{"id":6291,"date":"2013-08-01T22:58:22","date_gmt":"2013-08-02T02:58:22","guid":{"rendered":"http:\/\/droppingballast.com\/?p=6291"},"modified":"2013-08-01T22:58:46","modified_gmt":"2013-08-02T02:58:46","slug":"beam-mapping","status":"publish","type":"post","link":"http:\/\/droppingballast.com\/?p=6291","title":{"rendered":"Beam Mapping"},"content":{"rendered":"<p>With Theo on the gondola, it&#8217;s time to start scanning. That is, after all, what we&#8217;re supposed to be able to do. As a telescope. The first thing to scan is a calibration source, mapping out Spider&#8217;s beams (how each detector sees a point source).<\/p>\n<!-- Awesome Flickr Gallery Start --><!-- - Version - 3.5.6 - User ID - 27717602@N03 - Photoset ID - 72157634891069565 - Gallery ID -  - Group ID -  - Tags -  - Popular -  - Per Page - 100 - Sort Order - flickr - Photo Size - _m - Custom Size - 0 - Square - false - Captions - on - Description - on - Columns - 3 - Credit Note - off - Background Color - Transparent - Width - auto - Pagination - on - Slideshow - flickr - Disable slideshow? - --><div class='afg-gallery custom-gallery-89' id='afg-89' style='background-color:Transparent; width:100%; color:; border-color:Transparent;'><div class='afg-table' style='width:100%'><div class='afg-row'><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9420444624' title='Sun shields in the highbay'><img class='afg-img' title='Sun shields in the highbay' src='https:\/\/farm4.static.flickr.com\/3782\/9420444624_43197f82b2_m.jpg' alt='Sun shields in the highbay \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9420444624\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Sun shields in the highbay <\/div><div class='afg-description'>Getting antenna cables routed<\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417678799' title='Natalie routes her GPS cables'><img class='afg-img' title='Natalie routes her GPS cables' src='https:\/\/farm4.static.flickr.com\/3798\/9417678799_d4f5569754_m.jpg' alt='Natalie routes her GPS cables \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417678799\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Natalie routes her GPS cables <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417679179' title='Sean and Johanna on the cherry picker'><img class='afg-img' title='Sean and Johanna on the cherry picker' src='https:\/\/farm3.static.flickr.com\/2845\/9417679179_7597fa05b7_m.jpg' alt='Sean and Johanna on the cherry picker \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417679179\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Sean and Johanna on the cherry picker <\/div><div class='afg-description'>Which is out tool of choice for accessing Theo on the gondola<\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9420445692' title='Backing in'><img class='afg-img' title='Backing in' src='https:\/\/farm4.static.flickr.com\/3768\/9420445692_22f134542c_m.jpg' alt='Backing in \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9420445692\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Backing in <\/div><div class='afg-description'>Carefully<\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417679885' title='Setting up the beam map source'><img class='afg-img' title='Setting up the beam map source' src='https:\/\/farm6.static.flickr.com\/5450\/9417679885_1d027a107a_m.jpg' alt='Setting up the beam map source \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417679885\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Setting up the beam map source <\/div><div class='afg-description'>Holding it up really high is the cherry picker's other purpose<\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417680271' title='Fully extended'><img class='afg-img' title='Fully extended' src='https:\/\/farm8.static.flickr.com\/7354\/9417680271_712fe75e10_m.jpg' alt='Fully extended \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417680271\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Fully extended <\/div><div class='afg-description'><\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417680707' title='Spider seeing light'><img class='afg-img' title='Spider seeing light' src='https:\/\/farm8.static.flickr.com\/7374\/9417680707_98dddf8847_m.jpg' alt='Spider seeing light \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417680707\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Spider seeing light <\/div><div class='afg-description'>With two telescopes open<\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9420447228' title='Beam mapping'><img class='afg-img' title='Beam mapping' src='https:\/\/farm4.static.flickr.com\/3673\/9420447228_6380debd8e_m.jpg' alt='Beam mapping \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9420447228\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Beam mapping <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417681495' title='The source'><img class='afg-img' title='The source' src='https:\/\/farm8.static.flickr.com\/7433\/9417681495_5d13a7c5e0_m.jpg' alt='The source \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417681495\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>The source <\/div><div class='afg-description'>A black board for the star camera to look at, and the thermal source on the right<\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9420448008' title='Scanning with all five telescopes'><img class='afg-img' title='Scanning with all five telescopes' src='https:\/\/farm4.static.flickr.com\/3833\/9420448008_21094a8e92_m.jpg' alt='Scanning with all five telescopes \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9420448008\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Scanning with all five telescopes <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417682185' title='Sun sensor, with aritificial sun'><img class='afg-img' title='Sun sensor, with aritificial sun' src='https:\/\/farm8.static.flickr.com\/7401\/9417682185_93c776ee22_m.jpg' alt='Sun sensor, with aritificial sun \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417682185\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Sun sensor, with aritificial sun <\/div><div class='afg-description'>Just to make the highby a little hotter, on a hot day with the big door open<\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417682561' title='Watching science happen'><img class='afg-img' title='Watching science happen' src='https:\/\/farm4.static.flickr.com\/3692\/9417682561_c0dbbbc32d_m.jpg' alt='Watching science happen \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417682561\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Watching science happen <\/div><div class='afg-description'>Detector timestreams as they observe the source. Good watching<\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417682931' title='Lorenzo repaired the espresso machine (since rebroken...)'><img class='afg-img' title='Lorenzo repaired the espresso machine (since rebroken...)' src='https:\/\/farm4.static.flickr.com\/3733\/9417682931_e7d5567366_m.jpg' alt='Lorenzo repaired the espresso machine (since rebroken...) \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417682931\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Lorenzo repaired the espresso machine (since rebroken...) <\/div><div class='afg-description'>Because beam mapping involves a lot of waiting<\/div><\/div><div class='afg-cell' style='width:33%;'><a   target='_blank' href='https:\/\/www.flickr.com\/photos\/27717602@N03\/9417683301' title='Mapping at night'><img class='afg-img' title='Mapping at night' src='https:\/\/farm8.static.flickr.com\/7354\/9417683301_eeddd49589_m.jpg' alt='Mapping at night \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/9417683301\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Mapping at night <\/div><div class='afg-description'>You can see the orange glow of the thermal source<\/div><\/div><\/div><\/div><\/div><!-- Awesome Flickr Gallery End -->\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" src=\"http:\/\/farm4.staticflickr.com\/3673\/9420447228_6380debd8e_n.jpg\" width=\"213\" height=\"320\" alt=\"Beam mapping\"> With Theo on the gondola, it&#8217;s time to start scanning. That is, after all, what we&#8217;re supposed to be able to do. As a telescope. The first thing to scan is a calibration source, mapping out Spider&#8217;s beams (how each detector sees a point source). [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16,8],"tags":[],"_links":{"self":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/6291"}],"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=6291"}],"version-history":[{"count":4,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/6291\/revisions"}],"predecessor-version":[{"id":6295,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/6291\/revisions\/6295"}],"wp:attachment":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6291"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}