GPS Time Disruptions on 26-Jan-2016
GPS Time Disruptions on 26-Jan-2016
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2016 年 1 月 26 日 GPS 时间中断
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
J. Tammi
中科院分区：
文献类型：
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作者：
A. Mujunen;Juha Aatrokoski;M. Tornikoski;J. Tammi
阿尔托大学，邮政编码Box 11000，FI-00076 Aalto www.aalto.fi作者Ari Mujunen，Juha Aatrokoski，Merja Torboski，Joni Tammi出版物名称GPS时间中断26-Jan-2016出版商电气工程学院单位Metsahovi射电天文台系列Aalto大学出版物系列科学+技术2/2016研究领域射电天文学，射电工程，空间技术摘要周二，2016年1月26日阿尔托大学Metsahovi射电天文台发现，其四个GPS接收器中有三个在现场（用于监测四台现场氢脉泽原子钟的性能）在它们的“1 pps”中进行了13.0微秒的突然时间跳跃（每秒一个脉冲）时间同步输出。中断持续了大约12个小时，在此期间，不同的全球定位系统接收器在不同时间输出错误的时间信号，使其无法用于微秒级的时间同步。这一事件后来被美国科罗拉多施里弗空军基地第50航天联队的第二太空作战中队承认为错误的时间校正参数上传到GPS卫星。周二，2016年1月26日阿尔托大学Metsahovi射电天文台发现，其四个GPS接收器中有三个在现场（用于监测四个现场氢（H）脉泽原子钟的性能）在它们的“1 pps”（每秒一个脉冲）时间同步输出中执行突然的13.0微秒时间跳跃。中断持续了大约12个小时，在此期间，不同的全球定位系统接收器在不同时间输出错误的时间信号，使其无法用于微秒级的时间同步。这一事件后来被美国科罗拉多施里弗空军基地第50航天联队的第二航天作战中队确认为错误的时间校正参数上传到GPS卫星。
Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Ari Mujunen, Juha Aatrokoski, Merja Tornikoski, Joni Tammi Name of the publication GPS Time Disruptions on 26-Jan-2016 Publisher School of Electrical Engineering Unit Metsahovi Radio Observatory Series Aalto University publication series SCIENCE + TECHNOLOGY 2/2016 Field of research Radio astronomy, radio engineering, space technology Abstract On Tuesday, January 26th 2016 Aalto University Metsahovi Radio Observatory discovered that three out of its four GPS receivers on-site (used for monitoring the performance of four on-site hydrogen (H) maser atomic clocks) performed abrupt 13.0 microsecond time jumps in their "1pps" (one pulse per second) time synchronization outputs. The disruptions lasted for approximately 12 hours during which different GPS receiver units outputted erroneous time signal at different times, preventing their use for microsecond-level time synchronization. The event was later acknowledged by the 2nd Space Operations Squadron at the 50th Space Wing, Schriever Air Force Base, Colorado, USA, as an erroneous time correction parameter upload to GPS satellites.On Tuesday, January 26th 2016 Aalto University Metsahovi Radio Observatory discovered that three out of its four GPS receivers on-site (used for monitoring the performance of four on-site hydrogen (H) maser atomic clocks) performed abrupt 13.0 microsecond time jumps in their "1pps" (one pulse per second) time synchronization outputs. The disruptions lasted for approximately 12 hours during which different GPS receiver units outputted erroneous time signal at different times, preventing their use for microsecond-level time synchronization. The event was later acknowledged by the 2nd Space Operations Squadron at the 50th Space Wing, Schriever Air Force Base, Colorado, USA, as an erroneous time correction parameter upload to GPS satellites.