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Galileo satellite system was paralyzed by ground time service

2019-09-16
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At the 1 point of July 11th, Galileo navigation system service suddenly broke down, and all the ground signals were lost. Until 8, there was no sign of recovery service. It is understood that the interruption of the service is related to the broadcast ephemeris of Galileo navigation system, and the specific reason has not yet been disclosed.

The 22 orbit satellites are not available or are being tested. They can not provide location and navigation services. After nearly 5 days of investigation, GSA (European navigation satellite system) found the problem. The timing facility in Italy made a mistake in timing, leading to the collapse of the Galileo system.

 Galileo satellite.Jpeg

The Galileo positioning system is a satellite positioning system under construction, named after astronomer Galileo. It launched the first test satellite GIOVE-A in December 28, 2005 and launched its first official satellite in 2011. Up to now, 22 satellites have been put into use. In the 2 satellite orbit test, it is expected that 36 satellites will be launched into orbit in 2020 to provide official services. On the ground, the Galileo positioning system is headquartered in Prague, Czech Republic, with two ground control stations, namely Oberfaffenho Finn and Munich near Italy, Germany. According to sources, the Galileo system was paralyzed because the precise timing facility in Italy was malfunctioning and sent the wrong base time to the satellite. At present, GSA has not yet given the repair time.

System paralysis is no doubt an unfortunate thing. Fortunately, the accident occurred in the testing stage, and it will not cause losses to anyone or any enterprise. Just a system named by astronomers in Italy and paralyzed in Italy.

Galileo, one of the four largest navigation systems in the world, has a long way to go. When it formally announced the construction plan in 1999, it maintained close cooperation with China. However, during the period of EU cooperation, the EU made a 180 degree turn, which led to the exclusion of China in the cooperation of the Galileo system.

However, Galileo navigation system was not successful in the construction process. Until August 21, 2011, the first satellite of Galileo was launched, which is far behind the Beidou navigation system after the launch.

According to the plan, the Galileo system will complete the mission of launching 30 satellites in 2020, and will have complete working capacity in 2019.

According to the iGMAS data, after the Galileo navigation service was interrupted, the broadcast ephemeris of the satellite navigation signals had not been updated. This sign indicates that the 24 satellites of the Galileo system may have all collapsed and unable to provide follow-up navigation services, which is just like a blow to the European Union, which has been preparing for a long time.

According to the consistent usage habit of the missile system, the lack of navigation ephemeris itself will not be very influential in the short term, but the navigation ephemeris can not be updated for a long time, which will cause the existing ground navigation facilities to be unable to be used.

Compared with the Beidou navigation system, it has entered the construction stage of the Beidou three system. By the end of October 2020, the Beidou system will provide services from Beidou two and Beidou three. Compared with the most widely used GPS system, the Beidou system is more reliable and has established the idea of dual use of military and civilian from the beginning of construction.

It is worth noting that during the construction process, the Beidou system did not choose the launch of 30 satellites in one step, but constantly groped for the navigation system according to its own rhythm, which made the construction of Beidou navigation more smoothly and smoothly, and there was a large-scale paralysis in the process of use. In this regard, the superiority of the Beidou system is still very obvious. The failure of the Galileo system may also be an opportunity for the Beidou system to promote outward.

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