Difference between revisions of "March 24, 2011"

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<em>image from [http://target.lroc.asu.edu/da/qmap.html LROC]</em><br />
 
<em>image from [http://target.lroc.asu.edu/da/qmap.html LROC]</em><br />
 
<br />
 
<br />
The Lunar Reconnaissance Orbiter Camera team has released another tool to access <br />
+
The Lunar Reconnaissance Orbiter Camera team has released another tool to access  
and display wide angle and narrow angle camera images. QuickMap is a global map - <br />
+
and display wide angle and narrow angle camera images. QuickMap is a global map -  
equidistant cylindrical, and orthographic for the poles - with overlays for WAC and NAC <br />
+
equidistant cylindrical, and orthographic for the poles - with overlays for WAC and NAC  
images. The red image outlines are a nuisance (until you need them) and so the first <br />
+
images. The red image outlines are a nuisance (until you need them) and so the first  
thing I do is click the plus sign at upper right to turn them off, and then hit the minus at <br />
+
thing I do is click the plus sign at upper right to turn them off, and then hit the minus at  
bottom right to turn off the index map. Double clicking anywhere on the map will zoom <br />
+
bottom right to turn off the index map. Double clicking anywhere on the map will zoom  
in to double the resolution. A Google Maps clickable scale on the left allows clicking up <br />
+
in to double the resolution. A Google Maps clickable scale on the left allows clicking up  
or down to any desired scale from 32 km/pi to 0.5 m/pi.. Once you enlarge to 32 m/pixel <br />
+
or down to any desired scale from 32 km/pi to 0.5 m/pi.. Once you enlarge to 32 m/pixel  
the NAC images are overlaid on the WAC mosaic. At any scale you can overlay the <br />
+
the NAC images are overlaid on the WAC mosaic. At any scale you can overlay the  
LOLA altimetry coloration, making it very easy to compare morphology with topography. <br />
+
LOLA altimetry coloration, making it very easy to compare morphology with topography.  
I couldn't find a scale for the topo overlay - it would be fantastic to be able to click any <br />
+
I couldn't find a scale for the topo overlay - it would be fantastic to be able to click any  
point to determine its elevation, just as lat/long is displayed for every location. The LROC <br />
+
point to determine its elevation, just as lat/long is displayed for every location. The LROC  
team solicits suggestions. In addition to the elevation scale one, I think it would be very <br />
+
team solicits suggestions. In addition to the elevation scale one, I think it would be very  
useful to have a distance measuring tool, for finding the diameters of craters or boulders,<br />
+
useful to have a distance measuring tool, for finding the diameters of craters or boulders,
and to determine the lengths of rilles and ridges. Another capability that would be quite <br />
+
and to determine the lengths of rilles and ridges. Another capability that would be quite  
useful would be for feature names to appear as the cursor is moved over features. This <br />
+
useful would be for feature names to appear as the cursor is moved over features. This  
would be especially valuable for the farside, that I at least, know much less well than the <br />
+
would be especially valuable for the farside, that I at least, know much less well than the  
nearside. QuickMap is another very valuable tool that I will use frequently. Thanks to the <br />
+
nearside. QuickMap is another very valuable tool that I will use frequently. Thanks to the  
LROC team for providing it.<br />
+
LROC team for providing it.
 +
<br />
 
<br />
 
<br />
 
<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br />
 
<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br />
 
<br />
 
<br />
P.S.: Notice anything odd about the image above? It was mosaicked together using images<br />
+
P.S.: Notice anything odd about the image above? It was mosaicked together using images
illuminated from both directions. I can't tell you the name of the crater because I'd have<br />
+
illuminated from both directions. I can't tell you the name of the crater because I'd have
 
to drag out an atlas or start another program to access that information.<br />
 
to drag out an atlas or start another program to access that information.<br />
 
<br />
 
<br />
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<p><b>Tomorrow's LPOD:</b> [[March 25, 2011|Hello From the Universe]] </p>
 
<p><b>Tomorrow's LPOD:</b> [[March 25, 2011|Hello From the Universe]] </p>
 
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<hr />
 +
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{{wiki/ArticleFooter}}
 
{{wiki/ArticleFooter}}

Latest revision as of 17:14, 1 March 2015

Quick, Here is the Map

LPOD-Mar24-11.jpg
image from LROC

The Lunar Reconnaissance Orbiter Camera team has released another tool to access and display wide angle and narrow angle camera images. QuickMap is a global map - equidistant cylindrical, and orthographic for the poles - with overlays for WAC and NAC images. The red image outlines are a nuisance (until you need them) and so the first thing I do is click the plus sign at upper right to turn them off, and then hit the minus at bottom right to turn off the index map. Double clicking anywhere on the map will zoom in to double the resolution. A Google Maps clickable scale on the left allows clicking up or down to any desired scale from 32 km/pi to 0.5 m/pi.. Once you enlarge to 32 m/pixel the NAC images are overlaid on the WAC mosaic. At any scale you can overlay the LOLA altimetry coloration, making it very easy to compare morphology with topography. I couldn't find a scale for the topo overlay - it would be fantastic to be able to click any point to determine its elevation, just as lat/long is displayed for every location. The LROC team solicits suggestions. In addition to the elevation scale one, I think it would be very useful to have a distance measuring tool, for finding the diameters of craters or boulders, and to determine the lengths of rilles and ridges. Another capability that would be quite useful would be for feature names to appear as the cursor is moved over features. This would be especially valuable for the farside, that I at least, know much less well than the nearside. QuickMap is another very valuable tool that I will use frequently. Thanks to the LROC team for providing it.

Chuck Wood

P.S.: Notice anything odd about the image above? It was mosaicked together using images illuminated from both directions. I can't tell you the name of the crater because I'd have to drag out an atlas or start another program to access that information.

Yesterday's LPOD: Come Out On the Balcony for a Better View

Tomorrow's LPOD: Hello From the Universe



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