Mon Oct 13, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Sun, Shuang, Chai, Hongzhou, Wang, Min, Liu, Changjian, Zhou, Yingdong, Zhang, Qiankun, and Liu, Yang, 2025. POD performance of LEO satellites with Galileo high accuracy service (HAS) of initial service phase. Advances in Space Research, 75(6):4963–4976, doi:10.1016/j.asr.2024.12.062.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025AdSpR..75.4963S,
author = {{Sun}, Shuang and {Chai}, Hongzhou and {Wang}, Min and {Liu}, Changjian and {Zhou}, Yingdong and {Zhang}, Qiankun and {Liu}, Yang},
title = "{POD performance of LEO satellites with Galileo high accuracy service (HAS) of initial service phase}",
journal = {Advances in Space Research},
keywords = {HAS, LEO, POD, GRACE-FO, Sentinel-6A},
year = 2025,
month = mar,
volume = {75},
number = {6},
pages = {4963-4976},
abstract = "{Precise orbit determination (POD) of low earth orbit (LEO) satellites
based on Global Navigation Satellite System (GNSS) relies on
GNSS precise ephemeris. High-precision post-processing ephemeris
have high accuracy, but cannot meet the requirements for real-
time POD. At present, the High Accuracy Service (HAS) of the
Galileo has entered the initial service stage, which broadcasts
the orbit, clock offsets and bias corrections of GPS and Galileo
satellites through the E6b signal of Galileo satellites. The
receiver can obtain the precise ephemeris according to the
corrections and broadcast ephemeris, and the HAS provides a new
solution for LEO POD based on the global availability. In this
paper, the quality of HAS orbit and clock offset are evaluated
first, and the POD capability of the HAS initial service signal
is verified using the GNSS observations of the gravity recovery
and climate experiment follow-on (GRACE-FO) and the Sentinel-6A
satellites with different orbit altitude. Compared to the POD
using broadcast ephemeris, the 3D root mean square error (RMS)
of GRACE-C satellite is reduced by 65.00 \%, and are reduced by
48.78 \%, 62.61 \% and 45.21 \% for Sentinel-6A satellite with
the Galileo-only, GPS-only and GPS + Galileo respectively. The
RMS of the POD residuals in radial, along-track and cross-track
directions of the two satellites using HAS are all in the
centimeter-level compared to their reference orbits.}",
doi = {10.1016/j.asr.2024.12.062},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025AdSpR..75.4963S},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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Mon Oct 13, F. Flechtner