J/ApJS/254/6ivo://CDS.VizieR/J/ApJS/254/6doi:10.26093/cds/vizier/bb-7y-6CDSFu Y.Wu X.-B.Yang Q.Brown A.G.A.Feng X.Ma Q.Li S.2026-08-03T07:24:51Z2021-08-02T12:49:16ZCDS support team

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

cds-question@unistra.frquasarsgalaxy-planesmilky-way-galaxyinfrared-photometryvisible-astronomybroad-band-photometryredshiftedastronomical-object-identificationproper-motionssurveysQuasars behind the Galactic plane (GPQs) are important astrometric references and useful probes of Milky Way gas. However, the search for GPQs is difficult due to large extinctions and high source densities in the Galactic plane. Existing selection methods for quasars developed using high Galactic latitude (high-b) data cannot be applied to the Galactic plane directly because the photometric data obtained from high-b regions and the Galactic plane follow different probability distributions. To alleviate this data set shift problem for quasar candidate selection, we adopt a transfer-learning framework at both the data and algorithm levels. At the data level, to make a training set in which a data set shift is modeled, we synthesize quasars and galaxies behind the Galactic plane based on SDSS sources and the Galactic dust map. At the algorithm level, to reduce the effect of class imbalance, we transform the three-class classification problem for stars, galaxies, and quasars into two binary classification tasks. We apply the XGBoost algorithm to Pan-STARRS1 (PS1) and AllWISE photometry for classification and an additional cut on Gaia proper motion to remove stellar contaminants. We obtain a reliable GPQ candidate catalog with 160946 sources located at |b|<=20{deg} in the PS1-AllWISE footprint. Photometric redshifts of GPQ candidates achieved with the XGBoost regression algorithm show that our selection method can identify quasars in a wide redshift range (0<z<~5). This study extends the systematic searches for quasars to the dense stellar fields and shows the feasibility of using astronomical knowledge to improve data mining under complex conditions in the big-data era.2021ApJS..254....6Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/254/6CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/207 : Palomar-Green catalog UV-excess stellar objects (Green+ 1986)I/345 : Gaia DR2 (Gaia Collaboration, 2018)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)II/328 : AllWISE Data Release (Cutri+ 2013)VII/273 : The Half Million Quasars (HMQ) catalogue (Flesch, 2015)II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)V/153 : LAMOST DR4 catalogs (Luo+, 2018)VII/285 : Gaia DR2 quasar and galaxy classification (Bailer-Jones+, 2019)VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)VII/290 : The Million Quasars (Milliquas) catalogue, version 7.2 (Flesch, 2021)J/AJ/112/407 : The FIRST bright QSO survey (Gregg+, 1996)J/AJ/119/2540 : Asiago-ESO/RASS QSO survey. I. (Grazian+, 2000)J/ApJS/126/133 : The FIRST bright quasar survey. II. (White+, 2000)J/ApJS/135/227 : The FIRST bright quasar survey. III. (Becker+, 2001)J/MNRAS/335/673 : DA white dwarfs in 2dF QSO Redshift Survey (Vennes+, 2002)J/ApJS/155/257 : NBC Quasar Candidate Catalog (Richards+, 2004)J/AJ/131/2722 : New L and T dwarfs from the SDSS (Chiu+, 2006)J/ApJ/640/579 : Near-infrared spectra of 27 SDSS quasars (Glikman+, 2006)J/AJ/134/973 : SDSS Stripe 82 star catalogs (Ivezic+, 2007)J/MNRAS/392/19 : The 2dF-SDSS QSO survey (Croom+, 2009)J/ApJ/701/508 : 5000 AGNs behind the Magellanic clouds (Kozlowski+, 2009)J/MNRAS/406/1583 : Quasar from SDSS and UKIDSS (Wu+, 2010)J/A+A/542/A110 : Neutral gas in the Milky Way halo (Ben Bekhti+, 2012)J/AJ/144/49 : Quasars from SDSS-DR7, WISE and UKIDSS surveys (Wu+, 2012)J/AJ/145/159 : LAMOST. II. ugriz phot. of 526 new quasars (Huo+, 2013)J/ApJS/218/23 : Fermi LAT third source catalog (3FGL) (Acero+, 2015)J/other/RAA/15.1438 : LAMOST new QSOs in M31 and M33 vicinity (Huo+, 2015)J/ApJS/221/12 : AGNs in the MIR using AllWISE data (Secrest+, 2015)J/other/RAA/16.C7 : LAMOST-SDSS galaxy pairs (Shen+, 2016)J/AJ/154/269 : A new photo-z method for quasars in Stripe 82 (Yang+, 2017)J/ApJS/234/23 : The WISE AGN candidates catalogs (Assef+, 2018)J/A+A/611/A97 : Phot. quasar candidates in Stripe 82 (Pasquet-Itam+, 2018)J/other/RAA/19.29 : Compilation of known QSOs for Gaia (Liao+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/254/6https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/254/6http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/254/6https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/254/6https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/254/6http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/254/6GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/254/6/catalog (The Quasar behind the Galactic plane (GPQ) candidate catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/254/6/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/254/6/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/254/6/catalog?GETtext/xml+votable180.050000true0.3948310646.404927710.0055555555555555563/17-19 21 23 25-26 29 31 39 43-44 48 98 104 106-107 200-201 204-205 215-217 220 226 232-233 236-237 247 249 252 324 326-327 333 337 339-340 342 345-346 348 350-351 368 370 373 375-376 378-379 381 453 458-459 464 467 470-471 496 502-503 627 632-633 635 4/63-64 66-67 80 82 88 90 97-99 108 110 113 123 149-151 155 167 171 180-182 184-186 200-202 208-209 211-214 216-217 219-220 222 224 226 237-239 241-244 246 248-250 384 386 422 442-443 778-779 782-783 813 824-825 828-829 843 846-847 854-855 857-859 872 876-877 884-886 888 908 910-911 922-923 926-927 970-971 973-975 987 992-994 1012-1014 1287 1300 1302-1303 1329 1331 1341-1343 1345 1347 1353 1374 1376 1378 1389 1396 1398 1429 1431 1437 1439 1476 1478 1484 1486 1488-1489 1491 1497 1508-1510 1521 1523 1532-1533 1535 1809 1850 1854 1862-1863 1865 1874 1905 1908-1909 1936-1937 1940-1941 1943 1990-1991 1993 1996-1997 2002-2003 2036-2037 2491-2492 2503 2507 2536-2537 2539 2544 2546 2552 2554 2683 2685 2687 3003 3006-3007 5/215 221 223 245-247 260-262 325-326 333 335 356-357 359 367 385-387 436-438 448 460-461 463 482 485-488 491 593 595 613-615 619 663 667 679 683 732-734 748-750 752-754 756-758 760 784 786 792 812-813 823 827 829 831 840-841 843 860-862 873-875 884 886 892 900 903 915 917 924 926-927 942-943 945-947 960-961 963 1004-1006 1008 1010 1186 1192 1194 1548 1550 1594 1680 1682 1694 1760 1762-1763 1766 1784 1786-1787 1790 3106-3107 3110 3178-3179 3182-3183 3194-3195 3198-3199 3236-3237 3239 3248-3250 3309 3320-3322 3324-3325 3370-3371 3382-3383 3407 3414-3415 3425-3427 3492-3493 3496 3499 3512 3516 3548 3550 3556-3558 3560-3561 3568 3594-3595 3598 3637-3639 3681-3683 3686 3698 3703 3749 3874-3875 3878-3879 3889 3891 3931 3933-3936 3938-3940 3942-3944 3946-3947 3980-3981 4060-4062 5141-5143 5172-5173 5175 5181 5204-5205 5312-5313 5315 5321 5323 5348-5349 5357 5360 5362-5363 5377 5385 5387 5408-5410 5418-5419 5421-5423 5466 5488 5490 5508-5509 5511 5519 5553 5555 5561 5565 5567 5588 5590 5596 5598-5599 5712 5714-5715 5720-5721 5723 5745 5747 5844-5845 5847 5853 5855 5877 5879 5908-5909 5916-5917 5919 5940 5942 5948 5950-5951 5960-5961 5963 5984-5985 5987 5996-5997 5999 6044-6046 6081-6083 6088 6090 6112 6114-6117 6119-6122 6124-6126 6136-6137 6139 7233 7245 7247 7284-7285 7306-7307 7310 7392 7394 7398-7399 7405-7407 7410 7422-7423 7440 7442-7443 7446 7456-7457 7459 7468-7469 7471 7502-7503 7514 7572-7573 7575 7593-7595 7598-7599 7611 7614 7616-7617 7629 7640-7641 7644-7646 7668 7684-7685 7696-7697 7700-7701 7703 7756-7757 7768-7769 7771 7797 7953-7956 7958-7959 7968-7969 7992-7993 7996-7997 7999-8002 8006-8007 8024 8026-8028 8030 8129 8132-8133 8156-8157 9706 9941 9943 9945 9947-9949 9951 9957 9959 9961-9963 9973 9976 9978-9979 9981 10005-10007 10009 10011 10021-10023 10025-10027 10048 10050 10056 10058 10080 10082 10088 10090 10152 10154-10155 10214 10220 10222 10713 10715 10718-10719 10725-10727 10729-10731 10736-10738 10744 10746-10747 12005-12007 12009-12011 12018-12019 12202-12203 12206 6/341 343 349 351 373 375 381 383 469 471 477 479 501 503 509 511 853 855 891 977 979 999 1005-1007 1053 1055 1296-1298 1309-1311 1328 1331 1336-1337 1339 1433-1435 1456-1458 1461-1465 1467 1536-1538 1756 1776-1777 1779 1781 1784 1786 1788-1789 1796-1797 1800-1802 1804-1805 1824 1826-1827 1829-1832 1834 1837-1838 1848-1849 1851 1925 1927 1932-1934 1936-1937 1939 1956-1958 1960-1962 2359 2365-2367 2371 2377-2379 2447 2449 2451 2469-2471 2473 2475 2645 2647 2651 2663 2667 2711 2715 2725-2727 2729-2731 2940 2942-2943 3004 3020 3022-3023 3036 3044-3046 3049-3051 3056 3061-3062 3065 3140 3142 3148-3150 3152 3154 3165 3167 3174 3176 3178-3181 3188 3191 3197 3256-3258 3260-3261 3267-3268 3275 3277 3287 3296 3298 3300-3301 3305 3313-3315 3321-3323 3369-3371 3452 3454 3488 3490-3491 3540 3542 3548 3576-3578 3608-3610 3634-3635 3644 3646 3652-3653 3656-3658 3664-3665 3667 3672 3674 3676 3679-3680 3682-3683 3687 3690-3691 3693-3694 3701-3703 3712-3713 3719-3720 3729 3737 3739 3742 3745 3755 3757 3759 3762 3765-3767 3776 3779 3850-3851 3920 3922 3928 3930 4028-4030 4036 4038 4044 4064-4066 4072 4736 4738 4772 4774 4780 4782-4783 6162 6168 6170 6204 6206 6346 6368 6370-6371 6724 6726 6732 6734-6735 6770-6771 6780 6782-6783 6954 7046-7047 7070-7071 7142-7143 7164 7166-7167 7850 12418-12419 12422 12444 12446-12447 12490-12491 12494 12704 12706-12707 12710-12711 12722-12723 12726-12727 12770-12771 12774-12775 12786-12787 12790-12791 12928-12930 12932-12933 12935 12940-12941 12943 12953-12955 12966-12967 12977 12981 12983 13004-13006 13024 13028 13042 13044-13045 13047 13216-13218 13221 13225 13228-13229 13232-13234 13240 13244-13245 13247 13292-13294 13305 13307-13308 13310 13474-13475 13477-13479 13514-13515 13517-13519 13526-13527 13615 13622-13623 13625-13627 13646-13647 13651 13653-13655 13697-13699 13976 13978-13980 13982-13983 13988-13990 13992 14000-14001 14003-14004 14006-14007 14009-14010 14013 14015 14052-14053 14055 14057 14061-14062 14068-14069 14072 14196-14198 14204 14206-14207 14236-14237 14239 14251 14253-14254 14256-14257 14260-14261 14267 14276 14278-14281 14283 14292-14293 14297 14301 14313 14320 14325 14369 14374-14375 14386 14390 14396 14398-14399 14402 14442-14445 14458 14544 14546 14601 14721-14722 14737 14740 14749-14751 14790-14791 14797-14802 14804 14806-14810 14981 14992-14993 15040-15041 15044-15045 15056-15057 15060-15061 15232-15233 15366 15402 15425 15441 15467 15469-15470 15477 15480 15485-15487 15489-15490 15493-15495 15507 15509-15510 15552 15554-15555 15560 15562-15563 15646 15648 15650 15658-15662 15664 15666 15671-15672 15674-15675 15678-15679 15695 15711-15712 15717 15719-15720 15730-15731 15749-15751 15765-15767 15780 15782-15783 15928-15929 15932-15933 16252-16253 20558-20559 20562-20563 20580-20581 20583 20589 20697 20699 20733 20735 20824 20826-20827 20829-20831 21077 21256-21257 21259 21281 21283 21381 21383 21400-21401 21403-21405 21407 21425 21427 21436-21437 21439 21444-21446 21504-21505 21512 21514 21516-21518 21537-21539 21544 21546-21547 21644 21646 21664-21666 21668 21670 21680-21681 21683 21834 21856 21858 21958 21964 21966-21967 22008 22010 22041-22042 22064 22066-22067 22069-22071 22074-22075 22208 22210-22211 22240 22243 22248-22250 22253 22255-22257 22259 22264 22266-22267 22366 22388 22390-22391 22804-22805 22807 22813 22815 22852-22854 22888-22889 22891 22977 23012-23013 23015 23021 23023 23384-23385 23387 23409 23411 23417 23419 23541 23543 23549 23551 23640-23642 23644 23646-23647 23673-23675 23765-23767 23772 23774-23775 23798-23799 23848-23849 23851 23944-23945 23947 23968 23972-23973 23975 23977 23981-23982 23992-23994 24188 24190-24191 24320 24322 24356-24357 24359 24364 24366 24452 24454-24455 24472-24473 24475 24492 24494-24495 24508-24510 24552-24553 24555 28755-28757 28759 28762 28764-28765 28788 28892 28928-28929 28931 28936-28937 28939-28941 28943 28972-28973 28976-28977 28979 28984-28985 28987 29076-29077 29085 29121 29125 29127-29129 29133 29144-29145 29148-29149 29151 29174 29193 29217-29220 29222-29223 29236 29246-29247 29280 29282-29283 29288-29290 29295 29298 29305-29306 29310-29311 29474 29477-29478 29481-29483 29486-29488 29491 29495 29572 29574-29575 29580-29582 29584 29586 29589 29591 29616-29617 29619 29636 29639 29644-29646 29650-29651 29656 29680 29682-29683 29686-29687 29766-29767 29778 29788 29790-29791 29833-29835 29857-29859 29861 29869 29962-29963 30000 30002-30003 30006 30062-30063 30074 30229 30275 30277-30279 30284-30285 30296 30309 30325 30350 30362 30370-30371 30386-30388 30391 30414 30434 30439 30441-30443 30461-30463 30472-30473 30475-30477 30479 30503 30512-30514 30521 30525 30568 30572-30574 30588-30589 30591 30634-30635 30638 30656 30659 30661 30676-30677 30679 30685 30720-30721 30724-30725 30727 30793 30796-30797 30808-30809 30811 31009 31012-31013 31015 31036-31037 31080-31081 31083 31184-31185 31808 31810-31811 31829-31831 31881 31884-31885 31887 31924-31925 31980-31981 31992-31993 31995 32012 32014-32015 32020 32023 32072-32073 32075-32076 32078 32091 32100 32102-32103 32125-32127 32341 32512-32513 32536-32537 32540-32541 32543 32609 32612-32613 32615 32636-32637 38653-38655 38798 38817-38822 38828 38830 39423 39677-39679 39759 39770 39784-39786 39801-39803 39822-39823 39827 39833-39835 39841 39843 39889-39890 39896 39898-39902 39909-39911 39922 39928 39930-39934 39997-39999 40013-40015 40017-40019 40033-40035 40041-40043 40079 40082-40083 40196 40198 40204 40206 40228 40230 40236 40238 40324 40326 40332 40334 40356 40358 40364 40366-40367 40612 40614-40615 40754 40760 40762 40848 40850-40851 40886 40892 40894 42749 42751 42814-42815 42831 42839 42842-42843 42846 42851 42857-42859 42864 42866-42868 42870-42871 42894-42895 42897 42899 42913 42915 42957-42959 42980 42982 44113 44116-44117 44288-44289 44292-44293 44304-44305 44308-44309 44352-44353 44356-44357 44368-44369 44372-44373 48013-48015 48017 48019 48033-48035 48066-48067 48088 48090-48091 48094 48800 48802-48803 48806-48807 48830-488318.157980699529898e-21 4.670716440110116e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/254/6?format=asciiOpticalInfrareddefaultJ/ApJS/254/6/catalogThe Quasar behind the Galactic plane (GPQ) candidate catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitude (l)degpos.galactic.lonindexede_Jmag[0.02/0.4]? Uncertainty in Jmagmagstat.error;phot.magfloatnullableHmag[11.8/17.9]? 2MASS H band (1.65um) magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag[0.019/0.4]? Uncertainty in Hmagmagstat.error;phot.magfloatnullableKsmag[10.8/17.4]? 2MASS Ks band (2.17um) magnitude (Kmag)magphot.mag;em.IR.Kfloatnullablee_Ksmag[0.017/0.5]? Uncertainty in Ksmag (e_Kmag)magstat.error;phot.magfloatnullableGaia? Gaia DR2 identifier (Gaia_source_id)meta.id.crossnullableplx[-14.3/11]? Gaia DR2 parallax (parallax)maspos.parallax.trigfloatnullableNameMain identifier for an object in SIMBAD (sb_main_id)meta.idchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedGLAT[-20.1/20.1] Galactic latitude (b)degpos.galactic.latindexedzphot[0.016/4.8] Photometric redshift predicted with XGBoost regressor (photoz)src.redshiftfloatPstar[1.2e-5/0.01] Probability of the object being a star (p_star) (1)stat.fit.goodnessdoublePext[0.99/1] Probability of the object being an extragalactic object (p_ext) (1)stat.fit.goodnessfloatPgal[2.6e-5/0.05] Probability of the object being a galaxy (p2_gal) (2)stat.fit.goodnessdoublePqso[0.95/1] Probability of the object being a quasar (p2_qso) (2)stat.fit.goodnessfloatfpm0[0.0001/20.8]? Probability density of zero proper motion (f_PM0_) of the sourcestat.fit.goodnessdoublenullablelogfpm0[-4/1.4]? Log of fpm0 (log_fpm0)stat.fit.goodnessdoublenullableE(B-V)[0.018/8.95] Line-of-sight E(B-V) given by the Planck14 dust map (ebv)magphot.color.excessfloatobjIDPS1 unique object identifier (PS_objID)meta.idgmag[14.2/23.8] PS1 mean PSF g-band AB magnitudemagphot.mag;em.opt.Bfloate_gmag[0/0.5]? Uncertainty in gmagmagstat.error;phot.magfloatnullablegKmag[13.4/24]? PS1 mean Kron g-band AB magnitudemagphot.mag;em.opt.Bfloatnullablee_gKmag[0/0.4]? Uncertainty in gKmagmagstat.error;phot.magfloatnullablermag[14/22.4] PS1 mean PSF r-band AB magnitudemagphot.mag;em.opt.Rfloate_rmag[0/0.5]? Uncertainty in rmagmagstat.error;phot.magfloatnullablerKmag[14/22.9]? PS1 mean Kron r-band band AB magnitudemagphot.mag;em.opt.Rfloatnullablee_rKmag[0/0.4]? Uncertainty in rKmagmagstat.error;phot.magfloatnullableimag[14.1/22.2] PS1 mean PSF i-band AB magnitudemagphot.mag;em.opt.Ifloate_imag[0/0.3]? Uncertainty in imagmagstat.error;phot.magfloatnullableiKmag[14.1/22.2] PS1 mean Kron i-band AB magnitudemagphot.mag;em.opt.Ifloate_iKmag[0/0.4] Uncertainty in iKmagmagstat.error;phot.magfloatzmag[14/21.7] PS1 mean PSF z-band AB magnitudemagphot.mag;em.opt.Ifloate_zmag[0/0.5]? Uncertainty in zmagmagstat.error;phot.magfloatnullablezKmag[14/22.1] PS1 mean Kron z-band AB magnitudemagphot.mag;em.opt.Ifloate_zKmag[0/0.4] Uncertainty in zKmagmagstat.error;phot.magfloatymag[11.5/22.2] PS1 mean PSF y band AB magnitudemagphot.mag;em.IR.Jfloate_ymag[0/0.5]? Uncertainty in ymagmagstat.error;phot.magfloatnullableyKmag[10.6/22.9]? PS1 mean Kron y-band AB magnitudemagphot.mag;em.IR.Jfloatnullablee_yKmag[0/0.4]? Uncertainty in yKmagmagstat.error;phot.magfloatnullableAllWISEAllWISE unique source ID (AllWISE_ID)meta.id.crossW1mag[8.8/18.4] WISE W1 (3.35um) band magnitudemagphot.mag;em.IR.3-4umfloate_W1mag[0.02/0.3] Uncertainty in W1magmagstat.error;phot.magfloatW2mag[7.8/17.2] WISE W2 (4.6um) band magnitudemagphot.mag;em.IR.4-8umfloate_W2mag[0.018/0.3] Uncertainty in W2magmagstat.error;phot.magfloatW3mag[4.2/13.7]? WISE W3 (11.6um) band magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_W3mag[0.01/0.6]? Uncertainty in W3magmagstat.error;phot.magfloatnullableW4mag[1.2/10.2]? WISE W4 (22.1um) band magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_W4mag[0.01/0.6]? Uncertainty in W4magmagstat.error;phot.magfloatnullableJmag[12.6/18.7]? 2MASS J band (1.25um) magnitudemagphot.mag;em.IR.Jfloatnullablee_plx[0.03/4.4]? Parallax uncertainty (parallax_error)masstat.error;pos.parallaxfloatnullablepmRA[-14.5/15]? Gaia DR2 proper motion in right ascension direction (pmRA*cosDE)mas/yrpos.pm;pos.eq.rafloatnullablee_pmRA[0.03/5.3]? PmRA standard error (pmra_error)mas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE[-12.7/13.1]? Gaia DR2 proper motion in declination direction (pmdec)mas/yrpos.pm;pos.eq.decfloatnullablee_pmDE[0.028/5.2]? PmDE standard error (pmdec_error)mas/yrstat.error;pos.pm;pos.eq.decfloatnullableCorpm[-0.94/0.92]? Correlation between pmRA and pmDE (pmra_pmdec_corr)stat.correlation;pos.pm;pos.eq.decfloatnullables_pmRA[0.075/5.7]? True external uncertainty of pmRA (pmra_error_ext)mas/yrstat.error;pos.pm;pos.eq.rafloatnullables_pmDE[0.073/5.6]? True external uncertainty of pmDE (pmdec_error_ext)mas/yrstat.error;pos.pm;pos.eq.decfloatnullableOTypeMain object type for an object in SIMBAD (sb_main_type)src.class;meta.maincharz[0.048/4.9]? Redshift of an object recorded in SIMBAD (sb_redshift)src.redshiftdoublenullableGPQCCatalog designation based on PS1 coordinates (Jhhmmss.ss+ddmmss.s) (Designation)meta.id;meta.mainchar