! Started logfile: 3C446_S.log on Fri Feb 20 14:21:22 2009 observe 3C446_S.edt ! Reading UV FITS file: 3C446_S.edt ! AN table 1: 39 integrations on 190 of 190 possible baselines. ! AN table 2: 28 integrations on 190 of 190 possible baselines. ! Apparent sampling: 0.220031 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: 3C446 ! ! There are 4 IFs, and a total of 4 channels: ! ! IF Channel Frequency Freq offset Number of Overall IF ! origin at origin per channel channels bandwidth ! ------------------------------------------------------------- (Hz) ! 01 1 2.22497e+09 8e+06 1 8e+06 ! 02 2 2.24497e+09 8e+06 1 8e+06 ! 03 3 2.33497e+09 8e+06 1 8e+06 ! 04 4 2.36497e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 1481 lines of history. ! ! Reading 11204 visibilities. ![@gonzo6-0.4 3C446_S] print "***********************************" ! *********************************** print "*** Using gonzo instruction set ***" ! *** Using gonzo instruction set *** print "***********************************" ! *********************************** float field_size field_size = 1024 float field_cell field_cell = 0.4 integer clean_niter clean_niter = 50 float clean_gain clean_gain = 0.03 float dynam dynam = 6.0 float win_mult win_mult = 1.8 float solint solint = 3.6/6.0 logical doflt doflt = true logical doamp float new_peak float flux_cutoff mapsize field_size,field_cell ! Map grid = 1024x1024 pixels with 0.400x0.400 milli-arcsec cellsize. select ! 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 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 553 telescope corrections were flagged in sub-array 1. ! A total of 443 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 2. ! A total of 551 telescope corrections were flagged in sub-array 1. ! A total of 443 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 3. ! A total of 551 telescope corrections were flagged in sub-array 1. ! A total of 443 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 4. ! A total of 551 telescope corrections were flagged in sub-array 1. ! A total of 443 telescope corrections were flagged in sub-array 2. ! ! Fit before self-cal, rms=0.823213Jy sigma=8.914303 ! Fit after self-cal, rms=0.816434Jy sigma=8.907593 ! clrmod: Cleared the established, tentative and continuum models. ! Redundant starting model cleared. uvweight 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. doamp = false flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.107 mas, bmaj=6.101 mas, bpa=-1.334 degrees ! Estimated noise=1.85169 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal doamp, doflt, solint new_peak = peak(flux) until(new_peak<=flux_cutoff) ! Added new window around map position (0, 0). ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 1.23467 Jy ! Total flux subtracted in 50 components = 1.23467 Jy ! Clean residual min=-0.080293 max=0.344480 Jy/beam ! Clean residual mean=0.001051 rms=0.026510 Jy/beam ! Combined flux in latest and established models = 1.23467 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 2 model components to the UV plane model. ! The established model now contains 2 components and 1.23467 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.680779Jy sigma=7.095963 ! Fit after self-cal, rms=0.680790Jy sigma=7.095945 ! Inverting map ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.279168 Jy ! Total flux subtracted in 50 components = 0.279168 Jy ! Clean residual min=-0.078927 max=0.177710 Jy/beam ! Clean residual mean=0.000783 rms=0.020388 Jy/beam ! Combined flux in latest and established models = 1.51384 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 5 model components to the UV plane model. ! The established model now contains 5 components and 1.51384 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.600201Jy sigma=5.653651 ! Fit after self-cal, rms=0.599832Jy sigma=5.651109 ! Inverting map ! Added new window around map position (2.8, -1.2). ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.163524 Jy ! Total flux subtracted in 50 components = 0.163524 Jy ! Clean residual min=-0.072368 max=0.094699 Jy/beam ! Clean residual mean=0.000628 rms=0.018353 Jy/beam ! Combined flux in latest and established models = 1.67736 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 3 model components to the UV plane model. ! The established model now contains 8 components and 1.67736 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.565657Jy sigma=5.163759 ! Fit after self-cal, rms=0.563640Jy sigma=5.139174 ! Inverting map print "****************************************" ! **************************************** print "*** Finished Uniform Weighting CLEAN ***" ! *** Finished Uniform Weighting CLEAN *** print "****************************************" ! **************************************** uvweight 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 doamp = false flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.639 mas, bmaj=7.019 mas, bpa=-0.3326 degrees ! Estimated noise=1.28019 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal doamp, doflt, solint new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.101472 Jy ! Component: 100 - total flux cleaned = 0.138014 Jy ! Total flux subtracted in 100 components = 0.138014 Jy ! Clean residual min=-0.099647 max=0.121752 Jy/beam ! Clean residual mean=0.007177 rms=0.031575 Jy/beam ! Combined flux in latest and established models = 1.81538 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 11 model components to the UV plane model. ! The established model now contains 18 components and 1.81538 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.546752Jy sigma=4.868088 ! Fit after self-cal, rms=0.545889Jy sigma=4.853712 ! Inverting map print "****************************************" ! **************************************** print "*** Finished Natural Weighting CLEAN ***" ! *** Finished Natural Weighting CLEAN *** print "****************************************" ! **************************************** gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 9 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.81 FD 1.00* GC 1.01 HH 1.00* ! HN 0.84 KK 0.98 KP 1.34 LA 1.68 ! MA 3.18 MC 0.93 MK 0.97 NL 1.09 ! NY 1.00* ON 0.70 OV 0.93 PT 0.88 ! SC 1.07 TS 1.00* WF 0.96 WZ 0.69 ! ! A total of 39 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.82 FD 0.98 GC 0.93 HH 1.00* ! HN 0.81 KK 0.86 KP 1.20 LA 1.37 ! MA 1.00* MC 1.00* MK 0.81 NL 0.81 ! NY 1.00* ON 1.00* OV 0.93 PT 0.83 ! SC 1.25 TS 1.00 WF 0.95 WZ 1.00* ! ! ! Correcting IF 2. ! A total of 3 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.81 FD 1.00* GC 1.01 HH 1.00* ! HN 0.87 KK 1.01 KP 1.43 LA 1.72 ! MA 1.09 MC 0.85 MK 0.96 NL 1.28 ! NY 1.00* ON 0.65 OV 0.86 PT 0.94 ! SC 0.91 TS 1.00* WF 0.95 WZ 0.68 ! ! A total of 39 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.85 FD 0.85 GC 0.88 HH 1.00* ! HN 0.93 KK 0.84 KP 1.29 LA 1.35 ! MA 1.00* MC 1.00* MK 0.86 NL 0.90 ! NY 1.00* ON 1.00* OV 0.86 PT 0.84 ! SC 1.09 TS 1.03 WF 1.09 WZ 1.00* ! ! ! Correcting IF 3. ! A total of 3 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.88 FD 1.00* GC 0.93 HH 1.00* ! HN 1.04 KK 0.96 KP 1.50 LA 1.60 ! MA 2.12 MC 1.80 MK 0.93 NL 1.29 ! NY 1.00* ON 0.62 OV 0.90 PT 0.94 ! SC 1.02 TS 1.00* WF 0.84 WZ 0.64 ! ! A total of 39 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.84 FD 0.79 GC 0.88 HH 1.00* ! HN 1.06 KK 0.79 KP 1.32 LA 1.21 ! MA 1.00* MC 1.00* MK 0.85 NL 0.92 ! NY 1.00* ON 1.00* OV 0.91 PT 0.87 ! SC 1.15 TS 1.01 WF 1.04 WZ 1.00* ! ! ! Correcting IF 4. ! A total of 3 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.88 FD 1.00* GC 1.00 HH 1.00* ! HN 1.01 KK 1.01 KP 1.50 LA 1.51 ! MA 2.18 MC 1.13 MK 0.90 NL 1.33 ! NY 1.00* ON 0.69 OV 0.81 PT 1.01 ! SC 0.99 TS 1.00* WF 0.88 WZ 0.68 ! ! A total of 39 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 0.89 FD 0.73 GC 0.87 HH 1.00* ! HN 1.07 KK 0.82 KP 1.22 LA 1.10 ! MA 1.00* MC 1.00* MK 0.81 NL 0.92 ! NY 1.00* ON 1.00* OV 0.84 PT 0.88 ! SC 1.08 TS 0.99 WF 1.04 WZ 1.00* ! ! ! Fit before self-cal, rms=0.545889Jy sigma=4.853712 ! Fit after self-cal, rms=0.307110Jy sigma=1.876220 dynam = dynam - 0.5 doamp = false flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.573 mas, bmaj=6.826 mas, bpa=-1.543 degrees ! Estimated noise=1.29823 mJy/beam. repeat if (peak(flux) > flux_cutoff) peakwin win_mult clean clean_niter,clean_gain flux_cutoff = imstat(rms) * dynam selfcal doamp, doflt, solint new_peak = peak(flux) until(new_peak<=flux_cutoff) ! Added new window around map position (51.2, -16). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0591356 Jy ! Component: 100 - total flux cleaned = 0.0979829 Jy ! Total flux subtracted in 100 components = 0.0979829 Jy ! Clean residual min=-0.020971 max=0.037904 Jy/beam ! Clean residual mean=0.003508 rms=0.007514 Jy/beam ! Combined flux in latest and established models = 1.91336 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 24 model components to the UV plane model. ! The established model now contains 41 components and 1.91336 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.294666Jy sigma=1.769419 ! Fit after self-cal, rms=0.293835Jy sigma=1.734860 ! Inverting map ! Added new window around map position (21.6, 10.8). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0389598 Jy ! Component: 100 - total flux cleaned = 0.0597228 Jy ! Total flux subtracted in 100 components = 0.0597228 Jy ! Clean residual min=-0.018535 max=0.033200 Jy/beam ! Clean residual mean=0.002878 rms=0.006706 Jy/beam ! Combined flux in latest and established models = 1.97308 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 27 model components to the UV plane model. ! The established model now contains 58 components and 1.97308 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.287270Jy sigma=1.693259 ! Fit after self-cal, rms=0.286994Jy sigma=1.686903 ! Inverting map ! Added new window around map position (6, -1.2). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0277232 Jy ! Component: 100 - total flux cleaned = 0.0445872 Jy ! Total flux subtracted in 100 components = 0.0445872 Jy ! Clean residual min=-0.017788 max=0.025253 Jy/beam ! Clean residual mean=0.002405 rms=0.006212 Jy/beam ! Combined flux in latest and established models = 2.01767 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 23 model components to the UV plane model. ! The established model now contains 72 components and 2.01767 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.281997Jy sigma=1.671014 ! Fit after self-cal, rms=0.281851Jy sigma=1.665299 ! Inverting map dynam = dynam - 1.0 doamp = true solint = solint * (6.0/3.6) 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 doamp, doflt, solint new_peak = peak(flux) until(new_peak<=flux_cutoff) ! Added new window around map position (84.8, -97.2). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.025202 Jy ! Component: 100 - total flux cleaned = 0.0412944 Jy ! Total flux subtracted in 100 components = 0.0412944 Jy ! Clean residual min=-0.016709 max=0.021389 Jy/beam ! Clean residual mean=0.002160 rms=0.005742 Jy/beam ! Combined flux in latest and established models = 2.05897 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 33 model components to the UV plane model. ! The established model now contains 95 components and 2.05897 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.278372Jy sigma=1.673156 ! Fit after self-cal, rms=0.272245Jy sigma=1.486449 ! Inverting map and beam ! Estimated beam: bmin=2.566 mas, bmaj=6.799 mas, bpa=-1.52 degrees ! Estimated noise=1.29603 mJy/beam. ! Added new window around map position (58, -18.4). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0260021 Jy ! Component: 100 - total flux cleaned = 0.0411523 Jy ! Total flux subtracted in 100 components = 0.0411523 Jy ! Clean residual min=-0.014084 max=0.021008 Jy/beam ! Clean residual mean=0.001650 rms=0.005100 Jy/beam ! Combined flux in latest and established models = 2.10012 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 28 model components to the UV plane model. ! The established model now contains 118 components and 2.10012 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.268749Jy sigma=1.463491 ! Fit after self-cal, rms=0.263999Jy sigma=1.426589 ! Inverting map and beam ! Estimated beam: bmin=2.564 mas, bmaj=6.794 mas, bpa=-1.511 degrees ! Estimated noise=1.29484 mJy/beam. ! Added new window around map position (13.6, -2). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0188536 Jy ! Component: 100 - total flux cleaned = 0.0332307 Jy ! Total flux subtracted in 100 components = 0.0332307 Jy ! Clean residual min=-0.013072 max=0.016028 Jy/beam ! Clean residual mean=0.001225 rms=0.004719 Jy/beam ! Combined flux in latest and established models = 2.13335 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 41 model components to the UV plane model. ! The established model now contains 145 components and 2.13335 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.261515Jy sigma=1.406441 ! Fit after self-cal, rms=0.258770Jy sigma=1.388302 ! Inverting map and beam ! Estimated beam: bmin=2.563 mas, bmaj=6.79 mas, bpa=-1.514 degrees ! Estimated noise=1.29273 mJy/beam. doamp = false solint = solint / (6.0/3.6) 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 doamp, doflt, solint new_peak = peak(flux) until(new_peak<=flux_cutoff) ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0105248 Jy ! Component: 100 - total flux cleaned = 0.0223226 Jy ! Total flux subtracted in 100 components = 0.0223226 Jy ! Clean residual min=-0.012142 max=0.015109 Jy/beam ! Clean residual mean=0.000982 rms=0.004473 Jy/beam ! Combined flux in latest and established models = 2.15567 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 44 model components to the UV plane model. ! The established model now contains 165 components and 2.15567 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.256939Jy sigma=1.376459 ! Fit after self-cal, rms=0.256474Jy sigma=1.370896 ! Inverting map print "***********************************" ! *********************************** print "*** Finished Amplitude Self-Cal ***" ! *** Finished Amplitude Self-Cal *** print "***********************************" ! *********************************** save 3C446_S ! Writing UV FITS file: 3C446_S.uvf ! Writing 165 model components to file: 3C446_S.mod ! wwins: Wrote 8 windows to 3C446_S.win ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.563 x 6.79 at -1.514 degrees (North through East) ! Clean map min=-0.012171 max=1.5211 Jy/beam ! Writing clean map to FITS file: 3C446_S.fits ! Writing difmap environment to: 3C446_S.par print "****************************" ! **************************** print "*** Now, make some plots ***" ! *** Now, make some plots *** print "****************************" ! **************************** ![@gonzo_plot 3C446_S] device 3C446_Suv.ps/vps,1,2 ! Attempting to open device: '3C446_Suv.ps/vps' radplot ! Using default options string "m1" uvplot ! Using default options string "" device 3C446_Sim.ps/vps ! Attempting to open device: '3C446_Sim.ps/vps' uvweight 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. loglevs -1,2048,2 ! The new contour levels are: ! -1 1 2 4 8 16 32 64 128 256 512 1024 2048 cmul = imstat(rms)*3 ! Inverting map and beam ! Estimated beam: bmin=2.563 mas, bmaj=6.79 mas, bpa=-1.514 degrees ! Estimated noise=1.29273 mJy/beam. mappl cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.563 x 6.79 at -1.514 degrees (North through East) ! Clean map min=-0.012171 max=1.5211 Jy/beam ![Exited script file: gonzo_plot] ![Exited script file: gonzo6-0.4] quit ! Quitting program ! Log file 3C446_S.log closed on Fri Feb 20 14:21:31 2009