space corps list of space corps satellite types and functions astronomical - ( astro-sat , also ass-sat ) monitors activity off-planet communications - ( com-sat ) enables on- and off-planet communications navigation - ( nav-sat ) maintains global positioning systems watch man - manned , multipurpose satellite that can control functions of other satellites weather - ( wet-sat ) used for tracking environmental and weather patterns list of watch man satellites watch man satellites and watch men : wm-0667-mel - wm anthony magill , wm steve clancy , planet melantha list of space corp outposts ( outposts sorted by planetary system . )