Results 21 to 30 of about 875,218 (283)
Availability Analysis of GNSS Signal in High Orbit [PDF]
Hangkong bingqi, 2021 Global navigation satellite system (GNSS) has the characteristics of strong autonomy, high real-time, high positioning accuracy and low cost, and it has been widely used by ground, low earth orbit (LEO) and medium earth orbit (MEO) users. However, in the
Lu Kewen,Wang Xinlong,Shen Liangliang,Cai Yuanwen,Chen Ding
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Mission Orbit Design of CubeSat Impactor Measuring Lunar Local [PDF]
Journal of Astronomy and Space Sciences, 2017 The current study designs the mission orbit of the lunar CubeSat spacecraft to measure the lunar local magnetic anomaly. To perform this mission, the CubeSat will impact the lunar surface over the Reiner Gamma swirl on the Moon.
Jeong-Ah Lee +5 more
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Orbit propagation in Minkowskian geometry
Celestial Mechanics and Dynamical Astronomy, 2015 A more adequate description of perturbed hyperbolic orbits is found in the geometry underlying Minkowski space-time. Hypercomplex numbers appear naturally when describing vectors, rotations, and metrics in this geometry. The solution to the unperturbed hyperbolic motion is well known in terms of hyperbolic functions and the hyperbolic anomaly.
Roa Vicens, Javier +1 more
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Multi-Spacecraft Tracking and Data Association Based on Uncertainty Propagation
Applied Sciences, 2022 This paper proposed a novel multi-spacecraft tracking and data association method based on the orbit uncertainty propagation. The proposed method makes full use of the dynamic information and thus the data association performance is enhanced.
Xingyu Zhou, Shuo Wang, Tong Qin
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HEOSAT: a mean elements orbit propagator program for highly elliptical orbits [PDF]
CEAS Space Journal, 2017 18 pages, 5 ...
Martin Lara +2 more
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Geostationary Orbit Surveillance Using the Unscented Kalman Filter and the Analytical Orbit Model [PDF]
Journal of Astronomy and Space Sciences, 2011 A strategy for geostationary orbit (or geostationary earth orbit [GEO]) surveillance based on optical angular observations is presented in this study. For the dynamic model, precise analytical orbit model developed by Lee et al.
Kyoung-Min Roh +2 more
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ANALYTIC ORBIT PROPAGATION FOR TRANSITING CIRCUMBINARY PLANETS [PDF]
The Astrophysical Journal, 2015 Accepted for publication in ...
Georgakarakos, Nikolaos, Eggl, Siegfried
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De-Orbit Maneuver Demonstration Results of Micro-Satellite ALE-1 with a Separable Drag Sail
Applied Sciences, 2023 ALE-1, a micro-satellite created for the demonstration of artificial shooting stars, required orbital descent before mission execution due to safety aspects in orbit.
Kohei Takeda +7 more
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Precision Orbit Propagator for Low Earth Orbiters
The Journal of Korea Navigation Institute, 2012 Low Earth orbit satellites with satellite navigation receiver use onboard navigation filters for filtering measurement signals and for orbit prediction under signal loss. Precision satellite dynamic models, core of the navigation filter, are studied and a computation program is developed. Gravity acceleration, precision coordinate transform, third-body
Jeong-Rae Kim +2 more
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Physical Review Accelerators and Beams, 2022 In this paper, we present the effects of linear transverse-longitudinal coupling on beam size at the interaction point (IP) of a collider with a local crab crossing scheme, when time-dependent transverse deflection (crab kicks) and dispersive orbit ...
Derong Xu, Yun Luo, Yue Hao
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