Results 31 to 40 of about 41,139 (300)
Systematics of planetary ephemeris reference frames inferred from pulsar timing astrometry [PDF]
A&A 674, A187 (2023), 2023 This study aims to investigate the systematics in planetary ephemeris reference frames through pulsar timing observations. We used the published data sets from several pulsar timing arrays and performed timing analyses for each pulsar using different planetary ephemerides retrieved from the Jet Propulsion Laboratory's Development Ephemeris (DE ...
arxiv +1 more source
An Efficient Fault Detection and Exclusion Method for Ephemeris Monitoring
Remote Sensing, 2023 The ephemeris fault needs to be detected and mitigated in the ground-based augmentation system to provide precision approach for the aircraft. In the current fault detection and exclusion (FDE) method, the double-differenced carrier phase (DDCP ...
Yiping Jiang, Wang Li, Hengwei Zhang
doaj +1 more source
Clio y Asociados, 2017 The commemoration of the ephemeris in the school offers us one of the fundamental spaces in which the senses of the nation are narrated. At present we observe that in the province of Misiones, similar strategies were implemented to build ...
María Itatí Rodríguez
doaj +1 more source
Symposium - International Astronomical Union, 1979 Newcomb's (1898) Tables of Mars with Ross's corrections have been used to compute its ephemeris in national ephemerides. Clemence (1949 and 1961) constructed a more precise theory of Mars and determined preliminary mean elements using a limited number of observations. Laubscher (1971) compared Clemence's theory with about 11000 observations by meridian
Hiroshi Nakai, Hiroshi Kinoshita
openaire +2 more sources
Constraint on the Yukawa suppression of the Newtonian potential from the planetary ephemeris INPOP19a [PDF]
, 2020 We use the latest solution of the ephemeris INPOP (19a) in order to improve our previous constraint on the existence of a Yukawa suppression to the Newtonian potential, generically associated to a graviton's mass.
L. Bernus +6 more
semanticscholar +1 more source
Securing the legacy of TESS through the care and maintenance of TESS planet ephemerides [PDF]
, 2020 Much of the science from the exoplanets detected by the TESS mission relies on precisely predicted transit times that are needed for many follow-up characterization studies.
Barclay, Thomas +18 more
core +2 more sources
A new orbital ephemeris for WASP-128b [PDF]
RNAAS, 4, 23 (2020), 2020 WASP-128 is a relatively bright (V= 12.37) G0-dwarf, known to host a transiting brown dwarf in a short-period orbit (Hod\v{z}i\'c et al. 2018 arXiv:1807.07557 (H18)). Very few such objects are known, which makes WASP-128 a prime target for further observations to better understand giant planet / brown dwarf properties,including formation and migration ...
arxiv +1 more source
Validation of Geostationary Earth Orbit Satellite Ephemeris Generated
Journal of Astronomy and Space Sciences, 2018 This study presents the generation and accuracy assessment of predicted orbital ephemeris based on satellite laser ranging (SLR) for geostationary Earth orbit (GEO) satellites.
Hyungjik Oh +5 more
doaj +1 more source
Highlights of Astronomy, 1995 The location-independent part of TCB–TCG, the difference between the two new time scales adopted by the IAU (1992), was integrated numerically for three JPL planetary/lunar ephemerides; DE102, DE200, and DE245. The differences among these three integrations were mostly explained by the difference in the adopted constants of the ephemerides.
openaire +1 more source
Remote Sensing, 2020 For the global ordinary users, the broadcast ephemeris plays important roles in positioning, navigation and timing (PNT) services. With the construction of a new generation of the BeiDou navigation satellite system (BDS), the development of BDS has ...
G. Jiao +5 more
semanticscholar +1 more source