! Started logfile: 0844+258_S.log on Tue Jan 22 20:47:28 2008 observe 0844+258_S.edt ! Reading UV FITS file: 0844+258_S.edt ! AN table 1: 44 integrations on 136 of 136 possible baselines. ! AN table 2: 74 integrations on 136 of 136 possible baselines. ! Apparent sampling: 0.156655 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: 0844+258 ! ! 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 1259 lines of history. ! ! Reading 10056 visibilities. ![@gonzo6-0.4 0844+258_S] print "***********************************" ! *********************************** print "*** Using gonzo instruction set ***" ! *** Using gonzo instruction set *** print "***********************************" ! *********************************** float field_size field_size = 1024 float field_cell field_cell = 0.4 integer clean_niter clean_niter = 50 float clean_gain clean_gain = 0.03 float dynam dynam = 6.0 float win_mult win_mult = 1.8 float solint solint = 3.6/6.0 logical doflt doflt = true logical doamp float new_peak float flux_cutoff mapsize field_size,field_cell ! Map grid = 1024x1024 pixels with 0.400x0.400 milli-arcsec cellsize. select ! Selecting polarization: RR, channels: 1..4 ! Reading IF 1 channels: 1..1 ! Reading IF 2 channels: 2..2 ! Reading IF 3 channels: 3..3 ! Reading IF 4 channels: 4..4 startmod ! Applying default point source starting model. ! Performing phase self-cal ! Adding 1 model components to the UV plane model. ! The established model now contains 1 components and 1 Jy ! ! Correcting IF 1. ! A total of 495 telescope corrections were flagged in sub-array 1. ! A total of 1116 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 2. ! A total of 495 telescope corrections were flagged in sub-array 1. ! A total of 1104 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 3. ! A total of 493 telescope corrections were flagged in sub-array 1. ! A total of 1130 telescope corrections were flagged in sub-array 2. ! ! Correcting IF 4. ! A total of 495 telescope corrections were flagged in sub-array 1. ! A total of 1133 telescope corrections were flagged in sub-array 2. ! ! Fit before self-cal, rms=0.904320Jy sigma=0.012755 ! Fit after self-cal, rms=0.902972Jy sigma=0.012756 ! 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=2.563 mas, bmaj=3.656 mas, bpa=-5.793 degrees ! Estimated noise=1688.81 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 = 0.0777188 Jy ! Total flux subtracted in 50 components = 0.0777188 Jy ! Clean residual min=-0.006488 max=0.021676 Jy/beam ! Clean residual mean=-0.000010 rms=0.001580 Jy/beam ! Combined flux in latest and established models = 0.0777188 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 1 model components to the UV plane model. ! The established model now contains 1 components and 0.0777188 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.049121Jy sigma=0.000662 ! Fit after self-cal, rms=0.049122Jy sigma=0.000662 ! Inverting map ! clean: niter=50 gain=0.03 cutoff=0 ! Component: 050 - total flux cleaned = 0.0169766 Jy ! Total flux subtracted in 50 components = 0.0169766 Jy ! Clean residual min=-0.004846 max=0.005015 Jy/beam ! Clean residual mean=0.000001 rms=0.001029 Jy/beam ! Combined flux in latest and established models = 0.0946955 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 3 model components to the UV plane model. ! The established model now contains 3 components and 0.0946955 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.044810Jy sigma=0.000603 ! Fit after self-cal, rms=0.044809Jy sigma=0.000603 ! 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=2.856 mas, bmaj=4.244 mas, bpa=-9.482 degrees ! Estimated noise=962.545 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 = -0.000891536 Jy ! Component: 100 - total flux cleaned = -0.00100925 Jy ! Total flux subtracted in 100 components = -0.00100925 Jy ! Clean residual min=-0.003241 max=0.003299 Jy/beam ! Clean residual mean=-0.000004 rms=0.000744 Jy/beam ! Combined flux in latest and established models = 0.0936862 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 8 components and 0.0936862 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.044265Jy sigma=0.000597 ! Fit after self-cal, rms=0.044253Jy sigma=0.000597 ! Inverting map print "****************************************" ! **************************************** print "*** Finished Natural Weighting CLEAN ***" ! *** Finished Natural Weighting CLEAN *** print "****************************************" ! **************************************** gscale true ! Performing overall amplitude self-cal ! ! Correcting IF 1. ! A total of 3 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.92 FD 1.05 GC 1.00* HN 0.99 ! KK 1.01 KP 1.01 LA 1.03 MC 1.00* ! MK 0.95 NL 1.00 NY 0.92 ON 1.00* ! OV 1.03 PT 1.02 SC 0.93 WF 1.01 ! WZ 1.00* ! ! A total of 3 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.02 FD 1.00* GC 0.97 HN 1.00* ! KK 1.00* KP 1.00* LA 1.00* MC 0.99 ! MK 1.00* NL 1.00* NY 0.96 ON 0.96 ! OV 1.00* PT 1.00* SC 1.00* WF 1.00* ! WZ 0.96 ! ! ! Correcting IF 2. ! A total of 3 telescope corrections were flagged in sub-array 1. ! Telescope amplitude corrections in sub-array 1: ! BR 0.95 FD 0.90 GC 1.00* HN 1.02 ! KK 1.04 KP 1.02 LA 1.01 MC 1.00* ! MK 1.03 NL 1.05 NY 0.91 ON 1.00* ! OV 1.06 PT 1.03 SC 0.91 WF 0.96 ! WZ 1.00* ! ! A total of 3 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.03 FD 1.00* GC 0.94 HN 1.00* ! KK 1.00* KP 1.00* LA 1.00* MC 0.98 ! MK 1.00* NL 1.00* NY 1.02 ON 0.96 ! OV 1.00* PT 1.00* SC 1.00* WF 1.00* ! WZ 0.94 ! ! ! Correcting IF 3. ! Telescope amplitude corrections in sub-array 1: ! BR 1.03 FD 0.92 GC 1.00* HN 0.99 ! KK 0.95 KP 0.98 LA 1.00 MC 1.00* ! MK 1.03 NL 1.00 NY 0.97 ON 1.00* ! OV 1.09 PT 0.98 SC 0.91 WF 0.96 ! WZ 1.00* ! ! A total of 15 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.01 FD 1.00* GC 0.96 HN 1.00* ! KK 1.00* KP 1.00* LA 1.00* MC 0.91 ! MK 1.00* NL 1.00* NY 0.99 ON 0.98 ! OV 1.00* PT 1.00* SC 1.00* WF 1.00* ! WZ 0.95 ! ! ! Correcting IF 4. ! Telescope amplitude corrections in sub-array 1: ! BR 0.98 FD 1.03 GC 1.00* HN 1.03 ! KK 0.96 KP 0.98 LA 0.96 MC 1.00* ! MK 1.04 NL 0.98 NY 0.90 ON 1.00* ! OV 1.02 PT 0.98 SC 1.09 WF 1.03 ! WZ 1.00* ! ! A total of 9 telescope corrections were flagged in sub-array 2. ! Telescope amplitude corrections in sub-array 2: ! BR 1.01 FD 1.00* GC 1.03 HN 1.00* ! KK 1.00* KP 1.00* LA 1.00* MC 0.88 ! MK 1.00* NL 1.00* NY 0.95 ON 0.98 ! OV 1.00* PT 1.00* SC 1.00* WF 1.00* ! WZ 0.94 ! ! ! Fit before self-cal, rms=0.044253Jy sigma=0.000597 ! Fit after self-cal, rms=0.042954Jy sigma=0.000591 dynam = dynam - 0.5 doamp = false flux_cutoff = imstat(rms) * dynam ! Inverting map and beam ! Estimated beam: bmin=2.854 mas, bmaj=4.161 mas, bpa=-8.944 degrees ! Estimated noise=950.875 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 = -0.00173891 Jy ! Component: 100 - total flux cleaned = -0.00207385 Jy ! Total flux subtracted in 100 components = -0.00207385 Jy ! Clean residual min=-0.002688 max=0.002587 Jy/beam ! Clean residual mean=-0.000001 rms=0.000615 Jy/beam ! Combined flux in latest and established models = 0.0916124 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 13 components and 0.0916124 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.042884Jy sigma=0.000590 ! Fit after self-cal, rms=0.042877Jy sigma=0.000590 ! 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 = -0.000133352 Jy ! Component: 100 - total flux cleaned = -0.0001548 Jy ! Total flux subtracted in 100 components = -0.0001548 Jy ! Clean residual min=-0.002687 max=0.002604 Jy/beam ! Clean residual mean=-0.000001 rms=0.000610 Jy/beam ! Combined flux in latest and established models = 0.0914576 Jy ! Performing amp+phase self-cal over 1 minute time intervals ! Adding 6 model components to the UV plane model. ! The established model now contains 16 components and 0.0914576 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.042859Jy sigma=0.000589 ! Fit after self-cal, rms=0.042976Jy sigma=0.000579 ! Inverting map and beam ! Estimated beam: bmin=2.859 mas, bmaj=4.167 mas, bpa=-8.779 degrees ! Estimated noise=956.114 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 = -0.00021036 Jy ! Component: 100 - total flux cleaned = -0.000246961 Jy ! Total flux subtracted in 100 components = -0.000246961 Jy ! Clean residual min=-0.002554 max=0.002499 Jy/beam ! Clean residual mean=0.000000 rms=0.000595 Jy/beam ! Combined flux in latest and established models = 0.0912106 Jy ! Performing phase self-cal over 0.6 minute time intervals ! Adding 9 model components to the UV plane model. ! The established model now contains 23 components and 0.0912106 Jy ! ! Correcting IF 1. ! ! Correcting IF 2. ! ! Correcting IF 3. ! ! Correcting IF 4. ! ! Fit before self-cal, rms=0.042964Jy sigma=0.000579 ! Fit after self-cal, rms=0.042971Jy sigma=0.000579 ! Inverting map print "***********************************" ! *********************************** print "*** Finished Amplitude Self-Cal ***" ! *** Finished Amplitude Self-Cal *** print "***********************************" ! *********************************** save 0844+258_S ! Writing UV FITS file: 0844+258_S.uvf ! Writing 23 model components to file: 0844+258_S.mod ! wwins: Wrote 1 windows to 0844+258_S.win ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.859 x 4.167 at -8.779 degrees (North through East) ! Clean map min=-0.0024803 max=0.096948 Jy/beam ! Writing clean map to FITS file: 0844+258_S.fits ! Writing difmap environment to: 0844+258_S.par print "****************************" ! **************************** print "*** Now, make some plots ***" ! *** Now, make some plots *** print "****************************" ! **************************** ![@gonzo_plot 0844+258_S] device 0844+258_Suv.ps/vps,1,2 ! Attempting to open device: '0844+258_Suv.ps/vps' radplot ! Using default options string "m1" uvplot ! Using default options string "" device 0844+258_Sim.ps/vps ! Attempting to open device: '0844+258_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=2.859 mas, bmaj=4.167 mas, bpa=-8.779 degrees ! Estimated noise=956.114 mJy/beam. mappl cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.859 x 4.167 at -8.779 degrees (North through East) ! Clean map min=-0.0024803 max=0.096948 Jy/beam ![Exited script file: gonzo_plot] ![Exited script file: gonzo6-0.4] quit ! Quitting program ! Log file 0844+258_S.log closed on Tue Jan 22 20:47:33 2008