Jupiter Station Jupiter Station was a Starfleet Research and Development facility in orbit of Jupiter . History . 22nd century . In the 22nd century , Jupiter Station served as a maintenance and repair facility for Starfleet vessels , as well as a supply stop for cargo ships and a training facility for the Military Assault Command Operations . Prior to setting out on its eight - month journey in 2151 , the cargo vessel stopped at Jupiter Station to take on cargo , where the handlers failed to properly balance the load in one of the " Fortunate " s modules . This caused a vibration in the module , which was eventually corrected when the crew redistributed the cargo . ( ) Later that year , in the face of constant attack by an unknown species , Captain Archer decided to reverse course and take back to Jupiter Station , where the armory team could install state - of - the - art phase cannon s , with which " Enterprise " could better defend itself . Feeling a sense of personal pride in the project , however , Commander Charles Tucker and Lieutenant Malcolm Reed took it upon themselves to complete the modifications , constructing and installing two phase cannons in forty - eight hours , whereas it was estimated that it would take two weeks for the armory team to complete the project . ( ) In 2152 , MACO Major J . Hayes and his team developed a specialized training system at Jupiter Station , wherein a trainee would utilize a particle rifle in an attempt to hit as many holographic targets as possible in a ten - second period . The MACOs later utilized this program to help train officers on board " Enterprise " , where they had been assigned to augment the crew in their mission in the Delphic Expanse . ( ) MACO Corporal J . McKenzie did a six - week tour on Jupiter Station , where she gained experience operating in zero gravity conditions when the grav - plating would periodically fail . In 2153 , McKenzie related this story to Captain Archer when justifying her presence on an away mission to a derelict alien vessel where the environmental systems were offline . ( ) " In the year 2154 of an alternate timeline , where half of " Enterprise " s warp coil s were fused in a ramming maneuver , estimated their repair to take three weeks if they were at Jupiter Station , but at least six months out in the Delphic Expanse . " ( ) 24th century . During the mid - 2360s , Tuvok was temporarily assigned to Jupiter Station where he often wrote to Kathryn Janeway . ( ) In the 2370s , the commanding officer of Jupiter Station was a female . ( ) In his last will and testament , Dr . Lewis Zimmerman requested that , after his death , his holographic assistant be allowed to remain active on the station for as long as the station continued to be operational . ( ) Design . Jupiter Station ' s structure as it existed in the 24th century was that of two sets of three saucer section hull s on top of each other , with a series of antennae and sensor s extending from the bottom . Similar to a starship ' s mess hall , the station had a café . In 2373 , that cafe ' s owner decided to leave , and its ownership was offered to Leeta by the station ' s commander ( at the behest of Dr . Zimmerman ) but she refused , deciding to remain on Deep Space 9 . ( ) Holoprogramming Center . By the 2360s , the station was the location of the Jupiter Station Holoprogramming Center , run by Dr . Lewis Zimmerman . ( ) It was on Jupiter Station where Dr . Zimmerman created the Emergency Medical Hologram program . ( ) Zimmerman offered Leeta a job in the café on the station during his visit to Deep Space 9 in 2373 to interview Julian Bashir for the template of Long - term Medical Holographic program . ( ) Appendices . Background information . Jupiter Station was designed by Rick Sternbach .