{"id":5096,"date":"2011-01-30T17:36:15","date_gmt":"2011-01-30T21:36:15","guid":{"rendered":"http:\/\/galadriel.astro.utoronto.ca\/ballast\/?p=5096"},"modified":"2011-01-30T17:36:15","modified_gmt":"2011-01-30T21:36:15","slug":"k1-debugging-and-reclosing","status":"publish","type":"post","link":"http:\/\/droppingballast.com\/?p=5096","title":{"rendered":"K1 Debugging and Reclosing"},"content":{"rendered":"<p>While the K1 cryostat was closed on the 13th, the 14th was spent debugging issues with the waveplate rotator. At the end of the day, it was ready to go, but at this point the process didn&#8217;t end until well past midnight. But, because my posts are sorted by day, this only includes everything up to midnight. To be continued&#8230;<\/p>\n<p>This was also the dreaded day on which Walt left. In addition to being the general group IT guy, Walt is a very rare kind of person: the kind familiar with writing code for gcp. gcp is the huge control program used by several telescopes, including all three currently active at the south pole. For this&mdash;and for his company, of course&mdash;he would be missed. Thankfully, he had finished all the gcp hacking I required.<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-5096 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5100'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4936-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Matching Testing\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5100\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4936-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4936-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4936-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5100'>\n\t\t\t\tColin and Grant debug funny connections, in matching outfits\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5101'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4938-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Spittoon Bottom\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5101\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4938-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4938-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4938-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5101'>\n\t\t\t\tThe bottom of a &#8220;spittoon&#8221;. Not for actual spitting\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5102'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4968-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Heat Strap\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5102\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4968-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4968-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4968-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5102'>\n\t\t\t\tHeater strap around the cryostat. Speeds up pumpout\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5103'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4970-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Fridge\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5103\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4970-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4970-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4970-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5103'>\n\t\t\t\tFridge, not yet installed\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5104'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4973-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Fridge and Gold Plating\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5104\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4973-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4973-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4973-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5104'>\n\t\t\t\tFridge and gold-plated heat strap. Opinions differ on how many things in a cryostat should be gold-plated\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5105'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4976-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Building Reduced\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5105\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4976-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4976-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4976-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5105'>\n\t\t\t\tBuilding, reduced\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5106'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4982-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"People Leaving\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5106\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4982-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4982-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4982-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5106'>\n\t\t\t\tPeople file out of Destination Alpha (the main station door)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5107'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4983-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Hercules\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5107\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4983-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4983-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4983-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5107'>\n\t\t\t\tThe plane quickly unloads and refuels before taking the passengers away\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5108'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4989-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"SPT Shirt\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5108\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4989-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4989-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4989-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5108'>\n\t\t\t\tWalt models his complementary SPT shirt\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5109'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4996-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"The Most Dangerous Game\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5109\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4996-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4996-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_4996-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5109'>\n\t\t\t\tThe most dangerous game: soldering on the cryostat\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5110'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5002-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Jumper\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5110\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5002-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5002-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5002-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5110'>\n\t\t\t\tOriginal attempted fix: a little jumper wire\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5111'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5005-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Chin-Lin Bubbles\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5111\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5005-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5005-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5005-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5111'>\n\t\t\t\tChin-Lin takes a well-earned bubble break\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5112'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5011-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"SPT\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5112\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5011-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5011-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5011-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5112'>\n\t\t\t\tSPT, seen from MAPO, not quite looking completely away this time\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5113'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5020-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Waveplate Rotator Electronics\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5113\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5020-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5020-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5020-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5113'>\n\t\t\t\tWarm electronics for the waveplate rotator\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5114'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5021-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"More Waveplate Electronics\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5114\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5021-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5021-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5021-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5114'>\n\t\t\t\tMore of the waveplate electronics, in their box\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5123'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5051-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"The Grouch\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5123\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5051-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5051-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5051-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5123'>\n\t\t\t\tIf Oscar really lived here, the waveplate electronics box would need more garbage\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5115'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5026-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Really Thin Legs\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5115\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5026-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5026-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5026-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5115'>\n\t\t\t\tRidiculously thin carbon fiber legs. Actually useful for thermal reasons\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5116'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5030-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Stained Glass Angel\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5116\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5030-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5030-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5030-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5116'>\n\t\t\t\tA stained-glass angel graces the door out to the roof\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5117'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5033-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Encoder Ticks\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5117\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5033-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5033-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5033-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5117'>\n\t\t\t\tReflective encoder ticks for reading rotator position\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5118'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5035-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Dancing Fool\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5118\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5035-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5035-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5035-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5118'>\n\t\t\t\tDancing Fool. <a href=\"index.php?p=4857\">Not the first<\/a> I&#8217;ve encountered in Antarctica\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5119'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5036-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Final Fix\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5119\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5036-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5036-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5036-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5119'>\n\t\t\t\tFinal waveplate fix: a pair or rearranged wires\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5120'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5045-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Heat Strapped\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5120\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5045-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5045-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5045-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5120'>\n\t\t\t\tHeat strap, strapped. In place\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5121'><img width=\"150\" height=\"100\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5046-150x100.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Group Action Shot\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5121\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5046-150x100.jpg 150w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5046-250x166.jpg 250w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5046-1024x682.jpg 1024w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5121'>\n\t\t\t\tMega Group Action Shot!\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5122'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5048-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Strapped Wires\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5122\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5048-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5048-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5048-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5122'>\n\t\t\t\tWires rigidly strapped, to try to reduce microphonics\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='http:\/\/droppingballast.com\/?attachment_id=5124'><img width=\"100\" height=\"150\" src=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5055-100x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Ze Choppa\" decoding=\"async\" loading=\"lazy\" aria-describedby=\"gallery-1-5124\" srcset=\"http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5055-100x150.jpg 100w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5055-166x250.jpg 166w, http:\/\/droppingballast.com\/ballast\/wp-content\/uploads\/2011\/01\/img_5055-682x1024.jpg 682w\" sizes=\"(max-width: 100px) 100vw, 100px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-5124'>\n\t\t\t\tJustus gives a sneak peak of Ze Choppa, his bigger and better chopper\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p>Finally, I have a special feature: a slowly rotating tour of the bottom section of an insert containing the fridge, JFET module, housekeeping stuff, and cabling\/breakout electronics.<br \/>\n[image title=&#8221;Insert-Go-Round&#8221; size=&#8221;full&#8221; id=&#8221;5125&#8243; align=&#8221;left&#8221; alt=&#8221;Animated Insert-Go-Round&#8221; ]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>While the K1 cryostat was closed on the 13th, the 14th was spent debugging issues with the waveplate rotator. At the end of the day, it was ready to go, but at this point the process didn&#8217;t end until well past midnight. But, because my posts are sorted by day, this only includes everything up [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/5096"}],"collection":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5096"}],"version-history":[{"count":5,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/5096\/revisions"}],"predecessor-version":[{"id":5145,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/5096\/revisions\/5145"}],"wp:attachment":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5096"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}