[Sat Aug 18 08:37:03 2012] Detection parameters:
  Position = (422.5, 372.5) = 0 23 43.73 64 14 7.2
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 170.3 +/- 31.2
  Background counts = 366.0
  Rate = 0.006 +/- 0.001

[Sat Aug 18 08:37:04 2012] Off-axis axis estimate = 10.48'
[Sat Aug 18 08:51:49 2012] Using EEF radius (= 11.67 ")to estimate initial spatial extent for simple fitting
[Sat Aug 18 08:51:49 2012] Initial guess for spatial extent in simple fitting = 11.67"
[Sat Aug 18 08:51:49 2012] source mask rpix=2.7, npix_max = 40, mask sum = 49, frac = 1.210
[Sat Aug 18 08:51:49 2012] Giving source the simple spatial ID 71 for pass 0, mean size = 11.67"
[Sun Aug 19 21:47:03 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_src71.ximg exists
[Sun Aug 19 21:47:03 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_src71_1.ximg exists
[Sun Aug 19 21:47:03 2012] Fit fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_src71 appears to have run properly
[Sun Aug 19 21:47:05 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src71.ximg exists
[Sun Aug 19 21:47:05 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_src71.csv
[Sun Aug 19 21:47:05 2012] fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src71_1.ximg exists
[Sun Aug 19 21:47:05 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_src71.csv
[Sun Aug 19 21:47:05 2012] It looks like the fit did not converge
You should probably delete fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src71_1.ximg
Either tweak this fit manually starting from fullrun_pn_xmm0412380101_pi300-10000_cl_pass0_tfrozen_src71.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] Warning, spatial fit 71 centroid is now closest to src. 80
[Sun Aug 26 22:07:10 2012] Spatial fit model total counts = 2667.040000, observed total counts = 2471.000000
[Sun Aug 26 22:07:10 2012] Offset between fit and detection position for source 79 = 1.005438 pixels
[Sun Aug 26 22:07:10 2012] Warning, changing simple spatial fit ID from 71 to 72
[Sun Aug 26 22:07:10 2012] 2641.584400 total counts/ 2584.480000 bgd. counts: snr = 1.123267
Spatial fit parameters:
  Offset between fit and detection position for source 79 = 1.005438 pixels
  Position = (422.4, 371.5) = 0 23 43.77 64 14 3.7
  Extent = 6.9 (2.8-20.8)", rotation angle = 0
  Source counts = 57.1 +/- 51.4
  Background counts = 2584.5
  Rate = 0.004 +/- 0.003
  Deleting source due to low Poisson probability