Results 31 to 40 of about 142,311 (289)
Improving the Accuracy of the Martian Ephemeris Short-Term Prediction
Advances in Astronomy, 2018 The Chinese Mars exploration mission is planned to be launched in 2020, which includes an orbiter, a lander, and a rover. High precision Martian ephemeris is very important in Mars exploration, especially for the Martian orbit insertion and the Martian ...
Quan Shan +5 more
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A Method to Determine BeiDou GEO/IGSO Orbital Maneuver Time Periods
Sensors, 2019 Because there are different types of BeiDou constellations with participating geostationary orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites, the maneuvering frequency of BeiDou satellites is higher than that of other navigation systems ...
Zhiwei Qin +7 more
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A Deep Space Orbit Determination Software: Overview and Event [PDF]
Journal of Astronomy and Space Sciences, 2017 This paper presents an overview of deep space orbit determination software (DSODS), as well as validation and verification results on its event prediction capabilities.
Youngkwang Kim +3 more
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Fulde-Ferrell pairing instability of a Rashba spin-orbit coupled Fermi gas
, 2013 We theoretically analyze the pairing instability of a three-dimensional ultracold atomic Fermi gas towards a Fulde-Ferrell superfluid, in the presence of Rashba spin-orbit coupling and in-plane Zeeman field. We use the standard Thouless criterion for the
Liu, Xia-Ji
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Satellite Orbit Prediction Using Big Data and Soft Computing Techniques to Avoid Space Collisions
Mathematics, 2021 The number of satellites and debris in space is dangerously increasing through the years. For that reason, it is mandatory to design techniques to approach the position of a given object at a given time.
Cristina Puente +3 more
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, 2015 The prediction of stellar occultations by Transneptunian objects and Centaurs is a difficult challenge that requires accuracy both in the occulted star position as for the object ephemeris.
Assafin, M. +12 more
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Strong Field Gravity and X-Ray Observations of 4U1820-30 [PDF]
, 1999 The behavior of quasi-periodic oscillations (QPOs) at frequencies near 1 kHz in the x-ray emission from the neutron star x-ray binary 4U1820-30 has been interpreted as evidence for the existence of the marginally stable orbit, a key prediction of strong ...
A. P. Smale +14 more
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Analysis and Design of the Automatic Flight Dynamics Operations For Geostationary Satellite Mission [PDF]
Journal of Astronomy and Space Sciences, 2009 Automation of the key flight dynamics operations for the geostationary orbit satellite mission is analyzed and designed. The automation includes satellite orbit determination, orbit prediction, event prediction, and fuel accounting.
Byoung-Sun Lee +4 more
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Aerospace, 2022 Flight dynamics is a topic often overlooked by operators of small satellites without propulsion systems, as two-line elements (TLE) are easily accessible and accurate enough for most ground segment needs.
Clément Jonglez +3 more
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Wave function statistics at the symplectic 2D Anderson transition: bulk properties [PDF]
, 2007 The wavefunction statistics at the Anderson transition in a 2d disordered electron gas with spin-orbit coupling is studied numerically. In addition to highly accurate exponents ($\alpha_0{=}2.172\pm 0.002, \tau_2{=}1.642\pm 0.004$), we report three ...
A. Mildenberger, F. Evers, R. B. Lehoucq
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