The New Multi-year Position and Velocity Solution SIR09P01 of the IGS Regional Network Associate Analysis Centre (IGS RNAAC SIR)
The New Multi-year Position and Velocity Solution SIR09P01 of the IGS Regional Network Associate Analysis Centre (IGS RNAAC SIR)
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IGS 区域网络联合分析中心 (IGS RNAAC SIR) 的全新多年位置和速度解决方案 SIR09P01
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发表时间：
2012
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通讯作者：
H. Drewes
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作者：
W. Seemüller;M. Seitz;L. Sánchez;H. Drewes
自1996年6月以来，德国地球物理研究所(DGFI)一直担任IGS SIRGAS区域网络协理分析中心(IGS RNAAC SIR)。每周生成一个松散约束的位置解，其中包括SIRGAS连续运行网络(SIRGAS-CON)的所有可用观测值，并将其发送到IGS数据中心，以整合到IGS多面体中。基于这些周解，DGFI还计算站点位置和速度的多年解，以估计SIRGAS参考系的运动学。这些多年解决方案每年更新一次，包括那些连续运行两年以上的站点。本文介绍了SIRGAS-CON网络的最新多年解的计算。它被确认为SIR09P01，于2009年6月发布，包含SIRGAS分析中心从2000年1月2日(GPS 1,043周)到2009年1月3日(GPS周1,512周)提供的所有每周解决方案。它参考了2005.0纪元的IGS05框架，并提供了128SIRGAS-CON站的位置和速度。在参考历元位置的精度估计在水平分量优于±0.5 mm，在垂直分量优于±0.9 mm。线速度测量精度约为±0.8 mm/a。
The Deutsches Geodatisches Forschungsinstitut (DGFI) acts as the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR) since June 1996. Each week a loosely constrained position solution including all available observations of the SIRGAS Continuously Operating Network (SIRGAS-CON) is generated and delivered to the IGS Data Centres to be integrated into the IGS polyhedron. Based on these weekly solutions, DGFI also computes multi-annual solutions for station positions and velocities to estimate the kinematics of the SIRGAS reference frame. These multi-annual solutions are updated yearly and include those stations operating more than 2 years continuously. This paper describes the computation of the latest multi-annual solution of the SIRGAS-CON network. Identified as SIR09P01, it was released in June 2009 and contains all the weekly solutions provided by the SIRGAS Analysis Centres from January 2, 2000 (GPS week 1,043) to January 3, 2009 (GPS week 1,512). It refers to the IGS05 frame at the epoch 2005.0 and provides positions and velocities for 128 SIRGAS-CON stations. The accuracy of its positions at the reference epoch is estimated to be better than ±0.5 mm in the horizontal component and ±0.9 mm in the vertical one. The accuracy of the linear velocities is about ±0.8 mm/a.