! Started logfile: 0920-397_S.log on Tue Apr 29 23:18:19 2008 observe 0920-397_S.edt ! Reading UV FITS file: 0920-397_S.edt ! AN table 1: 1 integrations on 153 of 153 possible baselines. ! Apparent sampling: 0.0392157 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: 0920-397 ! ! 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 955 lines of history. ! ! Reading 24 visibilities. ![@gonzo7-0.4-pw 0920-397_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 = 7.0 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 14 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 18 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 18 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 18 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.246683Jy sigma=0.001401 ! Fit after self-cal, rms=0.246667Jy sigma=0.001401 ! 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=7.432 mas, bmaj=81 mas, bpa=-3.013 degrees ! Estimated noise=53701.4 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 = 0.882619 Jy ! Total flux subtracted in 50 components = 0.882619 Jy ! Clean residual min=-0.230941 max=0.246149 Jy/beam ! Clean residual mean=-0.002433 rms=0.092917 Jy/beam ! Combined flux in latest and established models = 0.882619 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 0.882619 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.325745Jy sigma=0.001800 ! Fit after self-cal, rms=0.325758Jy sigma=0.001800 ! 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=7.432 mas, bmaj=81 mas, bpa=-3.013 degrees ! Estimated noise=53701.4 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 = 0.0789797 Jy ! Component: 100 - total flux cleaned = 0.0721077 Jy ! Total flux subtracted in 100 components = 0.0721077 Jy ! Clean residual min=-0.120198 max=0.111734 Jy/beam ! Clean residual mean=-0.000303 rms=0.047542 Jy/beam ! Combined flux in latest and established models = 0.954727 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 33 model components to the UV plane model. ! The established model now contains 33 components and 0.954727 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.160528Jy sigma=0.000889 ! Fit after self-cal, rms=0.155823Jy sigma=0.000871 ! Inverting map print "****************************************" ! **************************************** print "*** Finished Natural Weighting CLEAN ***" ! *** Finished Natural Weighting CLEAN *** print "****************************************" ! **************************************** gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00* FD 1.03 GC 1.00* HH 1.00* ! HN 1.00* KK 1.00* KP 0.96 LA 1.00* ! MC 1.00* MK 1.00* NL 0.93 NY 1.00* ! ON 1.00* OV 0.97 PT 1.00* SC 1.00* ! WF 1.00* WZ 1.00* ! ! ! Correcting IF 2. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* GC 0.00* HH 0.00* ! HN 0.00* KK 0.00* KP 0.00* LA 0.00* ! MC 0.00* MK 0.00* NL 0.00* NY 0.00* ! ON 0.00* OV 0.00* PT 0.00* SC 0.00* ! WF 0.00* WZ 0.00* ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* GC 0.00* HH 0.00* ! HN 0.00* KK 0.00* KP 0.00* LA 0.00* ! MC 0.00* MK 0.00* NL 0.00* NY 0.00* ! ON 0.00* OV 0.00* PT 0.00* SC 0.00* ! WF 0.00* WZ 0.00* ! ! ! Correcting IF 4. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* GC 0.00* HH 0.00* ! HN 0.00* KK 0.00* KP 0.00* LA 0.00* ! MC 0.00* MK 0.00* NL 0.00* NY 0.00* ! ON 0.00* OV 0.00* PT 0.00* SC 0.00* ! WF 0.00* WZ 0.00* ! ! ! Fit before self-cal, rms=0.155823Jy sigma=0.000871 ! Fit after self-cal, rms=0.129927Jy sigma=0.000792 dynam = dynam - 0.5 doamp = false flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=7.349 mas, bmaj=81.48 mas, bpa=-3.135 degrees ! Estimated noise=51118.5 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 = 0.0233062 Jy ! Component: 100 - total flux cleaned = 0.0229897 Jy ! Total flux subtracted in 100 components = 0.0229897 Jy ! Clean residual min=-0.056781 max=0.080471 Jy/beam ! Clean residual mean=0.000123 rms=0.027954 Jy/beam ! Combined flux in latest and established models = 0.977716 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 53 model components to the UV plane model. ! The established model now contains 81 components and 0.977716 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.092099Jy sigma=0.000546 ! Fit after self-cal, rms=0.081991Jy sigma=0.000500 ! 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) ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00896388 Jy ! Component: 100 - total flux cleaned = -0.022429 Jy ! Total flux subtracted in 100 components = -0.022429 Jy ! Clean residual min=-0.034570 max=0.055577 Jy/beam ! Clean residual mean=0.000117 rms=0.018406 Jy/beam ! Combined flux in latest and established models = 0.955287 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 55 model components to the UV plane model. ! The established model now contains 127 components and 0.955287 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.061038Jy sigma=0.000360 ! Fit after self-cal, rms=0.053946Jy sigma=0.000330 ! Inverting map and beam ! Estimated beam: bmin=7.331 mas, bmaj=81.39 mas, bpa=-3.154 degrees ! Estimated noise=50981.9 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 = 0.00607031 Jy ! Component: 100 - total flux cleaned = -0.000522337 Jy ! Total flux subtracted in 100 components = -0.000522337 Jy ! Clean residual min=-0.022128 max=0.036217 Jy/beam ! Clean residual mean=0.000095 rms=0.011981 Jy/beam ! Combined flux in latest and established models = 0.954765 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 46 model components to the UV plane model. ! The established model now contains 153 components and 0.954765 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.039424Jy sigma=0.000236 ! Fit after self-cal, rms=0.036017Jy sigma=0.000221 ! Inverting map print "***********************************" ! *********************************** print "*** Finished Amplitude Self-Cal ***" ! *** Finished Amplitude Self-Cal *** print "***********************************" ! *********************************** save 0920-397_S ! Writing UV FITS file: 0920-397_S.uvf ! Writing 153 model components to file: 0920-397_S.mod ! wwins: Wrote 1 windows to 0920-397_S.win ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.331 x 81.39 at -3.154 degrees (North through East) ! Clean map min=-0.14319 max=1.0142 Jy/beam ! Writing clean map to FITS file: 0920-397_S.fits ! Writing difmap environment to: 0920-397_S.par print "****************************" ! **************************** print "*** Now, make some plots ***" ! *** Now, make some plots *** print "****************************" ! **************************** ![@gonzo_plot 0920-397_S] device 0920-397_Suv.ps/vps,1,2 ! Attempting to open device: '0920-397_Suv.ps/vps' radplot ! Using default options string "m1" uvplot ! Using default options string "" device 0920-397_Sim.ps/vps ! Attempting to open device: '0920-397_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=7.331 mas, bmaj=81.39 mas, bpa=-3.154 degrees ! Estimated noise=50981.9 mJy/beam. mappl cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 7.331 x 81.39 at -3.154 degrees (North through East) ! Clean map min=-0.14319 max=1.0142 Jy/beam ![Exited script file: gonzo_plot] ![Exited script file: gonzo7-0.4-pw] quit ! Quitting program ! Log file 0920-397_S.log closed on Tue Apr 29 23:18:26 2008