[Sat Feb 18 12:54:13 2012] Detection parameters:
  Position = (813.9, 261.2) = 1 2 56.72 -72 48 11.7
  Extent = 0.6" x 0.5", rotation angle = 62 degrees
  Source counts = 15.2 +/- 4.1
  Background counts = 1.8
  Rate = 0.0005 +/- 0.0001

[Sat Feb 18 12:54:13 2012] Off-axis axis estimate = 2.55'
[Sat Feb 18 14:17:54 2012] Using EEF radius (= 0.50 ")to estimate initial spatial extent for simple fitting
[Sat Feb 18 14:17:54 2012] Initial guess for spatial extent in simple fitting = 0.50"
[Sat Feb 18 14:17:54 2012] source mask rpix=1.0, npix_max = 9, mask sum = 9, frac = 0.978
[Sat Feb 18 14:17:54 2012] Giving source the simple spatial ID 15 for pass 0, mean size = 0.50"
[Sat Feb 18 14:39:39 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass0_src15.ximg exists
[Sat Feb 18 14:39:39 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass0_src15_1.ximg exists
[Sat Feb 18 14:39:39 2012] Fit fullrun_ccd7_acisf11821_pi14-548_cl_pass0_src15 appears to have run properly
[Sat Feb 18 14:39:39 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass0_tfrozen_src15.ximg exists
[Sat Feb 18 14:39:39 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass0_tfrozen_src15_1.ximg exists
[Sat Feb 18 14:39:39 2012] Fit fullrun_ccd7_acisf11821_pi14-548_cl_pass0_tfrozen_src15 appears to have run properly
[Sat Feb 18 14:39:46 2012] Spatial fit model total counts = 19.833600, observed total counts = 20.000000
[Sat Feb 18 14:39:46 2012] Offset between fit and detection position for source 18 = 0.446796 pixels
[Sat Feb 18 14:39:46 2012] 20.253880 total counts/ 4.941780 bgd. counts: snr = 6.887999
Spatial fit parameters:
  Offset between fit and detection position for source 18 = 0.446796 pixels
  Position = (814.3, 261.5) = 1 2 56.74 -72 48 11.9
  Extent = 0.6 (0.4-0.9)", rotation angle = 0
  Source counts = 15.3 +/- 4.5
  Background counts = 4.9
  Rate = 0.0005 +/- 0.0002
[Sat Feb 18 14:39:46 2012] Vigneting correction estimate = 1.000000
[Sat Feb 18 14:39:46 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Sat Feb 18 14:39:46 2012] Assessing source extent using major axis lower bound
[Sat Feb 18 14:39:46 2012] Source does appear to be extended
[Sat Feb 18 14:39:46 2012] Computing asymmetry using major and minor axis, asym = 1.00
[Sat Feb 18 15:40:07 2012] Using previous fit value to estimate initial spatial extent for simple fitting
[Sat Feb 18 15:40:07 2012] Initial guess for spatial extent in simple fitting = 0.64"
[Sat Feb 18 15:40:07 2012] source mask rpix=1.3, npix_max = 12, mask sum = 12, frac = 0.929
[Sat Feb 18 15:40:07 2012] Giving source the simple spatial ID 15 for pass 1, mean size = 0.64"
[Sat Feb 18 15:57:02 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass1_src15.ximg exists
[Sat Feb 18 15:57:02 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass1_src15_1.ximg exists
[Sat Feb 18 15:57:02 2012] Fit fullrun_ccd7_acisf11821_pi14-548_cl_pass1_src15 appears to have run properly
[Sat Feb 18 15:57:02 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass1_tfrozen_src15.ximg exists
[Sat Feb 18 15:57:02 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_ccd7_acisf11821_pi14-548_cl_pass1_tfrozen_src15.csv
[Sat Feb 18 15:57:02 2012] fullrun_ccd7_acisf11821_pi14-548_cl_pass1_tfrozen_src15_1.ximg exists
[Sat Feb 18 15:57:02 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_ccd7_acisf11821_pi14-548_cl_pass1_tfrozen_src15.csv
[Sat Feb 18 15:57:02 2012] It looks like the fit did not converge
You should probably delete fullrun_ccd7_acisf11821_pi14-548_cl_pass1_tfrozen_src15_1.ximg
Either tweak this fit manually starting from fullrun_ccd7_acisf11821_pi14-548_cl_pass1_tfrozen_src15.ximg or adjust the simplespatial fit parameters in $XASSIST/data/missions/*/*/spatial.dat and re-run simplespatial fitting after setting file recreation parameter to yes
[Sat Feb 18 15:57:08 2012] Spatial fit model total counts = 19.988300, observed total counts = 20.000000
[Sat Feb 18 15:57:08 2012] Offset between fit and detection position for source 18 = 0.027160 pixels
[Sat Feb 18 15:57:08 2012] 20.325990 total counts/ 5.208090 bgd. counts: snr = 6.624487
Spatial fit parameters:
  Offset between fit and detection position for source 18 = 0.027160 pixels
  Position = (814.3, 261.5) = 1 2 56.73 -72 48 11.9
  Extent = 0.7 (0.4-1.0)" x 0.6 (0.3-1.0)", rotation angle = 355 (344-0) degrees
  Source counts = 15.1 +/- 4.5
  Background counts = 5.2
  Rate = 0.0005 +/- 0.0002
[Sat Feb 18 15:57:08 2012] Vigneting correction estimate = 1.000000
[Sat Feb 18 15:57:08 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Sat Feb 18 15:57:08 2012] Assessing source extent using major axis lower bound
[Sat Feb 18 15:57:08 2012] Source does appear to be extended
[Sat Feb 18 15:57:08 2012] Computing asymmetry using errors on major and minor axis (from spatial fitting), asym = 0.46
[Sat Feb 18 15:57:08 2012] Deleting source due to low Poisson probability 0.7