IrsaClass

class astroquery.ipac.irsa.IrsaClass

Bases: BaseVOQuery

Attributes Summary

sia
ssa
tap

Methods Summary

list_catalogs(*[, full, filter, cache])	Return information of available IRSA catalogs.
list_collections(*[, servicetype, filter])	Return information of available IRSA SIAv2 collections to be used in query_sia queries.
list_columns(catalog, *[, full])	Return list of columns of a given IRSA catalog.
print_catalogs()
query_region([coordinates, catalog, ...])	Queries the IRSA TAP server around a coordinate and returns a Table object.
query_sia(*[, pos, band, time, pol, ...])	Use standard SIA2 attributes to query the IRSA SIA service.
query_ssa(*[, pos, radius, band, time, ...])	Use standard SSA attributes to query the IRSA SSA service.
query_tap(query, *[, async_job, maxrec])	Send query to IRSA TAP.

Attributes Documentation

sia

ssa

tap

Methods Documentation

list_catalogs(*, full=False, filter=None, cache=False)

Return information of available IRSA catalogs.

Parameters:

fullbool

If True returns the full schema as a Table. If False returns a dictionary of the table names and their description.

filterstr or None

If specified we only return catalogs when their catalog_name contains the filter string.

list_collections(*, servicetype=None, filter=None)

Return information of available IRSA SIAv2 collections to be used in query_sia queries.

Parameters:

servicetypestr or None

Service type to list collections for. Returns all collections when not provided. Currently supported service types are: ‘SIA’, ‘SSA’.

filterstr or None

If specified we only return collections then their collection_name contains the filter string.

Returns:

collectionsA Table object.

A table listing all the possible collections for IRSA SIA queries.

list_columns(catalog, *, full=False)

Return list of columns of a given IRSA catalog.

Parameters:

catalogstr

The name of the catalog.

fullbool

If True returns the full schema as a Table. If False returns a dictionary of the column names and their description.

print_catalogs()

Deprecated since version 0.4.10: The print_catalogs function is deprecated and may be removed in a future version. Use list_catalogs instead.

query_region(coordinates=None, *, catalog=None, spatial='Cone', radius=<Quantity 10. arcsec>, width=None, polygon=None, get_query_payload=False, columns='*', async_job=False, verbose=False, cache=True)

Queries the IRSA TAP server around a coordinate and returns a Table object.

Parameters:

coordinatesstr, astropy.coordinates object

Gives the position of the center of the cone or box if performing a cone or box search. Required if spatial is 'Cone' or 'Box'. Ignored if spatial is 'Polygon' or 'All-Sky'.

catalogstr

The catalog to be used. To list the available catalogs, use list_catalogs().

spatialstr

Type of spatial query: 'Cone', 'Box', 'Polygon', and 'All-Sky'. Defaults to 'Cone'.

radiusstr or Quantity object, [optional for spatial is 'Cone']

The string must be parsable by Angle. The appropriate Quantity object from astropy.units may also be used. Defaults to 10 arcsec.

widthstr, Quantity object [Required for spatial is 'Box'.]

The string must be parsable by Angle. The appropriate Quantity object from astropy.units may also be used.

polygonlist, [Required for spatial is 'Polygon']

A list of (ra, dec) pairs (as tuples), in decimal degrees, outlining the polygon to search in. It can also be a list of astropy.coordinates object or strings that can be parsed by astropy.coordinates.ICRS.

get_query_payloadbool, optional

If True then returns the dictionary sent as the HTTP request. Defaults to False.

columnsstr, optional

Target column list with value separated by a comma(,)

async_jobbool, optional

if True query is run in asynchronous mode

Returns:

tableA Table object.

query_sia(*, pos=None, band=None, time=None, pol=None, field_of_view=None, spatial_resolution=None, spectral_resolving_power=None, exptime=None, timeres=None, publisher_did=None, facility=None, collection=None, instrument=None, data_type=None, calib_level=None, target_name=None, res_format=None, maxrec=None, **kwargs)

Use standard SIA2 attributes to query the IRSA SIA service.

Parameters:

possingle or list of tuples

angle units (default: deg) the positional region(s) to be searched for data. Each region can be expressed as a tuple representing a CIRCLE, RANGE or POLYGON as follows: (ra, dec, radius) - for CIRCLE. (angle units - defaults to) (long1, long2, lat1, lat2) - for RANGE (angle units required) (ra, dec, ra, dec, ra, dec … ) ra/dec points for POLYGON all in angle units

bandscalar, tuple(interval) or list of tuples

(spectral units (default: meter) the energy interval(s) to be searched for data.

timesingle or list of Time or compatible strings

the time interval(s) to be searched for data.

polsingle or list of str from pyvo.dam.obscore.POLARIZATION_STATES

the polarization state(s) to be searched for data.

field_of_viewsingle or list of tuples

angle units (default arcsec) the range(s) of field of view (size) to be searched for data

spatial_resolutionsingle or list of tuples

angle units required the range(s) of spatial resolution to be searched for data

spectral_resolving_powersingle or list of tuples

the range(s) of spectral resolving power to be searched for data

exptimesingle or list of tuples

time units (default: second) the range(s) of exposure times to be searched for data

timeressingle of list of tuples

time units (default: second) the range(s) of temporal resolution to be searched for data

publisher_didsingle or list of str

specifies the unique identifier of dataset(s). It is global because it must include information regarding the publisher (obs_publisher_did in ObsCore)

collectionsingle or list of str

name of the collection that the data belongs to

facilitysingle or list of str

specifies the name of the facility (usually telescope) where the data was acquired.

instrumentsingle or list of str

specifies the name of the instrument with which the data was acquired.

data_type‘image’|’cube’

specifies the type of the data

calib_levelsingle or list from enum

pyvo.dam.obscore.CALIBRATION_LEVELS specifies the calibration level of the data. Can be a single value or a list of values

target_namesingle or list of str

specifies the name of the target (e.g. the intention of the original science program or observation)

res_formatsingle or list of strings

specifies response format(s).

max_recordsint

allows the client to limit the number or records in the response

**kwargscustom query parameters

single or a list of values (or tuples for intervals) custom query parameters that a specific service accepts. The values of the parameters need to follow the SIA2 format and represent the appropriate quantities (where applicable).

Returns:

Results in Table format.

query_ssa(*, pos=None, radius=None, band=None, time=None, collection=None)

Use standard SSA attributes to query the IRSA SSA service.

Parameters:

posSkyCoord class or sequence of two floats

the position of the center of the circular search region. assuming icrs decimal degrees if unit is not specified.

raidusQuantity class or scalar float

the radius of the circular region around pos in which to search. assuming icrs decimal degrees if unit is not specified.

bandQuantity class or sequence of two floats

the bandwidth range the observations belong to. assuming meters if unit is not specified.

timeTime class or sequence of two strings

the datetime range the observations were made in. assuming iso 8601 if format is not specified.

collectionstr

Name of the collection that the data belongs to.

Returns:

Results in Table format.

query_tap(query, *, async_job=False, maxrec=None)

Send query to IRSA TAP. Results in TAPResults format. result.to_qtable in QTable format

Parameters:

querystr

ADQL query to be executed

async_jobbool, optional

if True query is run in asynchronous mode

maxrecint, optional

maximum number of records to return

Returns:

resultTAPResults

TAP query result.

result.to_tableTable

TAP query result as Table

result.to_qtableQTable

TAP query result as QTable