1999年1-6月世界各国共进行了35次成功的发射,入轨航天器58个。其中俄罗斯13次,发射本国航天器4个;为其他国家共发射20个;美国17次,为本国发射19个,为其他国家发射5个;阿里安空间公司2次,发射各国航天器3个;中国2次,为本国发射2个,为美国发射2个;印度发射1次,为本国发射1个,为其他国家发射2个。 From January to June 1999, 35 successful launches and 58 orbit spacecraft were carried out in all countries in the world. Including 13 from Russia and 4 from the national spacecraft; 20 for other countries; 17 for the United States, 19 for their own country and 5 for other countries; and 2 for the Arian Space Company, which launched three spacecraft of various nationalities ; Two for China, two for their own country, two for the United States; one for India, one for their own country and two for other countries.