Results 141 to 150 of about 43,513 (282)

The Navstar GPS master control station's Kalman filter experience [PDF]

The Navstar Global Positioning System (GPS) is a highly accurate space based navigation system providing all weather, 24 hour a day service to both military and civilian users.
Scardera, Michael P.
core   +1 more source

Practical Performance Assessment of Water Vapor Monitoring Using BDS PPP-B2b Service

Applied Sciences
BeiDou navigation satellite system (BDS) precise point positioning (PPP)-B2b has significant potential for application in meteorological fields, such as standalone water vapor monitoring in depopulated area without Internet.
Linghao Zhou, Enhong Zhang, Hong Liang, Zuquan Hu, Meifang Qu, Xinxin Li, Yunchang Cao   +6 more
doaj   +1 more source

Ephemeris of the Radiant-Point of the Delta Aquarid Meteor Stream [PDF]

, 1934
R. A. McIntosh
openalex   +1 more source

Development of Simulation Tool for Orbital Motion of Meteoroid Stream Particles [PDF]

Journal of Astronomy and Space Sciences, 2000
This paper presents the preliminary survey and simulation results of the prediction of Leonid stream's orbital motion. Based on the model survey on eject velocity and perturbation of meteoroid particles, a simulation program was developed and applied to ...
Bang-Yeop Kim
doaj  

Ephemeris and hazard assessment for near-Earth asteroid (101955) Bennu based on OSIRIS-REx data

, 2021
D. Farnocchia, S. Chesley, Yu Takahashi, B. Rozitis, D. Vokrouhlický, B. Rush, N. Mastrodemos, B. Kennedy, R. Park, J. Bellerose, D. Lubey, D. Velez, A. Davis, J. Emery, J. Leonard, J. Geeraert, P. Antreasian, D. Lauretta   +17 more
semanticscholar   +1 more source

Study on the Design of Broadcast Ephemeris Parameters for Low Earth Orbit Satellites

Remote Sensing
The integration of low Earth orbit (LEO) satellite constellations into the Global Navigation Satellite System (GNSS) has emerged as a prominent research focus, as LEO satellites can significantly enhance the precision of GNSS positioning, navigation, and
Dongzhu Liu, Xing Su, Xin Xie, Han Zhou, Zhengjian Qu   +4 more
doaj   +1 more source

Proceedings of the Celestial Mechanics Conference: Accuracy of the Solar Ephemeris

, 1958
R. L. Duncombe, G. M. Clemence
openalex   +1 more source

Calculation of a Dynamical Substitute for the Real Earth–Moon System Based on Hamiltonian Analysis

The Astrophysical Journal
The Earth–Moon libration points no longer exhibit the dynamical characteristics of “equilibrium points” due to perturbation effects when applying the ephemeris model. By decoupling the forced motions within the ephemeris model and computing the dynamical
Chenyuan Qiao, Xi Long, Leping Yang, Yanwei Zhu, Weiwei Cai   +4 more
doaj   +1 more source

Ephemeris for Physical Observations of Mars, 1894 [PDF]

, 1894
A. Marth
openalex   +1 more source

Ephemeris of Neptune for Greenwich Mean Midnight [PDF]

Adams
openalex   +1 more source