Showing 41 - 60 results of 118 for search '"ephemerides"', query time: 0.07s Refine Results
  1. 41
  2. 42

    Efficiency of precise point positioning in Peninsular Malaysia from an ephemeris perspective. by Lee, Hong Sheng, Wan Aris, Wan Anom, Musa, Tajul Ariffin, Ahmad, Anuar

    Published 2023
    “…The accuracy of PPP is dependent on the ephemerides used during processing. This study aims to investigate the effect of ephemerides on the accuracy of PPP in Peninsular Malaysia. …”
    Conference or Workshop Item
  3. 43

    La propriété intellectuelle des calculs astronomiques en question by Guy Boistel

    Published 2018-02-01
    “…By investigating the use of the ephemerides in the ports, the Bureau des longitudes discovered that another Ephemerides Maritimes (nautical ephemeris) had also been published for almost five decades. …”
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    Article
  4. 44

    Satellite Availability and Service Performance Evaluation for Next-Generation GNSS, RNSS and LEO Augmentation Constellation by Haomeng Cui, Shoujian Zhang

    Published 2021-09-01
    “…Without requiring real ephemerides, we describe a method to estimate satellite visibility and DOP. …”
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    Article
  5. 45

    S/W Development of High Precesion EPHEMERIS(I) by Young-Shoek Ahn, Jong-Seob Shin, Pil-Ho Park, Eun-Kwang Park, Jeong-Sook Lee

    Published 1993-12-01
    “…We developed the S/W which calculate the Planetary and the Moon ephemerides. The ephemeris of the Solar system objects was obtained from a simultaneous numerical integration of the equations of motion for the nine planets and the Moon. …”
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    Article
  6. 46

    A 16-parameter GEO Broadcast Ephemeris by Zhongkai ZHANG,Lan DU,Li LIU,Feng HE,Yu LU,Peiyuan ZHOU

    Published 2018-12-01
    “…Currently, the broadcast ephemerides used in GEOs are same as those of the MEOs and IGSOs in the BeiDou navigation constellation. …”
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    Article
  7. 47

    Fundamentals of Astronomy / by Barbieri, Cesare, 1942-, author 642818

    Published 2021
    “…Concepts of general relativity are explored, such as the advance of Mercury’s perihelion, light deflection and black holes, in addition to the physical properties, orbits, and ephemerides of planets, comets and asteroids with an extension to visual binary stars orbital reconstruction. …”
    text
  8. 48

    The early meteorological network of the Societas Meteorologica Palatina (1781–1792): foundation, organization, and reception by P. Winkler

    Published 2023-08-01
    “…Instruments were provided free of charge; a physically very advanced instruction guaranteed reliable observational results, and the data collected at 3 different hours per day were printed at high cost in the <i>Ephemerides Societatis Meteorologicae Palatinae</i> (denoted <i>Ephemerides</i> hereafter) of Mannheim. …”
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    Article
  9. 49

    Long-term Variations in the Orbital Period of Hot Jupiters from Transit-timing Analysis Using TESS Survey Data by Wenqin Wang, Zixin Zhang, Zhangliang Chen, Yonghao Wang, Cong Yu, Bo Ma

    Published 2024-01-01
    “…The Python code ( PdotQuest , https://github.com/AeoN400/PdotQuest ) used to generate the ephemerides is made available online.…”
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    Article
  10. 50

    TESS Eclipsing Binary Stars. I. Short-cadence Observations of 4584 Eclipsing Binaries in Sectors 1–26 by Vanderburg, Andrew, Seager, Sara

    Published 2022
    “…We discuss selection criteria for eclipsing binary candidates, detection of hitherto unknown eclipsing systems, determination of the ephemerides, the validation and triage process, and the derivation of heuristic estimates for the ephemerides. …”
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    Article
  11. 51

    Extended Geometry and Probability Model for GNSS+ Constellation Performance Evaluation by Lingdong Meng, Jiexian Wang, Junping Chen, Bin Wang, Yize Zhang

    Published 2020-08-01
    “…Different from conventional methods, requiring real or simulated satellite ephemerides, this new model only uses some basic parameters of one satellite constellation. …”
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    Article
  12. 52

    Dynamical Model of Rotation and Orbital Coupling for Deimos by Kai Huang, Lijun Zhang, Yongzhang Yang, Mao Ye, Yuqiang Li

    Published 2024-03-01
    “…This paper introduces a novel dynamical model, building upon the existing dynamical model for Deimos in the current numerical ephemerides, which only encompasses the simple libration effects of Deimos. …”
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    Article
  13. 53

    Testing the Strong Equivalence Principle with spacecraft ranging towards the nearby Lagrangian points by Congedo, G, De Marchi, F

    Published 2016
    “…Neglecting errors in planetary masses and ephemerides, we forecast (USD)\sigma[\eta]=6.4\text{-}2.0\times10^{-4}(USD) (5 yr integration time) via ranging towards $L_1$ in realistic and optimistic scenarios depending on current and future range capabilities and knowledge of the Earth's ephemerides. …”
    Journal article
  14. 54

    Exoplanet characterisation through transit timing variations by Kaye, L

    Published 2023
    “…I additionally find evidence for either periodic timing residuals or non-linear trends in the ephemerides of 24 systems for which variation was not previously detected. …”
    Thesis
  15. 55

    Detection of the irradiated donor in the LMXBs 4U 1636-536 (=V801 Ara) and 4U 1735-444 (=V926 Sco) by Casares, J, Cornelisse, R, Steeghs, D, Charles, P, Hynes, R, O'Brien, K, Strohmayer, T

    Published 2006
    “…Our new ephemerides provide confirmation that light-curve maxima in V801 Ara and likely V926 Sco occur at superior conjunction of the donor star and hence photometric modulation is caused by the visibility of the X-ray heated donor. …”
    Journal article
  16. 56

    Ephemeris and Celestial Navigation. Melville’s Mardi as Astronomical Metaphor by Odile Gannier

    Published 2022-10-01
    “…Melville as a sailor expressed his fascination for astronomy, ephemerides and their creative potential, which is evidenced in the metaphorical setting that structures the whole argument of Mardi ’s confusing world. …”
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    Article
  17. 57

    Real-time precise measurements of ocean surface waves using GNSS variometric approach by Yang Liu, Menghao Li, Yanxiong Liu, Yanfeng Wang, Shumin Jiang, Yabin Wang, Li Tian, Fangli Qiao

    Published 2022-12-01
    “…The proposed novel method can achieve buoy velocities with millimeter-level accuracies using freely available broadcast ephemerides and clocks. In addition, surface wave parameters can be accurately retrieved online in real time at a GNSS variometric sampling rate of 2.5 Hz or above. …”
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    Article
  18. 58

    ALMA SOLAR EPHEMERIS GENERATOR by Ivica Skokić, Roman Brajša

    Published 2019-01-01
    “…An online software tool for the easy preparation of ephemerides of the solar surface features is presented. …”
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    Article
  19. 59

    ACCURACY TESTING OF THE ONLINE FREE GNSS PPP SERVICES, AS A FUNCION OF OBSERVATION DURATION AND THE ELAPSED TIME FROM MEASUREMENT EPOCH TO EPOCH OF MEASUREMENT COMPUTATION by Denis Tabučić, Medžida Mulić, Asim Bilajbegović

    Published 2011-12-01
    “…Use of PPP has become possible since the advent of precise satellite ephemerides and clock corrections from IGS. This work represents a research in attainable accuracy and reliability of the free online GNSS services (APPS, CSRS, GAPS, magicGNSS), carried out in the frame of diploma work at Faculty of Civil Engineering in Sarajevo.…”
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    Article
  20. 60

    Le gouvernement des pauvres et l’encyclopédisme au XVIIIᵉ siècle by Arnault Skornicki

    Published 2023-07-01
    “…The criticism of traditional charity and hospitals is enriched, starting with the Dictionnaire universel of Yverdon, by the theory and social program of the Physiocratic school, particularly developed in the Éphémérides du Citoyen. Through practices of plagiarism and compilation, Francophone encyclopedism proves to be a good observatory of the evolution of the common sense of the ‘enlightened’ elites in the 18th century on the government of the poor, which becomes more expert and specialized without being uniform. …”
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    Article