{"id":10564,"date":"2020-12-04T20:45:22","date_gmt":"2020-12-04T19:45:22","guid":{"rendered":"https:\/\/gaia.ub.edu\/?p=10564"},"modified":"2020-12-04T20:46:27","modified_gmt":"2020-12-04T19:46:27","slug":"cataleg-edr3-de-gaia-disponible-per-descarregar-en-un-format-de-compressio-mes-eficient","status":"publish","type":"post","link":"https:\/\/gaia.ub.edu\/?p=10564&lang=ca","title":{"rendered":"Cat\u00e0leg EDR3 de Gaia disponible per descarregar en un format de compressi\u00f3 m\u00e9s eficient"},"content":{"rendered":"<p>El grup Gaia de la Universitat de Barcelona (<a href=\"http:\/\/www.ieec.cat\">IEEC<\/a> &#8211; <a href=\"http:\/\/www.icc.ub.edu\">ICCUB<\/a>), en col\u00b7laboraci\u00f3 amb\u00a0<a href=\"https:\/\/www.dapcom.es\">DAPCOM Data Services<\/a>\u00a0(una empresa tecnol\u00f2gica <em>spin-off<\/em>\u00a0 de la <a href=\"https:\/\/www.upc.edu\">UPC<\/a>\u00a0i la <a href=\"https:\/\/www.ub.edu\">UB<\/a>), ha <strong>publicat una c\u00f2pia alternativa dels fitxers de dades amb el cat\u00e0leg complert del <a href=\"https:\/\/www.cosmos.esa.int\/web\/gaia\/early-data-release-3\">Gaia EDR3<\/a><\/strong> &#8211; la publicaci\u00f3 anticipada del tercer cat\u00e0leg de Gaia.<\/p>\n<p>El Gaia EDR3 es va publicar ahir, 3 de Desembre de 2020. A m\u00e9s del <a href=\"https:\/\/gea.esac.esa.int\/archive\/\">cat\u00e0leg\u00a0<em>on-line<\/em><\/a>, es va posar a disposici\u00f3 de la comunitat una versi\u00f3 en <a href=\"http:\/\/cdn.gea.esac.esa.int\/Gaia\/gedr3\/\">fitxers CSV<\/a> per a desc\u00e0rrega &#8211; una opci\u00f3 interessant per a an\u00e0lisis exhaustius. Oficialment, aquests fitxers s&#8217;ofereixen en format &#8220;<em>csv.gz<\/em>&#8220;, \u00e9s a dir, comprimits amb el conegut compressor <em>gzip<\/em>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9434 alignleft\" src=\"https:\/\/gaia.ub.edu\/wp-content\/uploads\/2019\/02\/logo-01_RGB_small.jpg\" alt=\"\" width=\"160\" height=\"121\" \/>DAPCOM proporciona FAPEC, un programari professional de compressi\u00f3 de dades que ofereix altes relacions de compressi\u00f3 amb una gran rapidesa d&#8217;execuci\u00f3. Una de les opcions incloses \u00e9s la compressi\u00f3 de fitxers de text tabulats (tipus CSV), com els del cat\u00e0leg Gaia EDR3. Com a servei a la comunitat astron\u00f2mica internacional, i tamb\u00e9 com a mostra de les capacitats de FAPEC, DAPCOM i el Grup Gaia IEEC\/ICCUB han convertit tots els fitxers CSV de la taula GaiaSource del Gaia EDR3 al format FAPEC, <strong>reduint-ne la mida total de 613 GB a 495 GB<\/strong> &#8211; \u00e9s a dir, <strong>un 19% menys que amb <em>gzip<\/em><\/strong>. Altres compressors de dades com\u00a0<em>bzip2<\/em>, <em>rar<\/em>, <em>Zstandard<\/em> o <em>7-zip<\/em> no arriben a aquestes xifres.<\/p>\n<p>Podeu descarregar el Gaia EDR3 en format <em>csv.fapec<\/em> aqu\u00ed:<\/p>\n<pre style=\"text-align: center;\"><a href=\"https:\/\/gaia.ub.edu\/GaiaEDR3\/\"><strong>Desc\u00e0rrega del Gaia EDR3 en <em>csv.fapec<\/em><\/strong><\/a><\/pre>\n<p>Durant els propers dies, tamb\u00e9 es convertiran i publicaran la resta de les taules disponibles al cat\u00e0leg Gaia EDR3.<\/p>\n<p>Podeu obtenir\u00a0<strong>llic\u00e8ncies gratu\u00eftes de descompressi\u00f3 FAPEC\u00a0<\/strong>a la <a href=\"https:\/\/www.dapcom.es\/get-fapec\/\">p\u00e0gina web de DAPCOM<\/a>. DAPCOM est\u00e0 preparant una nova versi\u00f3 de FAPEC, la qual inclour\u00e0 un descompressor descarregable gratu\u00eftament, aix\u00ed com suport per al seu \u00fas a Python.<\/p>\n<p>\u00a1Que ho disfruteu!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El grup Gaia de la Universitat de Barcelona (IEEC &#8211; ICCUB), en col\u00b7laboraci\u00f3 amb\u00a0DAPCOM Data Services\u00a0(una empresa tecnol\u00f2gica spin-off\u00a0 de la UPC\u00a0i la UB), ha publicat una c\u00f2pia alternativa dels fitxers de dades amb el cat\u00e0leg complert del Gaia EDR3 &#8211; la publicaci\u00f3 anticipada del tercer cat\u00e0leg de Gaia. El Gaia EDR3 es va publicar [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":9466,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[98,108,109,118],"tags":[132,131],"class_list":["post-10564","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-ca","category-hot-topics-ca","category-news-ca","category-slider-ca","tag-fapec-ca","tag-gaiaedr3-ca"],"_links":{"self":[{"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fposts%2F10564&lang=ca","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fposts&lang=ca"}],"about":[{"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Ftypes%2Fpost&lang=ca"}],"author":[{"embeddable":true,"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fusers%2F9&lang=ca"}],"replies":[{"embeddable":true,"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&lang=ca&post=10564"}],"version-history":[{"count":2,"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fposts%2F10564%2Frevisions&lang=ca"}],"predecessor-version":[{"id":10568,"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fposts%2F10564%2Frevisions%2F10568&lang=ca"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia%2F9466&lang=ca"}],"wp:attachment":[{"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&lang=ca&parent=10564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&lang=ca&post=10564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaia.ub.edu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&lang=ca&post=10564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}