Results 121 to 130 of about 26,872 (287)
Applying Energy Dissipation Rate GNSS Accelerometry to a Non‐Circular Orbiting Satellite
Earth and Space Science, Volume 12, Issue 4, April 2025.Abstract The increase in the number of objects in Low‐Earth Orbit has heightened the demand for high‐accuracy orbital prediction models driven by dependable measurements of thermospheric mass density (TMD). Given the added cost and complexity burden of equipping satellites with high precision accelerometers, recent attention has focused on alternative ...
D. J. Fitzpatrick +3 more
wiley +1 more source
Decoupled and coupled moons’ ephemerides estimation strategies application to the JUICE mission [PDF]
Planetary and Space Science, 2022 M. Fayolle +4 more
semanticscholar +1 more source
Celestial ephemerides in an expanding universe [PDF]
Physical Review D, 2012 Post-Newtonian theory was instrumental in conducting the critical experimental tests of general relativity and in building the astronomical ephemerides of celestial bodies in the solar system with an unparalleled precision. The cornerstone of the theory is the postulate that the solar system is gravitationally isolated from the rest of the universe and
openaire +2 more sources
Journal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.Abstract We compare observations of hydrogen (H) and protons associated with Martian proton aurora activity, co‐evaluating remote sensing and in situ measurements during these events. Following the currently understood relationship between penetrating protons and H energetic neutral atoms (ENAs) in the formation of proton aurora, we observe an expected
Andréa C. G. Hughes +14 more
wiley +1 more source
Odessa Astronomical Publications, 2016 Formulae for determination of planetocentric positions of the basic photometrical circles on the surface of the spherical planet (the equator of intensity, an orthographic limb and orthographic terminator) from the elements of these circles specified to ...
V. V. Mikhalchuk
doaj +1 more source
A semi-analytical model of the Galilean satellites' dynamics
, 2018 The Galilean satellites' dynamics has been studied extensively during the last century. In the past it was common to use analytical expansions in order to get simple models to integrate, but with the new generation computers it became prevalent the ...
Lari, Giacomo
core +1 more source
Integrated software package STAMP for minor planets [PDF]
The integrated software package STAMP allowed for rapid and exact reproduction of the tables of the year-book 'Ephemerides of Minor Planets.' Additionally, STAMP solved the typical problems connected with the use of the year-book. STAMP is described. The
Kochetova, O. M., Shor, Viktor A.
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Pulse Profile Change Possibly Associated with a Glitch in an Anomalous X-Ray Pulsar 4U 0142+61
, 2004 We report a glitch-like pulse frequency deviation from the simple spin-down law in an anomalous X-ray pulsar (AXP) 4U 0142+61 detected by ASCA observations. We also found a significant pulse profile change after the putative glitch. The glitch parameters
Hellier C. +4 more
core +1 more source
4 Ephemerides (Ephemerides) [PDF]
Transactions of the International Astronomical Union, 1991 This report covers the period from 1 July 1987 to 30 June 1990. The ephemerides that have been published during this period have made use of the system of astronomical constants adopted at the 16th General Assembly of the IAU in Grenoble. At the same time that the use of the FK5 system on the J2000 epoch is increasing and catalogues are becoming ...
openaire +1 more source
The Astrophysical Journal Supplement SeriesMany hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang +5 more
doaj +1 more source