ecpi.simu.lib.sources module¶

Sources simulation module

Summary¶

Classes:

`AbstractModelSrc`	Base object for the creation of the shadowgram model of different sources
`ListModelPointSrcFromCatalog`	Manage list of point source
`ModelCxbFlat`	model for a flat CXB without spectrum
`ModelCxbFlatBasedEnergy`	Model for a geometrically flat CXB with energy dependence as specified with the Moretti spectrum.
`ModelCxbShapeBased`	Model for a CXB without spectrum based on the pixel solid angle shape
`ModelCxbShapeBasedEnergy`	Model for an energy dependent CXB based on the pixel solid angle shape
`ModelEarthMoretti`	Model for an energy dependent CXB in the presence of Earth in FOV.
`ModelFlat`	Generic class for flat model
`ModelInternalNoise`	Model for a flat internal noise, impact on detector of particles in the terrestrial environment The internal noise is independent from wavelength
`ModelMeanCXBShapeBasedEnergyWithEarthCalculator`	Model for an energy dependent CXB in the presence of Earth in FOV.
`ModelMeanCXBShapeBasedEnergyWithEarthSimulator`	Model for an energy dependent CXB in the presence of Earth in FOV.
`ModelPointSrcIRF`	model for point source
`ModelPointSrcSinElev`	Model for point source.

Class diagram:

_images/classes_ecpi.simu.lib.sources.png

Reference¶

class AbstractModelSrc[source]¶

Bases: abc.ABC

Base object for the creation of the shadowgram model of different sources

abstract get_model(obs_time=None)[source]¶

return detector image of model of the source

Parameters: obs_time (float) – observation time in s
Returns: detector image of model of the source
Return type: array(80x80) of float

get_noisy_model(obs_time=None)[source]¶

Return the shadowgram model with poisson noise.

Parameters: obs_time (float) – observation time in seconds

property name¶: Get name.

update()[source]¶: return True if the model is already update with position or not yet defined

class ListModelPointSrcFromCatalog(use_irf=True)[source]¶

Bases: object

Manage list of point source

init_with_cat_astro(astro_cat)[source]¶

return a list of ShadowModelPointSrcSinElev from a catalog

attitude used to define fov

Parameters: astro_cat – table with intensoty column

init_with_cat_fov(cat_fov)[source]¶

Initialize catalog with sources in FOV.

Parameters: cat_fov (CatalogFovEclairs object) – source catalog.
Returns: sources infos
Return type: dict

init_with_cat_swift_2012()[source]¶: return a list of ShadowModelPointSrcSinElev from the SWIFT/BAT catalog attitude used to define fov

init_with_custom_cat(path_cat)[source]¶

return a list of ShadowModelPointSrcSinElev from a custom catalog.

Parameters: path_cat (str) – path to custom source catalog.
Returns: sources infos
Return type: dict

set_use_irf(use_irf)[source]¶

class ModelCxbFlat(cxb_level=1)[source]¶

Bases: ecpi.simu.lib.sources.ModelFlat

model for a flat CXB without spectrum

class ModelCxbFlatBasedEnergy(solidangle_filename='__to_remove__')[source]¶

Bases: ecpi.simu.lib.sources.AbstractModelSrc

Model for a geometrically flat CXB with energy dependence as specified with the Moretti spectrum.

get_model(obs_time=None)[source]¶

return the shadowgram model

Parameters: obs_time (float) – observation time in s
Returns: cxb detector image in ph/pix
Return type: array(float)

Warning

a factor 0.8 is added to this model to

make the count rate equal to the CXB shape case. TBI.

class ModelCxbShapeBased(cxb_level=3035, solidangle_filename='__to_remove__')[source]¶

Bases: ecpi.simu.lib.sources.AbstractModelSrc

Model for a CXB without spectrum based on the pixel solid angle shape

..warning :: dead code ?

get_model(obs_time=None)[source]¶

return the shadowgram model

Parameters: obs_time (float) – observation time in s
Returns: cxb detector image in ph/pix
Return type: array(float)

class ModelCxbShapeBasedEnergy(solidangle_filename='__to_remove__')[source]¶

Bases: ecpi.simu.lib.sources.AbstractModelSrc

Model for an energy dependent CXB based on the pixel solid angle shape

get_model(obs_time=None)[source]¶

return the shadowgram model

..note: RMF must be handled here at some point ! ..note: doc to Moretti’s model: flux = integral between e_min and e_max of eq. 4 of https://arxiv.org/pdf/0811.1444.pdf

Parameters: obs_time (float) – observation time in s
Returns: cxb detector image in ph/pix
Return type: array(float)

class ModelEarthMoretti(limb=None, vec_earth=None)[source]¶

Bases: ecpi.simu.lib.sources.AbstractModelSrc

Model for an energy dependent CXB in the presence of Earth in FOV. CXB model is computed with mean shape.

get_model(obs_time=None)[source]¶

Return the shadowgram model.

Parameters: obs_time (float) – observation time in s
Returns: shadowgram
Return type: 2D array(float) with shape 80x80

update()[source]¶

constructor

Parameters

limb (float) – limb angle in degree
vec_earth (list/array of size 3) – earth direction unit vector
use_numba – whether or not to use pre-compiled function

when computing solid angle. Default is True. :type use_numba: bool

..note: sum of solid angle with real mask accounts for cos theta

class ModelFlat(level)[source]¶

Bases: ecpi.simu.lib.sources.AbstractModelSrc

Generic class for flat model

get_model(obs_time=None)[source]¶

return the shadowgram model

Parameters: obs_time (float) – observation time in s
Returns: noise detector image in ph/pix
Return type: array(float)

class ModelInternalNoise(noise_level=0.003)[source]¶

Bases: ecpi.simu.lib.sources.ModelFlat

Model for a flat internal noise, impact on detector of particles in the terrestrial environment The internal noise is independent from wavelength

get_model(obs_time=None)[source]¶

return the shadowgram model

Parameters: obs_time (float) – observation time in s
Returns: noise detector image in ph/pix
Return type: array(float)

class ModelMeanCXBShapeBasedEnergyWithEarthCalculator(limb=None, vec_earth=None, use_numba=True)[source]¶

Bases: ecpi.simu.lib.sources._ModelMeanCXBShapeBasedEnergyWithEarth

Model for an energy dependent CXB in the presence of Earth in FOV. CXB model is computed with mean shape.

class ModelMeanCXBShapeBasedEnergyWithEarthSimulator[source]¶

Bases: ecpi.simu.lib.sources._ModelMeanCXBShapeBasedEnergyWithEarth

Model for an energy dependent CXB in the presence of Earth in FOV. CXB model is computed with a ray-tracing method.

class ModelPointSrcIRF(info_src)[source]¶

Bases: ecpi.simu.lib.sources.AbstractModelSrc

model for point source

S_cpt = 0¶

get_model(obs_time=None)[source]¶

return the shadowgram model

intensity given in ph/cm2/s in the current channel.

Parameters: obs_time (float) – observation time in s
Returns: cxb detector image in ph/pix
Return type: array(float)

set_coef_hors_axis()[source]¶

Return coefficient associated to cos theta or sin elev off axis effect.

Returns: coefficient (units ?)
Return type: array(float)

class ModelPointSrcSinElev(info_src)[source]¶

Bases: ecpi.simu.lib.sources.ModelPointSrcIRF

Model for point source. Elevation angle is in degree.

set_coef_hors_axis()[source]¶: This function must be renamed as ‘get_coef_hors_axis’. Verbose argument is unused.