[Sat Aug 18 08:36:59 2012] Detection parameters:
  Position = (298.9, 294.0) = 0 25 6.17 64 8 27.5
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 18245.2 +/- 170.7
  Background counts = 523.0
  Rate = 0.9 +/- 0.008

[Sat Aug 18 08:37:04 2012] Off-axis axis estimate = 0.32'
[Sat Aug 18 08:51:49 2012] Using EEF radius (= 6.59 ")to estimate initial spatial extent for simple fitting
[Sat Aug 18 08:51:49 2012] Initial guess for spatial extent in simple fitting = 6.59"
[Sat Aug 18 08:51:49 2012] source mask rpix=1.5, npix_max = 16, mask sum = 16, frac = 0.985
[Sat Aug 18 08:51:49 2012] Giving source the simple spatial ID 16 for pass 0, mean size = 6.59"
[Sun Aug 19 21:47:02 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_src16.ximg exists
[Sun Aug 19 21:47:02 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_src16_1.ximg exists
[Sun Aug 19 21:47:02 2012] Fit fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_src16 appears to have run properly
[Sun Aug 19 21:47:04 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src16.ximg exists
[Sun Aug 19 21:47:04 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src16.csv
[Sun Aug 19 21:47:04 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src16_1.ximg exists
[Sun Aug 19 21:47:04 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src16.csv
[Sun Aug 19 21:47:04 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src16_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src16.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
[Sun Aug 26 22:07:10 2012] Spatial fit model total counts = 59407.700000, observed total counts = 57829.000000
[Sun Aug 26 22:07:10 2012] Offset between fit and detection position for source 16 = 3.741558 pixels
[Sun Aug 26 22:07:10 2012] 49660.100000 total counts/ 25600.000000 bgd. counts: snr = 150.375625
Spatial fit parameters:
  Offset between fit and detection position for source 16 = 3.741558 pixels
  Position = (302.6, 294.6) = 0 25 3.72 64 8 30.7
  Extent = 13.2 (13.2-26.4)" x 13.2 (13.2-26.4)", rotation angle = 0 (360-0) degrees
  Source counts = 24060.1 +/- 222.8
  Background counts = 25600.0
  Rate = 2 +/- 0.01
[Sun Aug 26 22:07:10 2012] Vigneting correction estimate = 1.000000
[Sun Aug 26 22:07:10 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Sun Aug 26 22:07:10 2012] Assessing source extent using major axis lower bound
[Sun Aug 26 22:07:10 2012] Source does appear to be extended
[Sun Aug 26 22:07:10 2012] Computing asymmetry using errors on major and minor axis (from spatial fitting), asym = 0.50
[Sun Aug 26 22:07:57 2012] Using previous fit value to estimate initial spatial extent for simple fitting
[Sun Aug 26 22:07:57 2012] Initial guess for spatial extent in simple fitting = 13.18"
[Sun Aug 26 22:07:57 2012] source mask rpix=3.0, npix_max = 49, mask sum = 49, frac = 0.983
[Sun Aug 26 22:07:57 2012] Giving source the simple spatial ID 16 for pass 1, mean size = 13.18"