CU Spaceflight Wiki

This page documents some work done on the 'next generation' Monte Carlo landing prediction code hosted at GitHub.

The code may be downloaded using the git tool:

$ git clone git://github.com/rjw57/cusf-landing-prediction.git

After that, the standard make tool can be used.

$ make

The code as presented requires the GLib2 libraries to be installed because they have good, tested, thread-aware random number generators (amongst other things).

This branch contains a script under the pydap/ directory which uses OpeNDAP via PyDAP to fetch the data rather than the old GRIB-based system. This has the following advantages:

• We may directly query the NOAA server for the time ranges each data set covers without downloading the entirety of it.
• We can selectively download portions of the set both temporally as well as in space.
• There are 47 pressure levels rather than the (IIRC) 21 available as GRIB data.

The script itself outputs a slightly different format than the original GRIB grabber which makes the parser a little easier to implement.