A collaborative community for planetary sciences.

HiRISE images are huge, frequently 1.5 GB, and they are in JPEG 2000 format, which many image software programs don't (yet) handle. So what do you do if you need to work with just a small area of that image at high resolution? This post explains how to get that subframe.

Although there are many issues with putting Mars data into Google Earth, most notably the fact that the best we can currently do is wrap the Earth's sphere in Mars basemaps. However, we can make Google Earth a remarkable tool for locating Mars Reconnaissance Orbiter (MRO) data by being a little clever.

The steps below outline how to configure Google Earth with Martian basemaps, and then how to plot data from the MRO mission.

Jumping off from this discussion, I'd like to hear more about what ISIS is all about, and whether I should consider using it. I work primarily with Cassini ISS data, and my main issue is that, since I work with rings, I'm interested in a cylindrical coordinate system rather than a spherical one. My other issue is that I'm accustomed to using IDL rather than C++, but I could consider changing if other issues came together.

Hi. Has anyone successfully imported MOC images into GMT using grdraster? I have been working on this for over a week, and I (as well as several others helping me) have had no luck. Some issues:

1. Should the MOC images, processed with ISIS, be map projected or not? Altered with mocaspect?

2. What files are acceptable as input to grdraster? I found online that .bmp, .gif, .jpeg, .jpg, .tif, and .wbmp are raster images. I am only able to get my files into .tif, .raw, or .bmp files (ISIS2 dform and ISIS3 isis2std aren't working properly on the machines I use). I have not managed to get any of these data types into GMT (problems with -I (increment) and/or data type definitions in grdraster.info file).

Not all images are the same. Frequently, to do science you might want to compare two different images at the same resolution, or map them to the same grid, different from the original. To map to lower resolution you should co-add pixels, but to map at a higher resolution you might need to interpolate. This article discusses four interpolations schemes, how to use them, and which might be best for you.

Example of 4 different interpolation styles as applied to mapping from a Cassini/VIMS Titan cube.

Hi. I am looking into doing point photoclinometry for certain regions of Mars. I know how to process MOC images with ISIS, but does anyone know how to get the raw DN values of each pixel? Also, has anyone used SOCET SET to make stereo images?

I want to find a specific MOC image on the PDS http://pds.jpl.nasa.gov/. I do a "Data Search", select Instrument "Mars Oribiter Camera", click "Go!", and get two results. But where do I go from there?

I am using ISIS2 and qview to look at processed MOC cubes. When I try to use the qview measure tool, one end of the measuring line is always trapped in the upper left hand corner. Has anyone else experienced this and/or found a way to fix this?

Not quite sure where to start with data from the Mars Global Surveyor spacecraft? This article contains links to the raw data, and also links to the various software tools that members of the community have created to analyze the data itself.