Results 41 to 50 of about 598,953 (306)
Precise Orbit Determination of GPS-36 Satellite Using Satellite Laser Ranging [PDF]
Journal of Astronomy and Space Sciences, 2002 Satellite laser ranging is a technique for precisely measuring the range between a laser station and a satellite that is equipped with retro-reflectors. SLR technique was first used for Beacon-B satellite in 1964 with the ranging accuracy of meter level.
Hyung-Chul Lim +4 more
doaj +1 more source
Remote Sensing, 2021 Precise knowledge of the phase center location of the global navigation satellite system (GNSS) antenna is a prerequisite for precise orbit determination (POD) of the low Earth orbit (LEO) satellite.
Biao Jin +4 more
semanticscholar +1 more source
Precision Assessment of Near Real Time Precise Orbit Determination for Low Earth Orbiter [PDF]
Journal of Astronomy and Space Sciences, 2011 The precise orbit determination (POD) of low earth orbiter (LEO) has complied with its required positioning accuracy by the double-differencing of observations between International GNSS Service (IGS) and LEO to eliminate the common clock error of the ...
Jong-Yeoun Choi, Sang-Jeong Lee
doaj +1 more source
Remote Sensing, 2021 The TH-2 satellite system, including the TH-2A and TH-2B, is the first distributed interferometric synthetic aperture radar (InSAR) satellite system in China.
Houzhe Zhang +6 more
semanticscholar +1 more source
Remote Sensing, 2019 In order to provide better service for the Asia-Pacific region, the BeiDou navigation satellite system (BDS) is designed as a constellation containing medium earth orbit (MEO), geostationary earth orbit (GEO), and inclined geosynchronous orbit (IGSO ...
Zhiwei Qin +7 more
doaj +1 more source
Mathematical Modelling and a Numerical Solution for High Precision Satellite Ephemeris Determination [PDF]
arXiv, 2023 In this paper, we develop a high-precision satellite orbit determination model for satellites orbiting the Earth. Solving this model entails numerically integrating the differential equation of motion governing a two-body system, employing Fehlberg's formulation and the Runge-Kutta class of embedded integrators with adaptive stepsize control.
arxiv
Remote Sensing, 2021 The precise orbit determination (POD) accuracy of the Chinese BeiDou Navigation Satellite System (BDS) is still not comparable to that of the Global Positioning System because of the unfavorable geometry of the BDS and the uneven distribution of BDS ...
Min Li +6 more
doaj +1 more source
Precise orbit determination technique to refine spacecraft mechanical modeling [PDF]
, 2020 The precise orbit determination of interplanetary spacecraft requires an accurate modeling of the center of mass position with respect to the antenna phase center.
Cascioli, Gael, Genova, Antonio
core +1 more source
Precise orbital elements, masses and parallax of the spectroscopic-interferometric binary HD 26441 [PDF]
, 2017 The orbit of the visual-speckle binary A 2801 (HD 26441) was calculated independently of the previously published double-lined spectroscopic solution, obtaining similar values for the common orbital elements. In this way, it has been possible to provide a consistent 3D orbit and precise values for both the orbital parallax and the individual masses of ...
arxiv +1 more source
Locating the orbits delineated by tidal streams [PDF]
Mon.Not.Roy.Astron.Soc.400:548-560,2009, 2009 We describe a technique that finds orbits through the Galaxy that are consistent with measurements of a tidal stream, taking into account the extent that tidal streams do not precisely delineate orbits. We show that if accurate line-of-sight velocities are measured along a well defined stream, the technique recovers the underlying orbit through the ...
arxiv +1 more source