Callisto is a 50 y.o. terran colony built barely outside of the 100D line from Jupiter. Its mainstay economy is fast refueling of traffic going through Terra but not heading to the mainworld. An auxiliary economy based on the harvest of rare metal at the bottom of its subsurface ocean.
Physical: Diameter: 2,400Km (0.4 Earth); Gravity: 0.127G; Type: Frozen(Ice); Temperature: 134K (Frozen); Atmosphere: Trace; Other: Tidal locked;
Commercial: WTN: 3.0; Gravity: 0.127G; Code: Ni, Na, Ex; Starport: Class II 1 downport, 1 refueling orbital station;
Population: 44K; Environment: Terrain: underground (ice); Hygiene: +1; Culture: Language: Terra(Middle-East); Language: Anglic, Arabic; Literacy: Normal; TL: 9; Wealth: Average; Status: 0-3; Politics: Government: Corporate Administration; CR: 3; Military: --; DB: +4;
Shatah-1: Main colony (35K). Located 85Km under the surface. Home of civil administration. Homogeneously muslim. Local diet made of imported goods and locally grown autotrophic biomass from the depth of the subsurface ocean.
Shatah-2: Lowport (8K). Located 100m under the surface. Starport operations, scrapyards, and limited engineering capacity. Magrail elevator to Shatah-1 and Gaussian Orbital canon for freight.
Shatah-3: Corporate Mining Venture (1.5K). Run by Callisto Prospectorate LLC. Built on the ocean floor. Reachable only via submarines.
Shatah-5: Remote nuclear fusion plant powering the entire planet. Location undisclosed.
Shatah was founded by Saudi interest and populated with middle-eastern colonists. The moon is covered by 100km of ice (Water, carbon dioxide, volatile compounds). The moon is under regular bombardment by meteorites. As a result, the installations are all carved under at least 100m of the moon's crust. The bulk of the colony is, however, located near the ceiling of the subsurface ocean.
The main economic activity is the fast-refueling service allowing transient traffic to be intercepted out of the 100D line of Jupiter. The interceptors are refueling drones propelled from Callisto using gaussian accelerators.