posted on Feb, 24 2011 @ 04:09 PM
Originally posted by Boreas
I see lots of strange things but then again, it is the moon. Wish you could zoom in further, though. I mean, come on, we can take snapshots of a
bajillion galaxies but this is the best we can get of that big rock in orbit? Still, thanks for sharing!
If you go to this site
you ca access ~100,000 LROC Narrow Angle Camera (NAC) images with resolutions of
~50cm/pixel. The interface takes some getting used to.
- Center on an area of interest either by entering lat & long (note that entering 0 lat & 180 long will give you access to the far side), or select
"recenter & zoom" for the mouse-action.
- When you've got the area you want, click on "Toggle Layers".
- Select "primary mission" under LROC NACs and click "Update Layers" (You may need to scroll down to do this).
- It may take several (~30) seconds, but a bunch of long, thin, vertical, red rectangles will appear overlaying the main image. Each one of these
represents the footprint of a NAC image pair.
- Back at "mouse-action", select "Get Footprint Info".
- On the main image, click on one of the red footprints. Th page will appear to reload.
- Scroll down to the bottom of the page. You will see a thumbnail of the image-pair you selected. If several footprints overlapped, all of the
thumbnails will be displayed.
- Click on either the left or right image of a thumbnail-pair. A new window will pop-up with the NAC image in a zoomable interface.
- The new window will have all of the photo information including resolution and lat/long of each corner.
One of the ideosynchracies of the NAC image database is that some of the have south (instead of north) at the top, some are mirror-image flips, and
some are both. Compare it with your zoom on the main image to make sure your orientation is understood. I think that the guys at Arizona State
University are concentrating more on getting the images out there and will correct the orientions later.