! Started logfile: difmap.log_1 on Thu Nov 20 15:30:08 2008 ![@3C120_S.par] mapunits mas ! Distances in the map plane now have units: milli-arcsec. ! Distances in the UV plane now have units: mega-wavelengths. multi_model false ! Use one model for all channel/polarization selections. get 3C120_S ! Reading UV FITS file: 3C120_S.uvf ! AN table 1: 39 integrations on 190 of 190 possible baselines. ! AN table 2: 71 integrations on 190 of 190 possible baselines. ! AN table 3: 20 integrations on 190 of 190 possible baselines. ! Apparent sampling: 0.199312 visibilities/baseline/integration-bin. ! *** This seems a bit low - see "help observe" on the binwid argument. ! Found source: 3C120 ! ! 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 1905 lines of history. ! ! Reading 19692 visibilities. ! A total of 235 model components were read from file 3C120_S.mod ! rwins: Read 9 windows from 3C120_S.win ! Multi-model file "3C120_S.mtab" not available mapsize 1024,0.4, 1024,0.4 ! Map grid = 1024x1024 pixels with 0.400x0.400 milli-arcsec cellsize. select RR, 1, 4 ! 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 uvtaper 0, 0 ! No UV-taper is currently set. uvrange 0, 0 ! The full UV range of the data is currently selected for gridding. uvweight 0, -1, false ! Uniform weighting is not currently selected. ! Gridding weights will be scaled by errors raised to the power -1. ! Radial weighting is not currently selected. selftaper 0, 0 ! No selfcal UV-taper is currently set. selflims 0, 0 ! Selfcal amplitude corrections will not be limited. ! Selfcal phase corrections will not be limited. xyrange 0, 0, 0, 0 ! The mapplot display area will be limited to: ! Relative RA: (The whole available range) ! Relative DEC: (The whole available range) beamloc 0, 0, 0.01, 0.3 ! Mapplot clean beam ellipse center: 0,0. Size range: 0.01 -> 0.3. polvec 0, 0, 0, 1, 1 ! Give polarization vectors lengths of 0 milli-arcsec/Jy. ! Draw vectors where unpolarized flux > 0 Jy and polarized flux > 0 Jy. ! Draw polarization vectors in every X pixel and in every Y pixel. integer niter niter=100 float gain gain=0.03 float cutoff cutoff=0 float cmul cmul=0 logical docont docont=true mapcolor grey, 1.000000, 0.500000 ! Mapplot colormap: grey, contrast: 1 brightness: 0.5. mapfunc linear, 0.000000, 0.000000 ! Mapplot transfer-function = linear, Data range = data min -> data max. string vflags vflags="" string rflags rflags="" string pflags pflags="" string tflags tflags="" selfflag true, 3, 4 ! - In phase-only self-cal, good data on baselines that are not in closed ! arrays of at least 3 telescopes will be flagged. ! - In amplitude self-cal, good data on baselines that are not in closed ! arrays of at least 4 telescopes will be flagged. scangap 3600 ! Delimiting interscan gap changed to 3600 seconds in all sub-arrays. float levs(1) levs(1:1) = 0 ![Exited script file: 3C120_S.par] mapp ! Adding 235 model components to the UV plane model. ! The established model now contains 235 components and 3.32341 Jy ! Inverting map and beam ! Estimated beam: bmin=2.474 mas, bmaj=6.893 mas, bpa=-5.476 degrees ! Estimated noise=0.454027 mJy/beam. ! ! Move the cursor into the plot window and press 'H' for help cmul=3*imstat(rms) mapcolor color ! Mapplot colormap: rainbow, contrast: 1 brightness: 0.5. loglevs 1,4096 ! The new contour levels are: ! -1 1 2 4 8 16 32 64 128 256 512 1024 2048 xyrange -90,10,-50,50 ! The mapplot display area will be limited to: ! Relative RA: -90 -> 10 (milli-arcsec) ! Relative DEC: -50 -> 50 (milli-arcsec) mappl cln ! restore: Substituting estimate of restoring beam from last 'invert'. ! Restoring with beam: 2.474 x 6.893 at -5.476 degrees (North through East) ! Clean map min=-0.005288 max=1.4121 Jy/beam ! ! Move the cursor into the plot window and press 'H' for help xyrange -45,45,-45,45 ! The mapplot display area will be limited to: ! Relative RA: -45 -> 45 (milli-arcsec) ! Relative DEC: -45 -> 45 (milli-arcsec) mappl cln ! ! Move the cursor into the plot window and press 'H' for help delwin ! All clean windows deleted mappl cln ! ! Move the cursor into the plot window and press 'H' for help exit ! Exiting program ! Log file difmap.log_1 closed on Thu Nov 20 15:32:41 2008