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1月26日,芬兰Aalto大学的Mets·hovi天文台探测到一次GPS时间异常,发现GPS系统的计时出现了13.7微秒的误差。后据民用GPS接口委员会给出的解释说,这一问题是由于1990年发射的第二代GPS卫星SVN23于1月25日退役触发的,目前该问题已被解决。但是仍然会影响到全球导航用户数个小时,导航偏差最高达4公里。早在20世纪美国的GPS系统就对外免费开放了民码,所以GPS导航被全球导航用户所熟
On January 26, the Mets Hovi Observatory at Aalto University in Finland detected a GPS time anomaly and found a 13.7 microsecond error in the timing of the GPS system. According to the explanation given by the Commission on Civil GPS Interface, the problem was triggered by the decommissioning of the second-generation GPS satellite SVN23, launched in 1990 on January 25, which has now been resolved. But it will still affect global navigation users for hours, navigation deviation up to 4 km. As early as the twentieth century, the United States GPS system on the external free code, so GPS navigation is the world’s navigation users are familiar