Table information for 'ztf.probability'

General

Table Description:

Classification probabilities assigned to ZTF objects by various ALeRCE classifiers. Each row gives the probability of an object belonging to a given class according to a specific classifier and version.

This table is available for ADQL queries and through the TAP endpoint.

Resource Description:

Legacy ZTF astronomical catalog containing objects, detections, photometric measurements, classifications, and cross-matches from the Zwicky Transient Facility (ZTF) survey, as processed by the ALeRCE broker pipeline.

For a list of all services and tables belonging to this table's resource, see Information on resource 'ALeRCE ZTF Legacy Catalog'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:ztf_probability,
  year=2026,
  title={{ZTF} Classification Probabilities},
  author={{ALeRCE} Team},
  url={http://tap.alerce.online/tableinfo/ztf.probability},
  howpublished={{VO} resource provided by the {ALeRCE} {TAP} service}
}

Columns

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
class_name Class_name Classification class name (e.g., SN Ia, AGN, RRL) N/A src.class
classifier_name Classifier_name Name of the classifier that produced this probability N/A meta.id;instr
classifier_version Classifier_version Version string of the classifier N/A meta.version
oid Oid Object identifier N/A meta.id;src
probability Probability Probability of the object belonging to this class [0,1] N/A stat.probability
ranking Ranking Rank of this class for the object (1 = highest probability class) N/A meta.number

Columns that are parts of indices are marked like this.

VOResource

VO nerds may sometimes need VOResource XML for this table.