[Thu Aug 30 19:35:58 2012] Detection parameters:
  Position = (338.0, 431.7) = 4 33 41.63 18 18 32.8
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 165.4 +/- 17.2
  Background counts = 58.6
  Rate = 0.004 +/- 0.0004

[Thu Aug 30 19:35:59 2012] Off-axis axis estimate = 10.07'
[Thu Aug 30 19:38:26 2012] Using EEF radius (= 11.47 ")to estimate initial spatial extent for simple fitting
[Thu Aug 30 19:38:26 2012] Initial guess for spatial extent in simple fitting = 11.47"
[Thu Aug 30 19:38:26 2012] source mask rpix=2.6, npix_max = 39, mask sum = 21, frac = 0.534
[Thu Aug 30 19:38:26 2012] Giving source the simple spatial ID 17 for pass 0, mean size = 11.47"
[Thu Aug 30 21:07:31 2012] fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_src17.ximg exists
[Thu Aug 30 21:07:31 2012] fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_src17_1.ximg exists
[Thu Aug 30 21:07:31 2012] Fit fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_src17 appears to have run properly
[Thu Aug 30 21:07:31 2012] fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_tfrozen_src17.ximg exists
[Thu Aug 30 21:07:31 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_tfrozen_src17.csv
[Thu Aug 30 21:07:31 2012] fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_tfrozen_src17_1.ximg exists
[Thu Aug 30 21:07:31 2012] Warning: poor agreement between model and actual number of counts may be indicative of a poor fit in csv/fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_tfrozen_src17.csv
[Thu Aug 30 21:07:31 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_tfrozen_src17_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0554770101_pi300-10000_cl_pass0_tfrozen_src17.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
[Thu Aug 30 22:14:53 2012] Warning, spatial fit 17 centroid is now closest to src. 17
[Thu Aug 30 22:14:53 2012] Spatial fit model total counts = 547.613000, observed total counts = 599.000000
[Thu Aug 30 22:14:53 2012] Offset between fit and detection position for source 18 = 5.694850 pixels
[Thu Aug 30 22:14:53 2012] Warning, changing simple spatial fit ID from 17 to 18
[Thu Aug 30 22:14:53 2012] 543.678018 total counts/ 543.678000 bgd. counts: snr = 0.000001
Spatial fit parameters:
  Offset between fit and detection position for source 18 = 5.694850 pixels
  Position = (333.6, 435.4) = 4 33 42.95 18 18 49.4
  Extent = 22.5" x 22.5", rotation angle = 0
  Source counts = 0.0 +/- 23.3
  Background counts = 543.7
  Rate = 5e-10 +/- 0.0006
  Deleting source due to low Poisson probability