SourceCatalog

class gammapy.catalog.SourceCatalog(table, source_name_key='Source_Name', source_name_alias=())

Bases: abc.ABC

Generic source catalog.

This class can be used directly, but it is mostly used as a base class for the other source catalog classes.

This is a thin wrapper around Table, which is stored in the catalog.table attribute.

Parameters

tableTable

Table with catalog data.

source_name_keystr

Column with source name information.

source_name_aliastuple of str

Columns with source name aliases. This will allow accessing the source row by alias names as well.

Attributes Summary

positions	Source positions as a SkyCoord object.
tag

Methods Summary

description()	Catalog description as a string.
row_index(name)	Look up row index of source by name.
source_name(index)	Look up source name by row index.
to_models(**kwargs)	Create Models object from catalog.

Attributes Documentation

positions

Source positions as a SkyCoord object.

tag

Methods Documentation

abstract classmethod description()

Catalog description as a string.

row_index(name)

Look up row index of source by name.

Parameters

namestr

Source name.

Returns

indexint

Row index of source in table.

source_name(index)

Look up source name by row index.

Parameters

indexint

Row index of source in table.

to_models(**kwargs)

Create Models object from catalog.