[Thu May  3 17:40:34 2012] Detection parameters:
  Position = (343.9, 296.0) = 0 25 4.81 64 7 17.7
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 31704.0 +/- 214.1
  Background counts = 341.8
  Rate = 1 +/- 0.01

[Thu May  3 17:40:54 2012] Off-axis axis estimate = 3.30'
[Thu May  3 18:07:41 2012] Using EEF radius (= 8.08 ")to estimate initial spatial extent for simple fitting
[Thu May  3 18:07:41 2012] Initial guess for spatial extent in simple fitting = 8.08"
[Thu May  3 18:07:41 2012] source mask rpix=1.9, npix_max = 22, mask sum = 16, frac = 0.720
[Thu May  3 18:07:41 2012] Giving source the simple spatial ID 40 for pass 0, mean size = 8.08"
[Sat May 12 14:11:39 2012] fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_src40.ximg exists
[Sat May 12 14:11:39 2012] fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_src40_1.ximg exists
[Sat May 12 14:11:39 2012] Fit fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_src40 appears to have run properly
[Sat May 12 14:11:42 2012] fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_tfrozen_src40.ximg exists
[Sat May 12 14:11:42 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_tfrozen_src40.csv
[Sat May 12 14:11:42 2012] fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_tfrozen_src40_1.ximg exists
[Sat May 12 14:11:42 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_tfrozen_src40.csv
[Sat May 12 14:11:42 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_tfrozen_src40_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0511180101_pi300-10000_cl_pass0_tfrozen_src40.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