Data Menu
The Data Menu contains no features of value for the typical user. However, you want to look at more PDS headers or load your own data files, read on.
From the first three items you can display the PDS headers for the elevation, thermal inertia and albedo NASA data files. This is useful if you want to check on the resolution or version of the data. Other sensor data sets, such as the pyroxene data, did not come with a PDS header. These data sets were only found as a single tif image containing data for the entire planet. All NASA and other data files used by PEP came from publicly available web sites and were free of any copyright notice.
Loading Your Own Data
You can load either your own data or data you downloaded from a NASA or university site. PEP allows you to load in two kinds of data files, either tiled PDS data or global image files.
Global image data files are tif formatted files. They contain no geodetic coordinates and are simply assumed to contain data for the entire planet at a constant resolution. When you load in a global image data file a new data layer is created. Like all other data layers this new layer can be turned on or off, have image processing filters applied to it, and display cross section information.
Tiled PDS data files are files in PDS format that contain data for some geodetic of a planet. The data from these files are put in the Global Imagery layer.
Edit Offsets
If, for some reason, some data set isn't correlating with the others you can use this option to add a latitude and longitude shift to any sensor data layer.