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
core +2 more sources
Combining astrometry and JUICE-Europa Clipper radio science to improve the ephemerides of the Galilean moons [PDF]
Astronomy & Astrophysics, 2023 The upcoming JUICE and Europa Clipper missions to Jupiter's Galilean satellites will provide radio science tracking measurements of both spacecraft. Such data are expected to significantly help estimating the moons' ephemerides and related dynamical ...
M. Fayolle +5 more
semanticscholar +1 more source
Precision Ephemerides for Gravitational-wave Searches – IV: Corrected and refined ephemeris for Scorpius X-1 [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Low-mass X-ray binaries have long been theorised as potential sources of continuous gravitational-wave radiation, yet there is no observational evidence from recent LIGO/Virgo observing runs.
T. Killestein +4 more
semanticscholar +1 more source
ExoClock Project. II. A Large-scale Integrated Study with 180 Updated Exoplanet Ephemerides [PDF]
Astrophysical Journal Supplement Series, 2021 The ExoClock project is an inclusive, integrated, and interactive platform that was developed to monitor the ephemerides of the Ariel targets to increase the mission efficiency.
A. Kokori +104 more
semanticscholar +1 more source
Centaurus X-3 orbital ephemerides using Insight-HXMT, RXTE, Swift/BAT, and NuSTAR observations
Astronomy & Astrophysics, 2023 Centaurus X-3 (Cen X-3) is the first X-ray pulsar discovered and has been studied for decades by multiple facilities, allowing for accurate measurements of the decay rate of the orbital period of the binary system.
M. Klawin +7 more
semanticscholar +1 more source
The JPL Planetary and Lunar Ephemerides DE440 and DE441
, 2021 The planetary and lunar ephemerides called DE440 and DE441 have been generated by fitting numerically integrated orbits to ground-based and space-based observations. Compared to the previous general-purpose ephemerides DE430, seven years of new data have
R. Park +3 more
semanticscholar +1 more source
CHEOPS observations of the HD 108236 planetary system: a fifth planet, improved ephemerides, and planetary radii [PDF]
Astronomy & Astrophysics, 2021 Context. The detection of a super-Earth and three mini-Neptunes transiting the bright (V = 9.2 mag) star HD 108236 (also known as TOI-1233) was recently reported on the basis of TESS and ground-based light curves. Aims.
A. Bonfanti +108 more
semanticscholar +1 more source
Precise disciplining of a chip-scale atomic clock using PPP with broadcast ephemerides
GPS Solutions, 2023 Over the last decade, chip-scale atomic clocks (CSACs) have emerged as stable time and frequency references with small size, weight, and power (SWaP).
F. Kunzi, O. Montenbruck
semanticscholar +1 more source
Commission 4: Ephemerides: (Ephemerides) [PDF]
Transactions of the International Astronomical Union, 1997 During 1994–1996 Ephemerides have been intensively developed for all celestial bodies in the solar system in both analytical and numerical ways, except an analytical ephemeris of Pluto. Because of the shortage of allotted pages this report covers only the reviews of planetary ephemerides.
He Miao-Fu +12 more
openaire +2 more sources
Astronomical phenomena in Dresden codex [PDF]
Serbian Astronomical Journal, 2013 The relationship between Maya and our calendar is expressed by a coefficient known as ‘correlation’ which is a number of days that we have to add to the Mayan Long Count date to get Julian Date used in astronomy.
Böhm V. +4 more
doaj +1 more source