2019年(nian)4月(yue)20日(ri)22時41分,我(wo)國在(zai)(zai)西昌衛(wei)星(xing)(xing)(xing)(xing)發(fa)(fa)射(she)(she)(she)中心用長征三(san)號乙運載火箭,成功(gong)發(fa)(fa)射(she)(she)(she)第四(si)十四(si)顆(ke)(ke)北(bei)斗(dou)(dou)導航衛(wei)星(xing)(xing)(xing)(xing)。此次(ci)發(fa)(fa)射(she)(she)(she)是(shi)(shi)2019年(nian)度北(bei)斗(dou)(dou)導航衛(wei)星(xing)(xing)(xing)(xing)首次(ci)發(fa)(fa)射(she)(she)(she),拉開今年(nian)北(bei)斗(dou)(dou)高密度組網序幕。 這顆(ke)(ke)衛(wei)星(xing)(xing)(xing)(xing)是(shi)(shi)北(bei)斗(dou)(dou)三(san)號系(xi)統第二十顆(ke)(ke)組網衛(wei)星(xing)(xing)(xing)(xing),也是(shi)(shi)北(bei)斗(dou)(dou)三(san)號系(xi)統首顆(ke)(ke)傾斜(xie)地球同步軌(gui)道衛(wei)星(xing)(xing)(xing)(xing),經(jing)過(guo)一系(xi)列在(zai)(zai)軌(gui)測試后,該(gai)衛(wei)星(xing)(xing)(xing)(xing)將與此前發(fa)(fa)射(she)(she)(she)的(de)18顆(ke)(ke)中圓地球軌(gui)道衛(wei)星(xing)(xing)(xing)(xing)和1...