Utilities¶
- tom_targets.utils.export_targets(qs)¶
Exports all the specified targets into a csv file in folder csvTargetFiles NOTE: This saves locally. To avoid this, create file buffer.
- Parameters
qs (QuerySet) – List of targets to export
- Returns
String buffer of exported targets
- Return type
StringIO
- tom_targets.utils.import_targets(target_stream)¶
Imports a set of targets into the TOM and saves them to the database.
- Parameters
target_stream (StringIO) – String buffer of targets
- Returns
dictionary of successfully imported targets, as well errors
- Return type
dict
- tom_targets.utils.cone_search_filter(queryset, ra, dec, radius)¶
Executes cone search by annotating each target with separation distance from the specified RA/Dec. Formula is from Wikipedia: https://en.wikipedia.org/wiki/Angular_distance The result is converted to radians.
Cone search is preceded by a square search to reduce the search radius before annotating the queryset, in order to make the query faster.
- Parameters
queryset (Target) – Queryset of Target objects
ra (float) – Right ascension of center of cone.
dec (float) – Declination of center of cone.
radius (float) – Radius of cone search in degrees.
