN 1.00* ! ! ! Correcting IF 2. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.02 GC 1.00* HN 1.00* ! KK 1.00* KP 1.02 LA 1.01 MK 1.00* ! NL 1.27 NY 1.00* ON 1.00* OV 1.00* ! PT 1.03 SC 1.01 WF 1.02 MC 1.00* ! GN 0.99 ! ! A total of 156 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.97 FD 1.02 GC 1.00* HN 1.00* ! KK 1.00* KP 0.97 LA 0.97 MK 1.00* ! NL 1.02 NY 1.00* ON 1.00* OV 1.00 ! PT 1.00 SC 1.01 WF 1.00* MC 1.00* ! GN 1.00* ! ! ! Correcting IF 3. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.97 GC 1.00* HN 1.00* ! KK 1.00* KP 1.02 LA 1.03 MK 1.00* ! NL 1.19 NY 1.00* ON 1.00* OV 1.00* ! PT 1.05 SC 1.03 WF 1.03 MC 1.00* ! GN 1.02 ! ! A total of 156 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.00 FD 0.98 GC 1.00* HN 1.00* ! KK 1.00* KP 1.00 LA 0.96 MK 1.00* ! NL 0.98 NY 1.00* ON 1.00* OV 0.98 ! PT 1.01 SC 1.02 WF 1.00* MC 1.00* ! GN 1.00* ! ! ! Correcting IF 4. ! A total of 6 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 0.97 GC 1.00* HN 1.00* ! KK 1.00* KP 1.02 LA 1.02 MK 1.00* ! NL 1.25 NY 1.00* ON 1.00* OV 1.00* ! PT 1.00 SC 0.97 WF 1.00 MC 1.00* ! GN 0.99 ! ! A total of 156 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.97 FD 0.96 GC 1.00* HN 1.00* ! KK 1.00* KP 0.98 LA 0.98 MK 1.00* ! NL 0.99 NY 1.00* ON 1.00* OV 1.00 ! PT 0.96 SC 0.98 WF 1.00* MC 1.00* ! GN 1.00* ! ! ! Fit before self-cal, rms=0.274634Jy sigma=0.002435 ! Fit after self-cal, rms=0.274932Jy sigma=0.002370 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=1.147 mas, bmaj=3.478 mas, bpa=16.79 degrees ! Estimated noise=660.846 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 = -0.00198449 Jy ! Component: 100 - total flux cleaned = -0.00298196 Jy ! Component: 150 - total flux cleaned = -0.00322631 Jy ! Component: 200 - total flux cleaned = -0.00320282 Jy ! Total flux subtracted in 200 components = -0.00320282 Jy ! Clean residual min=-0.010711 max=0.018965 Jy/beam ! Clean residual mean=0.000098 rms=0.004001 Jy/beam ! Combined flux in latest and established models = 1.31978 Jy ! Performing phase self-cal ! Adding 18 model components to the UV plane model. ! The established model now contains 90 components and 1.31978 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.274149Jy sigma=0.002363 ! Fit after self-cal, rms=0.274347Jy sigma=0.002362 ! Inverting map ! Added new window around map position (-2.2, 1). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0166234 Jy ! Component: 100 - total flux cleaned = 0.0162608 Jy ! Component: 150 - total flux cleaned = 0.0156566 Jy ! Component: 200 - total flux cleaned = 0.0154068 Jy ! Total flux subtracted in 200 components = 0.0154068 Jy ! Clean residual min=-0.011339 max=0.006857 Jy/beam ! Clean residual mean=-0.000405 rms=0.002935 Jy/beam ! Combined flux in latest and established models = 1.33519 Jy ! Performing phase self-cal ! Adding 24 model components to the UV plane model. ! The established model now contains 113 components and 1.33519 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272892Jy sigma=0.002348 ! Fit after self-cal, rms=0.272657Jy sigma=0.002347 ! 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=0.272657Jy sigma=0.002347 ! Fit after self-cal, rms=0.273203Jy sigma=0.002341 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=1.146 mas, bmaj=3.486 mas, bpa=16.84 degrees ! Estimated noise=659.473 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00557305 Jy ! Component: 100 - total flux cleaned = 0.00557463 Jy ! Component: 150 - total flux cleaned = 0.00533821 Jy ! Component: 200 - total flux cleaned = 0.00534145 Jy ! Total flux subtracted in 200 components = 0.00534145 Jy ! Clean residual min=-0.009910 max=0.007137 Jy/beam ! Clean residual mean=-0.000290 rms=0.002382 Jy/beam ! Combined flux in latest and established models = 1.34053 Jy selfcal ! Performing phase self-cal ! Adding 28 model components to the UV plane model. ! The established model now contains 131 components and 1.34053 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272613Jy sigma=0.002336 ! Fit after self-cal, rms=0.272539Jy sigma=0.002336 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 = 0.00173882 Jy ! Component: 100 - total flux cleaned = 0.00207607 Jy ! Component: 150 - total flux cleaned = 0.00193672 Jy ! Component: 200 - total flux cleaned = 0.00194192 Jy ! Total flux subtracted in 200 components = 0.00194192 Jy ! Clean residual min=-0.009965 max=0.006910 Jy/beam ! Clean residual mean=-0.000357 rms=0.002267 Jy/beam ! Combined flux in latest and established models = 1.34247 Jy ! Performing phase self-cal ! Adding 28 model components to the UV plane model. ! The established model now contains 140 components and 1.34247 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272306Jy sigma=0.002334 ! Fit after self-cal, rms=0.272261Jy sigma=0.002334 ! 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=0.272261Jy sigma=0.002334 ! Fit after self-cal, rms=0.272942Jy sigma=0.002333 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=1.147 mas, bmaj=3.492 mas, bpa=16.87 degrees ! Estimated noise=658.781 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00119454 Jy ! Component: 100 - total flux cleaned = 0.00151981 Jy ! Component: 150 - total flux cleaned = 0.0015112 Jy ! Component: 200 - total flux cleaned = 0.00139287 Jy ! Total flux subtracted in 200 components = 0.00139287 Jy ! Clean residual min=-0.008036 max=0.006820 Jy/beam ! Clean residual mean=-0.000185 rms=0.002066 Jy/beam ! Combined flux in latest and established models = 1.34387 Jy selfcal ! Performing phase self-cal ! Adding 23 model components to the UV plane model. ! The established model now contains 146 components and 1.34387 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272694Jy sigma=0.002331 ! Fit after self-cal, rms=0.272666Jy sigma=0.002331 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 = 0.00116025 Jy ! Component: 100 - total flux cleaned = 0.00116851 Jy ! Component: 150 - total flux cleaned = 0.00117074 Jy ! Component: 200 - total flux cleaned = 0.00117052 Jy ! Total flux subtracted in 200 components = 0.00117052 Jy ! Clean residual min=-0.008127 max=0.006693 Jy/beam ! Clean residual mean=-0.000226 rms=0.002019 Jy/beam ! Combined flux in latest and established models = 1.34504 Jy ! Performing phase self-cal ! Adding 25 model components to the UV plane model. ! The established model now contains 152 components and 1.34504 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272547Jy sigma=0.002330 ! Fit after self-cal, rms=0.272524Jy sigma=0.002330 ! 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=0.272524Jy sigma=0.002330 ! Fit after self-cal, rms=0.273106Jy sigma=0.002330 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=2.604 mas, bmaj=5.611 mas, bpa=0.5181 degrees ! Estimated noise=728.485 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -9.75425e-05 Jy ! Component: 100 - total flux cleaned = -0.000216641 Jy ! Component: 150 - total flux cleaned = -0.000381434 Jy ! Component: 200 - total flux cleaned = -0.00052827 Jy ! Total flux subtracted in 200 components = -0.00052827 Jy ! Clean residual min=-0.006542 max=0.007512 Jy/beam ! Clean residual mean=-0.000178 rms=0.002261 Jy/beam ! Combined flux in latest and established models = 1.34451 Jy selfcal ! Performing phase self-cal ! Adding 23 model components to the UV plane model. ! The established model now contains 169 components and 1.34451 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.273012Jy sigma=0.002329 ! Fit after self-cal, rms=0.272994Jy sigma=0.002329 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 = 7.78798e-05 Jy ! Component: 100 - total flux cleaned = 0.000157277 Jy ! Component: 150 - total flux cleaned = 8.42635e-05 Jy ! Component: 200 - total flux cleaned = 8.33015e-05 Jy ! Total flux subtracted in 200 components = 8.33015e-05 Jy ! Clean residual min=-0.006499 max=0.007497 Jy/beam ! Clean residual mean=-0.000187 rms=0.002205 Jy/beam ! Combined flux in latest and established models = 1.34459 Jy ! Performing phase self-cal ! Adding 16 model components to the UV plane model. ! The established model now contains 172 components and 1.34459 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.272952Jy sigma=0.002329 ! Fit after self-cal, rms=0.272934Jy sigma=0.002328 ! 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=1.147 mas, bmaj=3.498 mas, bpa=16.89 degrees ! Estimated noise=658.364 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 1.147 x 3.498 at 16.89 degrees (North through East) ! Clean map min=-0.0072315 max=1.1381 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=0.272934Jy sigma=0.002328 ! Fit after self-cal, rms=0.256888Jy sigma=0.002087 ! Inverting map and beam ! Estimated beam: bmin=1.148 mas, bmaj=3.497 mas, bpa=16.86 degrees ! Estimated noise=657.776 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000735716 Jy ! Component: 100 - total flux cleaned = -0.000947478 Jy ! Component: 150 - total flux cleaned = -0.0012386 Jy ! Component: 200 - total flux cleaned = -0.00149979 Jy ! Total flux subtracted in 200 components = -0.00149979 Jy ! Clean residual min=-0.006053 max=0.006265 Jy/beam ! Clean residual mean=-0.000063 rms=0.001756 Jy/beam ! Combined flux in latest and established models = 1.34309 Jy ! Performing phase self-cal ! Adding 22 model components to the UV plane model. ! The established model now contains 181 components and 1.34309 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.256777Jy sigma=0.002086 ! Fit after self-cal, rms=0.256764Jy sigma=0.002086 ! Inverting map ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000424724 Jy ! Component: 100 - total flux cleaned = 0.000344841 Jy ! Component: 150 - total flux cleaned = 0.000193261 Jy ! Component: 200 - total flux cleaned = 0.000122332 Jy ! Total flux subtracted in 200 components = 0.000122332 Jy ! Clean residual min=-0.005985 max=0.006155 Jy/beam ! Clean residual mean=-0.000070 rms=0.001730 Jy/beam ! Combined flux in latest and established models = 1.34322 Jy ! Performing phase self-cal ! Adding 27 model components to the UV plane model. ! The established model now contains 191 components and 1.34322 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.256701Jy sigma=0.002085 ! Fit after self-cal, rms=0.256688Jy sigma=0.002085 ! Inverting map ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.256688Jy sigma=0.002085 ! Fit after self-cal, rms=0.257052Jy sigma=0.002085 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=0.8646 mas, bmaj=2.748 mas, bpa=18.14 degrees ! Estimated noise=1048.23 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.856771 Jy ! Component: 100 - total flux cleaned = 1.05946 Jy ! Component: 150 - total flux cleaned = 1.15227 Jy ! Component: 200 - total flux cleaned = 1.20771 Jy ! Total flux subtracted in 200 components = 1.20771 Jy ! Clean residual min=-0.013076 max=0.029272 Jy/beam ! Clean residual mean=0.001400 rms=0.006198 Jy/beam ! Combined flux in latest and established models = 1.20771 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 32 model components to the UV plane model. ! The established model now contains 32 components and 1.20771 Jy ! Inverting map and beam ! Estimated beam: bmin=1.149 mas, bmaj=3.5 mas, bpa=16.86 degrees ! Estimated noise=657.528 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 = 0.0576241 Jy ! Component: 100 - total flux cleaned = 0.0869436 Jy ! Component: 150 - total flux cleaned = 0.103567 Jy ! Component: 200 - total flux cleaned = 0.114527 Jy ! Total flux subtracted in 200 components = 0.114527 Jy ! Clean residual min=-0.006377 max=0.008566 Jy/beam ! Clean residual mean=0.000526 rms=0.002470 Jy/beam ! Combined flux in latest and established models = 1.32224 Jy ! Adding 60 model components to the UV plane model. ! The established model now contains 81 components and 1.32224 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=2.604 mas, bmaj=5.618 mas, bpa=0.5363 degrees ! Estimated noise=726.827 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00967683 Jy ! Component: 100 - total flux cleaned = 0.0150928 Jy ! Component: 150 - total flux cleaned = 0.017885 Jy ! Component: 200 - total flux cleaned = 0.0188056 Jy ! Total flux subtracted in 200 components = 0.0188056 Jy ! Clean residual min=-0.005890 max=0.007687 Jy/beam ! Clean residual mean=-0.000011 rms=0.002110 Jy/beam ! Combined flux in latest and established models = 1.34104 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 = 0.000732274 Jy ! Component: 100 - total flux cleaned = 0.00126267 Jy ! Component: 150 - total flux cleaned = 0.00159946 Jy ! Component: 200 - total flux cleaned = 0.00174695 Jy ! Total flux subtracted in 200 components = 0.00174695 Jy ! Clean residual min=-0.005676 max=0.007268 Jy/beam ! Clean residual mean=-0.000092 rms=0.002010 Jy/beam ! Combined flux in latest and established models = 1.34279 Jy ! Adding 57 model components to the UV plane model. ! The established model now contains 133 components and 1.34279 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=1.149 mas, bmaj=3.5 mas, bpa=16.86 degrees ! Estimated noise=657.528 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.000254572 Jy ! Component: 100 - total flux cleaned = 0.000249866 Jy ! Component: 150 - total flux cleaned = 0.000252239 Jy ! Component: 200 - total flux cleaned = 0.000340847 Jy ! Total flux subtracted in 200 components = 0.000340847 Jy ! Clean residual min=-0.005275 max=0.006051 Jy/beam ! Clean residual mean=-0.000079 rms=0.001722 Jy/beam ! Combined flux in latest and established models = 1.34313 Jy selfcal ! Performing phase self-cal ! Adding 18 model components to the UV plane model. ! The established model now contains 150 components and 1.34313 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.256992Jy sigma=0.002086 ! Fit after self-cal, rms=0.256884Jy sigma=0.002085 wmodel J0921-2618_X_1998_10_01_pus_map.mod ! Writing 150 model components to file: J0921-2618_X_1998_10_01_pus_map.mod wobs J0921-2618_X_1998_10_01_pus_uvs.fits ! Writing UV FITS file: J0921-2618_X_1998_10_01_pus_uvs.fits wwins J0921-2618_X_1998_10_01_pus_map.win ! wwins: Wrote 2 windows to J0921-2618_X_1998_10_01_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=1024 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = 6.05528e-06 Jy ! Component: 100 - total flux cleaned = -0.000278177 Jy ! Component: 150 - total flux cleaned = -0.000619242 Jy ! Component: 200 - total flux cleaned = -0.000307232 Jy ! Component: 250 - total flux cleaned = -0.000233664 Jy ! Component: 300 - total flux cleaned = -0.000231802 Jy ! Component: 350 - total flux cleaned = -0.000430943 Jy ! Component: 400 - total flux cleaned = -0.000623048 Jy ! Component: 450 - total flux cleaned = -0.000936048 Jy ! Component: 500 - total flux cleaned = -0.00130052 Jy ! Component: 550 - total flux cleaned = -0.00165412 Jy ! Component: 600 - total flux cleaned = -0.00188399 Jy ! Component: 650 - total flux cleaned = -0.00221953 Jy ! Component: 700 - total flux cleaned = -0.00243878 Jy ! Component: 750 - total flux cleaned = -0.00281396 Jy ! Component: 800 - total flux cleaned = -0.00312755 Jy ! Component: 850 - total flux cleaned = -0.00338441 Jy ! Component: 900 - total flux cleaned = -0.00363538 Jy ! Component: 950 - total flux cleaned = -0.00388107 Jy ! Component: 1000 - total flux cleaned = -0.00402574 Jy ! Total flux subtracted in 1024 components = -0.00421614 Jy ! Clean residual min=-0.002662 max=0.002643 Jy/beam ! Clean residual mean=-0.000035 rms=0.001065 Jy/beam ! Combined flux in latest and established models = 1.33891 Jy keep ! Adding 71 model components to the UV plane model. ! The established model now contains 221 components and 1.33891 Jy ![Exited script file: muppet] wmap "J0921-2618_X_1998_10_01_pus\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 1.149 x 3.5 at 16.86 degrees (North through East) ! Clean map min=-0.0051891 max=1.1414 Jy/beam ! Writing clean map to FITS file: J0921-2618_X_1998_10_01_pus_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 1.14136 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.00106543 device "J0921-2618_X_1998_10_01_pus\_map.eps/VPS" ! Attempting to open device: 'J0921-2618_X_1998_10_01_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.280043 0.280043 0.560086 1.12017 2.24034 4.48069 8.96138 17.9228 35.8455 71.691 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0031 print "peak=",int(1000*peak_flux)/1000 ! peak= 1.141 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 1.149 x 3.5 at 16.86 degrees (North through East) ! Clean map min=-0.0051891 max=1.1414 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J0921-2618_X_1998_10_01_pus\_map.gif/vgif" ! Attempting to open device: 'J0921-2618_X_1998_10_01_pus_map.gif/vgif' mapplot cln quit ! Quitting program ! Log file J0921-2618_X_1998_10_01_pus_uvs.log closed on Wed Feb 6 12:27:54 2008