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	<title>Comments on: JUNO: 3days 8hours and counting</title>
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	<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/</link>
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		<title>By: ER</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36957</link>
		<dc:creator>ER</dc:creator>
		<pubDate>Tue, 05 Jul 2016 17:42:36 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36957</guid>
		<description>As a Luddite imagery guy of the paleo-LANDSAT era, a full description or specification of an image usually included the number of pixels (a 1k x 1k image contained 1 million pixels).  It also mentioned the depth or graylevel resolution of each pixel  ( BIT = 1 graylevel per pixel--black or white, BYTE = 8 bits = 256 graylevels per pixel, SHORT INTEGER = 16 bits = 32,768 gray levels, and so on...).  Also included in the spec was the number of bands; 1 band was black and white or panchromatic image, 3 bands could be assigned to the Red, Green, Blue color guns of a true color display device, and usually additional bands assigned to the IR or UV could also be registered to the image.

So, for example, a typical image suitable for a fairly realistic magazine color illustration of a portrait, still life or landscape might have 3 bands (RGB) of 512 x 512 byte pixels: a total of 3 x 512 x 512 x 8 = 6,291,456 bits.

I&#039;m not being nit-picky here, I&#039;m just curious to see how much information can be extracted from one image, its intensity, color, and spatial resolution--how faithful its color, how much magnification it can stand, and the full dynamic range of its light levels.  The example I gave above would be fine for a color snapshot of a pretty girl or a sailboat, but would stand up to only limited enhancement, or be of limited use for scientific analysis.

It appears the nomenclature conventions have changed since I worked in the field.</description>
		<content:encoded><![CDATA[<p>As a Luddite imagery guy of the paleo-LANDSAT era, a full description or specification of an image usually included the number of pixels (a 1k x 1k image contained 1 million pixels).  It also mentioned the depth or graylevel resolution of each pixel  ( BIT = 1 graylevel per pixel&#8211;black or white, BYTE = 8 bits = 256 graylevels per pixel, SHORT INTEGER = 16 bits = 32,768 gray levels, and so on&#8230;).  Also included in the spec was the number of bands; 1 band was black and white or panchromatic image, 3 bands could be assigned to the Red, Green, Blue color guns of a true color display device, and usually additional bands assigned to the IR or UV could also be registered to the image.</p>
<p>So, for example, a typical image suitable for a fairly realistic magazine color illustration of a portrait, still life or landscape might have 3 bands (RGB) of 512 x 512 byte pixels: a total of 3 x 512 x 512 x 8 = 6,291,456 bits.</p>
<p>I&#8217;m not being nit-picky here, I&#8217;m just curious to see how much information can be extracted from one image, its intensity, color, and spatial resolution&#8211;how faithful its color, how much magnification it can stand, and the full dynamic range of its light levels.  The example I gave above would be fine for a color snapshot of a pretty girl or a sailboat, but would stand up to only limited enhancement, or be of limited use for scientific analysis.</p>
<p>It appears the nomenclature conventions have changed since I worked in the field.</p>
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		<title>By: Robert</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36956</link>
		<dc:creator>Robert</dc:creator>
		<pubDate>Tue, 05 Jul 2016 16:41:22 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36956</guid>
		<description>The imager may have been an afterthought, but it sounds like they didn&#039;t skimp: It&#039;ll provide ultra HD 4K images.

I haven&#039;t been interested in upgrading to a 4K display because of the lack of content. Now, anticipating being able to look down into the clouds of Jupiter at extremely high resolutions...now I just may have a reason. 

I think my fascination is because I&#039;ve seen it in my mind&#039;s eye so many times, reading so many science fiction stories that take place at Jupiter. In real life we&#039;ve focused on the moons but neglected study of Jupiter itself; but in sci-fi, authors keep coming back to imagine looking into the clouds, and descending into the clouds, and trying to describe in words an environment of world-sized clouds and canyons and eddies, and winds of many thousands of miles an hour.

And hydrogen-breathing continent-sized &quot;whales&quot; and other fancies, but that would be too much to ask. I&#039;d be happy with clouds.

Pretty soon, we&#039;ll get to take our own close up look. For real.

This isn&#039;t the first time a camera was added as an afterthought to a robot probe. Scientists get a funny kind of tunnel vision, they have the imaginations to see an entire world through the one instrument they&#039;ve built and operated. That keyhole view is enough for a scientist, but the rest of us need to see the whole wondrous world with our own eyes.

Juno has the potential to be another great mission of space exploration. NASA does indeed rock!</description>
		<content:encoded><![CDATA[<p>The imager may have been an afterthought, but it sounds like they didn&#8217;t skimp: It&#8217;ll provide ultra HD 4K images.</p>
<p>I haven&#8217;t been interested in upgrading to a 4K display because of the lack of content. Now, anticipating being able to look down into the clouds of Jupiter at extremely high resolutions&#8230;now I just may have a reason. </p>
<p>I think my fascination is because I&#8217;ve seen it in my mind&#8217;s eye so many times, reading so many science fiction stories that take place at Jupiter. In real life we&#8217;ve focused on the moons but neglected study of Jupiter itself; but in sci-fi, authors keep coming back to imagine looking into the clouds, and descending into the clouds, and trying to describe in words an environment of world-sized clouds and canyons and eddies, and winds of many thousands of miles an hour.</p>
<p>And hydrogen-breathing continent-sized &#8220;whales&#8221; and other fancies, but that would be too much to ask. I&#8217;d be happy with clouds.</p>
<p>Pretty soon, we&#8217;ll get to take our own close up look. For real.</p>
<p>This isn&#8217;t the first time a camera was added as an afterthought to a robot probe. Scientists get a funny kind of tunnel vision, they have the imaginations to see an entire world through the one instrument they&#8217;ve built and operated. That keyhole view is enough for a scientist, but the rest of us need to see the whole wondrous world with our own eyes.</p>
<p>Juno has the potential to be another great mission of space exploration. NASA does indeed rock!</p>
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		<title>By: Robert</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36955</link>
		<dc:creator>Robert</dc:creator>
		<pubDate>Tue, 05 Jul 2016 16:27:19 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36955</guid>
		<description>&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed/XpsQimYhNkA&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;
https://www.youtube.com/watch?v=XpsQimYhNkA</description>
		<content:encoded><![CDATA[<p><iframe width="560" height="315" src="https://www.youtube.com/embed/XpsQimYhNkA" frameborder="0" allowfullscreen></iframe><br />
<a href="https://www.youtube.com/watch?v=XpsQimYhNkA" rel="nofollow">https://www.youtube.com/watch?v=XpsQimYhNkA</a></p>
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		<title>By: ER</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36954</link>
		<dc:creator>ER</dc:creator>
		<pubDate>Tue, 05 Jul 2016 16:25:14 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36954</guid>
		<description>I heard one NASA dude explain that this mission is tasked with study of the cis-Jovian environment, and has instruments aboard to examine radiation, particle fluxes and the magnetic environment, all in an effort to investigate the planet&#039;s internal structure and its evolution, as well as its effect on the solar system as a whole.  The imager was added on as an afterthought, primarily to provide the public with something they could easily understand: the aesthetic impact of pretty pictures.

I don&#039;t mean to either exagerrate or belittle this public purpose, or to criticize mission planners for thinking this way. I understand enough of the physics involved to realize that imagery, regardless of how spectacular, can only give a limited idea of the physical processes going on below the cloud tops.  But I also realize we apes are primarily visual creatures, and a picture can convey so much information, and beyond that, understanding, of what is going on.  This is especially the case with modern spacecraft imagery, which exploits wavelengths of light and post-processing techniques which can reveal so much not noticeable to the unaided eye.  We may even see something totally unexpected, maybe something wonderful.

My interest in astronomy has taught me the value of spectroscopy, photometry, bolometric analysis and x-ray, radio, gamma-ray, IR and UV studies.  But for sheer drama and beauty, and eventually, scientific insight, CCD detectors and the photographic emulsion still are hard to beat.  Jupiter has no geomorphology like Pluto or Ceres, but even the shifting patterns of the cloud tops have something to teach us.  I can&#039;t wait.</description>
		<content:encoded><![CDATA[<p>I heard one NASA dude explain that this mission is tasked with study of the cis-Jovian environment, and has instruments aboard to examine radiation, particle fluxes and the magnetic environment, all in an effort to investigate the planet&#8217;s internal structure and its evolution, as well as its effect on the solar system as a whole.  The imager was added on as an afterthought, primarily to provide the public with something they could easily understand: the aesthetic impact of pretty pictures.</p>
<p>I don&#8217;t mean to either exagerrate or belittle this public purpose, or to criticize mission planners for thinking this way. I understand enough of the physics involved to realize that imagery, regardless of how spectacular, can only give a limited idea of the physical processes going on below the cloud tops.  But I also realize we apes are primarily visual creatures, and a picture can convey so much information, and beyond that, understanding, of what is going on.  This is especially the case with modern spacecraft imagery, which exploits wavelengths of light and post-processing techniques which can reveal so much not noticeable to the unaided eye.  We may even see something totally unexpected, maybe something wonderful.</p>
<p>My interest in astronomy has taught me the value of spectroscopy, photometry, bolometric analysis and x-ray, radio, gamma-ray, IR and UV studies.  But for sheer drama and beauty, and eventually, scientific insight, CCD detectors and the photographic emulsion still are hard to beat.  Jupiter has no geomorphology like Pluto or Ceres, but even the shifting patterns of the cloud tops have something to teach us.  I can&#8217;t wait.</p>
]]></content:encoded>
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	<item>
		<title>By: RL</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36952</link>
		<dc:creator>RL</dc:creator>
		<pubDate>Tue, 05 Jul 2016 14:09:15 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36952</guid>
		<description>But still, it was an awesome achievement!
&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed/Ki_Af_o9Q9s&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;
https://www.youtube.com/watch?v=Ki_Af_o9Q9s
 </description>
		<content:encoded><![CDATA[<p>But still, it was an awesome achievement!<br />
<iframe width="560" height="315" src="https://www.youtube.com/embed/Ki_Af_o9Q9s" frameborder="0" allowfullscreen></iframe><br />
<a href="https://www.youtube.com/watch?v=Ki_Af_o9Q9s" rel="nofollow">https://www.youtube.com/watch?v=Ki_Af_o9Q9s</a></p>
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		<title>By: Robert</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36951</link>
		<dc:creator>Robert</dc:creator>
		<pubDate>Tue, 05 Jul 2016 05:21:42 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36951</guid>
		<description>I&#039;m watching the press conference on the live stream, and they just presented a timelapse video from frames taken on the inbound journey. Stunning. Shows the major moons circling Jupiter, all laid out like a schematic diagram. Right now they&#039;re explaining the significance, seeing harmonic motion in the Jovian system. &quot;Mini solar system&quot;. 

I doubt it&#039;s been released yet, but watch for it. Impressive.</description>
		<content:encoded><![CDATA[<p>I&#8217;m watching the press conference on the live stream, and they just presented a timelapse video from frames taken on the inbound journey. Stunning. Shows the major moons circling Jupiter, all laid out like a schematic diagram. Right now they&#8217;re explaining the significance, seeing harmonic motion in the Jovian system. &#8220;Mini solar system&#8221;. </p>
<p>I doubt it&#8217;s been released yet, but watch for it. Impressive.</p>
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		<title>By: RL</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36950</link>
		<dc:creator>RL</dc:creator>
		<pubDate>Tue, 05 Jul 2016 04:03:18 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36950</guid>
		<description>Looks like all went as planned so far... Its in orbit!</description>
		<content:encoded><![CDATA[<p>Looks like all went as planned so far&#8230; Its in orbit!</p>
]]></content:encoded>
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	<item>
		<title>By: RL</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36949</link>
		<dc:creator>RL</dc:creator>
		<pubDate>Tue, 05 Jul 2016 02:35:32 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36949</guid>
		<description>Live stream of Juno orbit insertion starting now....</description>
		<content:encoded><![CDATA[<p>Live stream of Juno orbit insertion starting now&#8230;.</p>
]]></content:encoded>
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	<item>
		<title>By: RL</title>
		<link>https://habitablezone.com/2016/07/01/juno-3days-8hours-and-counting/#comment-36948</link>
		<dc:creator>RL</dc:creator>
		<pubDate>Mon, 04 Jul 2016 23:26:20 +0000</pubDate>
		<guid isPermaLink="false">https://www.habitablezone.com/?p=58500#comment-36948</guid>
		<description>&lt;a href=&quot;http://www.ustream.tv/recorded/89211042&quot; target=&quot;_blank&quot; rel=&quot;nofollow&quot;&gt;HERE&lt;/a&gt;

http://www.ustream.tv/recorded/89211042

I think the live stream of the Orbital insertion will be &lt;a href=&quot;http://www.ustream.tv/channel/5808990&quot; target=&quot;_blank&quot; rel=&quot;nofollow&quot;&gt;here&lt;/a&gt;:
http://www.ustream.tv/channel/5808990</description>
		<content:encoded><![CDATA[<p><a href="http://www.ustream.tv/recorded/89211042" target="_blank" rel="nofollow">HERE</a></p>
<p><a href="http://www.ustream.tv/recorded/89211042" rel="nofollow">http://www.ustream.tv/recorded/89211042</a></p>
<p>I think the live stream of the Orbital insertion will be <a href="http://www.ustream.tv/channel/5808990" target="_blank" rel="nofollow">here</a>:<br />
<a href="http://www.ustream.tv/channel/5808990" rel="nofollow">http://www.ustream.tv/channel/5808990</a></p>
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