Results 1 to 10 of about 27,663 (237)
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations [PDF]
The Astrophysical Journal Supplement Series, 2023 The ExoClock project has been created to increase the efficiency of the Ariel mission. It will achieve this by continuously monitoring and updating the ephemerides of Ariel candidates, in order to produce a consistent catalog of reliable and precise ...
A. Kokori +216 more
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Testing theories of gravity with planetary ephemerides [PDF]
Living Reviews in Relativity, 2023 We describe here how planetary ephemerides are built in the framework of General Relativity and how they can be used to test alternative theories. We focus on the definition of the reference frame (space and time) in which the planetary ephemeris is ...
Agnès Fienga, Olivier Minazzoli
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IEEE Access, 2023 BDS-3 was formally put into service on July 31, 2020, and now along with BDS-2 provides the positioning, navigation and timing services. In this contribution, different techniques of dual-frequency absolute positioning using the fully serviceable BDS-2 ...
Shengnan Liu, Shaolin Zhu, Jian Zhang
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The K2 and TESS Synergy. I. Updated Ephemerides and Parameters for K2-114, K2-167, K2-237, and K2-261 [PDF]
Astronomical Journal, 2020 Although the Transiting Exoplanet Survey Satellite (TESS) primary mission observed the northern and southern ecliptic hemispheres, generally avoiding the ecliptic, and the Kepler space telescope during the K2 mission could only observe near the ecliptic,
Mma Ikwut-Ukwa +65 more
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Astronomy & AstrophysicsJupiter and its moons form a complex dynamical system that includes several coupling dynamics at different frequencies. In particular, the Laplace resonance is fundamental to maintaining the energy dissipation that sustain Io’s volcanic activity and ...
Andrea Magnanini +7 more
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Calculation of the Uncertainties in the Planetary Precessions with the Recent EPM2017 Ephemerides and their Use in Fundamental Physics and Beyond [PDF]
Astronomical Journal, 2019 I tentatively compile the formal uncertainties in the secular rates of change of the orbital elements $a,~e,~I,~\Omega$ and $\varpi$ of the planets of the solar system from the recently released formal errors in $a$ and the nonsingular elements $h,~k,~p$
Iorio, Lorenzo
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Evolution of INPOP planetary ephemerides and Bepi-Colombo simulations [PDF]
Proceedings of the International Astronomical Union, 2019 We give here a detailed description of the latest INPOP planetary ephemerides INPOP20a. We test the sensitivity of the Sun oblateness determination obtained with INPOP to different models for the Sun core rotation.
A. Fienga +7 more
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Accurate and Rapid Broadcast Ephemerides for Beidou-Maneuvered Satellites
Remote Sensing, 2019 The geostationary earth orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites of the Beidou navigation satellite system are maneuvered frequently. The broadcast ephemeris can be interrupted for several hours after the maneuver.
Jing Qiao +3 more
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Orbital Motions and the Conservation-Law/Preferred-Frame α3 Parameter [PDF]
Galaxies, 2014 We analytically calculate some orbital effects induced by the Lorentz-invariance momentum-conservation parameterized post-Newtonian (PPN) parameter \(\alpha_3\) in a gravitationally bound binary system made of a primary orbited by a test particle.
Lorenzo Iorio
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Decoupled and coupled moons’ ephemerides estimation strategies application to the JUICE mission [PDF]
Planetary and Space Science, 2022 Marie Fayolle +4 more
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