Dgrtha is a planet packed with rare minerals. The Public Mining Corporation (PMC) has the beginnings of a mining operation there. Currently there is a team of 2 geologists, 10 soldiers, and 20 laborers who have done the initial scan, mapping, and prep work for the mining.
The "Mojo Risin" mining vessel is traveling to Dgrtha to deliver heavy mining equipment, supplies, 300 laborers and their families, 15 additional soldiers, and 5 additional geologists. The mission is to deliver the supplies, act as a basecamp while mining is going on, to load the minerals and ore, and then transport that back to Apolit, the home planet of the PMC.
The trip to Dgrtha is a three week trip. The "Mojo" must first pass through a stargate and then travel 21 parsecs to reach the planet. Due to the long trip, those with money (the geologists and by proxy the 5 soldiers assigned to them) were put into cryogenic sleep to avoid boredom. The 300 laborers and the 10 soldiers to watch over them were placed into a special section of the ship for lower class passengers (a very special way of saying that their living quarters were to be especially lacking of amenities and they were expected to bring what they could to make the place 'home' during the journey).