Google Mars HiRISE base images for Opportunity |
Google Mars HiRISE base images for Opportunity |
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#1
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![]() Administrator ![]() ![]() ![]() ![]() Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 ![]() |
Because it has become a forum FAQ, I've created this sticky thread containing information on where to obtain new base images for Opportunity's traverse for Google Mars, and for discussion on creating new ones. I will continue to add links to new base image layers to this first post as they become available.
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() You need to download the new KML file each time in order to follow Opportunity's peregrinations. Google Mars comes with a color base image mosaic created from HRSC imagery. In addition, there is an inset full-resolution HiRISE image covering the area from the landing site at Eagle crater, through Victoria, up to the point between sol 2040 and 2041 (just west of Mackinac) where Opportunity drove off the map. Unfortunately, this Victoria crater HiRISE layer included within Google Mars is not perfectly registered to the HRSC base map. As far as is known, there is nothing to be done about that. Both John Cody's image layers and Eduardo Tesheiner's traverse maps are aligned with the inset HiRISE layer included with Google Mars, NOT to the HRSC base map. In June 2009 SFJCody posted a reduced-resolution mosaic of HiRISE tiles that cover the entire future traverse area including Endeavour's rim. I have made some small modifications to that map and have hosted it in a single file here (17 MB). Download the file, run Google Earth, select the Mars view, and File>Open the KMZ to view it. In September 2009 SFJCody posted another HiRISE base image, this one at full resolution, covering the Western Route and reaching not quite all the way to Santa Maria. Here is a link to the kml file (4 MB). Here is a link to a zipped version if you'd prefer to have it locally (256 MB) and I also wrote a blog entry about it. During the discussion below, in late 2010, I created a small tile that covers just the immediate area around Santa Maria. Here is a link to the kml file covering that region. In February 2011 Eduardo Tesheiner provided another set of base images covering the area from Santa Maria to Endeavour's rim. Here is a link to the kml file. If you would like to work from a local copy, you can download this 75 MB zip file and unzip it to a folder on your drive, then open the file PSP_010341_1775_RED.kml within it. All three base images can be loaded at once using this kml file (the same one that is linked to at the very top of this post). -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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#2
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Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 ![]() |
Mmm, more or less.
I'm providing some of the data I used to create the 8k x 8k tiles you already see on Google Mars and are hosted by TPS. So, if you use them and extrapolate the coordinates to the 16k x 16k tiles you want to create, they should match 100% with the current map. Note that I'm not saying that they are accurate (they aren't); they are only good for creating new maps matching with the current ones. Lat/Long coordinates of PSP_010341 upper left corner: -2.07473360826446, -5.44490800928163 dLat/dLong of a pixel on the original picture: 4.21926255562616E-06 |
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#3
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Junior Member ![]() ![]() Group: Members Posts: 36 Joined: 31-May 10 From: Poland Member No.: 5362 ![]() |
Lat/Long coordinates of PSP_010341 upper left corner: -2.07473360826446, -5.44490800928163 dLat/dLong of a pixel on the original picture: 4.21926255562616E-06 Thanks for the numbers. They were very helpful. It looks I have a perfect match: ![]() http://www.flickr.com/photos/55907406@N08/...683084/sizes/m/ Btw, asking out of curiosity...in LBL we have: MAP_RESOLUTION = 237098.79009322 <PIX/DEG> which gives: 1/237098.79009322=4.21765121452889e-6 but we are using 4.21926255562616e-6 Why is there a difference? Oh and the problem with the brightness among tiles was caused by Google Earth. Somehow GE had problems using png's which I was creating using Image Magick "convert" program. Switching to jpg's resolved that issue. Anyway...FINISHED!!! ![]() ![]() ![]() http://www.flickr.com/photos/55907406@N08/...292143/sizes/m/ http://www.flickr.com/photos/55907406@N08/...842018/sizes/m/ Zipped kml's download link: https://rapidshare.com/files/2039227902/end...ur_west_rim.zip Edit: added another link just in case... http://hotfile.com/dl/118744535/aaffb88/en...st_rim.zip.html The only missing thing is the black area which could be removed. I don't know but maybe I'll do it somewhere in the future. -------------------- Polish space portal covering up-to-date space news: www.kosmonauta.net
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