[Tue Aug 14 13:08:16 2012] Detection parameters:
  Position = (352.9, 144.9) = 5 39 43.56 -69 31 49.3
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 69.0 +/- 13.2
  Background counts = 24.4
  Rate = 0.007 +/- 0.001

[Tue Aug 14 13:08:17 2012] Off-axis axis estimate = 11.81'
[Tue Aug 14 13:12:30 2012] Using EEF radius (= 12.33 ")to estimate initial spatial extent for simple fitting
[Tue Aug 14 13:12:30 2012] Initial guess for spatial extent in simple fitting = 12.33"
[Tue Aug 14 13:12:30 2012] source mask rpix=2.8, npix_max = 44, mask sum = 36, frac = 0.809
[Tue Aug 14 13:12:30 2012] Giving source the simple spatial ID 38 for pass 0, mean size = 12.33"
[Tue Aug 14 17:40:10 2012] fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_src38.ximg exists
[Tue Aug 14 17:40:10 2012] fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_src38_1.ximg exists
[Tue Aug 14 17:40:10 2012] Fit fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_src38 appears to have run properly
[Tue Aug 14 17:40:11 2012] fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_tfrozen_src38.ximg exists
[Tue Aug 14 17:40:11 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_tfrozen_src38.csv
[Tue Aug 14 17:40:11 2012] fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_tfrozen_src38_1.ximg exists
[Tue Aug 14 17:40:11 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_tfrozen_src38.csv
[Tue Aug 14 17:40:11 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_tfrozen_src38_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0117730501_pi300-10000_cl_pass0_tfrozen_src38.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 Aug 14 22:03:20 2012] Warning, spatial fit 38 centroid is now closest to src. 19
[Tue Aug 14 22:03:20 2012] Spatial fit model total counts = 528.133000, observed total counts = 526.000000
[Tue Aug 14 22:03:20 2012] Offset between fit and detection position for source 40 = 0.848778 pixels
[Tue Aug 14 22:03:20 2012] Warning, changing simple spatial fit ID from 38 to 59
[Tue Aug 14 22:03:20 2012] 516.580000 total counts/ 516.580000 bgd. counts: snr = 0.000000
Spatial fit parameters:
  Offset between fit and detection position for source 40 = 0.848778 pixels
  Position = (352.3, 144.3) = 5 39 44.06 -69 31 51.9
  Extent = 3.0" x 3.0", rotation angle = 0
  Source counts = 0.0 +/- 22.7
  Background counts = 516.6
  Rate = 5e-17 +/- 0.002
  Deleting source due to low Poisson probability