Results 1 to 10 of about 201,777 (208)

Precise Orbit Determination of MEX Flyby Phobos Using Simulated Radiometric and Image Data [PDF]

Sensors, 2021
A navigation camera or topography camera is a standard payload for deep space missions and the image data are normally used for auto-navigation. In this work, we study the potential contribution of image data in precise orbit determination for deep space
Xinbo Zhu, Lu Liu, Suyan Liu, Pan Xie, Wutong Gao, Jianguo Yan   +5 more
doaj   +2 more sources

Unidirectional Orbit Determination for Extended Users Based on Navigation Ka-Band Inter-Satellite Links [PDF]

Sensors
Traditional spacecraft orbit determination primarily employs two methodologies: ground station/survey ship-based orbit determination and global navigation satellite system (GNSS)-based orbit determination.
Yong Shangguan, Hua Zhang, Yong Yu, Wenjin Wang, Bin Liu, Haihan Li, Rong Ma   +6 more
doaj   +2 more sources

Real-Time Orbit Determination of Micro–Nano Satellite Using Robust Adaptive Filtering [PDF]

Sensors
Low-performing GPS receivers, often used in challenging scenarios such as attitude maneuver and attitude rotation, are frequently encountered for micro–nano satellites.
Jing Chen, Xiaojun Jin, Cong Hou, Likai Zhu, Zhaobin Xu, Zhonghe Jin   +5 more
doaj   +2 more sources

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

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 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

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

Analysis of the Impact of Atmospheric Models on the Orbit Prediction of Space Debris

Sensors, 2023
Atmospheric drag is an important influencing factor in precise orbit determination and the prediction of low-orbit space debris. It has received widespread attention.
Yigao Ding, Zhenwei Li, Chengzhi Liu, Zhe Kang, Mingguo Sun, Jiannan Sun, Long Chen   +6 more
doaj   +1 more source

Estimation of a General Along-Track Acceleration in the KOMPSAT-1 Orbit [PDF]

Journal of Astronomy and Space Sciences, 2002
General along-track acceleration was estimated in the KOMPSAT-1 orbit determination process. Several sets of the atmospheric drag and solar radiation pressure coefficients were also derived with the different spacecraft area.
Byoung-Sun Lee, Jeong-Sook Lee, Jae-Hoon Kim   +2 more
doaj   +1 more source

Conjoint Analysis of GPS Based Orbit Determination among Traditional Methods

Sakarya University Journal of Computer and Information Sciences, 2023
Satellite orbits are subject to change due to external forces. Various data gathering and processing methods exist to determine a perturbed orbit. The operators need to estimate satellite orbits for safe orbital operations.
Cevat Özarpa, İbrahim Öz
doaj   +1 more source