HeasarcClass

class astroquery.heasarc.HeasarcClass

Bases: astroquery.query.BaseQuery

HEASARC query class.

For a list of available HEASARC mission tables, visit:

https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3catindex.pl

Attributes Summary

TIMEOUT
URL
coord_systems

Methods Summary

query(*args, **kwargs)	Queries the service and returns a table object.
query_async(request_payload[, cache, url])	Submit a query based on a given request_payload.
query_mission_cols(mission[, cache, ...])	Returns a list containing the names of columns that can be returned for a given mission table.
query_mission_list([cache, get_query_payload])	Returns a list of all available mission tables with descriptions
query_object(*args, **kwargs)	Queries the service and returns a table object.
query_object_async(object_name, mission[, ...])	Query around a specific object within a given mission catalog
query_region(*args, **kwargs)	Queries the service and returns a table object.
query_region_async(position, mission, radius)	Query around specific set of coordinates within a given mission catalog.

Attributes Documentation

TIMEOUT = 30

URL = 'https://heasarc.gsfc.nasa.gov/db-perl/W3Browse/w3query.pl'

coord_systems = ['fk5', 'fk4', 'equatorial', 'galactic']

Methods Documentation

query(*args, **kwargs)

Queries the service and returns a table object.

Submit a query based on a given request_payload. This allows detailed control of the query to be submitted.

Returns

tableA Table object.

query_async(request_payload, cache=True, url=None)

Submit a query based on a given request_payload. This allows detailed control of the query to be submitted.

query_mission_cols(mission, cache=True, get_query_payload=False, **kwargs)

Returns a list containing the names of columns that can be returned for a given mission table. By default all column names are returned.

Parameters

missionstr

Mission table (short name) to search from

fieldsstr, optional

Return format for columns from the server available options: * Standard : Return default table columns * All (default) : Return all table columns * <custom> : User defined csv list of columns to be returned

All other parameters have no effect

query_mission_list(cache=True, get_query_payload=False)

Returns a list of all available mission tables with descriptions

query_object(*args, **kwargs)

Queries the service and returns a table object.

Query around a specific object within a given mission catalog

Parameters

object_namestr

Object to query around. To set search radius use the ‘radius’ parameter.

missionstr

Mission table to search from

**kwargs

see _args_to_payload for list of additional parameters that can be used to refine search query

Returns

tableA Table object.

query_object_async(object_name, mission, cache=True, get_query_payload=False, **kwargs)

Query around a specific object within a given mission catalog

Parameters

object_namestr

Object to query around. To set search radius use the ‘radius’ parameter.

missionstr

Mission table to search from

**kwargs

see _args_to_payload for list of additional parameters that can be used to refine search query

query_region(*args, **kwargs)

Queries the service and returns a table object.

Query around specific set of coordinates within a given mission catalog. Method first converts the supplied coordinates into the FK5 reference frame and searches for sources from there. Because of this, returned offset coordinates may look different than the ones supplied.

Parameters

positionastropy.coordinates or str

The position around which to search. It may be specified as a string in which case it is resolved using online services or as the appropriate astropy.coordinates object. ICRS coordinates may also be entered as a string. (adapted from nrao module)

missionstr

Mission table to search from

radius

Astropy Quantity object, or a string that can be parsed into one. e.g., ‘1 degree’ or 1*u.degree.

**kwargs

see _args_to_payload for list of additional parameters that can be used to refine search query

Returns

tableA Table object.

query_region_async(position, mission, radius, cache=True, get_query_payload=False, **kwargs)

Query around specific set of coordinates within a given mission catalog. Method first converts the supplied coordinates into the FK5 reference frame and searches for sources from there. Because of this, returned offset coordinates may look different than the ones supplied.

Parameters

positionastropy.coordinates or str

The position around which to search. It may be specified as a string in which case it is resolved using online services or as the appropriate astropy.coordinates object. ICRS coordinates may also be entered as a string. (adapted from nrao module)

missionstr

Mission table to search from

radius

Astropy Quantity object, or a string that can be parsed into one. e.g., ‘1 degree’ or 1*u.degree.

**kwargs

see _args_to_payload for list of additional parameters that can be used to refine search query