[Fri Apr  6 14:06:57 2012] Detection parameters:
  Position = (230.5, 309.3) = 1 7 42.12 32 26 45.5
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 463.6 +/- 43.6
  Background counts = 176.0
  Rate = 0.01 +/- 0.001

[Fri Apr  6 14:06:57 2012] Off-axis axis estimate = 4.99'
[Fri Apr  6 14:10:03 2012] Using EEF radius (= 8.92 ")to estimate initial spatial extent for simple fitting
[Fri Apr  6 14:10:03 2012] Initial guess for spatial extent in simple fitting = 8.92"
[Fri Apr  6 14:10:03 2012] source mask rpix=2.1, npix_max = 26, mask sum = 3, frac = 0.115
[Fri Apr  6 14:10:03 2012] Skipping simple spatial due to low active detector fraction
[Fri Apr  6 15:32:36 2012] Spatial fit model total counts = 2320.950000, observed total counts = 1897.000000
[Fri Apr  6 15:32:36 2012] Poor agreement between spatial fit and data for source 18
It may help to tweak spatial fit manually
Not incorporating fit results
[Fri Apr  6 15:32:36 2012] Vigneting correction estimate = 1.000000
[Fri Apr  6 15:32:36 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Fri Apr  6 15:32:36 2012] Assessing source extent using major
[Fri Apr  6 15:32:36 2012] Source does appear to be extended
[Fri Apr  6 15:32:36 2012] Computing asymmetry using major and minor axis, asym = 1.00
[Fri Apr  6 15:32:50 2012] Using EEF radius (= 8.92 ")to estimate initial spatial extent for simple fitting
[Fri Apr  6 15:32:50 2012] Initial guess for spatial extent in simple fitting = 8.92"
[Fri Apr  6 15:32:50 2012] source mask rpix=2.1, npix_max = 26, mask sum = 3, frac = 0.115
[Fri Apr  6 15:32:50 2012] Skipping simple spatial due to low active detector fraction
[Fri Apr  6 16:50:59 2012] Source 18 is offset by -2.791394 and -4.219780 pixels which is larger than
2 X fitted extent = 1.012717 x 1.012717, not incorporating fit results
[Fri Apr  6 16:50:59 2012] Vigneting correction estimate = 1.000000
[Fri Apr  6 16:50:59 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Fri Apr  6 16:50:59 2012] Assessing source extent using major
[Fri Apr  6 16:50:59 2012] Source does appear to be extended
[Fri Apr  6 16:50:59 2012] Computing asymmetry using major and minor axis, asym = 1.00
[Fri Apr  6 16:51:12 2012] XMMSAS src. selection expression = ellipse(20004.994690, 26856.895172, 652.500000, 652.500000, 0.000000, X, Y)
[Fri Apr  6 16:51:12 2012] Writing source region out to fullrun_pn_xmm0551720101_pi300-10000_pass1_cl_src18_src.reg
[Fri Apr  6 16:51:12 2012] Extracting stamp from image fullrun_pn_xmm0551720101_pi300-10000_cl_sm2.00.img.gz, (193, 272) - (268, 347)
[Fri Apr  6 16:51:12 2012] XMMSAS bgd. selection expression = annulus(20004.994690, 26856.895172, 1087.500000, 2175.000000, X, Y) && !ellipse(19993.859497, 27819.919434, 870.000000, 870.000000, 0.000000, X, Y)
[Fri Apr  6 16:51:12 2012] Writing fullrun_pn_xmm0551720101_pi300-10000_pass1_cl_src18.gif
[Fri Apr  6 17:01:40 2012] Mean detx,y = (4826.17, 670.11) 
[Fri Apr  6 17:01:42 2012] Setting backscal keywords in source and bgd. spectrum
[Fri Apr  6 17:02:03 2012] Binned source spectrum to 10 counts/bin
[Fri Apr  6 17:02:03 2012] Setting source spectrum file to fullrun_pn_xmm0551720101_pi300-10000_pass1_cl_src18_src_b10.pi.gz
[Fri Apr  6 17:02:03 2012] Setting bgd. spectrum file to fullrun_pn_xmm0551720101_pi300-10000_pass1_cl_src18_bgd.pi.gz
[Fri Apr  6 17:29:12 2012] Not generating rmf since RequireSpatial is true but spatial fitting not done
[Fri Apr  6 17:29:12 2012] rmf not generated due to insufficient counts
[Fri Apr  6 18:32:48 2012] Updating aperture counts using extracted products
[Fri Apr  6 18:32:48 2012] Error reading totcts from fullrun_pn_xmm0551720101_pi300-10000_pass1_cl_src18_src_b10.pi.gz
[Fri Apr  6 18:32:49 2012] Calculating source flux in energy range 0.30-8.00
[Fri Apr  6 18:32:49 2012] Using photon index=1.80, rate=0.0103, arf fullrun_pn_xmm0551720101_pi300-10000_pass1_cl_src18.arf
[Fri Apr  6 18:32:49 2012] Assuming count rate is from the 0.30-10.00 bandpass
[Fri Apr  6 18:32:49 2012] Updating source flux to 8.8e-14
[Fri Apr  6 18:34:19 2012] Simple spatial fitting not done (or not done successfully), skipping spectral fitting