{"id":1972,"date":"2021-12-10T11:34:47","date_gmt":"2021-12-10T10:34:47","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/en\/?page_id=1972"},"modified":"2021-12-17T15:42:06","modified_gmt":"2021-12-17T14:42:06","slug":"observing-overheads","status":"publish","type":"page","link":"https:\/\/stel.asu.cas.cz\/en\/telescope\/observations\/observing-overheads\/","title":{"rendered":"Observing Overheads"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">Telescope and dome<\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Telescope overheads<\/span><\/strong><\/th><th class=\"has-text-align-left\" data-align=\"left\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Time<\/span><\/strong><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Target acquisition (imaging)<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>4 min (max)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Target acquisition (spectroscopy)<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>6 min (max)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Instruments change (echelle &#8211; single &#8211; photometry)<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>30 s<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background has-vivid-cyan-blue-background-color has-vivid-cyan-blue-color\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">Instruments <\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Ond\u0159ejov <strong>Echelle spectrograph<\/strong> (OES)<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>reading\u2013out:  <strong>43 s<\/strong> <\/li><\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">Standard calibration exposure times<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">OES Exposure<\/span><\/strong><\/th><th class=\"has-text-align-left\" data-align=\"left\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Time<\/span><\/strong><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Flat<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>25 s<\/strong><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Dome-flat<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>700 s<\/strong><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Comp<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>5 s<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background has-vivid-cyan-blue-background-color has-vivid-cyan-blue-color\"\/>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Single order spectrograph<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>reading\u2013out: <strong>19 s<\/strong> <\/li><\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">Calibration e<strong>xposures for different grating angles<\/strong><\/h5>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><td><strong>Center of the line<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>Gaia*<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>CA II<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>He I<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>H\u03b1<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>H\u03b2<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>H<strong>\u03b3<\/strong><\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>H\u03b4<\/strong><\/td><\/tr><tr><td><strong>Flat<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>15 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>5 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>40 s<\/strong><\/td><\/tr><tr><td><strong>Comp Th-Ar<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>10 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>20 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>40 s<\/strong><\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong>40 s<\/strong><\/td><\/tr><\/tbody><\/table><figcaption>* &#8216;Gaia&#8217; corresponds to wevelengths 8400-8870 \u00c5 <\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>change of the grating position (maximum for any spectral region):  <strong>30 s<\/strong><\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Photometric camera<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>reading\u2013out (binning 1&#215;1):  <strong>10 s<\/strong><\/li><li>change of the photometric filters: <strong>6 s<\/strong><\/li><li>photometric offsets: <strong>few seconds<\/strong> (depending on value of offset)   <\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background has-vivid-cyan-blue-background-color has-vivid-cyan-blue-color\"\/>\n\n\n\n<p>For any further questions about the telescope, instruments performance, or observational overheads, please write us to email <a href=\"mailto:proposal@asu.cas.cz\"><strong>proposal@asu.cas.cz<\/strong><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Telescope and dome Telescope overheads Time Target acquisition (imaging) 4 min (max) Target acquisition (spectroscopy) 6 min (max) Instruments change (echelle &#8211; single &#8211; photometry)<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":517,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1972","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/pages\/1972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/comments?post=1972"}],"version-history":[{"count":61,"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/pages\/1972\/revisions"}],"predecessor-version":[{"id":2318,"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/pages\/1972\/revisions\/2318"}],"up":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/pages\/517"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/en\/wp-json\/wp\/v2\/media?parent=1972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}