[Sun Aug 19 09:04:20 2012] Detection parameters:
  Position = (316.5, 188.9) = 0 2 35.21 -30 7 3.9
  Extent = 10.9" x 10.9", rotation angle = 0 degrees
  Source counts = 251.9 +/- 21.8
  Background counts = 48.6
  Rate = 0.005 +/- 0.0004

[Sun Aug 19 09:04:21 2012] Off-axis axis estimate = 8.05'
[Sun Aug 19 09:08:17 2012] Using EEF radius (= 10.45 ")to estimate initial spatial extent for simple fitting
[Sun Aug 19 09:08:17 2012] Initial guess for spatial extent in simple fitting = 10.45"
[Sun Aug 19 09:08:17 2012] source mask rpix=2.4, npix_max = 33, mask sum = 11, frac = 0.326
[Sun Aug 19 09:08:17 2012] Skipping simple spatial due to low active detector fraction
[Sun Aug 19 18:18:50 2012] Vigneting correction estimate = 1.000000
[Sun Aug 19 18:18:50 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Sun Aug 19 18:18:50 2012] Assessing source extent using major
[Sun Aug 19 18:18:50 2012] Source does appear to be extended
[Sun Aug 19 18:18:50 2012] Computing asymmetry using major and minor axis, asym = 1.00
[Sun Aug 19 18:20:17 2012] Using EEF radius (= 10.45 ")to estimate initial spatial extent for simple fitting
[Sun Aug 19 18:20:17 2012] Initial guess for spatial extent in simple fitting = 10.45"
[Sun Aug 19 18:20:17 2012] source mask rpix=2.4, npix_max = 33, mask sum = 11, frac = 0.326
[Sun Aug 19 18:20:17 2012] Skipping simple spatial due to low active detector fraction
[Mon Aug 20 02:29:45 2012] Spatial fit model total counts = 837.879000, observed total counts = 701.000000
[Mon Aug 20 02:29:45 2012] Poor agreement between spatial fit and data for source 53
It may help to tweak spatial fit manually
Not incorporating fit results
[Mon Aug 20 02:29:45 2012] Vigneting correction estimate = 1.000000
[Mon Aug 20 02:29:45 2012] Source flux estimate in the 0.3-8.0 bandpass, Gamma=1.800000 = 0 
[Mon Aug 20 02:29:45 2012] Assessing source extent using major
[Mon Aug 20 02:29:45 2012] Source does appear to be extended
[Mon Aug 20 02:29:45 2012] Computing asymmetry using major and minor axis, asym = 1.00
[Mon Aug 20 02:31:03 2012] XMMSAS src. selection expression = ellipse(27485.327332, 16388.968246, 652.500000, 652.500000, 0.000000, X, Y)
[Mon Aug 20 02:31:03 2012] Writing source region out to fullrun_pn_xmm0041750101_pi300-10000_pass1_cl_src53_src.reg
[Mon Aug 20 02:31:03 2012] Extracting stamp from image fullrun_pn_xmm0041750101_pi300-10000_cl_sm2.00.img.gz, (279, 151) - (354, 226)
[Mon Aug 20 02:31:03 2012] XMMSAS bgd. selection expression = annulus(27485.327332, 16388.968246, 1087.500000, 2175.000000, X, Y) && !ellipse(27625.302920, 18338.251000, 460.920013, 460.920013, 0.000000, X, Y) && !ellipse(29356.289307, 19175.712219, 870.000000, 870.000000, 0.000000, X, Y) && !ellipse(28287.098389, 16896.601883, 870.000000, 870.000000, 0.000000, X, Y) && !ellipse(26446.398438, 15173.961792, 870.000000, 870.000000, 0.000000, X, Y) && !ellipse(25252.652130, 16231.116135, 870.000000, 870.000000, 0.000000, X, Y) && !ellipse(26736.399323, 15946.485046, 870.000000, 870.000000, 0.000000, X, Y)
[Mon Aug 20 02:31:03 2012] Writing fullrun_pn_xmm0041750101_pi300-10000_pass1_cl_src53.gif
[Mon Aug 20 03:33:42 2012] Mean detx,y = (-6308.11, -6655.69) 
[Mon Aug 20 03:33:49 2012] Setting backscal keywords in source and bgd. spectrum
[Mon Aug 20 03:34:11 2012] Binned source spectrum to 10 counts/bin
[Mon Aug 20 03:34:11 2012] Setting source spectrum file to fullrun_pn_xmm0041750101_pi300-10000_pass1_cl_src53_src_b10.pi.gz
[Mon Aug 20 03:34:11 2012] Setting bgd. spectrum file to fullrun_pn_xmm0041750101_pi300-10000_pass1_cl_src53_bgd.pi.gz
[Mon Aug 20 05:19:25 2012] Not generating rmf since RequireSpatial is true but spatial fitting not done
[Mon Aug 20 05:19:25 2012] rmf not generated due to insufficient counts
[Mon Aug 20 08:55:46 2012] Updating aperture counts using extracted products
[Mon Aug 20 08:55:46 2012] Error reading totcts from fullrun_pn_xmm0041750101_pi300-10000_pass1_cl_src53_src_b10.pi.gz
[Mon Aug 20 08:55:52 2012] Calculating source flux in energy range 0.30-8.00
[Mon Aug 20 08:55:52 2012] Using photon index=1.80, rate=0.00511, arf fullrun_pn_xmm0041750101_pi300-10000_pass1_cl_src53.arf
[Mon Aug 20 08:55:52 2012] Assuming count rate is from the 0.30-10.00 bandpass
[Mon Aug 20 08:55:52 2012] Updating source flux to 2.9e-14
[Mon Aug 20 08:58:37 2012] Simple spatial fitting not done (or not done successfully), skipping spectral fitting