! Started logfile: difmap.log on Tue Nov 19 17:25:21 1996
observe 1657-261_U.edt
! Reading UV FITS file: 1657-261_U.edt
! AN table 1: 31 integrations on 36 of 36 possible baselines.
! Apparent sampling: 0.830645 visibilities/baseline/integration-bin.
! Found source: 1657-261
! 
! Number of spectral-line channels: 1
! 
! IF    Freq (Hz)  Chan BW (Hz)  Full BW (Hz)  Sideband
! 01  1.49105e+10         8e+06         8e+06       USB
! 02  1.49205e+10         8e+06         8e+06       USB
! 03  1.49505e+10         8e+06         8e+06       USB
! 04  1.50105e+10         8e+06         8e+06       USB
! 05  1.51205e+10         8e+06         8e+06       USB
! 06  1.52005e+10         8e+06         8e+06       USB
! 07  1.52505e+10         8e+06         8e+06       USB
! 08  1.52705e+10         8e+06         8e+06       USB
! 
! Polarization(s): RR
! 
! Read 569 lines of history.
! 
! Reading 7416 visibilities.
! Selecting polarization: RR,  channels: 1..1
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.
mapsi 1024,0.1
! Map grid = 1024x1024 pixels with 0.100x0.100 milli-arcsec cellsize.
mapp
! Inverting map and beam 
! Estimated beam: bmin=0.5771 mas, bmaj=2.36 mas, bpa=19.88 degrees
! Estimated noise=1.78939 mJy/beam.
! 
! Move the cursor into the plot window and press 'H' for help
peakwin 0.7
! Added new window around map position (0, 0).
mapp
! 
! Move the cursor into the plot window and press 'H' for help
clean 100,0.03
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.885011 Jy
! Component: 100  -  total flux cleaned = 1.07976 Jy
! Total flux subtracted in 100 components = 1.07976 Jy
! Clean residual min=-0.019923 max=0.061948 Jy/beam
! Clean residual mean=0.000106 rms=0.008533 Jy/beam
! Combined flux in latest and established models = 1.07976 Jy
selfcal false,false,4/6
! Performing phase self-cal over 0.666667 minute time intervals
! Adding 12 model components to the UV plane model.
! The established model now contains 12 components and 1.07976 Jy
! 
! Correcting IF 1.
!  A total of 119 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 2.
!  A total of 122 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 3.
!  A total of 119 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 4.
!  A total of 119 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 5.
!  A total of 119 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 6.
!  A total of 119 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 7.
!  A total of 119 telescope corrections were flagged in sub-array 1.
! 
! Correcting IF 8.
!  A total of 119 telescope corrections were flagged in sub-array 1.
! 
! Fit before self-cal, rms=0.149349Jy  sigma=0.864080
! Fit after  self-cal, rms=0.149092Jy  sigma=0.862807
! 
! Reinstating the default IF.
mapp
! Inverting map and beam 
! Estimated beam: bmin=0.5772 mas, bmaj=2.36 mas, bpa=19.89 degrees
! Estimated noise=1.78954 mJy/beam.
! 
! Move the cursor into the plot window and press 'H' for help
clean 100,0.03
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0623101 Jy
! Component: 100  -  total flux cleaned = 0.0891541 Jy
! Total flux subtracted in 100 components = 0.0891541 Jy
! Clean residual min=-0.018927 max=0.026111 Jy/beam
! Clean residual mean=0.000046 rms=0.004591 Jy/beam
! Combined flux in latest and established models = 1.16892 Jy
selfcal false,false,4/6
! Performing phase self-cal over 0.666667 minute time intervals
! Adding 12 model components to the UV plane model.
! The established model now contains 22 components and 1.16892 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Correcting IF 5.
! 
! Correcting IF 6.
! 
! Correcting IF 7.
! 
! Correcting IF 8.
! 
! Fit before self-cal, rms=0.125778Jy  sigma=0.723616
! Fit after  self-cal, rms=0.125718Jy  sigma=0.723310
! 
! Reinstating the default IF.
mapp
! Inverting map 
! 
! Move the cursor into the plot window and press 'H' for help
clean 100,0.03
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.0118451 Jy
! Component: 100  -  total flux cleaned = 0.0132612 Jy
! Total flux subtracted in 100 components = 0.0132612 Jy
! Clean residual min=-0.019607 max=0.021772 Jy/beam
! Clean residual mean=0.000037 rms=0.004384 Jy/beam
! Combined flux in latest and established models = 1.18218 Jy
selfcal false,false,4/6
! Performing phase self-cal over 0.666667 minute time intervals
! Adding 6 model components to the UV plane model.
! The established model now contains 22 components and 1.18218 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Correcting IF 5.
! 
! Correcting IF 6.
! 
! Correcting IF 7.
! 
! Correcting IF 8.
! 
! Fit before self-cal, rms=0.124691Jy  sigma=0.717166
! Fit after  self-cal, rms=0.124659Jy  sigma=0.717010
! 
! Reinstating the default IF.
mapp
! Inverting map 
! 
! Move the cursor into the plot window and press 'H' for help
clean 100,0.03
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00108928 Jy
! Component: 100  -  total flux cleaned = 0.00183405 Jy
! Total flux subtracted in 100 components = 0.00183405 Jy
! Clean residual min=-0.019304 max=0.020690 Jy/beam
! Clean residual mean=0.000036 rms=0.004319 Jy/beam
! Combined flux in latest and established models = 1.18401 Jy
selfcal false,false,4/6
! Performing phase self-cal over 0.666667 minute time intervals
! Adding 4 model components to the UV plane model.
! The established model now contains 22 components and 1.18401 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Correcting IF 5.
! 
! Correcting IF 6.
! 
! Correcting IF 7.
! 
! Correcting IF 8.
! 
! Fit before self-cal, rms=0.124219Jy  sigma=0.714406
! Fit after  self-cal, rms=0.124205Jy  sigma=0.714343
! 
! Reinstating the default IF.
mapp
! Inverting map 
! 
! Move the cursor into the plot window and press 'H' for help
radp
! Using default options string "m1"
! Move the cursor into the plot window and press 'H' for help
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        1.03     FD        0.98     HN        1.09     KP        0.98     
!   LA        1.01     NL        1.06     OV        0.98     PT        0.95     
!   SC        1.00     
! 
! 
! Correcting IF 2.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.04     FD        0.98     HN        1.06     KP        0.97     
!   LA        1.00     NL        1.04     OV        1.00     PT        0.98     
!   SC        1.00     
! 
! 
! Correcting IF 3.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.05     FD        0.97     HN        1.04     KP        0.98     
!   LA        1.01     NL        1.06     OV        1.03     PT        0.97     
!   SC        1.02     
! 
! 
! Correcting IF 4.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.03     FD        0.99     HN        1.05     KP        0.98     
!   LA        1.02     NL        1.04     OV        0.99     PT        0.96     
!   SC        1.00     
! 
! 
! Correcting IF 5.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.00     FD        0.96     HN        1.03     KP        0.95     
!   LA        0.99     NL        1.00     OV        1.01     PT        0.95     
!   SC        0.98     
! 
! 
! Correcting IF 6.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.02     FD        0.96     HN        1.06     KP        0.97     
!   LA        1.00     NL        1.04     OV        1.01     PT        0.95     
!   SC        0.99     
! 
! 
! Correcting IF 7.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.02     FD        0.97     HN        1.07     KP        0.99     
!   LA        1.01     NL        1.07     OV        1.02     PT        0.95     
!   SC        1.00     
! 
! 
! Correcting IF 8.
!  A total of 3 telescope corrections were flagged in sub-array 1.
!  Telescope amplitude corrections in sub-array 1:
!   BR        1.07     FD        0.98     HN        1.05     KP        1.00     
!   LA        1.03     NL        1.06     OV        1.02     PT        0.97     
!   SC        1.01     
! 
! 
! Fit before self-cal, rms=0.124205Jy  sigma=0.714343
! Fit after  self-cal, rms=0.114999Jy  sigma=0.647981
! 
! Reinstating the default IF.
radp
! Using default options string "m1"
! Move the cursor into the plot window and press 'H' for help
clean 100,0.03
! Inverting map and beam 
! Estimated beam: bmin=0.5794 mas, bmaj=2.388 mas, bpa=20.02 degrees
! Estimated noise=1.79816 mJy/beam.
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = -0.000165902 Jy
! Component: 100  -  total flux cleaned = -0.000339221 Jy
! Total flux subtracted in 100 components = -0.000339221 Jy
! Clean residual min=-0.009558 max=0.010473 Jy/beam
! Clean residual mean=0.000008 rms=0.002286 Jy/beam
! Combined flux in latest and established models = 1.18367 Jy
selfcal false,false,4/6
! Performing phase self-cal over 0.666667 minute time intervals
! Adding 6 model components to the UV plane model.
! The established model now contains 26 components and 1.18367 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Correcting IF 5.
! 
! Correcting IF 6.
! 
! Correcting IF 7.
! 
! Correcting IF 8.
! 
! Fit before self-cal, rms=0.114785Jy  sigma=0.646734
! Fit after  self-cal, rms=0.114782Jy  sigma=0.646682
! 
! Reinstating the default IF.
mapp
! Inverting map 
! 
! Move the cursor into the plot window and press 'H' for help
selfcal true,true,1
! Performing amp+phase self-cal over 1 minute time intervals
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Correcting IF 5.
! 
! Correcting IF 6.
! 
! Correcting IF 7.
! 
! Correcting IF 8.
! 
! Fit before self-cal, rms=0.114782Jy  sigma=0.646682
! Fit after  self-cal, rms=0.111033Jy  sigma=0.622825
! 
! Reinstating the default IF.
clean 100,0.03
! Inverting map and beam 
! Estimated beam: bmin=0.5801 mas, bmaj=2.394 mas, bpa=19.87 degrees
! Estimated noise=1.79926 mJy/beam.
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 0.00140871 Jy
! Component: 100  -  total flux cleaned = 0.00150092 Jy
! Total flux subtracted in 100 components = 0.00150092 Jy
! Clean residual min=-0.004895 max=0.006772 Jy/beam
! Clean residual mean=0.000010 rms=0.001321 Jy/beam
! Combined flux in latest and established models = 1.18518 Jy
selfcal false,false,4/6
! Performing phase self-cal over 0.666667 minute time intervals
! Adding 4 model components to the UV plane model.
! The established model now contains 28 components and 1.18518 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Correcting IF 5.
! 
! Correcting IF 6.
! 
! Correcting IF 7.
! 
! Correcting IF 8.
! 
! Fit before self-cal, rms=0.110961Jy  sigma=0.622353
! Fit after  self-cal, rms=0.110961Jy  sigma=0.622347
! 
! Reinstating the default IF.
mapp
! Inverting map 
! 
! Move the cursor into the plot window and press 'H' for help
clean 100,0.03
! clean: niter=100  gain=0.03  cutoff=0
! Component: 050  -  total flux cleaned = 4.8155e-05 Jy
! Component: 100  -  total flux cleaned = -3.70818e-05 Jy
! Total flux subtracted in 100 components = -3.70818e-05 Jy
! Clean residual min=-0.004800 max=0.006503 Jy/beam
! Clean residual mean=0.000010 rms=0.001300 Jy/beam
! Combined flux in latest and established models = 1.18514 Jy
selfcal false,false,4/6
! Performing phase self-cal over 0.666667 minute time intervals
! Adding 7 model components to the UV plane model.
! The established model now contains 29 components and 1.18514 Jy
! 
! Correcting IF 1.
! 
! Correcting IF 2.
! 
! Correcting IF 3.
! 
! Correcting IF 4.
! 
! Correcting IF 5.
! 
! Correcting IF 6.
! 
! Correcting IF 7.
! 
! Correcting IF 8.
! 
! Fit before self-cal, rms=0.110907Jy  sigma=0.622011
! Fit after  self-cal, rms=0.110908Jy  sigma=0.622015
! 
! Reinstating the default IF.
mapp
! Inverting map 
! 
! Move the cursor into the plot window and press 'H' for help
save 1657-261_U
! Writing UV FITS file: 1657-261_U.uvf
! Writing 29 model components to file: 1657-261_U.mod
! wwins: Wrote 1 windows to 1657-261_U.win
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.5801 x 2.394 at 19.87 degrees (North through East)
! Clean map  min=-0.0044912  max=1.1325 Jy/beam
! Writing clean map to FITS file: 1657-261_U.fits
! Writing difmap environment to: 1657-261_U.par
device 1657-261_Uuv.ps/vps,1,2
! Attempting to open device: '1657-261_Uuv.ps/vps'
radp
! Using default options string "m1"
uvp
device 1657-261_Uim.ps/vps
! Attempting to open device: '1657-261_Uim.ps/vps'
cmul = 1.0
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 (imstat(rms)*3),20000,2
! Inverting map and beam 
! Estimated beam: bmin=0.5801 mas, bmaj=2.394 mas, bpa=19.87 degrees
! Estimated noise=1.79926 mJy/beam.
! The new contour levels are:
!  -0.00390809 0.00390809 0.00781619 0.0156324 0.0312648 0.0625295 0.125059 0.250118 0.500236 1.00047 2.00094 4.00189 8.00378 16.0076 32.0151 64.0302 128.06 256.121 512.242 1024.48 2048.97 4097.93 8195.87 16391.7
mappl cln
! restore: Substituting estimate of restoring beam from last 'invert'.
! Restoring with beam: 0.5801 x 2.394 at 19.87 degrees (North through East)
! Clean map  min=-0.0044912  max=1.1325 Jy/beam
quit
! Quitting program
! Log file difmap.log closed on Tue Nov 19 17:29:57 1996