Zobrazeno 1 - 10
of 36
pro vyhledávání: '"S. Pireaux"'
Autor:
Nicolas Bergeot, Q. Baire, S. Pireaux, Eric Pottiaux, Pascale Defraigne, Juliette Legrand, Carine Bruyninx
Publikováno v:
GPS Solutions. 15:171-180
Using dual-frequency data from 36 GPS stations from the EUREF Permanent Network (EPN), the influence of the October 30, 2003 Halloween geomagnetic storm on kinematic GPS positioning is investigated. The Halloween storm induced ionospheric disturbance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::158d7409cfd28e4a565de27c6916b4cd
https://doi.org/10.1007/s10291-010-0181-9
https://doi.org/10.1007/s10291-010-0181-9
Publikováno v:
GPS Solutions. 14:267-277
In high-precision geodetic time and frequency transfer, which requires precise modeling of code and carrier phase GPS data, the ionosphere-free combinations P 3 and L 3 of the codes and carrier phases, made on the two GPS frequencies, are used to rem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ace8e96ccc83c075a1beeb832be5c19
https://doi.org/10.1007/s10291-009-0152-1
https://doi.org/10.1007/s10291-009-0152-1
Publikováno v:
The Astrophysical Journal. 703:1791-1796
Based on historical records, the Sun's dimensions are temporally dependent. Until the recent past, varying dimensions were keenly disputed. Recent accurate observations have removed the doubt, whether from direct limb observations or from helioseismo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45749012bb086455588991aa441e4d94
https://doi.org/10.1088/0004-637x/703/2/1791
https://doi.org/10.1088/0004-637x/703/2/1791
Autor:
S. Pireaux, Bertrand Chauvineau
Publikováno v:
Proceedings of the International Astronomical Union. 5:124-129
The LISA mission is an interferometer, formed by three spacecraft, that aims at the detection of gravitational waves in the [10−4, 10−1] Hz frequency band. Present LISA TDI simulators, aimed at validating the novel Time Delay Interferometry metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7b7dfbe64addfbd75f8980dd88d1e00
https://doi.org/10.1017/s1743921309990251
https://doi.org/10.1017/s1743921309990251
Publikováno v:
Astrophysics and Space Science. 284:1159-1194
The perihelion advance of the orbit of Mercury has long been one of the observational cornerstones for testing General Relativity (G.R.). The main goal of this paper is to discuss how, presently, observational and theoretical constraints may challeng
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9101d530bf3d5a8fdafb62d3e7284a7b
https://doi.org/10.1023/a:1023673227013
https://doi.org/10.1023/a:1023673227013
The stability of GPS time and frequency transfer is limited by the fact that GPS signals travel through the ionosphere. In high precision geodetic time transfer (i.e. based on precise modeling of code and carrier phase GPS data), the so-called ionosp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::487da08201c95bed60b5ed1563f47a19
http://arxiv.org/abs/0908.1905
http://arxiv.org/abs/0908.1905
Publikováno v:
2009 IEEE International Frequency Control Symposium Joint with the 22nd European Frequency and Time forum.
In high precision geodetic time transfer (i.e. based on precise modeling of code and carrier phase GPS data), the so-called ionosphere-free combination of the code ( P3 ) and carrier phase (L 3 ) measurements, made on the two GPS frequencies, is used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ead59308fbbdf427bdaf6170f5c15da6
https://doi.org/10.1109/freq.2009.5168155
https://doi.org/10.1109/freq.2009.5168155
A Relativistic Motion Integrator: Numerical accuracy and illustration with BepiColombo and Mars-NEXT
Autor:
Aurélien Hees, S. Pireaux
Today, the motion of spacecraft is still described by the classical Newtonian equations of motion plus some relativistic corrections. This approach might become cumbersome due to the increasing precision required. We use the Relativistic Motion Integ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::026a6c523d94be7260dd39d7d4775d53
Publikováno v:
2007, ⟨10.1016/j.newast.2007.05.003⟩
Due to non-homogeneous mass distribution and non-uniform velocity rate inside the Sun, the solar outer shape is distorted in latitude. In this paper, we analyze the consequences of a temporal change in this figure on the luminosity. To do so, we use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d72f757410a708c6d17bd5f36137631a
https://hal.archives-ouvertes.fr/hal-00414560
https://hal.archives-ouvertes.fr/hal-00414560