ztf.ps1_ztfivo://x-unregistred/ztf/ztf_lowercase/ps1_ztfALeRCE (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 Pan-STARRS1 catalog cross-match properties for ZTF detections including griz photometry and star-galaxy scores for the three nearest PS1 sources.http://tap.alerce.online/tableinfo/ztf.ps1_ztfztf 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.ps1_ztf Pan-STARRS1 catalog cross-match properties for ZTF detections including griz photometry and star-galaxy scores for the three nearest PS1 sources.oidZTF object identifiermeta.id;srccharindexedprimarycandidCandidate identifiermeta.idlongindexedprimaryobjectidps1PS1 object ID of closest sourcemeta.iddoublenullableobjectidps2PS1 object ID of second closest sourcemeta.iddoublenullableobjectidps3PS1 object ID of third closest sourcemeta.iddoublenullablesgmag1PS1 g-band magnitude of closest sourcemagphot.mag;em.opt.gfloatnullablesrmag1PS1 r-band magnitude of closest sourcemagphot.mag;em.opt.rfloatnullablesimag1PS1 i-band magnitude of closest sourcemagphot.mag;em.opt.ifloatnullableszmag1PS1 z-band magnitude of closest sourcemagphot.mag;em.opt.zfloatnullablesgmag2PS1 g-band magnitude of second closest sourcemagphot.mag;em.opt.gfloatnullablesrmag2PS1 r-band magnitude of second closest sourcemagphot.mag;em.opt.rfloatnullablesimag2PS1 i-band magnitude of second closest sourcemagphot.mag;em.opt.ifloatnullableszmag2PS1 z-band magnitude of second closest sourcemagphot.mag;em.opt.zfloatnullablesgmag3PS1 g-band magnitude of third closest sourcemagphot.mag;em.opt.gfloatnullablesrmag3PS1 r-band magnitude of third closest sourcemagphot.mag;em.opt.rfloatnullablesimag3PS1 i-band magnitude of third closest sourcemagphot.mag;em.opt.ifloatnullableszmag3PS1 z-band magnitude of third closest sourcemagphot.mag;em.opt.zfloatnullablesgscore1Star-galaxy score of closest PS1 source (0=galaxy, 1=star)src.class.starGalaxyfloatnullablesgscore2Star-galaxy score of second closest PS1 sourcesrc.class.starGalaxyfloatnullablesgscore3Star-galaxy score of third closest PS1 sourcesrc.class.starGalaxyfloatnullabledistpsnr1Angular distance to closest PS1 sourcearcsecpos.angDistancefloatnullabledistpsnr2Angular distance to second closest PS1 sourcearcsecpos.angDistancefloatnullabledistpsnr3Angular distance to third closest PS1 sourcearcsecpos.angDistancefloatnullablenmtchpsNumber of PS1 sources within 30 arcsec of the candidatemeta.numberintunique1Uniqueness flag for closest PS1 matchmeta.code.qualbooleanunique2Uniqueness flag for second closest PS1 matchmeta.code.qualbooleanunique3Uniqueness flag for third closest PS1 matchmeta.code.qualboolean