Results 71 to 80 of about 41,139 (300)
Sensors, 2016 The Chinese BeiDou navigation satellite system (BDS) aims to provide global positioning service by 2020. The combined use of BDS and Global Positioning System (GPS) is proposed to provide navigation service with more stringent requirements.
Shau-Shiun Jan, An-Lin Tao
doaj +1 more source
Ecosphere, Volume 16, Issue 3, March 2025.Abstract We stand at the threshold of a transformative era in Earth observation, marked by space‐borne visible‐to‐shortwave infrared (VSWIR) imaging spectrometers that promise consistent global observations of ecosystem function, phenology, and inter‐ and intra‐annual change.
K. Dana Chadwick +112 more
wiley +1 more source
Sensors, 2014 More and more Global Navigation Satellite Systems (GNSSs) have been developed and are in operation. Before integrating information on various GNSSs, the differences between the various systems must be studied first. This research focuses on analyzing the
Shau-Shiun Jan, An-Lin Tao
doaj +1 more source
EphemerisSources.jl: Idiomatic Ephemeris Sourcing and Parsing in Julia [PDF]
Journal of Open Source Software, 9(102), 6914 (2024)Students and professionals in astronomy, astrodynamics, astrophysics, and other related fields often download and parse data about objects in our solar system -- ephemeris data -- from two major providers: JPL's publicly-available [Generic SPICE Kernels](https://naif.jpl.nasa.gov/pub/naif/generic_kernels/) and JPL's [Horizons platform](https://ssd.jpl ...
arxiv +1 more source
Broadband Receiver for VLF On‐Orbit Wave‐Particle Interaction Experiments
Journal of Geophysical Research: Space Physics, Volume 130, Issue 3, March 2025.Abstract A broadband, multi‐channel Very Low Frequency (VLF) radio receiver (BBR), developed as a sensitive analog, vector wave receiver for whistler‐mode signals in the VLF range, was successfully flown on the Air Force Demonstration Science Experiment (DSX) Mission to Mid‐Earth Orbit (Johnston et al., 2023, https://doi.org/10.1029/2022JA030771).
I. R. Linscott +12 more
wiley +1 more source
INPOP06: a new planetary ephemeris [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractWe present INPOP06: a new planetary ephemeris.
Fienga, A. +3 more
openaire +7 more sources
TASTE IV. Refining ephemeris and orbital parameters for HAT-P-20b and WASP-1b [PDF]
, 2014 We present four new light curves of transiting exoplanets WASP-1b and HAT-P-20b, observed within the TASTE (The Asiago Search for Transit timing variations of Exoplanets) project.
Bedin, L. R. +7 more
core +1 more source
Spatially Resolved Visible Wavelength Spectroscopy of the Galilean Moons With VLT/MUSE
Journal of Geophysical Research: Planets, Volume 130, Issue 3, March 2025.Abstract We present observations of all four Galilean satellites using spatially resolved visible wavelength (475–935 nm) spectroscopic observations with the ground‐based VLT/MUSE + AOF facility in 2019. A range of features in the observed reflectance spectra were compared to laboratory measured spectra, and mapped to understand the spatial ...
Oliver R. T. King +3 more
wiley +1 more source
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
doaj +1 more source