! Started logfile: difmap.log on Thu Nov 20 15:35:30 2008
![@3C274_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 3C274_S
! Reading UV FITS file: 3C274_S.uvf
! AN table 1: 75 integrations on 171 of 171 possible baselines.
! AN table 2: 90 integrations on 171 of 171 possible baselines.
! Apparent sampling: 0.119121 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 1619 lines of history.
! 
! Reading 13444 visibilities.
! A total of 615 model components were read from file 3C274_S.mod
! rwins: Read 22 windows from 3C274_S.win
! Multi-model file "3C274_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: 3C274_S.par]
mapp
! Adding 615 model components to the UV plane model.
! The established model now contains 615 components and 2.18454 Jy
! Inverting map and beam 
! Estimated beam: bmin=2.41 mas, bmaj=4.505 mas, bpa=-0.4449 degrees
! Estimated noise=0.639253 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 -100,10,-55,55
! The mapplot display area will be limited to:
!  Relative  RA: -100 -> 10 (milli-arcsec)
!  Relative DEC: -55 -> 55 (milli-arcsec)
delwin
! All clean windows deleted
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 2.41 x 4.505 at -0.4449 degrees (North through East)
! Clean map  min=-0.0049635  max=0.79436 Jy/beam
! 
! Move the cursor into the plot window and press 'H' for help
xyrange -100,10,-40,40
! The mapplot display area will be limited to:
!  Relative  RA: -100 -> 10 (milli-arcsec)
!  Relative DEC: -40 -> 40 (milli-arcsec)
mappl cln
! 
! Move the cursor into the plot window and press 'H' for help
xyrange -100,10,-30,50
! The mapplot display area will be limited to:
!  Relative  RA: -100 -> 10 (milli-arcsec)
!  Relative DEC: -30 -> 50 (milli-arcsec)
mappl cln
! 
! Move the cursor into the plot window and press 'H' for help
exit
! Exiting program
! Log file difmap.log closed on Thu Nov 20 15:39:30 2008