[Sun Jun 10 10:21:51 2012] Detection parameters:
  Position = (243.1, 277.2) = 23 1 56.07 58 40 12.7
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 134.1 +/- 20.2
  Background counts = 86.9
  Rate = 0.02 +/- 0.003

[Sun Jun 10 10:21:53 2012] Off-axis axis estimate = 4.30'
[Sun Jun 10 10:27:28 2012] Using EEF radius (= 8.58 ")to estimate initial spatial extent for simple fitting
[Sun Jun 10 10:27:28 2012] Initial guess for spatial extent in simple fitting = 8.58"
[Sun Jun 10 10:27:28 2012] source mask rpix=2.0, npix_max = 24, mask sum = 25, frac = 1.023
[Sun Jun 10 10:27:28 2012] Giving source the simple spatial ID 63 for pass 0, mean size = 8.58"
[Sun Jun 10 16:37:25 2012] fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_src63.ximg exists
[Sun Jun 10 16:37:25 2012] fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_src63_1.ximg exists
[Sun Jun 10 16:37:25 2012] Fit fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_src63 appears to have run properly
[Sun Jun 10 16:37:28 2012] fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_tfrozen_src63.ximg exists
[Sun Jun 10 16:37:28 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_tfrozen_src63.csv
[Sun Jun 10 16:37:28 2012] fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_tfrozen_src63_1.ximg exists
[Sun Jun 10 16:37:28 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_tfrozen_src63.csv
[Sun Jun 10 16:37:28 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_tfrozen_src63_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0057540101_pi300-10000_cl_pass0_tfrozen_src63.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