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PyFITS provides an interface to FITS formatted files under the Python scripting language. It is useful for interactive data analysis and for writing analysis scripts in Python using FITS files as either input or output. PyFITS is a development project of the Science Software Branch at the Space Telescope Science Institute.

PyEphem provides scientific-grade astronomical computations for the Python programming language. Given a date and location on the Earth's surface, it can compute the positions of the Sun and Moon, of the planets and their moons, and of any asteroids, comets, or earth satellites whose orbital elements the user can provide. Additional functions are provided to compute the angular separation between two objects in the sky, to determine the constellation in which an object lies, and to find the times at which an object rises, transits, and sets on a particular day.

Sunclock is an X11 application that displays a map of the Earth and shows the illuminated portion of the globe. In addition to providing local time for the default timezone, it also displays GMT time, legal and solar time of major cities, their latitude and longitude, the mutual distances of arbitrary locations on Earth, the position at zenith of Sun and Moon. Sunclock can display meridians, parallels, tropics and arctic circles. It has builtin functions that accelerate the speed of time and show the evolution of seasons. Sunclock can be internationalized for various western languages. It is possible to customize the app-default file and enter additional city entries. Sunclock can commute between two states, the "clock window" and the "map window". The clock window displays a small map of the Earth and therefore occupies little space on the screen, while the "map window" displays a large map and offers more advanced functions. The Sunclock package includes a resizable and zoomable vector map. External Earth maps can also be loaded.

"WCSLIB is a C library, supplied with a full set of Fortran wrappers, that implements the "World Coordinate System" (WCS) convention in FITS (Flexible Image Transport System). It also includes a PGPLOT-based routine, PGSBOX, for drawing general curvilinear coordinate graticules and a number of utility programs." - from README file.

ascd is a CD player that can be "docked" on the Afterstep Wharf or the Window Maker dock.

Compact disc control utility

gsm is a conversion package and library for converting u-law audio to gsm encoding (which is much more efficient) and back again.

dekagen is a front-end to several tools for the ripping, converting, and naming of MP3 and Ogg-Vorbis files. It automates the whole process of ripping data from music compact discs (CD), the naming of the files, their converting into MP3 or Ogg-Vorbis format and the labelling of the MP3 files with an ID3 tag. dekagen uses dialog for a user interface that is intended to be "intuitive". Music data is read from CDs using cdda2wav, cdparanoia, dagrab, or tosha, and stored on your hard disk in wav-format. Note that this will have an excessive need of disk space. After this, the wav-data is converted into MP3 format using 8hz-mp3, bladeenc, l3enc, lame, mp3enc, or notlame, or into Ogg-Vorbis format using oggenc. This will take a while. To avoid manual naming and tagging for all the files, cda is used for CDDB lookups. To label the MP3 files with ID3 tags, id3ed, id3tag, id3tool, or mp3info, or the built-in capabilities of some encoders (lame, notlame) are used. Ogg-Vorbis files can be labelled with oggenc.

Open-Source Software Implementation of a DRM (Digital Radio Mondiale) Receiver under the GNU General Public License (GPL)

Festival documentation in texinfo, HTML, DVI and PostScript formats