Updated almost 12 years ago by 
Knödlseder Jürgen
Validation of Pass 7 IRFs¶
GammaLib-00-06-00¶
The initial validation of the Pass 7 IRFs has been done using GammaLib-00-06-00. Here the results for several datasets.
week_00000_roi05_200_20000_10bin_extmod_galpropv02_Crab_ltcube¶
| Parameter |
gtlike |
gammalib (with correction) |
gammalib (w/o correction) |
| Counts (for same flux) |
814.987 |
842.551 |
827.99 |
| Flux |
24.23 +/- 1.50 |
19.23 +/- 1.21 |
- |
| Spectral index |
2.125 +/- 0.048 |
2.039 +/- 0.051 |
- |
| Extragalactic diffuse |
2.286 +/- 0.462 |
2.896 +/- 0.442 |
- |
| Galactic diffuse |
0.862 +/- 0.065 |
0.863 +/- 0.064 |
- |
gtlike results¶
Crab:
Integral: 24.2369 +/- 1.49572
Index: -2.12467 +/- 0.0476363
LowerLimit: 100
UpperLimit: 500000
TS value: 1300.37
Flux: 2.41076e-06 +/- 1.50551e-07 photons/cm^2/s
Total number of model events: 814.987
Extragal_diffuse:
Normalization: 2.28565 +/- 0.462091
Flux: 0.000472695 +/- 9.55313e-05 photons/cm^2/s
Galactic_diffuse:
Value: 0.861504 +/- 0.0652024
Flux: 0.00041505 +/- 3.14108e-05 photons/cm^2/s
WARNING: Fit may be bad in range [100, 1258.93] (MeV)
WARNING: Fit may be bad in range [1995.26, 5011.87] (MeV)
Total number of observed counts: 2211
Total number of model events: 2211
-log(Likelihood): 10794.50987
GammaLib Results with efficiency correction¶
=== GOptimizerLM ===
Optimized function value ..: 10814.4
Absolute precision ........: 1e-06
Optimization status .......: converged
Number of parameters ......: 13
Number of free parameters .: 4
Number of iterations ......: 9
Lambda ....................: 1e-12
=== GObservations ===
Number of observations ....: 1
Number of predicted events : 2211
=== GModels ===
Number of models ..........: 3
Number of parameters ......: 13
=== GModelDiffuseSource ===
Name ......................: Extragal_diffuse
Instruments ...............: all
Model type ................: "ConstantValue" * "FileFunction" * "Constant"
Number of parameters ......: 3
Number of spatial par's ...: 1
Value ....................: 1 [0,10] (fixed,scale=1,gradient)
Number of spectral par's ..: 1
Normalization ............: 2.89602 +/- 0.441842 [0,1000] (free,scale=1,gradient)
Number of temporal par's ..: 1
Constant .................: 1 (relative value) (fixed,scale=1,gradient)
=== GModelDiffuseSource ===
Name ......................: Galactic_diffuse
Instruments ...............: all
Model type ................: "MapCubeFunction" * "ConstantValue" * "Constant"
Number of parameters ......: 3
Number of spatial par's ...: 1
Normalization ............: 1 [0.001,1000] (fixed,scale=1,gradient)
Number of spectral par's ..: 1
Value ....................: 0.862952 +/- 0.0637931 [0,1000] (free,scale=1,gradient)
Number of temporal par's ..: 1
Constant .................: 1 (relative value) (fixed,scale=1,gradient)
=== GModelPointSource ===
Name ......................: Crab
Instruments ...............: all
Model type ................: "SkyDirFunction" * "PowerLaw2" * "Constant"
Number of parameters ......: 7
Number of spatial par's ...: 2
RA .......................: 83.6331 [-360,360] deg (fixed,scale=1)
DEC ......................: 22.0145 [-90,90] deg (fixed,scale=1)
Number of spectral par's ..: 4
Integral .................: 1.92253e-06 +/- 1.20962e-07 [1e-14,0.0001] ph/cm2/s (free,scale=1e-07,gradient)
Index ....................: -2.03863 +/- 0.0509223 [-5,5] (free,scale=1,gradient)
LowerLimit ...............: 100 [10,1e+06] MeV (fixed,scale=1)
UpperLimit ...............: 500000 [10,1e+06] MeV (fixed,scale=1)
Number of temporal par's ..: 1
Constant .................: 1 (relative value) (fixed,scale=1,gradient)
week_00000_P7_roi05_100_200_01bin_extmod_galprop_crab¶
Analysis performed with fixed spectral index over a narrow energy range of 100-200 MeV.
| Parameter |
gtlike |
gammalib (with correction) |
| -logL |
2395.656 |
2396.97 |
| Predicted counts |
658.017 |
658 |
| Flux |
26.10 +/- 3.10 |
15.58 +/- 1.95 |
| Spectral index |
-2.1 |
-2.1 |
| Extragalactic diffuse |
3.47 +/- 1.35 |
3.95 +/- 1.29 |
| Galactic diffuse |
0.68 +/- 0.36 |
0.71 +/- 0.40 |
gtlike results¶
Crab:
Integral: 26.1036 +/- 3.10488
Index: -2.1
LowerLimit: 100
UpperLimit: 500000
TS value: 108.858
Flux: 1.39271e-06 +/- 1.65655e-07 photons/cm^2/s
Extragal_diffuse:
Normalization: 3.47027 +/- 1.34533
Flux: 0.000427812 +/- 0.000165849 photons/cm^2/s
Galactic_diffuse:
Value: 0.679862 +/- 0.362457
Flux: 0.000134393 +/- 7.16491e-05 photons/cm^2/s
WARNING: Fit may be bad in range [100, 200] (MeV)
Total number of observed counts: 658
Total number of model events: 658.017
-log(Likelihood): 2395.656269
GammaLib Results with efficiency correction¶
2012-07-11T21:55:18: === GOptimizerLM ===
2012-07-11T21:55:18: Optimized function value ..: 2396.97
2012-07-11T21:55:18: Absolute precision ........: 1e-06
2012-07-11T21:55:18: Optimization status .......: converged
2012-07-11T21:55:18: Number of parameters ......: 13
2012-07-11T21:55:18: Number of free parameters .: 3
2012-07-11T21:55:18: Number of iterations ......: 6
2012-07-11T21:55:18: Lambda ....................: 1e-09
2012-07-11T21:55:18: Maximum log likelihood ....: -2396.97
2012-07-11T21:55:18: Npred .....................: 658
2012-07-11T21:55:18: === GModels ===
2012-07-11T21:55:18: Number of models ..........: 3
2012-07-11T21:55:18: Number of parameters ......: 13
2012-07-11T21:55:18: === GModelDiffuseSource ===
2012-07-11T21:55:18: Name ......................: Extragal_diffuse
2012-07-11T21:55:18: Instruments ...............: all
2012-07-11T21:55:18: Model type ................: "ConstantValue" * "FileFunction" * "Constant"
2012-07-11T21:55:18: Number of parameters ......: 3
2012-07-11T21:55:18: Number of spatial par's ...: 1
2012-07-11T21:55:18: Value ....................: 1 [0,10] (fixed,scale=1,gradient)
2012-07-11T21:55:18: Number of spectral par's ..: 1
2012-07-11T21:55:18: Normalization ............: 3.95168 +/- 1.29363 [0,1000] (free,scale=1,gradient)
2012-07-11T21:55:18: Number of temporal par's ..: 1
2012-07-11T21:55:18: Constant .................: 1 (relative value) (fixed,scale=1,gradient)
2012-07-11T21:55:18: === GModelDiffuseSource ===
2012-07-11T21:55:18: Name ......................: Galactic_diffuse
2012-07-11T21:55:18: Instruments ...............: all
2012-07-11T21:55:18: Model type ................: "MapCubeFunction" * "ConstantValue" * "Constant"
2012-07-11T21:55:18: Number of parameters ......: 3
2012-07-11T21:55:18: Number of spatial par's ...: 1
2012-07-11T21:55:18: Normalization ............: 1 [0.001,1000] (fixed,scale=1,gradient)
2012-07-11T21:55:18: Number of spectral par's ..: 1
2012-07-11T21:55:18: Value ....................: 0.71251 +/- 0.398651 [0,1000] (free,scale=1,gradient)
2012-07-11T21:55:18: Number of temporal par's ..: 1
2012-07-11T21:55:18: Constant .................: 1 (relative value) (fixed,scale=1,gradient)
2012-07-11T21:55:18: === GModelPointSource ===
2012-07-11T21:55:18: Name ......................: Crab
2012-07-11T21:55:18: Instruments ...............: all
2012-07-11T21:55:18: Model type ................: "SkyDirFunction" * "PowerLaw2" * "Constant"
2012-07-11T21:55:18: Number of parameters ......: 7
2012-07-11T21:55:18: Number of spatial par's ...: 2
2012-07-11T21:55:18: RA .......................: 83.6331 [-360,360] deg (fixed,scale=1)
2012-07-11T21:55:18: DEC ......................: 22.0145 [-90,90] deg (fixed,scale=1)
2012-07-11T21:55:18: Number of spectral par's ..: 4
2012-07-11T21:55:18: Integral .................: 1.55815e-06 +/- 1.94647e-07 [1e-14,0.0001] ph/cm2/s (free,scale=1e-07,gradient)
2012-07-11T21:55:18: Index ....................: -2.1 [-5,5] (fixed,scale=1,gradient)
2012-07-11T21:55:18: LowerLimit ...............: 100 [10,1e+06] MeV (fixed,scale=1)
2012-07-11T21:55:18: UpperLimit ...............: 500000 [10,1e+06] MeV (fixed,scale=1)
2012-07-11T21:55:18: Number of temporal par's ..: 1
2012-07-11T21:55:18: Constant .................: 1 (relative value) (fixed,scale=1,gradient)
week_00000_P7_roi05_1000_2000_01bin_extmod_galprop_crab¶
Analysis performed with fixed spectral index over a narrow energy range from 1-2 GeV.
| Parameter |
gtlike |
gammalib (with correction) |
| -logL |
874.856 |
879.393 |
| Predicted counts |
213.042 |
213 |
| Flux |
27.72 +/- 3.30 |
25.58 +/- 3.21 |
| Spectral index |
-2.1 |
-2.1 |
| Extragalactic diffuse |
0.00019418 +/- 0.0433937 |
0 +/- 5.5129 |
| Galactic diffuse |
0.95 +/- 0.09 |
0.85 +/- 0.25 |
gtlike results¶
Crab:
Integral: 27.7185 +/- 3.29829
Index: -2.1
LowerLimit: 100
UpperLimit: 500000
TS value: 335.184
Flux: 1.17471e-07 +/- 1.39781e-08 photons/cm^2/s
Extragal_diffuse:
Normalization: 0.00019418 +/- 0.0433937
Flux: 7.9062e-10 +/- 1.7668e-07 photons/cm^2/s
Galactic_diffuse:
Value: 0.952101 +/- 0.092758
Flux: 2.87516e-05 +/- 2.8011e-06 photons/cm^2/s
WARNING: Fit may be bad in range [1000, 2000] (MeV)
Total number of observed counts: 213
Total number of model events: 213.042
-log(Likelihood): 874.8585611
GammaLib Results with efficiency correction¶
2012-07-11T22:11:46: === GOptimizerLM ===
2012-07-11T22:11:46: Optimized function value ..: 879.393
2012-07-11T22:11:46: Absolute precision ........: 1e-06
2012-07-11T22:11:46: Optimization status .......: converged
2012-07-11T22:11:46: Number of parameters ......: 13
2012-07-11T22:11:46: Number of free parameters .: 3
2012-07-11T22:11:46: Number of iterations ......: 23
2012-07-11T22:11:46: Lambda ....................: 1
2012-07-11T22:11:46: Maximum log likelihood ....: -879.393
2012-07-11T22:11:46: Npred .....................: 213
2012-07-11T22:11:46: === GModels ===
2012-07-11T22:11:46: Number of models ..........: 3
2012-07-11T22:11:46: Number of parameters ......: 13
2012-07-11T22:11:46: === GModelDiffuseSource ===
2012-07-11T22:11:46: Name ......................: Extragal_diffuse
2012-07-11T22:11:46: Instruments ...............: all
2012-07-11T22:11:46: Model type ................: "ConstantValue" * "FileFunction" * "Constant"
2012-07-11T22:11:46: Number of parameters ......: 3
2012-07-11T22:11:46: Number of spatial par's ...: 1
2012-07-11T22:11:46: Value ....................: 1 [0,10] (fixed,scale=1,gradient)
2012-07-11T22:11:46: Number of spectral par's ..: 1
2012-07-11T22:11:46: Normalization ............: 0 +/- 5.5129 [0,1000] (free,scale=1,gradient)
2012-07-11T22:11:46: Number of temporal par's ..: 1
2012-07-11T22:11:46: Constant .................: 1 (relative value) (fixed,scale=1,gradient)
2012-07-11T22:11:46: === GModelDiffuseSource ===
2012-07-11T22:11:46: Name ......................: Galactic_diffuse
2012-07-11T22:11:46: Instruments ...............: all
2012-07-11T22:11:46: Model type ................: "MapCubeFunction" * "ConstantValue" * "Constant"
2012-07-11T22:11:46: Number of parameters ......: 3
2012-07-11T22:11:46: Number of spatial par's ...: 1
2012-07-11T22:11:46: Normalization ............: 1 [0.001,1000] (fixed,scale=1,gradient)
2012-07-11T22:11:46: Number of spectral par's ..: 1
2012-07-11T22:11:46: Value ....................: 0.84716 +/- 0.248145 [0,1000] (free,scale=1,gradient)
2012-07-11T22:11:46: Number of temporal par's ..: 1
2012-07-11T22:11:46: Constant .................: 1 (relative value) (fixed,scale=1,gradient)
2012-07-11T22:11:46: === GModelPointSource ===
2012-07-11T22:11:46: Name ......................: Crab
2012-07-11T22:11:46: Instruments ...............: all
2012-07-11T22:11:46: Model type ................: "SkyDirFunction" * "PowerLaw2" * "Constant"
2012-07-11T22:11:46: Number of parameters ......: 7
2012-07-11T22:11:46: Number of spatial par's ...: 2
2012-07-11T22:11:46: RA .......................: 83.6331 [-360,360] deg (fixed,scale=1)
2012-07-11T22:11:46: DEC ......................: 22.0145 [-90,90] deg (fixed,scale=1)
2012-07-11T22:11:46: Number of spectral par's ..: 4
2012-07-11T22:11:46: Integral .................: 2.55776e-06 +/- 3.20673e-07 [1e-14,0.0001] ph/cm2/s (free,scale=1e-07,gradient)
2012-07-11T22:11:46: Index ....................: -2.1 [-5,5] (fixed,scale=1,gradient)
2012-07-11T22:11:46: LowerLimit ...............: 100 [10,1e+06] MeV (fixed,scale=1)
2012-07-11T22:11:46: UpperLimit ...............: 500000 [10,1e+06] MeV (fixed,scale=1)
2012-07-11T22:11:46: Number of temporal par's ..: 1
2012-07-11T22:11:46: Constant .................: 1 (relative value) (fixed,scale=1,gradient)