! Started logfile: /vlbi/uf001/uva//J1826+1831_S_dfm.log on Mon Jan 14 04:37:11 2019 float field_size field_size = 1024 float field_cell field_cell = 0.5000 float taper_size taper_size = 20.0 float freq freq = 2.22000 obs /vlbi/uf001/uva//J1826+1831_S_uva.fits ! Reading UV FITS file: /vlbi/uf001/uva//J1826+1831_S_uva.fits ! AN table 1: 110 integrations on 45 of 45 possible baselines. ! Apparent sampling: 0.870101 visibilities/baseline/integration-bin. ! Found source: J1826+1831 ! ! There are 3 IFs, and a total of 3 channels: ! ! IF Channel Frequency Freq offset Number of Overall IF ! origin at origin per channel channels bandwidth ! ------------------------------------------------------------- (Hz) ! 01 1 2.22e+09 3.2e+07 1 3.2e+07 ! 02 2 2.252e+09 3.2e+07 1 3.2e+07 ! 03 3 2.284e+09 3.2e+07 1 3.2e+07 ! ! Polarization(s): RR ! ! Read 44 lines of history. ! ! Reading 12921 visibilities. select rr, 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ! Restricting channel ranges to the available 3 channels. ! Selecting polarization: RR, channels: 1..3 ! Reading IF 1 channels: 1..1 ! Reading IF 2 channels: 2..2 ! Reading IF 3 channels: 3..3 print "field_size =", field_size ! field_size = 1024 print "field_cell =", field_cell ! field_cell = 0.5 print "taper_size =", taper_size ! taper_size = 20 ![@/opt64/bin/pima_mupet_01.dfm J1826+1831_S] float lim_self lim_self = 120.0 float lim_val lim_va = 1.2 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 print "===============================================================" ! =============================================================== ! print "=== Difmap script: pima_mupet_01.dvm version of 2016.05.19 === " ! === Difmap script: pima_mupet_01.dvm version of 2016.05.19 === ! mapsize field_size, field_cell ! Map grid = 1024x1024 pixels with 0.500x0.500 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 92 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 2. ! A total of 92 telescope corrections were flagged in sub-array 1. ! ! Correcting IF 3. ! A total of 92 telescope corrections were flagged in sub-array 1. ! ! Fit before self-cal, rms=1.076161Jy sigma=22.867783 ! Fit after self-cal, rms=0.712992Jy sigma=15.816051 ! 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=2.825 mas, bmaj=6.341 mas, bpa=-8.567 degrees ! Estimated noise=0.517987 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 = 0.211305 Jy ! Component: 100 - total flux cleaned = 0.290522 Jy ! Total flux subtracted in 100 components = 0.290522 Jy ! Clean residual min=-0.018964 max=0.042305 Jy/beam ! Clean residual mean=-0.000034 rms=0.005670 Jy/beam ! Combined flux in latest and established models = 0.290522 Jy ! Performing phase self-cal ! Adding 13 model components to the UV plane model. ! The established model now contains 13 components and 0.290522 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.151710Jy sigma=2.936826 ! Fit after self-cal, rms=0.151498Jy sigma=2.931570 ! Inverting map ! Added new window around map position (4.5, 1). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0486351 Jy ! Component: 100 - total flux cleaned = 0.082133 Jy ! Total flux subtracted in 100 components = 0.082133 Jy ! Clean residual min=-0.016819 max=0.032243 Jy/beam ! Clean residual mean=-0.000014 rms=0.004448 Jy/beam ! Combined flux in latest and established models = 0.372655 Jy ! Performing phase self-cal ! Adding 33 model components to the UV plane model. ! The established model now contains 41 components and 0.372655 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.123101Jy sigma=2.420630 ! Fit after self-cal, rms=0.122742Jy sigma=2.408541 ! Inverting map ! Added new window around map position (27.5, 3.5). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0321694 Jy ! Component: 100 - total flux cleaned = 0.0557641 Jy ! Total flux subtracted in 100 components = 0.0557641 Jy ! Clean residual min=-0.013008 max=0.024141 Jy/beam ! Clean residual mean=-0.000013 rms=0.003692 Jy/beam ! Combined flux in latest and established models = 0.428419 Jy ! Performing phase self-cal ! Adding 27 model components to the UV plane model. ! The established model now contains 65 components and 0.428419 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.108354Jy sigma=2.140497 ! Fit after self-cal, rms=0.108233Jy sigma=2.135266 ! Inverting map ! Added new window around map position (9.5, 2.5). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0242102 Jy ! Component: 100 - total flux cleaned = 0.0423719 Jy ! Total flux subtracted in 100 components = 0.0423719 Jy ! Clean residual min=-0.011207 max=0.021057 Jy/beam ! Clean residual mean=-0.000007 rms=0.003239 Jy/beam ! Combined flux in latest and established models = 0.470791 Jy ! Performing phase self-cal ! Adding 33 model components to the UV plane model. ! The established model now contains 89 components and 0.470791 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.098055Jy sigma=1.949521 ! Fit after self-cal, rms=0.097990Jy sigma=1.944964 ! Inverting map ! Added new window around map position (63.5, 12.5). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0201261 Jy ! Component: 100 - total flux cleaned = 0.034987 Jy ! Total flux subtracted in 100 components = 0.034987 Jy ! Clean residual min=-0.009739 max=0.015097 Jy/beam ! Clean residual mean=-0.000004 rms=0.002829 Jy/beam ! Combined flux in latest and established models = 0.505778 Jy ! Performing phase self-cal ! Adding 37 model components to the UV plane model. ! The established model now contains 120 components and 0.505778 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.091113Jy sigma=1.808579 ! Fit after self-cal, rms=0.091050Jy sigma=1.805648 ! 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=3.354 mas, bmaj=7.014 mas, bpa=-6.783 degrees ! Estimated noise=0.299827 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 = 0.0216613 Jy ! Component: 100 - total flux cleaned = 0.0390806 Jy ! Component: 150 - total flux cleaned = 0.0540589 Jy ! Component: 200 - total flux cleaned = 0.0671661 Jy ! Total flux subtracted in 200 components = 0.0671661 Jy ! Clean residual min=-0.010547 max=0.020741 Jy/beam ! Clean residual mean=-0.000109 rms=0.003179 Jy/beam ! Combined flux in latest and established models = 0.572945 Jy ! Performing phase self-cal ! Adding 75 model components to the UV plane model. ! The established model now contains 182 components and 0.572945 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.080726Jy sigma=1.624769 ! Fit after self-cal, rms=0.080598Jy sigma=1.620138 ! Inverting map ! Added new window around map position (17, 3.5). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0197446 Jy ! Component: 100 - total flux cleaned = 0.0323105 Jy ! Component: 150 - total flux cleaned = 0.0431291 Jy ! Component: 200 - total flux cleaned = 0.0527612 Jy ! Total flux subtracted in 200 components = 0.0527612 Jy ! Clean residual min=-0.008520 max=0.013497 Jy/beam ! Clean residual mean=-0.000087 rms=0.002515 Jy/beam ! Combined flux in latest and established models = 0.625706 Jy ! Performing phase self-cal ! Adding 58 model components to the UV plane model. ! The established model now contains 227 components and 0.625706 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.073008Jy sigma=1.482709 ! Fit after self-cal, rms=0.072689Jy sigma=1.475479 ! Inverting map print "============== Finished natural weighting clean ==============" ! ============== Finished natural weighting clean ============== ! restore ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.354 x 7.014 at -6.783 degrees (North through East) ! Clean map min=-0.0080538 max=0.2775 Jy/beam gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! Telescope amplitude corrections in sub-array 1: ! BR 1.02 FD 0.98 HN 0.98 KP 0.98 ! LA 0.89 MK 0.96 NL 0.99 OV 1.01 ! PT 0.93 SC 1.00 ! ! ! Correcting IF 2. ! Telescope amplitude corrections in sub-array 1: ! BR 1.08 FD 0.98 HN 1.03 KP 0.98 ! LA 0.91 MK 1.01 NL 1.10 OV 0.97 ! PT 0.93 SC 1.01 ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! BR 0.97 FD 1.00 HN 1.04 KP 0.98 ! LA 0.91 MK 1.07 NL 1.24 OV 1.03 ! PT 0.95 SC 1.04 ! ! ! Fit before self-cal, rms=0.072689Jy sigma=1.475479 ! Fit after self-cal, rms=0.065952Jy sigma=1.318620 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=3.378 mas, bmaj=7.093 mas, bpa=-6.667 degrees ! Estimated noise=0.299775 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 (58.5, 10). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0100825 Jy ! Component: 100 - total flux cleaned = 0.0169734 Jy ! Component: 150 - total flux cleaned = 0.0226257 Jy ! Component: 200 - total flux cleaned = 0.0274555 Jy ! Total flux subtracted in 200 components = 0.0274555 Jy ! Clean residual min=-0.005894 max=0.009607 Jy/beam ! Clean residual mean=-0.000030 rms=0.001508 Jy/beam ! Combined flux in latest and established models = 0.653161 Jy ! Performing phase self-cal ! Adding 48 model components to the UV plane model. ! The established model now contains 266 components and 0.653161 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.063726Jy sigma=1.272170 ! Fit after self-cal, rms=0.063621Jy sigma=1.269988 ! Inverting map ! Added new window around map position (40.5, 7.5). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00788018 Jy ! Component: 100 - total flux cleaned = 0.0125421 Jy ! Component: 150 - total flux cleaned = 0.0165459 Jy ! Component: 200 - total flux cleaned = 0.0201238 Jy ! Total flux subtracted in 200 components = 0.0201238 Jy ! Clean residual min=-0.004890 max=0.005080 Jy/beam ! Clean residual mean=-0.000016 rms=0.001298 Jy/beam ! Combined flux in latest and established models = 0.673285 Jy ! Performing phase self-cal ! Adding 48 model components to the UV plane model. ! The established model now contains 302 components and 0.673285 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.062324Jy sigma=1.241422 ! Fit after self-cal, rms=0.062276Jy sigma=1.240386 ! 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. ! ! Fit before self-cal, rms=0.062276Jy sigma=1.240386 ! Fit after self-cal, rms=0.058830Jy sigma=1.178524 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=3.384 mas, bmaj=7.099 mas, bpa=-6.755 degrees ! Estimated noise=0.299078 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00273865 Jy ! Component: 100 - total flux cleaned = 0.00489165 Jy ! Component: 150 - total flux cleaned = 0.00696029 Jy ! Component: 200 - total flux cleaned = 0.00869414 Jy ! Total flux subtracted in 200 components = 0.00869414 Jy ! Clean residual min=-0.003476 max=0.004619 Jy/beam ! Clean residual mean=-0.000005 rms=0.000877 Jy/beam ! Combined flux in latest and established models = 0.681979 Jy selfcal ! Performing phase self-cal ! Adding 44 model components to the UV plane model. ! The established model now contains 339 components and 0.681979 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.058372Jy sigma=1.168561 ! Fit after self-cal, rms=0.058354Jy sigma=1.168120 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) ! Added new window around map position (-7, 4). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00441827 Jy ! Component: 100 - total flux cleaned = 0.00679276 Jy ! Component: 150 - total flux cleaned = 0.00863853 Jy ! Component: 200 - total flux cleaned = 0.00996333 Jy ! Total flux subtracted in 200 components = 0.00996333 Jy ! Clean residual min=-0.002856 max=0.003122 Jy/beam ! Clean residual mean=0.000002 rms=0.000756 Jy/beam ! Combined flux in latest and established models = 0.691943 Jy ! Performing phase self-cal ! Adding 46 model components to the UV plane model. ! The established model now contains 369 components and 0.691943 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.057895Jy sigma=1.158202 ! Fit after self-cal, rms=0.057840Jy sigma=1.157437 ! 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. ! ! Fit before self-cal, rms=0.057840Jy sigma=1.157437 ! Fit after self-cal, rms=0.057543Jy sigma=1.155476 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=3.389 mas, bmaj=7.095 mas, bpa=-6.673 degrees ! Estimated noise=0.29884 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00214048 Jy ! Component: 100 - total flux cleaned = 0.00397896 Jy ! Component: 150 - total flux cleaned = 0.00575295 Jy ! Component: 200 - total flux cleaned = 0.00736599 Jy ! Total flux subtracted in 200 components = 0.00736599 Jy ! Clean residual min=-0.002776 max=0.002832 Jy/beam ! Clean residual mean=-0.000001 rms=0.000654 Jy/beam ! Combined flux in latest and established models = 0.699309 Jy selfcal ! Performing phase self-cal ! Adding 47 model components to the UV plane model. ! The established model now contains 392 components and 0.699309 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.057269Jy sigma=1.149743 ! Fit after self-cal, rms=0.057240Jy sigma=1.149364 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) ! Added new window around map position (99.5, -15). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00219289 Jy ! Component: 100 - total flux cleaned = 0.00336125 Jy ! Component: 150 - total flux cleaned = 0.00446765 Jy ! Component: 200 - total flux cleaned = 0.0054232 Jy ! Total flux subtracted in 200 components = 0.0054232 Jy ! Clean residual min=-0.002346 max=0.002554 Jy/beam ! Clean residual mean=0.000003 rms=0.000593 Jy/beam ! Combined flux in latest and established models = 0.704732 Jy ! Performing phase self-cal ! Adding 45 model components to the UV plane model. ! The established model now contains 415 components and 0.704732 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.057033Jy sigma=1.145272 ! Fit after self-cal, rms=0.057018Jy sigma=1.145090 ! Inverting map ! Added new window around map position (29, -27.5). ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00177131 Jy ! Component: 100 - total flux cleaned = 0.00279601 Jy ! Component: 150 - total flux cleaned = 0.00373399 Jy ! Component: 200 - total flux cleaned = 0.00466351 Jy ! Total flux subtracted in 200 components = 0.00466351 Jy ! Clean residual min=-0.002131 max=0.002200 Jy/beam ! Clean residual mean=0.000002 rms=0.000543 Jy/beam ! Combined flux in latest and established models = 0.709395 Jy ! Performing phase self-cal ! Adding 50 model components to the UV plane model. ! The established model now contains 440 components and 0.709395 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.056867Jy sigma=1.142036 ! Fit after self-cal, rms=0.056856Jy sigma=1.141907 ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 20 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. ! ! Fit before self-cal, rms=0.056856Jy sigma=1.141907 ! Fit after self-cal, rms=0.056598Jy sigma=1.141034 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=7.271 mas, bmaj=10.15 mas, bpa=-5.998 degrees ! Estimated noise=0.379678 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00286914 Jy ! Component: 100 - total flux cleaned = 0.00503625 Jy ! Component: 150 - total flux cleaned = 0.0068831 Jy ! Component: 200 - total flux cleaned = 0.00851729 Jy ! Total flux subtracted in 200 components = 0.00851729 Jy ! Clean residual min=-0.002000 max=0.002812 Jy/beam ! Clean residual mean=0.000003 rms=0.000680 Jy/beam ! Combined flux in latest and established models = 0.717913 Jy selfcal ! Performing phase self-cal ! Adding 53 model components to the UV plane model. ! The established model now contains 483 components and 0.717913 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.056475Jy sigma=1.138838 ! Fit after self-cal, rms=0.056464Jy sigma=1.138662 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 = 0.00144913 Jy ! Component: 100 - total flux cleaned = 0.00253659 Jy ! Component: 150 - total flux cleaned = 0.00341364 Jy ! Component: 200 - total flux cleaned = 0.00402906 Jy ! Total flux subtracted in 200 components = 0.00402906 Jy ! Clean residual min=-0.001915 max=0.002572 Jy/beam ! Clean residual mean=0.000007 rms=0.000632 Jy/beam ! Combined flux in latest and established models = 0.721942 Jy ! Performing phase self-cal ! Adding 62 model components to the UV plane model. ! The established model now contains 528 components and 0.721942 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.056411Jy sigma=1.137842 ! Fit after self-cal, rms=0.056406Jy sigma=1.137767 ! 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=3.391 mas, bmaj=7.092 mas, bpa=-6.649 degrees ! Estimated noise=0.298312 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.391 x 7.092 at -6.649 degrees (North through East) ! Clean map min=-0.0017001 max=0.27489 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 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=2.857 mas, bmaj=6.396 mas, bpa=-8.459 degrees ! Estimated noise=0.515657 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.209026 Jy ! Component: 100 - total flux cleaned = 0.2883 Jy ! Component: 150 - total flux cleaned = 0.337396 Jy ! Component: 200 - total flux cleaned = 0.373737 Jy ! Total flux subtracted in 200 components = 0.373737 Jy ! Clean residual min=-0.013876 max=0.021274 Jy/beam ! Clean residual mean=-0.000029 rms=0.003787 Jy/beam ! Combined flux in latest and established models = 0.373737 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 38 model components to the UV plane model. ! The established model now contains 38 components and 0.373737 Jy ! Inverting map and beam ! Estimated beam: bmin=3.391 mas, bmaj=7.092 mas, bpa=-6.649 degrees ! Estimated noise=0.298312 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 = 0.03977 Jy ! Component: 100 - total flux cleaned = 0.0708296 Jy ! Component: 150 - total flux cleaned = 0.0970688 Jy ! Component: 200 - total flux cleaned = 0.119444 Jy ! Total flux subtracted in 200 components = 0.119444 Jy ! Clean residual min=-0.011622 max=0.013846 Jy/beam ! Clean residual mean=-0.000119 rms=0.003133 Jy/beam ! Combined flux in latest and established models = 0.49318 Jy ! Adding 75 model components to the UV plane model. ! The established model now contains 106 components and 0.49318 Jy ! Inverting map ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0192212 Jy ! Component: 100 - total flux cleaned = 0.0359269 Jy ! Component: 150 - total flux cleaned = 0.0506311 Jy ! Component: 200 - total flux cleaned = 0.0637503 Jy ! Total flux subtracted in 200 components = 0.0637503 Jy ! Clean residual min=-0.007999 max=0.008472 Jy/beam ! Clean residual mean=-0.000084 rms=0.002164 Jy/beam ! Combined flux in latest and established models = 0.556931 Jy ! Adding 79 model components to the UV plane model. ! The established model now contains 167 components and 0.556931 Jy ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 20 mega-wavelengths. clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=7.271 mas, bmaj=10.15 mas, bpa=-5.998 degrees ! Estimated noise=0.379678 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.022421 Jy ! Component: 100 - total flux cleaned = 0.0400281 Jy ! Component: 150 - total flux cleaned = 0.054457 Jy ! Component: 200 - total flux cleaned = 0.066686 Jy ! Total flux subtracted in 200 components = 0.066686 Jy ! Clean residual min=-0.007841 max=0.008439 Jy/beam ! Clean residual mean=-0.000109 rms=0.002409 Jy/beam ! Combined flux in latest and established models = 0.623617 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 = 0.0106141 Jy ! Component: 100 - total flux cleaned = 0.0198983 Jy ! Component: 150 - total flux cleaned = 0.0280602 Jy ! Component: 200 - total flux cleaned = 0.0352631 Jy ! Total flux subtracted in 200 components = 0.0352631 Jy ! Clean residual min=-0.005044 max=0.005458 Jy/beam ! Clean residual mean=-0.000065 rms=0.001615 Jy/beam ! Combined flux in latest and established models = 0.65888 Jy ! Adding 189 model components to the UV plane model. ! The established model now contains 335 components and 0.65888 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=3.391 mas, bmaj=7.092 mas, bpa=-6.649 degrees ! Estimated noise=0.298312 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00505533 Jy ! Component: 100 - total flux cleaned = 0.00932496 Jy ! Component: 150 - total flux cleaned = 0.013153 Jy ! Component: 200 - total flux cleaned = 0.0166424 Jy ! Total flux subtracted in 200 components = 0.0166424 Jy ! Clean residual min=-0.003136 max=0.003318 Jy/beam ! Clean residual mean=-0.000022 rms=0.000792 Jy/beam ! Combined flux in latest and established models = 0.675523 Jy selfcal ! Performing phase self-cal ! Adding 38 model components to the UV plane model. ! The established model now contains 369 components and 0.675523 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Fit before self-cal, rms=0.057533Jy sigma=1.161131 ! Fit after self-cal, rms=0.057405Jy sigma=1.158557 wmodel J1826+1831_S_map.mod ! Writing 369 model components to file: J1826+1831_S_map.mod wobs J1826+1831_S_uvs.fits ! Writing UV FITS file: J1826+1831_S_uvs.fits wwins J1826+1831_S_map.win ! wwins: Wrote 11 windows to J1826+1831_S_map.win x = (field_size-8) * field_cell / 4 addwin -x,x,-x,x clean (field_size*4),0.01 ! Inverting map ! clean: niter=4096 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = -0.000303831 Jy ! Component: 100 - total flux cleaned = -4.87586e-05 Jy ! Component: 150 - total flux cleaned = -9.75273e-05 Jy ! Component: 200 - total flux cleaned = -0.000192614 Jy ! Component: 250 - total flux cleaned = -0.000194402 Jy ! Component: 300 - total flux cleaned = -0.000238224 Jy ! Component: 350 - total flux cleaned = -0.000236933 Jy ! Component: 400 - total flux cleaned = -0.000113809 Jy ! Component: 450 - total flux cleaned = -0.000114347 Jy ! Component: 500 - total flux cleaned = -3.63613e-05 Jy ! Component: 550 - total flux cleaned = -7.35955e-05 Jy ! Component: 600 - total flux cleaned = -3.5346e-05 Jy ! Component: 650 - total flux cleaned = 3.75089e-05 Jy ! Component: 700 - total flux cleaned = -3.33634e-05 Jy ! Component: 750 - total flux cleaned = -3.36185e-05 Jy ! Component: 800 - total flux cleaned = -0.000102277 Jy ! Component: 850 - total flux cleaned = -0.000237271 Jy ! Component: 900 - total flux cleaned = -0.000270617 Jy ! Component: 950 - total flux cleaned = -0.000303152 Jy ! Component: 1000 - total flux cleaned = -0.00036646 Jy ! Component: 1050 - total flux cleaned = -0.000366094 Jy ! Component: 1100 - total flux cleaned = -0.000396768 Jy ! Component: 1150 - total flux cleaned = -0.000487729 Jy ! Component: 1200 - total flux cleaned = -0.000428146 Jy ! Component: 1250 - total flux cleaned = -0.000428519 Jy ! Component: 1300 - total flux cleaned = -0.000515358 Jy ! Component: 1350 - total flux cleaned = -0.000430387 Jy ! Component: 1400 - total flux cleaned = -0.000515711 Jy ! Component: 1450 - total flux cleaned = -0.00057114 Jy ! Component: 1500 - total flux cleaned = -0.000597797 Jy ! Component: 1550 - total flux cleaned = -0.000490718 Jy ! Component: 1600 - total flux cleaned = -0.000623382 Jy ! Component: 1650 - total flux cleaned = -0.000753396 Jy ! Component: 1700 - total flux cleaned = -0.000676582 Jy ! Component: 1750 - total flux cleaned = -0.000677568 Jy ! Component: 1800 - total flux cleaned = -0.000753322 Jy ! Component: 1850 - total flux cleaned = -0.000827597 Jy ! Component: 1900 - total flux cleaned = -0.000924978 Jy ! Component: 1950 - total flux cleaned = -0.0009006 Jy ! Component: 2000 - total flux cleaned = -0.000900622 Jy ! Component: 2050 - total flux cleaned = -0.000923694 Jy ! Component: 2100 - total flux cleaned = -0.000900768 Jy ! Component: 2150 - total flux cleaned = -0.000877769 Jy ! Component: 2200 - total flux cleaned = -0.000877785 Jy ! Component: 2250 - total flux cleaned = -0.000855396 Jy ! Component: 2300 - total flux cleaned = -0.000789904 Jy ! Component: 2350 - total flux cleaned = -0.000963296 Jy ! Component: 2400 - total flux cleaned = -0.000813219 Jy ! Component: 2450 - total flux cleaned = -0.000855886 Jy ! Component: 2500 - total flux cleaned = -0.000814081 Jy ! Component: 2550 - total flux cleaned = -0.000793706 Jy ! Component: 2600 - total flux cleaned = -0.000752893 Jy ! Component: 2650 - total flux cleaned = -0.00077319 Jy ! Component: 2700 - total flux cleaned = -0.000793514 Jy ! Component: 2750 - total flux cleaned = -0.000714292 Jy ! Component: 2800 - total flux cleaned = -0.000714137 Jy ! Component: 2850 - total flux cleaned = -0.000714182 Jy ! Component: 2900 - total flux cleaned = -0.000637763 Jy ! Component: 2950 - total flux cleaned = -0.000599671 Jy ! Component: 3000 - total flux cleaned = -0.00058106 Jy ! Component: 3050 - total flux cleaned = -0.000506951 Jy ! Component: 3100 - total flux cleaned = -0.000470395 Jy ! Component: 3150 - total flux cleaned = -0.00041608 Jy ! Component: 3200 - total flux cleaned = -0.000452146 Jy ! Component: 3250 - total flux cleaned = -0.000451924 Jy ! Component: 3300 - total flux cleaned = -0.00036429 Jy ! Component: 3350 - total flux cleaned = -0.000312163 Jy ! Component: 3400 - total flux cleaned = -0.000294657 Jy ! Component: 3450 - total flux cleaned = -0.000294752 Jy ! Component: 3500 - total flux cleaned = -0.000226998 Jy ! Component: 3550 - total flux cleaned = -0.000243832 Jy ! Component: 3600 - total flux cleaned = -0.000227186 Jy ! Component: 3650 - total flux cleaned = -0.000276112 Jy ! Component: 3700 - total flux cleaned = -0.000243644 Jy ! Component: 3750 - total flux cleaned = -0.000211762 Jy ! Component: 3800 - total flux cleaned = -0.000195868 Jy ! Component: 3850 - total flux cleaned = -0.000227329 Jy ! Component: 3900 - total flux cleaned = -0.000164891 Jy ! Component: 3950 - total flux cleaned = -0.000180338 Jy ! Component: 4000 - total flux cleaned = -0.00018021 Jy ! Component: 4050 - total flux cleaned = -0.000149875 Jy ! Total flux subtracted in 4096 components = -0.000225316 Jy ! Clean residual min=-0.000751 max=0.000938 Jy/beam ! Clean residual mean=-0.000007 rms=0.000296 Jy/beam ! Combined flux in latest and established models = 0.675297 Jy keep ! Adding 331 model components to the UV plane model. ! The established model now contains 694 components and 0.675297 Jy ![Exited script file: /opt64/bin/pima_mupet_01.dfm] wmap /vlbi/uf001/uva//J1826+1831_S_map.fits ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 3.391 x 7.092 at -6.649 degrees (North through East) ! Clean map min=-0.0019424 max=0.27498 Jy/beam ! Writing clean map to FITS file: /vlbi/uf001/uva//J1826+1831_S_map.fits wmodel /vlbi/uf001/uva//J1826+1831_S_map.mod ! Writing 694 model components to file: /vlbi/uf001/uva//J1826+1831_S_map.mod wobs /vlbi/uf001/uva//J1826+1831_S_uvs.fits ! Writing UV FITS file: /vlbi/uf001/uva//J1826+1831_S_uvs.fits wwins /vlbi/uf001/uva//J1826+1831_S_map.win ! wwins: Wrote 12 windows to /vlbi/uf001/uva//J1826+1831_S_map.win float peak_flux peak_flux = peak(flux,max) print "The peak flux is", peak_flux ! The peak flux is 0.274984 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.00029176 loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.318302 0.318302 0.636604 1.27321 2.54642 5.09283 10.1857 20.3713 40.7427 81.4854 print "clev= ", int(3*image_rms*10000)/10000 ! clev= 0.0008 print "peak= ", int(1000*peak_flux)/1000 ! peak= 0.274 print "dyn_range= ", int(1000*peak_flux/image_rms)/1000 ! dyn_range= 942.5 quit ! Quitting program ! Log file /vlbi/uf001/uva//J1826+1831_S_dfm.log closed on Mon Jan 14 04:37:17 2019