Questions tagged [mars]

Use this tag for questions which are specific to the planet Mars.

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Orthographic Projection of Mars (MOLA) in QGIS - Visually correct results, wrong coordinates

I am trying to reproject the coloured shaded relief map of Mars (MOLA). After many tries, I got an orthographic projection of the scene centred on the pole, however, the coordinates are wrong. I ...
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How can I change the pixel-size from degrees to meters? [duplicate]

I have a Martian DEM whose pixel size is specified in degrees instead of meters. I was trying to convert in Global Mapper but it didn't work. Now I am trying convert in QGIS with projections but it ...
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Pixel size convert from degrees to meters of Martian DEM

I have a Martian DEM whose pixel size is specified in degrees instead of meters. I was trying to convert in Global Mapper but it didn't work. Now I am trying convert in QGIS with projections but it ...
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Re-projecting data to North/South Pole Azimuthal Equidistant view using Mars DEM Data

I recently downloaded both QGIS and this DEM data from Mars: https://astrogeology.usgs.gov/search/map/Mars/Topography/HRSC_MOLA_Blend/Mars_HRSC_MOLA_BlendDEM_Global_200mp_v2 This is a low resolution ...
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3 votes
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Reprojecting Mars image from SimpleCylindrical to Equirectangular projection

The task is to re-project the image of Mars from one projection to another. In particular I want to re-project an image from SimpleCylindrical Mars projection - Projected to Equirectangular MARS ...
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Seeking formula for Distance Calculation on Mars

I have a database of craters on Mars in decimal latitude and longitude. The latitude ranges from about -90 to 90 and the longitude from -180 to 180 which feels right to me. Is there a formula to ...
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711 views

Setting up CRS for Mars images taken by a satellite

I have a PDS image of the Valles Marineris taken by the Mars Orbiter Missions (MOM) Mars Colour Camera (MCC). I have to generate a depth map and I am in the process of creating a 3D model. In the ...
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113 views

How to tile Mars themis raster for Cesium

I am trying to tile the Mars themis raster that has the following crs: PROJCS["SimpleCylindrical Mars", GEOGCS["GCS_Mars", DATUM["D_Mars", ...
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2 answers
328 views

Geodetic transformation with Mars data: 'ographic to 'ocentric latitude

Introduction I am working with a few raster datasets covering the south polar region of Mars. Some use a coordinate system with aerographic latitudes, which are equivalent in concept to geodetic ...
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Create tiles from Mars HiRISE images

I have a problem with creating tiles from from Mars HiRISE images using gdal/gda2tiles. Can't find info regarding this topic, so, maybe someone already faced that issue? Image looks like this Final ...
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Switching Mars DEM elevation values from negative to positive?

I'm using a DEM of Mars I got from UA's HiRISE website, and I want to convert it into an STL for 3D printing using the DEMto3D plugin. However, the raster values are all negative, so I thought I ...
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Creating GeoTIFF from TIFF image?

I have a TIFF file that is 2880x1440 pixels. It is a global map in simple cylindrical projection (i.e., each pixel is a 1/8th degree square): If the uppermost leftmost pixel has coordinates x = 1, ...
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2 votes
1 answer
1k views

Get Mars DEM Data

I'm very very new to QGIS, I'm creating a small GIS project for the planet Mars. It's going along nicely so far, it's easy to find basemaps and the like from open data sources like PIGWAD and MOLA. ...
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Creating Viewsheds on Mars?

I am having a hard time creating viewsheds on Mars. Originally, I thought it was a coordinate system projection error, so I created a custom projected coordinate system for Mars, went to this site, ...
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Converting Mars Global DTM to Spherical Mesh

I am working on a video game that is attempting to provide a semi-realistic model of Mars. My starting point has been to find and use reliable geographic information to create the "model" of Mars. I ...
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4 votes
1 answer
1k views

Making base map from image with known corner coordinates?

I'm trying to make a map in Openlayers using an image of a crater from mars (specifically this image) so I can add markers/lines/etc on it. I know the min/max latitude/longitude for this image, so ...
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Losing resolution using gdalwarp to change projection?

I’m trying to project an image from Mars using gdalwarp, from eqc to polar stereo projection: gdalwarp -overwrite -s_srs "+proj=eqc +lat_ts=0 +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +a=3396190 +b=3376200 +...
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2 answers
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Mars DTM has all negative elevations in QGIS. Can't build STL file for 3D print

I downloaded Mars HiRise DTM .IMG files and they load fine and generate contours fine. When I try to create an STL using DEMto3D to print it on the 3D printer I can't export it because I cannot put ...
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2 votes
0 answers
395 views

Creating mercator projection for Mars planet in QGIS?

I would like to insert a new SRC in QGIS, like a Mercator projection for Mars. I selected personalised projection in "preference" icon. I clicked on add a new SRC: Name: MarsMercator parameters: +...
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3 votes
2 answers
225 views

Changing underlying planet for ArcGIS Online to be Mars

Background: I am a high school teacher with a brand-new ConnectED K-12 account from ESRI for ArcGIS Online and am trying to figure out the very basics to use this for planetary science. I have loaded ...
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5 votes
1 answer
5k views

Where to download Mars DEMs and landcover?

I'm looking on the websites of the Mars Global Surveyor and the NASA sites, but all of the data is in jpeg or img form. Does anyone know where to find useful raster data sets for elevation and land ...
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384 views

change projection in an ascii (x,y,z) file

I am having an ASCII file (lat,long,depth) in the Mars projection. I need this file to be converted into WGS-84 projection. How can I do the conversion for the ASCII files.
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2 votes
2 answers
2k views

How to clip all shapefiles, layers, etc associated with global map of Mars

I'm working on a project where I've found an open source NASA .mxd of shapefiles, layers, metadata, geology, a 30x30 graticule that splits the lat and long into 30 degree square polygons, etc. I only ...
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18 votes
1 answer
566 views

What GIS analysis techniques were used in determining Gale Crater as the landing site for the Curiosity Rover?

What specific GIS analysis was used in determining Gale Crater as the landing site for the Curiosity Rover? I'm assuming factors such as slope, elevation, ruggedness, etc were used as well as ...
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8 votes
1 answer
2k views

ISIS to GDAL to QGIS: Georeferencing Mars Images

I'm trying to use QGIS to view some images from the Mars Reconnaissance Orbiter Context Camera. I use ISIS3 to download the images and convert them to mapped .cub files, following the instructions ...
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