nenupy.observation.tapdatabase.ObsDatabase

class nenupy.observation.tapdatabase.ObsDatabase[source]

Bases: object

Class to access NenuFAR BST TAP service.

__init__()[source]

Methods

`__init__`()
`reset`()	Reset query parameters to default values.
`search`()	Run the TAP `query` on the NenuFAR BST service.

Attributes

`conditions`	Conditions summary of the query.
`fov_center`	Center of the field of view queried, in comination with the radius `fov_radius`.
`fov_radius`	Radius of the query, in combination with the query center `fov_center`.
`freq_range`	Frequency range selection for the ADQL query using `search()`.
`meta_names`	Column names (observation properties) to return using `search()`.
`query`	Full query, combining returned parameteres `meta_names` and the conditions `conditions`.
`time_range`	Time range selection for the ADQL query using `search()`.

property conditions

Conditions summary of the query.

Getter:: Query conditions.
Type:: str

property fov_center

Center of the field of view queried, in comination with the radius fov_radius.

Setter:: Center of the field of view.
Getter:: Center of the field of view.
Type:: SkyCoord

Warning

Must be set after fov_radius.

property fov_radius

Radius of the query, in combination with the query center fov_center.

Setter:: Radius (in degrees if no unit is provided). Default is 180 deg.
Getter:: Radius in degrees.
Type:: float or Quantity

Warning

Must be set before fov_center.

property freq_range

Frequency range selection for the ADQL query using search(). Default is [None, None] which means that no condition based on observation frequencies will be applied.

Setter:: Length-2 list of [fmin, fmax]. fmin and fmax may be passed as Quantity instances or as float (assumed to be expressed in MHz).
Getter:: [fmin, fmax] list.
Type:: list

property meta_names

Column names (observation properties) to return using search().

Setter:: list of column names.
Getter:: Properties to query.
Type:: str
Seealso:: Database description

property query

Full query, combining returned parameteres meta_names and the conditions conditions.

Getter:: Query.
Type:: str

reset()[source]: Reset query parameters to default values.

search()[source]

Run the TAP query on the NenuFAR BST service.

Returns:: NenuFAR observation properties resulting from the ADQL query.
Return type:: Table

property time_range

Time range selection for the ADQL query using search(). Default is [None, None] which means that no condition based on observation time will be applied.

Setter:: Length-2 list of [start, stop]. start and stop may be passed as Time instances or as ISO/ISOT str.
Getter:: [start, stop] list.
Type:: list