The story takes place a few years after the events of Star Wars: Episode I – The Phantom Menace.
A battle squadron pursues the two Jedi; it is headed by a weapons designer that has already blueprinted the Death Star.
The introduction of Zonama Sekot and the mysterious Jedi Vergere provided some of the first major links between the pre-Episode IV and post-Episode IV Star Wars expanded universe materials; both figure prominently in The New Jedi Order series.
This may be because Zonama Sekot the rogue planet was really a seed of the original Yuuzhan'Tar, the destroyed homeworld of the Yuuzhan Vong.
Actually the Yuuzhan Vong were in the galaxy since the days of the Galactic Republic, but did not interfere until the New Jedi Order Era.