II/381ivo://CDS.VizieR/II/381CDSMiller A.A.Hall X.J.Tachibana Y.2025-08-18T07:34:23Z2024-11-28T15:01:25ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysgalaxy-classification-systemsvisible-astronomyWe present an update to the PanSTARRS-1 Point Source Catalog (PS1 PSC), which provides morphological classifications of PS1 sources. The original PS1 PSC adopted stringent detection criteria that excluded hundreds of millions of PS1 sources from the PSC. Here, we adapt the supervised machine learning methods used to create the PS1 PSC and apply them to different photometric measurements that are more widely available, allowing us to add ~144 million new classifications while expanding the the total number of sources in PS1 PSC by ~10%. We find that the new methodology, which utilizes PS1 forced photometry, performs ~6%-8% worse than the original method. This slight degradation in performance is offset by the overall increase in the size of the catalog. The PS1 PSC is used by time-domain surveys to filter transient alert streams by removing candidates coincident with point sources that are likely to be Galactic in origin. The addition of ~144 million new classifications to the PS1 PSC will improve the efficiency with which transients are discovered.2021PASP..133e4502Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/II/381CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/381https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/381http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/381https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/381https://vizier.iucaa.in/viz-bin/votable?-source=II/381http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/381GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/381/hlsp_ps1_mh (Update to the Probabilistic Classifications of Unresolved Point Sources in PanSTARRS1 from Miller & Hall, 2021PASP..133e4502M (144870754 sources))https://vizier.cds.unistra.fr/viz-bin/conesearch/II/381/hlsp_ps1_mh?https://vizier.iucaa.in/viz-bin/conesearch/II/381/hlsp_ps1_mh?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/381/hlsp_ps1_mh?GETtext/xml+votable180.050000true45.059023360.125503640.005555555555555556Cone search capability for table II/381/hlsp_ps1_tm (Probabilistic Classifications of Unresolved Point Sources in PanSTARRS1 from Tachibana & Miller, 2018PASP..130l8001T (1467097937 sources))https://vizier.cds.unistra.fr/viz-bin/conesearch/II/381/hlsp_ps1_tm?https://vizier.iucaa.in/viz-bin/conesearch/II/381/hlsp_ps1_tm?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/381/hlsp_ps1_tm?GETtext/xml+votable180.050000true43.998796260.000363870.0055555555555555560/0-3 1/17-19 21-23 25-27 29-31 2/65-67 81-83 97-99 113-115 141-143 157-159 173-175 189-191 3/259 323 387 451 543 559 563 607 623 627 671 687 691 735 751 755 4/1029-1031 1033-1035 1285-1287 1289-1291 1543 1545 1547 1799 1801-1803 2165-2167 2169-2171 2229-2231 2233-2235 2245-2247 2249-2251 2422-2423 2425-2427 2485-2487 2489-2491 2501-2503 2506-2507 2678-2679 2681-2683 2741-2743 2745-2747 2757-2759 2761-2763 2933-2935 2937-2939 2997-2999 3001-3003 3013-3015 3017-3019 5/4111 4115 4131 5135 5139 5155 6159 6165-6167 6169-6171 6185-6187 7183 7187 7189-7191 7193-7195 7203 8575 8639 8655 8659 8675 8831 8895 8911 8915 8931 8975 8979 8995 9663 9679 9685-9687 9699 9855 9919 9935 9939 9955 9999 10003 10019 10021-10023 10687 10703 10707 10709-10711 10723 10879 10959 10963 10979 11023 11027 11043 11647 11711 11727 11731 11747 11903 11967 11983 11987 12003 12047 12051 12067 6/16439 16443 16455 16459 16519 16523 20535 20539 20551 20555 20615 20619 24631 24635 24647 24653-24655 24657-24659 24674-24675 24717-24719 24737-24739 28731 28743 28747 28753-28755 28769-28771 28807 28811 34295 34299 34551 34555 34615 34619 34631 34635 34695 34699 35319 35323 35575 35579 35639 35643 35655 35659 35719 35723 35895 35899 35911 35915 35975 35979 38397 38399 38647 38651 38711 38715 38731 38733-38735 38737-38739 38795 39415 39671 39675 39735 39739 39819 39991 39995 40007 40011 40075 40081-40083 42487 42491 42493-42495 42743 42807 42811 42823 42827 42833-42835 42887 42891 43511 43515 43773-43775 43831 43835 43847 43851 43911 43915 44087 44091 44103 44107 44167 44171 46583 46587 46839 46843 46903 46907 46919 46923 46983 46987 47607 47611 47863 47867 47927 47931 47943 47947 48007 48011 48183 48187 48199 48203 48263 48267https://cdsarc.cds.unistra.fr/viz-bin/moc/II/381?format=asciiOpticaldefaultII/381/hlsp_ps1_mhUpdate to the Probabilistic Classifications of Unresolved Point Sources in PanSTARRS1 from Miller & Hall, 2021PASP..133e4502M (144870754 sources)objidPS1 ObjIDmeta.id;meta.mainindexedRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainpsScore[0/1] Point-source score (G1)src.class.starGalaxyfloatII/381/hlsp_ps1_tmProbabilistic Classifications of Unresolved Point Sources in PanSTARRS1 from Tachibana & Miller, 2018PASP..130l8001T (1467097937 sources)objidPS1 ObjIDmeta.id;meta.mainindexedRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainpsScore[0/1] Point-source score (G1)src.class.starGalaxydouble