[Fri Apr  6 10:29:27 2012] Detection parameters:
  Position = (152.8, 228.9) = 14 23 45.64 19 31 58.5
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 37.9 +/- 9.2
  Background counts = 17.4
  Rate = 0.002 +/- 0.0004

[Fri Apr  6 10:29:27 2012] Off-axis axis estimate = 11.70'
[Fri Apr  6 10:31:30 2012] Using EEF radius (= 12.28 ")to estimate initial spatial extent for simple fitting
[Fri Apr  6 10:31:30 2012] Initial guess for spatial extent in simple fitting = 12.28"
[Fri Apr  6 10:31:30 2012] source mask rpix=2.8, npix_max = 44, mask sum = 42, frac = 0.951
[Fri Apr  6 10:31:30 2012] Giving source the simple spatial ID 19 for pass 0, mean size = 12.28"
[Fri Apr  6 10:59:38 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass0_src19.ximg exists
[Fri Apr  6 10:59:38 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass0_src19_1.ximg exists
[Fri Apr  6 10:59:38 2012] Fit fullrun_pn_xmm0500911001_pi300-10000_cl_pass0_src19 appears to have run properly
[Fri Apr  6 10:59:38 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass0_tfrozen_src19.ximg exists
[Fri Apr  6 10:59:38 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass0_tfrozen_src19_1.ximg exists
[Fri Apr  6 10:59:38 2012] Fit fullrun_pn_xmm0500911001_pi300-10000_cl_pass0_tfrozen_src19 appears to have run properly
[Fri Apr  6 11:22:59 2012] Source 20 is offset by -2.853773 and 5.212493 pixels which is larger than
2 X fitted extent = 1.413384 x 1.413384, not incorporating fit results
[Fri Apr  6 11:22:59 2012] Spatial fit model total counts = 205.853000, observed total counts = 187.000000
[Fri Apr  6 11:22:59 2012] Poor agreement between spatial fit and data for source 20
It may help to tweak spatial fit manually
Not incorporating fit results
[Fri Apr  6 11:22:59 2012] Vigneting correction estimate = 1.000000
[Fri Apr  6 11:22:59 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Fri Apr  6 11:22:59 2012] Assessing source extent using major
[Fri Apr  6 11:22:59 2012] Source does appear to be extended
[Fri Apr  6 11:22:59 2012] Computing asymmetry using major and minor axis, asym = 1.00
[Fri Apr  6 11:23:09 2012] Using EEF radius (= 12.28 ")to estimate initial spatial extent for simple fitting
[Fri Apr  6 11:23:09 2012] Initial guess for spatial extent in simple fitting = 12.28"
[Fri Apr  6 11:23:09 2012] source mask rpix=2.8, npix_max = 44, mask sum = 42, frac = 0.951
[Fri Apr  6 11:23:09 2012] Giving source the simple spatial ID 19 for pass 1, mean size = 12.28"
[Fri Apr  6 11:46:17 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass1_src19.ximg exists
[Fri Apr  6 11:46:17 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass1_src19_1.ximg exists
[Fri Apr  6 11:46:17 2012] Fit fullrun_pn_xmm0500911001_pi300-10000_cl_pass1_src19 appears to have run properly
[Fri Apr  6 11:46:17 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass1_tfrozen_src19.ximg exists
[Fri Apr  6 11:46:17 2012] fullrun_pn_xmm0500911001_pi300-10000_cl_pass1_tfrozen_src19_1.ximg exists
[Fri Apr  6 11:46:17 2012] Fit fullrun_pn_xmm0500911001_pi300-10000_cl_pass1_tfrozen_src19 appears to have run properly
[Fri Apr  6 12:05:22 2012] Spatial fit model total counts = 190.429000, observed total counts = 187.000000
[Fri Apr  6 12:05:22 2012] Offset between fit and detection position for source 20 = 0.145994 pixels
[Fri Apr  6 12:05:22 2012] 186.503100 total counts/ 167.859000 bgd. counts: snr = 1.439028
Spatial fit parameters:
  Offset between fit and detection position for source 20 = 0.145994 pixels
  Position = (153.0, 228.9) = 14 23 45.60 19 31 57.8
  Extent = 3.1" x 3.1", rotation angle = 0
  Source counts = 18.6 +/- 13.7
  Background counts = 167.9
  Rate = 0.002 +/- 0.001
  Deleting source due to low Poisson probability