J/A+A/664/A109ivo://CDS.VizieR/J/A+A/664/A109doi:10.26093/cds/vizier.36640109CDSPancino E.Marrese P.M.Marinoni S.Sanna N.Turchi A.Tsantaki M.,Rainer M.Altavilla G.Monelli M.Monaco L.2026-02-05T20:00:38Z2022-08-17T12:36:19ZCDS support team

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

cds-question@unistra.froptical-observationcatalogsstandard-starsphotometryapparent-magnitudeIn the era of large surveys and space missions, it is necessary to rely on large samples of well-characterized stars for inter-calibrating and comparing measurements from different sources. Among the most employed photometric systems, the Johnson-Kron-Cousins has been used for decades and for a large amount of important datasets. Using Gaia DR3 as a reference, as well as data from reddening maps, spectroscopic surveys, and variable stars monitoring surveys, we curated and characterized the widely used Landolt and Stetson collections of more than 200000 secondary standards, removing binaries, blends, and variable stars, and we classified and parametrized them, employing classical as well as machine learning techniques. In particular, our atmospheric parameters agree significantly better with spectroscopic ones, compared to other catalogues obtained by means of machine learning. We also cross-matched the collections with the major photometric surveys to provide a comprehensive table with the magnitudes of the secondary standards in the most widely used photometric systems (ugriz, grizy, Gaia, Hipparcos, Tycho, 2MASS). We finally provide a set of 167 polynomial transformations, valid for dwarfs and giants, metal-poor and metal-rich stars, to transform UBVRI magnitudes into the above photometric systems and vice-versa.2022A&A...664A.109Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A109CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/259 : The Tycho-2 Catalogue (Hog+ 2000)I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/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=J/A+A/664/A109https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/664/A109http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/664/A109https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/664/A109https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/664/A109http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/664/A109GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/664/A109/table1 (The curated Landolt collection)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A109/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A109/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A109/table1?GETtext/xml+votable180.050000true1.8022533.35536111111110.005555555555555556Cone search capability for table J/A+A/664/A109/table2 (The curated Stetson collection)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A109/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A109/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A109/table2?GETtext/xml+votable180.050000true232.44210424423-29.291856720180.005555555555555556Cone search capability for table J/A+A/664/A109/table5 (Combined Landolt + Stetson catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A109/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A109/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A109/table5?GETtext/xml+votable180.050000true1.8022533.35536111111110.0055555555555555565/641 667 669 2584 3688 3898 5530 5721 5909 6295 7176 7188 7209 7322 7786 7845 7854 7898 8456 8560 8844 8992 9581 9774 10781 11229 11628 6/2 130 326 530 546 618-619 704-705 1014 1127 1133 1144 1401 1403 1434 1449 1481 1483 1714 1720 1737 1890 2216-2217 2223 2229 2231-2232 2234 2272 2274 2341 2352 2536 2568 2572-2573 2575 2598 2604-2605 2611 2623 2625 2628-2629 2636 2666 2674-2675 2709 2735 2746 2752 2768-2769 2774 2780 2816 2840 2849 2851-2852 2854 2890 2895 2912 2926 3014-3015 3020-3021 3042-3043 3048 3056 3242 3252 3276-3277 3692-3693 3729 3950 4075 4078 4255 4296 4298 4782-4783 5067 5118 5286-5287 5292-5293 5450 5452 5547 5550 5581 5705 5710 5731 5746 5826-5827 5832-5833 5883-5884 6021 6023 6032 6034 6148-6149 6389 6471 6477 6523 6852-6853 6993 7259 7325 7416-7418 7606 7741 7743 8068 8135 8510 8512-8513 8744-8745 8747 9004 9322 9336 9433 9436 9562 9589 9664 9666 9733 9885 9887 9924-9926 9944 10008 10010 10132 10181-10183 10188 10308 10310 10320-10321 10441 10443-10444 10446 10471 10519 10599 10845 10856 10866 10872 10874 11026-11027 11031 11176 11242 11519 11690-11691 11694 11786 11861 11984 12032-12033 12036 12404-12405 12407 12425 12427 12529 12531-12532 12534 12621 12687 12709 12941 12943 12954 13198 13309 13480 13654-13655 13660-13661 13690-13691 13795 13806-13807 13927 13990 13992 13996 14023 14148-14149 14173 14175 14295 14322 14353 14410 14432 14461 14463 14489 14492 14573 14575 14584 14586 14642 14648 14666-14667 14676 14970 14991 15034 15056 15267 15270 15759 15826-15827 15833 16479 16645 16647 16656 16658 16868 16879 16886 17094 17121 17124 17165 17167 17526 17570 17749 17751 17790 17840-17841 17877 17879 18025 18027-18030 18034-18035 18040-18041 18078 18087 18101 18132 18149 18450 18496 18498 18712 18748 18774 18779 18782 18800-18801 18854 18860-18861 18863 18906 18950 19026-19027 19032-19033 19036 19050-19051 19089-19091 19093-19095 19097 19120 19122 19136-19138 19141 19144 19239 19466 19586 19799 19832-19833 19970 19978-19979 19990 19996 19999-20001 20262 20350-20351 20388 20421 20423 20434 20436-20437 20440-20441 20562 20680 20728 21017 21020 21438-21439 21523 21716 21718-21719 21750 21753 21756 21828-21829 21831 21841 21844 21864-21866 21901 21903 21914 22097 22100-22102 22114 22869 22883 22927 22938 22949 22960 23101 23103 23139 23145 23147-23148 23186-23187 23190-23191 23240 23468 23476 23635 23718 23735 23789 23800 23860-23861 24330 24338-24339 24344-24345 24491 24841-24843 24862 25081 25083 25141 25143 25184 25540 25603 25749 25751 25792 25794 25849 25873 25915 25918 25944-25946 25988 26001 26018-26019 26024-26025 26031 26174-26175 26208 26210 26219 26260-26261 26321 26487 26493 26678 26740 26808 26810 26858 26916 26918 26961 26964-26965 26972 26980-26981 27021 27032 27034 27045 27047 27049 27056 27058 27095 27120 27187 27206-27207 27212-27213 27218 27224 27235 27237-27238 27241 27244 27321 27324 27350-27351 27356-27357 27392 27408 27419 27459 27462 27465 27574 27580 27691 27728 27731 27767 27773 27906-27907 27912-27913 27963 27973 27975 27981 27984 27986 27992 28026 28066-28067 28093 28134 28136 28361 28364 28535 28538 28559 28577 28579-28580 28741 28743 28751 28756 28758 28768-28770 28773 28778 28799 28815 28817 28827 28833 28848-28849 28855 28868 28876-28877 28882 28888-28889 28959 28966-28967 28970 28972-28974 29184 29187 29190-29193 29195-29197 29216 29218-29219 29222 29225 29228 29231 29233 29248 29267 29294-29295 29315 29318 29377 29461 29463 29506 29546 29551 29632-29633 29636-29638 29698-29699 29713 29715-29716 29718 29805 29807 29816 29818 29870 30042-30043 30121 30123-30124 30126 30195 30215 30226 30299 30321-30323 30328-30329 30357 30359 30376 30378 30400 30402 30439-30440 30445 30754 30769 30771 30833 30939 30995 30998 31014 31018-31019 31043 31064-31065 31105 31114-31115 31128-31129 31139 31225 31227 31230 31315 31321 31324 31396 31398-31399 31410-31411 31424 31468 31470 31554 31557 31559 31637 31692-31693 31722-31723 31730 31756 31790 31809 31812 32082-32083 32790 32981 32983 33073 33077 33091 33094-33098 33100 33103 33112 33120-33121 33123-33126 33136-33137 33140-33141 33154 33239 33295 33306 33317 33321 33323 33326 33328 33330 33336 33634-33635 33640-33641 33922 33928 33946-33947 33968-33969 34034-34035 34066-34067 34070 34316-34317 34378-34379 34407 34418 34424 34534-34535 34554 34692 34694-34695 34811 34926 34933 34963 34975 35065 35068 35079 35339 35355 35361 35460 35536 35538 35543 35549 35551 35714-35715 35720 35722 35882-35883 35886 35935 35957 35972 36253 36826-36827 36848-36849 36857 36971 36974 37057 37291 37294 37514-37515 37550-37551 37582 37633 37636 37706 37786 37808 37928-37929 37931 37933 37944 37970-37971 38016 38018 38024 38164-38165 38199 38205 38242 38248 38411 38449 38465 38468 38531 38536 38683 38705 38767 38843 38846 38852-38853 38864 38916 39089 39091-39092 39094-39095 39100-39102 39181 39183 39319 39356 39362 39372 39374 39477 39640 39642 39954 39956 40130 40430 40540 40623 41009-41011 41257 41260 41304-41305 41507 41513 41522 41528 41612-41613 41649 41789 41832 41852 41967 42073 42076 42103 42129 42134-42135 42152 42176-42177 42210-42211 42216-42217 42272 42274-42275 42278 42293-42294 42314 42320 42336 42361 42383 42394 42416-42417 42466 42505 42528 42530 42691 42700-42701 42761 42789 42800 42841 42955 42958 42977 42990-42991 43012-43013 43027 43030 43033 43036 43193 43225 43227 43230 43262-43263 43305 43310 43333 43604 43626-43627 43650 43656-43657 43712 43824 43827 43830 43855 43877 43894 44083-44084 44086-44087 44123 44214-44215 44220-44221 44427 44430 44449 44452 44542 45235 45267 45270 45349 45360 45821 46295 46325 46496 46568 47100 47102 47105 47125 47127 47168 47278 47304 47458 47620 47755 47777 47779 47825 47827-47828 47830 47865-47868 47870 47901 47903 47916 47935 47970-47971 47976-47977 48021 48034-48035 48041 48434 48440 48444-48445 48698 48784 48793-48795 48926 48941-48943 48952 48954 48985 49031 49037 49042 490481.1166583743361574e-19 6.298446873438916e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/664/A109?format=asciiOpticaldefaultJ/A+A/664/A109/table1The curated Landolt collectionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIdUnique numeric IDmeta.id;meta.mainintGaiaEDR3? Gaia EDR3 source IDmeta.idnullableNameAdopted star namemeta.idcharRAJ2000Right ascension (J2000) in the original cataloguedegpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) in the original cataloguedegpos.eq.dec;meta.mainindexedRAGdeg? Right ascension (ICRS) at Ep=2016.0 from Gaia EDR3degpos.eq.ranullableDEGdeg? Declination (ICRS) at Ep=2016.0 from Gaia EDR3degpos.eq.decnullableUmag? U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? U band errormagstat.error;phot.magfloatnullablenU? Number of U band measurementsmeta.numberintnullableBmag? B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? B band errormagstat.error;phot.magfloatnullablenB? Number of B band measurementsmeta.numberintnullableVmag? V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? V band errormagstat.error;phot.magfloatnullablenV? Number of V band measurementsmeta.numberintnullableRmag? R band magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? R band errormagstat.error;phot.magfloatnullablenR? Number of R band measurementsmeta.numberintnullableImag? I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? I band errormagstat.error;phot.magfloatnullablenI? Number of I band measurementsmeta.numberintnullablequal[0/5] Photometric quality flag (0=best, 5=worst)meta.code.qual;photintDup? Number of duplicatesmeta.numberintnullableNeigh? Number of neighborsmeta.numberintnullableDistG? Distance from Gaia best matcharcsecpos.distance;src.orbitaldoublenullableJ/A+A/664/A109/table2The curated Stetson collectionqual[0/5] Photometric quality flag (0 best, 5 worst)meta.code.qual;photintDupNumber of duplicatesmeta.numberintNeighNumber of neighborsmeta.numberintDistG? Distance from Gaia best matcharcsecpos.distance;src.orbitaldoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIdUnique numeric IDmeta.id;meta.mainintGaiaEDR3? Gaia EDR3 source IDmeta.idnullableNameAdopted star namemeta.idcharRAJ2000Right ascension (J2000) in the original cataloguedegpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) in the original cataloguedegpos.eq.dec;meta.mainindexedRAGdeg? Right ascension (ICRS) at Ep=2016.0 from Gaia EDR3degpos.eq.ranullableDEGdeg? Declination (ICRS) at Ep=2016.0 from Gaia EDR3degpos.eq.decnullableUmag? U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? U band errormagstat.error;phot.magfloatnullablenUNumber of U band measurementsmeta.numberintBmag? B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? B band errormagstat.error;phot.magfloatnullablenBNumber of B band measurementsmeta.numberintVmag? V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? V band errormagstat.error;phot.magfloatnullablenVNumber of V band measurementsmeta.numberintRmag? R band magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? R band errormagstat.error;phot.magfloatnullablenRNumber of R band measurementsmeta.numberintImag? I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? I band errormagstat.error;phot.magfloatnullablenINumber of I band measurementsmeta.numberintvarWSWelch_Stetson variability indexmeta.code;src.var.indexfloatJ/A+A/664/A109/table4List of found variables and binariesIdUnique numeric IDmeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaEDR3? Gaia EDR3 source IDmeta.idnullableExtIDStar ID in the external cataloguemeta.idcharsourceExternal cataloguemeta.id;meta.datasetcharStarTypeExternal classificationsrc.classcharNotesAdditional notes (1)meta.notecharJ/A+A/664/A109/table5Combined Landolt + Stetson cataloguee_Teff? Error on TeffKstat.error;phys.temperature.effectivedoublenullablelogg? Surface gravitylog(cm.s**-2)phys.gravitydoublenullable[Fe/H]? Iron metallicityphys.abund.ZdoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIdUnique numeric IDmeta.id;meta.mainintGaiaEDR3? Gaia EDR3 source IDmeta.idnullableGaiaDR2? Gaia DR2 source IDmeta.idnullableNameAdopted star namemeta.idcharCollectLandolt or Stetsonmeta.id;photcharRAJ2000Right ascension (J2000) in the original cataloguedegpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) in the original cataloguedegpos.eq.dec;meta.mainindexedRAGdeg? Right ascension (ICRS) at Ep=2016.0 from Gaia EDR3degpos.eq.ranullableDEGdeg? Declination (ICRS) at Ep=2016.0 form Gaia EDR3degpos.eq.decnullableUmag? U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? U band errormagstat.error;phot.magfloatnullablenU? Number of U band measurementsmeta.numberintnullableBmag? B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? B band errormagstat.error;phot.magfloatnullablenB? Number of B band measurementsmeta.numberintnullableVmag? V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? V band errormagstat.error;phot.magfloatnullablenV? Number of V band measurementsmeta.numberintnullableRmag? R band magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? R band errormagstat.error;phot.magfloatnullablenR? Number of R-band measurementsmeta.numberintnullableImag? I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? I band errormagstat.error;phot.magfloatnullablenI? Number of I band measurementsmeta.numberintnullableBinFlag[0/1]? Binarity flagmeta.codeintnullableVarFlag[0/1]? Variability flagmeta.code;src.varintnullableHighQual[0/1]? Quality flagmeta.code.qualintnullableDist? Distancepcpos.distancedoublenullableb_Dist? Minimum distancepcpos.distance;stat.mindoublenullableB_Dist? Maximum distancepcpos.distance;stat.maxdoublenullableE(B-V)? Reddening E(B-V)magphot.color.excessdoublenullablee_E(B-V)? Reddening errormagstat.errordoublenullableRV? Line-of-sight (radial) velocitykm/sphys.veloc;pos.heliocentricdoublenullablee_RV? Radial velocity errorkm/sstat.errordoublenullableMethRV? Source of RVmeta.notecharStarType? Stellar classificationsrc.classcharMethstar? Classification methodmeta.notecharTeff? Effective temperatureKphys.temperature.effectivedoublenullablee_logg? Error on logglog(cm.s**-2)stat.errordoublenullablee_[Fe/H]? Error on [Fe/H]stat.error;phys.abund.FedoublenullableMethp? Method for the parametersmeta.notecharJ/A+A/664/A109/table8Cross-Ids and magnitudes in other surveyse_rPmag? Error on Pan-STARRS rmagmagstat.error;phot.magdoublenullableiPmag? Pan-STARRS i magnitude (psf magnitude)magphot.mag;em.opt.Idoublenullablee_iPmag? Error on Pan-STARRS imagmagstat.error;phot.magdoublenullablezPmag? Pan-STARRS z magnitude (psf magnitude)magphot.mag;em.opt.Idoublenullablee_zPmag? Error on Pan-STARRS zmagmagstat.error;phot.magdoublenullableyPmag? Pan-STARRS y magnitude (psf magnitude)magphot.mag;em.IR.Jdoublenullablee_yPmag? Error on Pan-STARRS ymagmagstat.error;phot.magdoublenullable2MASS? 2MASS ID (HHMMSSss+DDMMSSs)meta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaEDR3? Gaia EDR3 source IDmeta.idnullableIdUnique numeric IDmeta.id;meta.mainintGmag? Gaia EDR3 G magnitudemagphot.mag;em.optdoublenullablee_Gmag? Error on Gmagmagstat.error;phot.magdoublenullableBPmag? Gaia EDR3 BP magnitudemagphot.mag;em.opt.Bdoublenullablee_BPmag? Error on BPmagmagstat.error;phot.magdoublenullableRPmag? Gaia EDR3 RP magnitudemagphot.mag;em.opt.Rdoublenullablee_RPmag? Error on RPmagmagstat.error;phot.magdoublenullableHIP? Hipparcos IDmeta.idintnullableHpmag? Hipparcos Hp magnitudemagphot.mag;em.opt.Vfloatnullablee_Hpmag? Error on Hpmagmagstat.error;phot.magdoublenullableTycho? Tycho ID (NNNN0NNNNN for TYC NNNN-NNNN-N)meta.idnullableBTmag? Tycho BT magnitudemagphot.mag;em.opt.Bfloatnullablee_BTmag? Error on BTmagmagstat.error;phot.magfloatnullableVTmag? Tycho VT magnitudemagphot.mag;em.opt.Vfloatnullablee_VTmag? Error on VTmagmagstat.error;phot.magfloatnullableSDSS? SDSS objIDmeta.idnullableumag? SDSS u magnitude (psf magnitude)magphot.mag;em.opt.Udoublenullablegmag? SDSS g magnitude (psf magnitude)magphot.mag;em.opt.Bdoublenullablermag? SDSS r magnitude (psf magnitude)magphot.mag;em.opt.Rdoublenullableimag? SDSS i magnitude (psf magnitude)magphot.mag;em.opt.Idoublenullablezmag? SDSS z magnitude (psf magnitude)magphot.mag;em.opt.Idoublenullablee_umag? Error on SDSS umagmagstat.error;phot.magdoublenullablee_gmag? Error on SDSS gmagmagstat.error;phot.magdoublenullablee_rmag? Error on SDSS rmagmagstat.error;phot.magdoublenullablee_imag? Error on SDSS imagmagstat.error;phot.magdoublenullablee_zmag? Error on SDSS zmagmagstat.error;phot.magdoublenullablePS1? Pan-STARRS ID (PSO JHHMMSS.sss+DDMMSS.sss)meta.idchargPmag? Pan-STARRS g magnitude (psf magnitude)magphot.mag;em.opt.Bdoublenullablee_gPmag? Error on Pan-STARRS gmagmagstat.error;phot.magdoublenullablerPmag? Pan-STARRS r magnitude (psf magnitude)magphot.mag;em.opt.RdoublenullableHmag? 2MASS H magnitudemagphot.mag;em.IR.HfloatnullableJmag? 2MASS J magnitudemagphot.mag;em.IR.JfloatnullableKmag? 2MASS K magnitudemagphot.mag;em.IR.Kfloatnullablee_Hmag? Error on Hmagmagstat.error;phot.magfloatnullablee_Jmag? Error on Jmagmagstat.error;phot.magfloatnullablee_Kmag? Error on Kmagmagstat.error;phot.magfloatnullableJ/A+A/664/A109/table9Transformations with other photometric systems; updated version by the authorXInput colorstat.paramcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSurveyProvenance of survey data (1)meta.notecharSystemPhotometric systemphotcharXminLower validity limitmagphot.magfloatXmaxUpper validity limitmagphot.magfloatYOutput magnitude differencestat.paramchara0Coefficient of zero-order termstat.fit.paramdoublea1Coefficient of first-order term (X)stat.fit.paramdoublea2Coefficient of second-order term (X^2^)stat.fit.paramdoublea3Coefficient of third-order term (X^3^)stat.fit.paramdoublea4Coefficient of fourth-order term (X^4^)stat.fit.paramdoublea5Coefficient of fifth-order term (X^5^)stat.fit.paramdoublea6Coefficient of sixth-order term (X^6^)stat.fit.paramdoublea7Coefficient of seventh-order term (X^7^)stat.fit.paramdoublea8Coefficient of eigth-order term (X^8^)stat.fit.paramdoublea9Coefficient of ninth-order term (X^9^)stat.fit.paramdoublesigmaSpread of the fit residualsmagstat.fit.residual;phot.mag;meta.modelleddoubleNNumber of stars used in the fitmeta.numberintValidityNotes on validity regime (2)meta.notecharNotesAdditional notesmeta.notechar