! Started logfile: 1951+355_S.log on Mon Jun 23 10:54:25 2008 observe 1951+355_S.edt ! Reading UV FITS file: 1951+355_S.edt ! AN table 1: 48 integrations on 190 of 190 possible baselines. ! Apparent sampling: 0.11875 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: 1951+355 ! ! 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 1901 lines of history. ! ! Reading 4332 visibilities. ![@gonzo6-0.4-pw 1951+355_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 703 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 706 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 844 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 703 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.867535Jy sigma=18.113796 ! Fit after self-cal, rms=0.864984Jy sigma=18.113966 ! 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 peakw win_mult ! Inverting map and beam ! Estimated beam: bmin=3.919 mas, bmaj=9.159 mas, bpa=-47.92 degrees ! Estimated noise=1.57412 mJy/beam. ! Added new window around map position (0, 0). 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=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.112445 Jy ! Total flux subtracted in 50 components = 0.112445 Jy ! Clean residual min=-0.023122 max=0.050445 Jy/beam ! Clean residual mean=-0.000477 rms=0.009414 Jy/beam ! Combined flux in latest and established models = 0.112445 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 23 components and 0.112445 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.132173Jy sigma=2.932530 ! Fit after self-cal, rms=0.132083Jy sigma=2.931696 ! 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=6.367 mas, bmaj=10.28 mas, bpa=-65 degrees ! Estimated noise=0.755057 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 = 0.0796192 Jy ! Component: 100 - total flux cleaned = 0.120277 Jy ! Total flux subtracted in 100 components = 0.120277 Jy ! Clean residual min=-0.012492 max=0.030029 Jy/beam ! Clean residual mean=-0.000627 rms=0.005616 Jy/beam ! Combined flux in latest and established models = 0.232722 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 41 model components to the UV plane model. ! The established model now contains 59 components and 0.232722 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.088985Jy sigma=1.686368 ! Fit after self-cal, rms=0.087997Jy sigma=1.676691 ! 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 18 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.18 FD 0.89 GC 1.00* HH 1.00* ! HN 0.85 KK 1.00* KP 0.89 LA 0.89 ! MA 1.00* MC 1.00* MK 1.95 NL 1.40 ! NY 1.00* ON 1.00* OV 0.88 PT 0.85 ! SC 1.00* TS 1.00* WF 1.00* WZ 1.00* ! ! ! Correcting IF 2. ! A total of 15 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.15 FD 0.95 GC 1.00* HH 1.00* ! HN 0.70 KK 1.00* KP 0.94 LA 0.84 ! MA 1.00* MC 1.00* MK 1.25 NL 1.55 ! NY 1.00* ON 1.00* OV 0.89 PT 0.78 ! SC 1.00* TS 1.00* WF 1.00* WZ 1.00* ! ! ! Correcting IF 3. ! A total of 21 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.11 FD 0.89 GC 1.00* HH 1.00* ! HN 0.59 KK 1.00* KP 1.74 LA 0.89 ! MA 1.00* MC 1.00* MK 1.00* NL 1.90 ! NY 1.00* ON 1.00* OV 0.79 PT 0.85 ! SC 1.00* TS 1.00* WF 1.00* WZ 1.00* ! ! ! Correcting IF 4. ! A total of 18 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.08 FD 0.87 GC 1.00* HH 1.00* ! HN 0.91 KK 1.00* KP 0.92 LA 0.89 ! MA 1.00* MC 1.00* MK 0.95 NL 1.36 ! NY 1.00* ON 1.00* OV 0.85 PT 0.88 ! SC 1.00* TS 1.00* WF 1.00* WZ 1.00* ! ! ! Fit before self-cal, rms=0.087997Jy sigma=1.676691 ! Fit after self-cal, rms=0.086419Jy sigma=1.325050 dynam = dynam - 0.5 doamp = false flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=6.834 mas, bmaj=11.58 mas, bpa=-76.32 degrees ! Estimated noise=0.685769 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 = -0.00385462 Jy ! Component: 100 - total flux cleaned = -0.00429451 Jy ! Total flux subtracted in 100 components = -0.00429451 Jy ! Clean residual min=-0.004732 max=0.006159 Jy/beam ! Clean residual mean=-0.000011 rms=0.001536 Jy/beam ! Combined flux in latest and established models = 0.228427 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 9 model components to the UV plane model. ! The established model now contains 68 components and 0.228427 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.086153Jy sigma=1.316629 ! Fit after self-cal, rms=0.085888Jy sigma=1.313705 ! 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 (-31.2, -60.8). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00313603 Jy ! Component: 100 - total flux cleaned = 0.00325972 Jy ! Total flux subtracted in 100 components = 0.00325972 Jy ! Clean residual min=-0.004049 max=0.004148 Jy/beam ! Clean residual mean=-0.000048 rms=0.001329 Jy/beam ! Combined flux in latest and established models = 0.231687 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 13 model components to the UV plane model. ! The established model now contains 81 components and 0.231687 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.085458Jy sigma=1.303313 ! Fit after self-cal, rms=0.083322Jy sigma=1.252322 ! Inverting map and beam ! Estimated beam: bmin=6.707 mas, bmaj=11.44 mas, bpa=-75.85 degrees ! Estimated noise=0.670337 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 = 0.000724169 Jy ! Component: 100 - total flux cleaned = 0.000646 Jy ! Total flux subtracted in 100 components = 0.000646 Jy ! Clean residual min=-0.003434 max=0.003929 Jy/beam ! Clean residual mean=-0.000048 rms=0.001082 Jy/beam ! Combined flux in latest and established models = 0.232333 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 16 model components to the UV plane model. ! The established model now contains 94 components and 0.232333 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.083146Jy sigma=1.248320 ! Fit after self-cal, rms=0.083282Jy sigma=1.246917 ! Inverting map print "***********************************" ! *********************************** print "*** Finished Amplitude Self-Cal ***" ! *** Finished Amplitude Self-Cal *** print "***********************************" ! *********************************** save 1951+355_S ! Writing UV FITS file: 1951+355_S.uvf ! Writing 94 model components to file: 1951+355_S.mod ! wwins: Wrote 2 windows to 1951+355_S.win ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 6.707 x 11.44 at -75.85 degrees (North through East) ! Clean map min=-0.0033408 max=0.13313 Jy/beam ! Writing clean map to FITS file: 1951+355_S.fits ! Writing difmap environment to: 1951+355_S.par print "****************************" ! **************************** print "*** Now, make some plots ***" ! *** Now, make some plots *** print "****************************" ! **************************** ![@gonzo_plot 1951+355_S] device 1951+355_Suv.ps/vps,1,2 ! Attempting to open device: '1951+355_Suv.ps/vps' radplot ! Using default options string "m1" uvplot ! Using default options string "" device 1951+355_Sim.ps/vps ! Attempting to open device: '1951+355_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=6.707 mas, bmaj=11.44 mas, bpa=-75.85 degrees ! Estimated noise=0.670337 mJy/beam. mappl cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 6.707 x 11.44 at -75.85 degrees (North through East) ! Clean map min=-0.0033408 max=0.13313 Jy/beam ![Exited script file: gonzo_plot] ![Exited script file: gonzo6-0.4-pw] quit ! Quitting program ! Log file 1951+355_S.log closed on Mon Jun 23 10:54:32 2008