Results 11 to 20 of about 3,161,815 (352)

Precise orbit determination of LEO satellites: a systematic review

GPS Solutions, 2023
The need for precise orbit determination (POD) has grown significantly due to the increased amount of space-based activities taking place at an accelerating pace.
K. Selvan, Akpojoto Siemuri, F. Prol, P. Välisuo, M. Z. H. Bhuiyan, H. Kuusniemi   +5 more
semanticscholar   +1 more source

Relative Kinematic Orbit Determination for GRACE-FO Satellite by Jointing GPS and LRI

Remote Sensing, 2022
As the first in-orbit formation satellites equipped with a Laser Ranging Interferometer (LRI) instrument, Gravity Recovery and Climate Experiment Follow-on (GRACE-FO) satellites are designed to evaluate the effective ability of the new LRI ranging system
Zhouming Yang, Xin Liu, Jinyun Guo, Hengyang Guo, Guowei Li, Qiaoli Kong, Xiaotao Chang   +6 more
doaj   +1 more source

Precise orbit determination for BDS satellites

Satellite Navigation, 2022
Since the first pair of BeiDou satellites was deployed in 2000, China has made continuous efforts to establish its own independent BeiDou Navigation Satellite System (BDS) to provide the regional radio determination satellite service as well as regional ...
Qile Zhao, Jing Guo, Chen Wang, Yifei Lyu, Xiaolong Xu, Chao Yang, Junqiang Li   +6 more
semanticscholar   +1 more source

Orbit Determination of GPS and Koreasat 2 Satellite Using Angle-Only Data and Requirements for Optical Tracking System [PDF]

Journal of Astronomy and Space Sciences, 2004
Gauss method for the initial orbit determination was tested using angle-only data obtained by orbit propagation using TLE and SGP4/SDP4 orbit propagation model.
Woo-Kyoung Lee, Hyung-Chul Lim, Pil-Ho Park, Jae-Hyuk Youn, Hong-Suh Yim, Hong-Kyu Moon   +5 more
doaj   +1 more source

Improved Initial Orbit Determination Based on the Gooding Method of Low Earth Orbit Space Debris Using Space-Based Observations

Remote Sensing, 2023
Initial orbit determination (IOD), as a basis for initial orbit association and accurate orbit determination (OD), has a crucial role in the process of obtaining space debris orbit information. Among the traditional methods, the Gooding method has better
Yewen Yin, Zhenwei Li, Chengzhi Liu, Zhe Kang, Jiannan Sun, Long Chen   +5 more
doaj   +1 more source

Orbit determination of Sentinel-6A using the Galileo high accuracy service test signal

GPS Solutions, 2022
The High Accuracy Service (HAS) is an upcoming addition to the Galileo service portfolio that offers free correction data for precise point positioning in real-time.
A. Hauschild, O. Montenbruck, P. Steigenberger, I. Martini, I. Fernández‐Hernández   +4 more
semanticscholar   +1 more source

Real-Time LEO Satellite Orbits Based on Batch Least-Squares Orbit Determination with Short-Term Orbit Prediction

Remote Sensing, 2022
The augmentation of the Global Navigation Satellite System (GNSS) by Low Earth Orbit (LEO) satellites is proposed as an effective method to improve the precision and shorten the convergence time of Precise Point Positioning (PPP).
Kan Wang, Jiawei Liu, Hang Su, A. el-Mowafy, Xuhai Yang   +4 more
semanticscholar   +1 more source

Applicable Tracking Data Arcs for NORAD TLE Orbit Determination of the KOMPSAT-1 Satellite Using GPS Navigation Solutions [PDF]

Journal of Astronomy and Space Sciences, 2005
NORAD Two Line Element (TLE) is very useful to simplify the ground station antenna pointing and mission operations. When a satellite operations facility has the capability to determine NORAD type TLE which is independent of NORAD, it is important to ...
Byoung-Sun Lee
doaj   +1 more source

Precise Orbit Determination of LEO Satellites Based on Undifferenced GNSS Observations

Journal of Surveying Engineering, 2022
Precise orbit determination (POD) is the procedure for determining the orbit of a satellite with high accuracy.
A. Allahvirdi-Zadeh, Kan Wang, A. el-Mowafy   +2 more
semanticscholar   +1 more source

Sentinel-6A precise orbit determination using a combined GPS/Galileo receiver

Journal of Geodesy, 2021
The Sentinel-6 (or Jason-CS) altimetry mission provides a long-term extension of the Topex and Jason-1/2/3 missions for ocean surface topography monitoring.
O. Montenbruck, S. Hackel, M. Wermuth, F. Zangerl   +3 more
semanticscholar   +1 more source