[Tue May  1 13:42:29 2012] Detection parameters:
  Position = (290.0, 196.0) = 3 55 31.70 30 54 13.7
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 36620.1 +/- 232.3
  Background counts = 408.8
  Rate = 0.3 +/- 0.002

[Tue May  1 13:42:44 2012] Off-axis axis estimate = 7.45'
[Tue May  1 14:27:16 2012] Using EEF radius (= 10.15 ")to estimate initial spatial extent for simple fitting
[Tue May  1 14:27:16 2012] Initial guess for spatial extent in simple fitting = 10.15"
[Tue May  1 14:27:16 2012] source mask rpix=2.3, npix_max = 32, mask sum = 36, frac = 1.120
[Tue May  1 14:27:16 2012] Giving source the simple spatial ID 38 for pass 0, mean size = 10.15"
[Wed May  2 15:32:33 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_src38.ximg exists
[Wed May  2 15:32:33 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_src38_1.ximg exists
[Wed May  2 15:32:33 2012] Fit fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_src38 appears to have run properly
[Wed May  2 15:32:35 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src38.ximg exists
[Wed May  2 15:32:35 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src38_1.ximg exists
[Wed May  2 15:32:35 2012] Fit fullrun_pn_xmm0600980101_pi300-10000_cl_pass0_tfrozen_src38 appears to have run properly
[Tue May  8 21:21:10 2012] Source 43 is offset by -2.321946 and -6.186877 pixels which is larger than
2 X fitted extent = 5.046023 x 5.046023, not incorporating fit results
[Tue May  8 21:21:10 2012] Spatial fit model total counts = 73319.300000, observed total counts = 73297.000000
[Tue May  8 21:21:10 2012] Offset between fit and detection position for source 43 = 0.157131 pixels
[Tue May  8 21:21:10 2012] 67927.400000 total counts/ 18378.800000 bgd. counts: snr = 365.487739
Spatial fit parameters:
  Offset between fit and detection position for source 43 = 0.157131 pixels
  Position = (290.1, 196.1) = 3 55 31.68 30 54 14.4
  Extent = 20.3 (20.3-40.6)" x 5.2 (5.2-5.3)", rotation angle = 104 (104-104) degrees
  Source counts = 49548.6 +/- 260.6
  Background counts = 18378.8
  Rate = 0.5 +/- 0.002
[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 axis lower bound
[Tue May  8 21:21:11 2012] Source does appear to be extended
[Tue May  8 21:21:11 2012] Computing asymmetry using errors on major and minor axis (from spatial fitting), asym = 3.85
[Tue May  8 21:21:11 2012] Source is asymmetric
[Tue May  8 21:21:11 2012] Source is confused with source 41
[Tue May  8 21:21:11 2012] Source is confused with source 42
[Tue May  8 21:21:11 2012] Source is confused with source 44
[Tue May  8 21:21:11 2012] Source is confused with source 45
[Tue May  8 21:21:11 2012] Source is confused with source 46
[Tue May  8 21:21:11 2012] Source is confused with source 127
[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] Initial guess for spatial extent in simple fitting = 12.77"
[Tue May  8 21:23:35 2012] source mask rpix=2.9, npix_max = 47, mask sum = 42, frac = 0.890
[Tue May  8 21:23:35 2012] Giving source the simple spatial ID 37 for pass 1, mean size = 12.77"
[Fri May 11 06:52:15 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass1_src37.ximg exists
[Fri May 11 06:52:15 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass1_src37_1.ximg exists
[Fri May 11 06:52:15 2012] Fit fullrun_pn_xmm0600980101_pi300-10000_cl_pass1_src37 appears to have run properly
[Fri May 11 06:52:17 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass1_tfrozen_src37.ximg exists
[Fri May 11 06:52:17 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_pass1_tfrozen_src37.csv
[Fri May 11 06:52:17 2012] fullrun_pn_xmm0600980101_pi300-10000_cl_pass1_tfrozen_src37_1.ximg exists
[Fri May 11 06:52:17 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_pass1_tfrozen_src37.csv
[Fri May 11 06:52:17 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0600980101_pi300-10000_cl_pass1_tfrozen_src37_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0600980101_pi300-10000_cl_pass1_tfrozen_src37.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