! Started logfile: 3C274_S.log on Thu May 8 12:48:07 2008 observe 3C274_S.edt ! Reading UV FITS file: 3C274_S.edt ! AN table 1: 72 integrations on 153 of 153 possible baselines. ! Apparent sampling: 0.16004 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: 3C274 ! ! 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 963 lines of history. ! ! Reading 7052 visibilities. ![@gonzo5-0.4 3C274_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 = 5.0 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 1002 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 997 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 991 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 4. ! A total of 1026 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=0.435109Jy sigma=0.004269 ! Fit after self-cal, rms=0.422105Jy sigma=0.004132 ! 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=2.432 mas, bmaj=4.504 mas, bpa=-10.82 degrees ! Estimated noise=2121.78 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 = 0.675259 Jy ! Total flux subtracted in 50 components = 0.675259 Jy ! Clean residual min=-0.063274 max=0.243086 Jy/beam ! Clean residual mean=0.001089 rms=0.018643 Jy/beam ! Combined flux in latest and established models = 0.675259 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 7 model components to the UV plane model. ! The established model now contains 7 components and 0.675259 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.541955Jy sigma=0.005471 ! Fit after self-cal, rms=0.541959Jy sigma=0.005470 ! Inverting map ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.2593 Jy ! Total flux subtracted in 50 components = 0.2593 Jy ! Clean residual min=-0.040374 max=0.116515 Jy/beam ! Clean residual mean=0.000852 rms=0.012329 Jy/beam ! Combined flux in latest and established models = 0.934559 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 10 components and 0.934559 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.385720Jy sigma=0.003828 ! Fit after self-cal, rms=0.385672Jy sigma=0.003826 ! Inverting map ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.131745 Jy ! Total flux subtracted in 50 components = 0.131745 Jy ! Clean residual min=-0.033130 max=0.109856 Jy/beam ! Clean residual mean=0.000732 rms=0.010004 Jy/beam ! Combined flux in latest and established models = 1.0663 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 7 model components to the UV plane model. ! The established model now contains 12 components and 1.0663 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.323459Jy sigma=0.003170 ! Fit after self-cal, rms=0.323413Jy sigma=0.003168 ! Inverting map ! Added new window around map position (-4.4, 0.8). ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.102498 Jy ! Total flux subtracted in 50 components = 0.102498 Jy ! Clean residual min=-0.027817 max=0.059006 Jy/beam ! Clean residual mean=0.000635 rms=0.008218 Jy/beam ! Combined flux in latest and established models = 1.1688 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 19 components and 1.1688 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.277922Jy sigma=0.002695 ! Fit after self-cal, rms=0.276733Jy sigma=0.002684 ! Inverting map ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.066658 Jy ! Total flux subtracted in 50 components = 0.066658 Jy ! Clean residual min=-0.024885 max=0.048238 Jy/beam ! Clean residual mean=0.000573 rms=0.007203 Jy/beam ! Combined flux in latest and established models = 1.23546 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 12 model components to the UV plane model. ! The established model now contains 22 components and 1.23546 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.252925Jy sigma=0.002438 ! Fit after self-cal, rms=0.252607Jy sigma=0.002434 ! Inverting map ! Added new window around map position (3.6, -0.8). ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0513125 Jy ! Total flux subtracted in 50 components = 0.0513125 Jy ! Clean residual min=-0.023480 max=0.047426 Jy/beam ! Clean residual mean=0.000525 rms=0.006561 Jy/beam ! Combined flux in latest and established models = 1.28677 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 14 model components to the UV plane model. ! The established model now contains 31 components and 1.28677 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.236979Jy sigma=0.002279 ! Fit after self-cal, rms=0.236975Jy sigma=0.002277 ! Inverting map ! Added new window around map position (-12, 3.6). ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0503281 Jy ! Total flux subtracted in 50 components = 0.0503281 Jy ! Clean residual min=-0.021009 max=0.039265 Jy/beam ! Clean residual mean=0.000480 rms=0.005960 Jy/beam ! Combined flux in latest and established models = 1.3371 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 13 model components to the UV plane model. ! The established model now contains 38 components and 1.3371 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.221283Jy sigma=0.002122 ! Fit after self-cal, rms=0.220876Jy sigma=0.002118 ! Inverting map ! Added new window around map position (-8, 2.8). ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0426508 Jy ! Total flux subtracted in 50 components = 0.0426508 Jy ! Clean residual min=-0.019287 max=0.027536 Jy/beam ! Clean residual mean=0.000442 rms=0.005449 Jy/beam ! Combined flux in latest and established models = 1.37975 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 46 components and 1.37975 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.208902Jy sigma=0.002000 ! Fit after self-cal, rms=0.208673Jy sigma=0.001997 ! 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=3.543 mas, bmaj=5.123 mas, bpa=-5.648 degrees ! Estimated noise=1203.86 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 = 0.0687287 Jy ! Component: 100 - total flux cleaned = 0.117628 Jy ! Total flux subtracted in 100 components = 0.117628 Jy ! Clean residual min=-0.023571 max=0.048208 Jy/beam ! Clean residual mean=0.004544 rms=0.008880 Jy/beam ! Combined flux in latest and established models = 1.49738 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 76 components and 1.49738 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.183212Jy sigma=0.001749 ! Fit after self-cal, rms=0.182289Jy sigma=0.001738 ! Inverting map ! Added new window around map position (-18, 6). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0529076 Jy ! Component: 100 - total flux cleaned = 0.0905801 Jy ! Total flux subtracted in 100 components = 0.0905801 Jy ! Clean residual min=-0.018537 max=0.030573 Jy/beam ! Clean residual mean=0.003706 rms=0.007106 Jy/beam ! Combined flux in latest and established models = 1.58796 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 49 model components to the UV plane model. ! The established model now contains 118 components and 1.58796 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.165267Jy sigma=0.001567 ! Fit after self-cal, rms=0.164080Jy sigma=0.001553 ! Inverting map ! Added new window around map position (-10.4, 12). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.036991 Jy ! Component: 100 - total flux cleaned = 0.0657519 Jy ! Total flux subtracted in 100 components = 0.0657519 Jy ! Clean residual min=-0.017498 max=0.025501 Jy/beam ! Clean residual mean=0.003075 rms=0.006043 Jy/beam ! Combined flux in latest and established models = 1.65371 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 52 model components to the UV plane model. ! The established model now contains 156 components and 1.65371 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.154416Jy sigma=0.001457 ! Fit after self-cal, rms=0.153935Jy sigma=0.001451 ! 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 0.99 FD 1.02 GC 1.00 HH 1.00* ! HN 0.97 KK 0.99 KP 0.98 LA 0.99 ! MC 1.00* MK 0.99 NL 0.97 NY 1.00 ! ON 0.98 OV 0.98 PT 0.98 SC 1.02 ! WF 0.97 WZ 0.99 ! ! ! Correcting IF 2. ! Telescope amplitude corrections in sub-array 1: ! BR 0.99 FD 1.01 GC 1.00 HH 1.00* ! HN 0.97 KK 0.99 KP 0.98 LA 0.99 ! MC 1.06 MK 0.99 NL 0.97 NY 1.01 ! ON 1.00 OV 0.98 PT 0.98 SC 1.01 ! WF 0.96 WZ 1.00 ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! BR 1.00 FD 1.00 GC 1.01 HH 1.00* ! HN 0.98 KK 0.98 KP 0.98 LA 0.98 ! MC 1.07 MK 0.99 NL 0.97 NY 1.00 ! ON 0.97 OV 0.98 PT 0.98 SC 1.02 ! WF 0.98 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 1.00 FD 0.99 GC 1.01 HH 1.00* ! HN 0.98 KK 0.98 KP 0.98 LA 1.00* ! MC 1.00 MK 0.99 NL 0.97 NY 1.01 ! ON 0.99 OV 0.98 PT 0.99 SC 1.02 ! WF 0.97 WZ 0.98 ! ! ! Fit before self-cal, rms=0.153935Jy sigma=0.001451 ! Fit after self-cal, rms=0.146415Jy sigma=0.001415 dynam = dynam - 0.5 doamp = false flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=3.551 mas, bmaj=5.16 mas, bpa=-5.936 degrees ! Estimated noise=1179.08 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 (-25.6, 9.2). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0299257 Jy ! Component: 100 - total flux cleaned = 0.050398 Jy ! Total flux subtracted in 100 components = 0.050398 Jy ! Clean residual min=-0.015297 max=0.017318 Jy/beam ! Clean residual mean=0.001634 rms=0.004728 Jy/beam ! Combined flux in latest and established models = 1.70411 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 37 model components to the UV plane model. ! The established model now contains 191 components and 1.70411 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.139935Jy sigma=0.001349 ! Fit after self-cal, rms=0.139513Jy sigma=0.001345 ! 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 (-54, -1.2). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.019848 Jy ! Component: 100 - total flux cleaned = 0.036276 Jy ! Total flux subtracted in 100 components = 0.036276 Jy ! Clean residual min=-0.014147 max=0.015840 Jy/beam ! Clean residual mean=0.001296 rms=0.004253 Jy/beam ! Combined flux in latest and established models = 1.74038 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 53 model components to the UV plane model. ! The established model now contains 229 components and 1.74038 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.136172Jy sigma=0.001311 ! Fit after self-cal, rms=0.134647Jy sigma=0.001292 ! Inverting map and beam ! Estimated beam: bmin=3.555 mas, bmaj=5.166 mas, bpa=-5.922 degrees ! Estimated noise=1177.66 mJy/beam. ! Added new window around map position (-63.6, -1.6). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0183006 Jy ! Component: 100 - total flux cleaned = 0.0331924 Jy ! Total flux subtracted in 100 components = 0.0331924 Jy ! Clean residual min=-0.012865 max=0.013128 Jy/beam ! Clean residual mean=0.001210 rms=0.003669 Jy/beam ! Combined flux in latest and established models = 1.77358 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 40 model components to the UV plane model. ! The established model now contains 260 components and 1.77358 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.131728Jy sigma=0.001262 ! Fit after self-cal, rms=0.131428Jy sigma=0.001257 ! Inverting map and beam ! Estimated beam: bmin=3.557 mas, bmaj=5.165 mas, bpa=-5.888 degrees ! Estimated noise=1177.77 mJy/beam. ! Added new window around map position (-75.2, 2.4). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0152221 Jy ! Component: 100 - total flux cleaned = 0.0281948 Jy ! Total flux subtracted in 100 components = 0.0281948 Jy ! Clean residual min=-0.012335 max=0.012307 Jy/beam ! Clean residual mean=0.001087 rms=0.003350 Jy/beam ! Combined flux in latest and established models = 1.80177 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 51 model components to the UV plane model. ! The established model now contains 291 components and 1.80177 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.129298Jy sigma=0.001235 ! Fit after self-cal, rms=0.129191Jy sigma=0.001233 ! Inverting map and beam ! Estimated beam: bmin=3.558 mas, bmaj=5.165 mas, bpa=-5.861 degrees ! Estimated noise=1177.72 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 = 0.0126781 Jy ! Component: 100 - total flux cleaned = 0.0239078 Jy ! Total flux subtracted in 100 components = 0.0239078 Jy ! Clean residual min=-0.011581 max=0.011647 Jy/beam ! Clean residual mean=0.000969 rms=0.003107 Jy/beam ! Combined flux in latest and established models = 1.82568 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 313 components and 1.82568 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.127639Jy sigma=0.001217 ! Fit after self-cal, rms=0.127520Jy sigma=0.001216 ! Inverting map print "***********************************" ! *********************************** print "*** Finished Amplitude Self-Cal ***" ! *** Finished Amplitude Self-Cal *** print "***********************************" ! *********************************** save 3C274_S ! Writing UV FITS file: 3C274_S.uvf ! Writing 313 model components to file: 3C274_S.mod ! wwins: Wrote 11 windows to 3C274_S.win ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.558 x 5.165 at -5.861 degrees (North through East) ! Clean map min=-0.011664 max=0.96352 Jy/beam ! Writing clean map to FITS file: 3C274_S.fits ! Writing difmap environment to: 3C274_S.par print "****************************" ! **************************** print "*** Now, make some plots ***" ! *** Now, make some plots *** print "****************************" ! **************************** ![@gonzo_plot 3C274_S] device 3C274_Suv.ps/vps,1,2 ! Attempting to open device: '3C274_Suv.ps/vps' radplot ! Using default options string "m1" uvplot ! Using default options string "" device 3C274_Sim.ps/vps ! Attempting to open device: '3C274_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=3.558 mas, bmaj=5.165 mas, bpa=-5.861 degrees ! Estimated noise=1177.72 mJy/beam. mappl cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.558 x 5.165 at -5.861 degrees (North through East) ! Clean map min=-0.011664 max=0.96352 Jy/beam ![Exited script file: gonzo_plot] ![Exited script file: gonzo5-0.4] quit ! Quitting program ! Log file 3C274_S.log closed on Thu May 8 12:48:17 2008