{"id":15887,"date":"2015-06-13T01:00:01","date_gmt":"2015-06-13T11:00:01","guid":{"rendered":"http:\/\/darkerview.com\/wordpress\/?p=15887"},"modified":"2015-06-13T11:52:05","modified_gmt":"2015-06-13T21:52:05","slug":"on-time","status":"publish","type":"post","link":"https:\/\/darkerview.com\/wordpress\/?p=15887","title":{"rendered":"On Time Again"},"content":{"rendered":"<p>So last month <a href=\"https:\/\/darkerview.com\/wordpress\/?p=15580\" target=\"_blank\">the observatory clocks decided is was 1995<\/a>.  A software bug interfered with proper decoding of the GPS time signal.  For a few weeks we got by by kludging two of the old clocks together in a creative way to provide good time for the telescopes.<\/p>\n<p>The new clocks are now fully online and operational.  I ran one of the new time servers for a couple weeks while keeping the old time servers in place as a backup.  These have now been removed, with a second new unit installed as an in-place spare.<\/p>\n<p>Hopefully this will keep everything on-time for the foreseeable future.  Two new precision clocks, <a href=\"http:\/\/www.microsemi.com\/products\/timing-synchronization-systems\/time-frequency-distribution\/network-appliances-servers\/syncserver\/syncserver-s350\" target=\"_blank\">Microsemi SyncServer S350&#8217;s<\/a>, time accurate to microseconds.<\/p>\n<p>Meantime there may be a fix for the old equipment, a new GPS module by <a href=\"http:\/\/www.heoldesign.com\/\" target=\"_blank\">Heol Design<\/a>.  We have one on order to try.  It would be a shame to throw out these very nice clocks.<\/p>\n<figure id=\"attachment_15888\" aria-describedby=\"caption-attachment-15888\" style=\"width: 600px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/darkerview.com\/wordpress\/?attachment_id=15888\" rel=\"attachment wp-att-15888\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2015\/06\/CH36-60-15163-DC-600x400.jpg\" alt=\"Observatory Clocks\" width=\"600\" height=\"400\" class=\"size-medium wp-image-15888\" srcset=\"https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2015\/06\/CH36-60-15163-DC-600x400.jpg 600w, https:\/\/darkerview.com\/wordpress\/wp-content\/uploads\/2015\/06\/CH36-60-15163-DC.jpg 900w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/a><figcaption id=\"caption-attachment-15888\" class=\"wp-caption-text\">Two new GPS time servers installed in the Keck 2 computer room<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>So last month the observatory clocks decided is was 1995. A software bug interfered with proper decoding of the GPS time signal. For a few weeks we got by by kludging two of the old clocks together in a creative way to provide good time for the telescopes. The new clocks are now fully online &hellip; <a href=\"https:\/\/darkerview.com\/wordpress\/?p=15887\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;On Time Again&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[243,242,50,215,439],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/15887"}],"collection":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15887"}],"version-history":[{"count":5,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/15887\/revisions"}],"predecessor-version":[{"id":15890,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/15887\/revisions\/15890"}],"wp:attachment":[{"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/darkerview.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}