ztf.non_detectioivo://x-unregistred/ztf/ztf_lowercase/non_detectionALeRCE (Automatic Learning for the Rapid Classification of Events)ALeRCE Teamhttps://tap.alerce.online/favicon.png2026-06-10T02:31:00ZALeRCE Team

Beauchef 851, Edificio Norte, piso 6. Santiago, Chile.

alerce.broker@gmail.comastronomy, objectsZTFtransientstime-series Upper limit measurements at object positions where no source was detected in ZTF images. Useful for constraining rise times and pre-discovery activity of transients.http://tap.alerce.online/tableinfo/ztf.non_detectionztf 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.ztf.non_detection Upper limit measurements at object positions where no source was detected in ZTF images. Useful for constraining rise times and pre-discovery activity of transients.oidObject identifiermeta.id;srccharindexedprimaryfidFilter identifier (1=g, 2=r, 3=i)meta.id;instr.filterintindexedprimarymjdModified Julian Date of the non-detectiondtime.epochdoubleindexedprimarydiffmaglim5-sigma limiting magnitude in difference imagemagphot.mag;stat.maxfloatnullable