search¶
-
pyvo.dal.ssa.
search
(url, pos, size, format='all', **keywords)[source]¶ submit a simple SSA query that requests spectra overlapping a
Parameters: url : str
the base URL for the SSA service
pos : 2-element sequence of floats
a 2-element seqence giving the ICRS RA and DEC in decimal degrees
size : float
a floating point number giving the diameter of the circular region in decimal degrees around pos in which to search for spectra.
format : str
the spectral format(s) of interest. “all” (default) indicates all available formats; “graphic” indicates graphical images (e.g. jpeg, png, gif; not FITS); “metadata” indicates that no images should be returned–only an empty table with complete metadata.
**keywords:
additional parameters can be given via arbitrary keyword arguments. These can be either standard parameters (with names drown from the
SSAQuery.std_parameters
list) or paramters custom to the service. Where there is overlap with the parameters set by the other arguments to this function, these keywords will override.Returns: SSAResults
a container holding a table of matching spectrum records
Raises: DALServiceError
for errors connecting to or communicating with the service
DALQueryError
if the service responds with an error, including a query syntax error.