! Started logfile: J1957-3845_X_2001_04_09_pus_uvs.log on Tue Oct 2 11:23:03 2007 obs J1957-3845_X_2001_04_09_pus_uva.fits ! Reading UV FITS file: J1957-3845_X_2001_04_09_pus_uva.fits ! AN table 1: 26 integrations on 190 of 190 possible baselines. ! AN table 2: 11 integrations on 190 of 190 possible baselines. ! AN table 3: 79 integrations on 190 of 190 possible baselines. ! Apparent sampling: 0.0664247 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: J1957-3845 ! ! 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 8.40997e+09 8e+06 1 8e+06 ! 02 2 8.47997e+09 8e+06 1 8e+06 ! 03 3 8.79497e+09 8e+06 1 8e+06 ! 04 4 8.89997e+09 8e+06 1 8e+06 ! ! Polarization(s): RR ! ! Read 1926 lines of history. ! ! Reading 5856 visibilities. select I ! Polarization I is unavailable. ! 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 print "field_size =",field_size ! field_size = 512 print "field_cell =",field_cell ! field_cell = 0.2 print "taper_size =",taper_size ! taper_size = 70 ![@muppet J1957-3845_X_2001_04_09_pus] 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 mapsize field_size, field_cell ! Map grid = 512x512 pixels with 0.200x0.200 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 493 telescope corrections were flagged in sub-array 1. ! A total of 220 telescope corrections were flagged in sub-array 2. ! A total of 1115 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 2. ! A total of 493 telescope corrections were flagged in sub-array 1. ! A total of 220 telescope corrections were flagged in sub-array 2. ! A total of 1115 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 3. ! A total of 493 telescope corrections were flagged in sub-array 1. ! A total of 220 telescope corrections were flagged in sub-array 2. ! A total of 1115 telescope corrections were flagged in sub-array 3. ! ! Correcting IF 4. ! A total of 493 telescope corrections were flagged in sub-array 1. ! A total of 220 telescope corrections were flagged in sub-array 2. ! A total of 1115 telescope corrections were flagged in sub-array 3. ! ! Fit before self-cal, rms=0.923083Jy sigma=0.008218 ! Fit after self-cal, rms=0.262500Jy sigma=0.001937 ! 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=0.6687 mas, bmaj=1.735 mas, bpa=-11.36 degrees ! Estimated noise=2035.2 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 = 0.666387 Jy ! Component: 100 - total flux cleaned = 0.827416 Jy ! Total flux subtracted in 100 components = 0.827416 Jy ! Clean residual min=-0.046020 max=0.092203 Jy/beam ! Clean residual mean=0.000139 rms=0.014012 Jy/beam ! Combined flux in latest and established models = 0.827416 Jy ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 9 components and 0.827416 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.275566Jy sigma=0.002527 ! Fit after self-cal, rms=0.275342Jy sigma=0.002526 ! Inverting map ! Added new window around map position (-1, 1.2). ! clean: niter=100 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0932981 Jy ! Component: 100 - total flux cleaned = 0.150745 Jy ! Total flux subtracted in 100 components = 0.150745 Jy ! Clean residual min=-0.036484 max=0.061622 Jy/beam ! Clean residual mean=0.000102 rms=0.009577 Jy/beam ! Combined flux in latest and established models = 0.978161 Jy ! Performing phase self-cal ! Adding 18 model components to the UV plane model. ! The established model now contains 25 components and 0.978161 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.218194Jy sigma=0.001819 ! Fit after self-cal, rms=0.215154Jy sigma=0.001789 ! 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=0.9364 mas, bmaj=2.843 mas, bpa=-16.23 degrees ! Estimated noise=1066.83 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 = 0.0789398 Jy ! Component: 100 - total flux cleaned = 0.112827 Jy ! Component: 150 - total flux cleaned = 0.128758 Jy ! Component: 200 - total flux cleaned = 0.136608 Jy ! Total flux subtracted in 200 components = 0.136608 Jy ! Clean residual min=-0.017027 max=0.021559 Jy/beam ! Clean residual mean=0.000052 rms=0.006817 Jy/beam ! Combined flux in latest and established models = 1.11477 Jy ! Performing phase self-cal ! Adding 23 model components to the UV plane model. ! The established model now contains 38 components and 1.11477 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.198455Jy sigma=0.001432 ! Fit after self-cal, rms=0.198090Jy sigma=0.001428 ! Inverting map print "************** FINISHED NATURAL WEIGHTING CLEAN **************" ! ************** FINISHED NATURAL WEIGHTING CLEAN ************** ! gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 27 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! A total of 9 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.97 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 0.98 KP 1.06 ! LA 1.00 MA 1.00* MC 1.00* MK 0.97 ! NL 1.05 NY 1.00* OV 0.97 PT 1.00 ! SC 0.99 TS 1.00* WF 1.44 WZ 1.00* ! ! ! Correcting IF 2. ! A total of 27 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! A total of 9 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.97 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 0.93 KP 1.08 ! LA 1.00 MA 1.00* MC 1.00* MK 1.03 ! NL 1.00 NY 1.00* OV 0.98 PT 0.99 ! SC 1.02 TS 1.00* WF 1.40 WZ 1.00* ! ! ! Correcting IF 3. ! A total of 27 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! A total of 9 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.97 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 0.93 KP 0.97 ! LA 1.01 MA 1.00* MC 1.00* MK 0.98 ! NL 1.00 NY 1.00* OV 0.95 PT 0.94 ! SC 0.99 TS 1.00* WF 1.33 WZ 1.00* ! ! ! Correcting IF 4. ! A total of 27 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! Telescope amplitude corrections in sub-array 2: ! BR 0.00* FD 0.00* GC 0.00* GG 0.00* ! HH 0.00* HN 0.00* KK 0.00* KP 0.00* ! LA 0.00* MA 0.00* MC 0.00* MK 0.00* ! NL 0.00* NY 0.00* OV 0.00* PT 0.00* ! SC 0.00* TS 0.00* WF 0.00* WZ 0.00* ! ! A total of 9 telescope corrections were flagged in sub-array 3. ! Telescope amplitude corrections in sub-array 3: ! BR 1.00* FD 0.97 GC 1.00* GG 1.00* ! HH 1.00* HN 1.00* KK 0.94 KP 1.19 ! LA 1.00 MA 1.00* MC 1.00* MK 1.02 ! NL 1.00 NY 1.00* OV 0.92 PT 0.99 ! SC 0.98 TS 1.00* WF 1.42 WZ 1.00* ! ! ! Fit before self-cal, rms=0.198090Jy sigma=0.001428 ! Fit after self-cal, rms=0.189414Jy sigma=0.001283 dynam = dynam - 0.5 flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=0.9348 mas, bmaj=3.285 mas, bpa=-16.28 degrees ! Estimated noise=1070.3 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 = -0.00643718 Jy ! Component: 100 - total flux cleaned = -0.00713117 Jy ! Component: 150 - total flux cleaned = -0.00768899 Jy ! Component: 200 - total flux cleaned = -0.00797028 Jy ! Total flux subtracted in 200 components = -0.00797028 Jy ! Clean residual min=-0.015055 max=0.013915 Jy/beam ! Clean residual mean=-0.000165 rms=0.004829 Jy/beam ! Combined flux in latest and established models = 1.1068 Jy ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 45 components and 1.1068 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.188943Jy sigma=0.001282 ! Fit after self-cal, rms=0.189166Jy sigma=0.001282 ! 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. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.189166Jy sigma=0.001282 ! Fit after self-cal, rms=0.181947Jy sigma=0.001206 dynam = dynam - 0.75 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=0.9367 mas, bmaj=3.283 mas, bpa=-16.28 degrees ! Estimated noise=1069.76 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00154409 Jy ! Component: 100 - total flux cleaned = -0.00180997 Jy ! Component: 150 - total flux cleaned = -0.00192734 Jy ! Component: 200 - total flux cleaned = -0.00202666 Jy ! Total flux subtracted in 200 components = -0.00202666 Jy ! Clean residual min=-0.005687 max=0.004723 Jy/beam ! Clean residual mean=-0.000105 rms=0.001343 Jy/beam ! Combined flux in latest and established models = 1.10477 Jy selfcal ! Performing phase self-cal ! Adding 10 model components to the UV plane model. ! The established model now contains 53 components and 1.10477 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.181761Jy sigma=0.001204 ! Fit after self-cal, rms=0.181915Jy sigma=0.001204 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 = -6.9791e-08 Jy ! Component: 100 - total flux cleaned = -1.78505e-06 Jy ! Component: 150 - total flux cleaned = -7.43365e-05 Jy ! Component: 200 - total flux cleaned = -7.39013e-05 Jy ! Total flux subtracted in 200 components = -7.39013e-05 Jy ! Clean residual min=-0.005326 max=0.004565 Jy/beam ! Clean residual mean=-0.000106 rms=0.001305 Jy/beam ! Combined flux in latest and established models = 1.1047 Jy ! Performing phase self-cal ! Adding 7 model components to the UV plane model. ! The established model now contains 53 components and 1.1047 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.181849Jy sigma=0.001203 ! Fit after self-cal, rms=0.181844Jy sigma=0.001203 ! 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. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.181844Jy sigma=0.001203 ! Fit after self-cal, rms=0.183229Jy sigma=0.001202 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=0.9376 mas, bmaj=3.282 mas, bpa=-16.32 degrees ! Estimated noise=1069.44 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00106802 Jy ! Component: 100 - total flux cleaned = -0.00125272 Jy ! Component: 150 - total flux cleaned = -0.00133279 Jy ! Component: 200 - total flux cleaned = -0.00133278 Jy ! Total flux subtracted in 200 components = -0.00133278 Jy ! Clean residual min=-0.005023 max=0.003923 Jy/beam ! Clean residual mean=-0.000081 rms=0.001191 Jy/beam ! Combined flux in latest and established models = 1.10337 Jy selfcal ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 58 components and 1.10337 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.183139Jy sigma=0.001202 ! Fit after self-cal, rms=0.183154Jy sigma=0.001202 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 = -6.72602e-06 Jy ! Component: 100 - total flux cleaned = -1.27656e-05 Jy ! Component: 150 - total flux cleaned = -6.60951e-05 Jy ! Component: 200 - total flux cleaned = -6.57176e-05 Jy ! Total flux subtracted in 200 components = -6.57176e-05 Jy ! Clean residual min=-0.004840 max=0.003783 Jy/beam ! Clean residual mean=-0.000081 rms=0.001170 Jy/beam ! Combined flux in latest and established models = 1.1033 Jy ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 60 components and 1.1033 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.183113Jy sigma=0.001201 ! Fit after self-cal, rms=0.183112Jy sigma=0.001201 ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 70 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. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.183112Jy sigma=0.001201 ! Fit after self-cal, rms=0.183542Jy sigma=0.001201 clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=2.641 mas, bmaj=9.879 mas, bpa=-5.525 degrees ! Estimated noise=1232.5 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000664078 Jy ! Component: 100 - total flux cleaned = -0.000660721 Jy ! Component: 150 - total flux cleaned = -0.000658782 Jy ! Component: 200 - total flux cleaned = -0.000656431 Jy ! Total flux subtracted in 200 components = -0.000656431 Jy ! Clean residual min=-0.003797 max=0.002995 Jy/beam ! Clean residual mean=-0.000110 rms=0.001250 Jy/beam ! Combined flux in latest and established models = 1.10264 Jy selfcal ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 64 components and 1.10264 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.183529Jy sigma=0.001201 ! Fit after self-cal, rms=0.183533Jy sigma=0.001201 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 = 0.00010637 Jy ! Component: 100 - total flux cleaned = 7.95041e-05 Jy ! Component: 150 - total flux cleaned = 5.55752e-05 Jy ! Component: 200 - total flux cleaned = 9.73768e-06 Jy ! Total flux subtracted in 200 components = 9.73768e-06 Jy ! Clean residual min=-0.003783 max=0.002970 Jy/beam ! Clean residual mean=-0.000110 rms=0.001248 Jy/beam ! Combined flux in latest and established models = 1.10265 Jy ! Performing phase self-cal ! Adding 7 model components to the UV plane model. ! The established model now contains 66 components and 1.10265 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.183526Jy sigma=0.001201 ! Fit after self-cal, rms=0.183524Jy sigma=0.001201 ! 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=0.9384 mas, bmaj=3.282 mas, bpa=-16.34 degrees ! Estimated noise=1069.24 mJy/beam. ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.9384 x 3.282 at -16.34 degrees (North through East) ! Clean map min=-0.0043434 max=0.91934 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 ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.183524Jy sigma=0.001201 ! Fit after self-cal, rms=0.175352Jy sigma=0.001076 ! Inverting map and beam ! Estimated beam: bmin=0.9386 mas, bmaj=3.284 mas, bpa=-16.33 degrees ! Estimated noise=1068.61 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00125414 Jy ! Component: 100 - total flux cleaned = -0.00131621 Jy ! Component: 150 - total flux cleaned = -0.00131917 Jy ! Component: 200 - total flux cleaned = -0.00136979 Jy ! Total flux subtracted in 200 components = -0.00136979 Jy ! Clean residual min=-0.004766 max=0.003630 Jy/beam ! Clean residual mean=-0.000065 rms=0.001097 Jy/beam ! Combined flux in latest and established models = 1.10128 Jy ! Performing phase self-cal ! Adding 6 model components to the UV plane model. ! The established model now contains 66 components and 1.10128 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.175299Jy sigma=0.001075 ! Fit after self-cal, rms=0.175297Jy sigma=0.001075 ! Inverting map ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.00010907 Jy ! Component: 100 - total flux cleaned = -6.65773e-05 Jy ! Component: 150 - total flux cleaned = -0.000103911 Jy ! Component: 200 - total flux cleaned = -7.00666e-05 Jy ! Total flux subtracted in 200 components = -7.00666e-05 Jy ! Clean residual min=-0.004624 max=0.003549 Jy/beam ! Clean residual mean=-0.000066 rms=0.001086 Jy/beam ! Combined flux in latest and established models = 1.10121 Jy ! Performing phase self-cal ! Adding 12 model components to the UV plane model. ! The established model now contains 68 components and 1.10121 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.175273Jy sigma=0.001075 ! Fit after self-cal, rms=0.175273Jy sigma=0.001075 ! Inverting map ! Performing amp+phase self-cal ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.175273Jy sigma=0.001075 ! Fit after self-cal, rms=0.175607Jy sigma=0.001075 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=0.6622 mas, bmaj=2.203 mas, bpa=-11.64 degrees ! Estimated noise=2067.33 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.681376 Jy ! Component: 100 - total flux cleaned = 0.850145 Jy ! Component: 150 - total flux cleaned = 0.935947 Jy ! Component: 200 - total flux cleaned = 0.988923 Jy ! Total flux subtracted in 200 components = 0.988923 Jy ! Clean residual min=-0.014899 max=0.030713 Jy/beam ! Clean residual mean=0.000083 rms=0.005105 Jy/beam ! Combined flux in latest and established models = 0.988922 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 31 model components to the UV plane model. ! The established model now contains 31 components and 0.988922 Jy ! Inverting map and beam ! Estimated beam: bmin=0.9391 mas, bmaj=3.284 mas, bpa=-16.35 degrees ! Estimated noise=1068.38 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 = 0.0581704 Jy ! Component: 100 - total flux cleaned = 0.0837415 Jy ! Component: 150 - total flux cleaned = 0.0964653 Jy ! Component: 200 - total flux cleaned = 0.103022 Jy ! Total flux subtracted in 200 components = 0.103022 Jy ! Clean residual min=-0.005181 max=0.004715 Jy/beam ! Clean residual mean=-0.000051 rms=0.001297 Jy/beam ! Combined flux in latest and established models = 1.09194 Jy ! Adding 35 model components to the UV plane model. ! The established model now contains 49 components and 1.09194 Jy ! Inverting map uvtaper 0.3,taper_size ! Gaussian taper: value 0.3 at UV radius = 70 mega-wavelengths. clean clean_niter,clean_gain ! Inverting map and beam ! Estimated beam: bmin=2.642 mas, bmaj=9.891 mas, bpa=-5.543 degrees ! Estimated noise=1230.27 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.00425332 Jy ! Component: 100 - total flux cleaned = 0.00592847 Jy ! Component: 150 - total flux cleaned = 0.00611768 Jy ! Component: 200 - total flux cleaned = 0.0062504 Jy ! Total flux subtracted in 200 components = 0.0062504 Jy ! Clean residual min=-0.003388 max=0.002925 Jy/beam ! Clean residual mean=-0.000095 rms=0.001189 Jy/beam ! Combined flux in latest and established models = 1.09819 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 = 9.04891e-05 Jy ! Component: 100 - total flux cleaned = 0.000175219 Jy ! Component: 150 - total flux cleaned = 0.000280859 Jy ! Component: 200 - total flux cleaned = 0.000354661 Jy ! Total flux subtracted in 200 components = 0.000354661 Jy ! Clean residual min=-0.003407 max=0.002717 Jy/beam ! Clean residual mean=-0.000095 rms=0.001174 Jy/beam ! Combined flux in latest and established models = 1.09855 Jy ! Adding 11 model components to the UV plane model. ! The established model now contains 57 components and 1.09855 Jy ! Inverting map uvtaper 0,0 ! No UV-taper is currently set. clean ! Inverting map and beam ! Estimated beam: bmin=0.9391 mas, bmaj=3.284 mas, bpa=-16.35 degrees ! Estimated noise=1068.38 mJy/beam. ! clean: niter=200 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = -0.000732902 Jy ! Component: 100 - total flux cleaned = -0.000512138 Jy ! Component: 150 - total flux cleaned = -0.000446166 Jy ! Component: 200 - total flux cleaned = -0.000388625 Jy ! Total flux subtracted in 200 components = -0.000388625 Jy ! Clean residual min=-0.005230 max=0.003575 Jy/beam ! Clean residual mean=-0.000056 rms=0.001130 Jy/beam ! Combined flux in latest and established models = 1.09816 Jy selfcal ! Performing phase self-cal ! Adding 9 model components to the UV plane model. ! The established model now contains 64 components and 1.09816 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.175661Jy sigma=0.001076 ! Fit after self-cal, rms=0.175589Jy sigma=0.001075 wmodel J1957-3845_X_2001_04_09_pus_map.mod ! Writing 64 model components to file: J1957-3845_X_2001_04_09_pus_map.mod wobs J1957-3845_X_2001_04_09_pus_uvs.fits ! Writing UV FITS file: J1957-3845_X_2001_04_09_pus_uvs.fits wwins J1957-3845_X_2001_04_09_pus_map.win ! wwins: Wrote 2 windows to J1957-3845_X_2001_04_09_pus_map.win x = (field_size-8) * field_cell / 4 addwin -x,x,-x,x clean (field_size*4),0.01 ! Inverting map ! clean: niter=2048 gain=0.01 cutoff=0 ! Component: 050 - total flux cleaned = -0.00199573 Jy ! Component: 100 - total flux cleaned = -0.00293724 Jy ! Component: 150 - total flux cleaned = -0.00336396 Jy ! Component: 200 - total flux cleaned = -0.00353509 Jy ! Component: 250 - total flux cleaned = -0.00364261 Jy ! Component: 300 - total flux cleaned = -0.00395865 Jy ! Component: 350 - total flux cleaned = -0.00431673 Jy ! Component: 400 - total flux cleaned = -0.00471345 Jy ! Component: 450 - total flux cleaned = -0.0050996 Jy ! Component: 500 - total flux cleaned = -0.00547627 Jy ! Component: 550 - total flux cleaned = -0.00579884 Jy ! Component: 600 - total flux cleaned = -0.00629385 Jy ! Component: 650 - total flux cleaned = -0.00668953 Jy ! Component: 700 - total flux cleaned = -0.00707793 Jy ! Component: 750 - total flux cleaned = -0.00737485 Jy ! Component: 800 - total flux cleaned = -0.00770759 Jy ! Component: 850 - total flux cleaned = -0.00795236 Jy ! Component: 900 - total flux cleaned = -0.0081533 Jy ! Component: 950 - total flux cleaned = -0.00831219 Jy ! Component: 1000 - total flux cleaned = -0.00862371 Jy ! Component: 1050 - total flux cleaned = -0.00889173 Jy ! Component: 1100 - total flux cleaned = -0.00911894 Jy ! Component: 1150 - total flux cleaned = -0.0093812 Jy ! Component: 1200 - total flux cleaned = -0.00971403 Jy ! Component: 1250 - total flux cleaned = -0.00989645 Jy ! Component: 1300 - total flux cleaned = -0.0101848 Jy ! Component: 1350 - total flux cleaned = -0.0104343 Jy ! Component: 1400 - total flux cleaned = -0.0107511 Jy ! Component: 1450 - total flux cleaned = -0.011064 Jy ! Component: 1500 - total flux cleaned = -0.0114084 Jy ! Component: 1550 - total flux cleaned = -0.0117146 Jy ! Component: 1600 - total flux cleaned = -0.0119844 Jy ! Component: 1650 - total flux cleaned = -0.0122515 Jy ! Component: 1700 - total flux cleaned = -0.0126153 Jy ! Component: 1750 - total flux cleaned = -0.0128446 Jy ! Component: 1800 - total flux cleaned = -0.0131033 Jy ! Component: 1850 - total flux cleaned = -0.0133596 Jy ! Component: 1900 - total flux cleaned = -0.0136454 Jy ! Component: 1950 - total flux cleaned = -0.0138026 Jy ! Component: 2000 - total flux cleaned = -0.0141141 Jy ! Total flux subtracted in 2048 components = -0.0143296 Jy ! Clean residual min=-0.001735 max=0.002005 Jy/beam ! Clean residual mean=-0.000035 rms=0.000584 Jy/beam ! Combined flux in latest and established models = 1.08383 Jy keep ! Adding 104 model components to the UV plane model. ! The established model now contains 168 components and 1.08383 Jy ![Exited script file: muppet] wmap "J1957-3845_X_2001_04_09_pus\_map.fits" ! Inverting map ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.9391 x 3.284 at -16.35 degrees (North through East) ! Clean map min=-0.0032549 max=0.92581 Jy/beam ! Writing clean map to FITS file: J1957-3845_X_2001_04_09_pus_map.fits float peak_flux peak_flux = peak(flux,max) print "The peak flux is",peak_flux ! The peak flux is 0.925806 invert ! Inverting map float image_rms image_rms = imstat(rms) print "The final image rms is",image_rms ! The final image rms is 0.000579442 device "J1957-3845_X_2001_04_09_pus\_map.eps/VPS" ! Attempting to open device: 'J1957-3845_X_2001_04_09_pus_map.eps/VPS' loglevs 100*3*image_rms/peak_flux ! The new contour levels are: ! -0.187763 0.187763 0.375527 0.751054 1.50211 3.00422 6.00843 12.0169 24.0337 48.0675 96.1349 print "clev=",int(3*image_rms*10000)/10000 ! clev= 0.0017 print "peak=",int(1000*peak_flux)/1000 ! peak= 0.925 mapcolor none ! Mapplot colormap: none, contrast: 1 brightness: 0.5. mapplot cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 0.9391 x 3.284 at -16.35 degrees (North through East) ! Clean map min=-0.0032549 max=0.92581 Jy/beam mapcolor color, 0.9 ! Mapplot colormap: rainbow, contrast: 0.9 brightness: 0.5. device "J1957-3845_X_2001_04_09_pus\_map.gif/vgif" ! Attempting to open device: 'J1957-3845_X_2001_04_09_pus_map.gif/vgif' mapplot cln quit ! Quitting program ! Log file J1957-3845_X_2001_04_09_pus_uvs.log closed on Tue Oct 2 11:23:10 2007