[Tue May  1 13:42:25 2012] Detection parameters:
  Position = (309.5, 330.7) = 3 55 25.10 31 3 55.0
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 17026.2 +/- 238.0
  Background counts = 1258.5
  Rate = 0.2 +/- 0.003

[Tue May  1 13:42:44 2012] Off-axis axis estimate = 2.47'
[Tue May  1 14:27:16 2012] Using EEF radius (= 7.67 ")to estimate initial spatial extent for simple fitting
[Tue May  1 14:27:16 2012] Initial guess for spatial extent in simple fitting = 7.67"
[Tue May  1 14:27:16 2012] source mask rpix=1.8, npix_max = 20, mask sum = 18, frac = 0.879
[Tue May  1 14:27:16 2012] Giving source the simple spatial ID 13 for pass 0, mean size = 7.67"
[Wed May  2 15:32:32 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_src13.ximg exists
[Wed May  2 15:32:32 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_src13_1.ximg exists
[Wed May  2 15:32:32 2012] Fit fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_src13 appears to have run properly
[Wed May  2 15:32:34 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src13.ximg exists
[Wed May  2 15:32:34 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src13.csv
[Wed May  2 15:32:34 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src13_1.ximg exists
[Wed May  2 15:32:34 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src13.csv
[Wed May  2 15:32:34 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src13_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src13.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
[Tue May  8 21:21:10 2012] Spatial fit model total counts = 116715.000000, observed total counts = 122233.000000
[Tue May  8 21:21:10 2012] Offset between fit and detection position for source 15 = 6.019123 pixels
[Tue May  8 21:21:10 2012] 114263.300000 total counts/ 25600.000000 bgd. counts: snr = 554.145625
Spatial fit parameters:
  Offset between fit and detection position for source 15 = 6.019123 pixels
  Position = (309.6, 324.7) = 3 55 25.08 31 3 33.6
  Extent = 15.5" x 15.5", rotation angle = 284
  Source counts = 88663.3 +/- 338.0
  Background counts = 25600.0
  Rate = 0.8 +/- 0.003
[Tue May  8 21:21:10 2012] Spatial fit model total counts = 297910.000000, observed total counts = 193391.000000
[Tue May  8 21:21:10 2012] Poor agreement between spatial fit and data for source 15
It may help to tweak spatial fit manually
Not incorporating fit results
[Tue May  8 21:21:11 2012] Vigneting correction estimate = 1.000000
[Tue May  8 21:21:11 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Tue May  8 21:21:11 2012] Assessing source extent using major
[Tue May  8 21:21:11 2012] Source does appear to be extended
[Tue May  8 21:21:11 2012] Computing asymmetry using major and minor axis, asym = 1.00
[Tue May  8 21:21:11 2012] Source is confused with source 1
[Tue May  8 21:23:35 2012] Using previous fit value to estimate initial spatial extent for simple fitting
[Tue May  8 21:23:35 2012] Setting initial spatial extent for simple fitting to maximum allowed for this pass
[Tue May  8 21:23:35 2012] Initial guess for spatial extent in simple fitting = 15.46"
[Tue May  8 21:23:35 2012] source mask rpix=3.6, npix_max = 65, mask sum = 29, frac = 0.441
[Tue May  8 21:23:35 2012] Skipping simple spatial due to low active detector fraction