GFZ TerraSAR-X Rapid Science Orbits (version 2)

This dataset provides Rapid Science Orbits (RSO) from the Low Earth Orbiter (LEO) satellite TerraSAR-X. It is part of the compilation of GFZ RSO products for various LEO missions and the appropriate GNSS constellation in sp3 format. The individual solutions for each satellite mission are published with individual DOI as part of the compilation (Schreiner et al., 2022). • The TerraSAR-X RSO cover the period - from 2007 264 to up-to-date The LEO RSOs in version 2 are generated based on the 30-hour GPS RSOs in two pieces for the actual day with arc lengths of 14 hours and overlaps of 2 hours. One starting at 22:00 and ending at 12:00, one starting at 10:00 and ending at 24:00. Due to the extended length of the constellation, there is no need to concatenate several constellations for day-overlapping arcs. The accuracy of the LEO RSOs is at the level of 1-2 cm in terms of SLR validation. Each solution in version 2 is given in the Conventional Terrestrial Reference System (CTS) based on the IERS 2010 conventions and related to the ITRF-2014 reference frame. The exact time covered by an arc is defined in the header of the files and indicated as well as in the filename.

搜集汇总

背景与挑战

背景概述

该数据集提供TerraSAR-X卫星的快速科学轨道数据（版本2），覆盖时间从2007年第264天至今。其轨道生成基于30小时GPS快速科学轨道分成两段，每段弧长14小时并有2小时重叠，精度在SLR验证下达到1-2厘米，使用基于IERS 2010惯例的CTS系统和ITRF-2014参考框架。