Results 21 to 30 of about 134,911 (241)
IOP Conference Series: Materials Science and Engineering, 2020 Abstract The atmospheric mapping function is an important model to convert the total tropospheric delay on the slant path of satellite signal into the zenith tropospheric delay. It is important to choose the appropriate mapping function to improve the accuracy of water vapor estimation. Beidou observation data in different seasons from 6
Qiuying Guo, Hou Jianhui, Xuxiang Wu
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Evaluation of BDS-2 and BDS-3 Satellite Atomic Clock Products and Their Effects on Positioning
Remote Sensing, 2021 The BeiDou Navigation Satellite System (BDS) has completed third phase construction and currently provides global services, with a mixed constellation of BDS-2 and BDS-3. The newly launched BDS-3 satellites are equipped with rubidium and passive hydrogen
Shengfeng Gu +5 more
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Precision Analysis of Solar Astrometric Positions from the JPL DE431 Ephemeris
Journal of Physics: Conference Series, 2021 Abstract The DE (Development Ephemeris) series of planetary ephemeris released by NASA’s Jet Propulsion Laboratory (JPL) have been widely used in deep-space navigation, interplanetary exploration, analysis and reduction of high-precision astronomical observations, and calibrations of gravitational theories etc.
Ting Kong +3 more
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Discovery of deep eclipses in the cataclysmic variable ZTF17aaaeefu (2MASS J00594349+6454419) [PDF]
Astrophysics and Space Science (2021) 366:111, 2021 I performed photometric observations of the cataclysmic variable candidate ZTF17aaaeefu and discovered very deep eclipses. The observations were obtained over 8 nights covering 7 months. The eclipse profile is similar to the eclipse profiles observed in other cataclysmic variables.
arxiv +1 more source
Orbit Prediction using Broadcast Ephemeris for GLONASS Satellite Visibility Analysis [PDF]
Journal of Astronomy and Space Sciences, 2009 Even though there are several Global Navigation Satellite Systems under development, only GPS and GLONASS are currently available for satellite positioning.
Hye-In Kim, Kwan-Dong Park
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Remote Sensing, 2022 The augmentation of the Global Navigation Satellite System (GNSS) by Low Earth Orbit (LEO) satellites is proposed as an effective method to improve the precision and shorten the convergence time of Precise Point Positioning (PPP).
Kan Wang +4 more
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The Prediction of Geocentric Corrections during Communication Link Outages in PPP
Sensors, 2020 The International GNSS Service (IGS) real-time service (RTS) provides access to real-time precise products. State-Space Representation (SSR) products are disseminated through the Internet using the Networked Transport of the RTCM (Radio Technical ...
Joanna Janicka +4 more
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Astrometry of mutual approximations between natural satellites. Application to the Galilean moons [PDF]
, 2016 Typically we can deliver astrometric positions of natural satellites with errors in the 50-150 mas range. Apparent distances from mutual phenomena, have much smaller errors, less than 10 mas. However, this method can only be applied during the equinox of
Assafin, M. +5 more
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Sensors, 2020 KOMPSAT-3, a Korean earth observing satellite, provides the panchromatic (PAN) band and four multispectral (MS) bands. They can be fused to obtain a pan-sharpened image of higher resolution in both the spectral and spatial domain, which is more ...
Changno Lee, Jaehong Oh
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Satellite Navigation, 2023 Previous studies have not evaluated the systematic errors implied in the third generation of BeiDou-3 Navigation Satellite System (BDS-3) broadcast ephemeris.
Min Li +4 more
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