Results 51 to 60 of about 12,904 (207)
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
A Comparison of Modeled and Observed Dayside Bow Shock Locations in 8 Years of MMS Data
Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.Abstract The interplay between Earth's magnetic field and the solar wind provides a natural laboratory to study the physics of shock waves in collisionless plasmas. 3D parameterized shape models of Earth's bow shock boundary quantify how this interaction depends on upstream solar wind parameters.
Wenli Mo +4 more
wiley +1 more source
Statistical Analysis of Storm‐Time O+ Outflows as Observed by the Van Allen Probes
Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.Abstract The outflow of low‐energy O+ ${\mathrm{O}}^{+}$ ions into inner magnetosphere is a key contributor to the warm plasma cloak, and O+ torus, which can also contribute to storm time ring current particularly after local acceleration. Although O+ ${\mathrm{O}}^{+}$ outflows are well observed, their source and transport in the inner magnetosphere ...
Aditi Upadhyay +3 more
wiley +1 more source
TRAPPED‐S, a New Environment Model Framework for Saturn: Focus on Radiation‐Specification Model
Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.Abstract As space agencies contemplate missions to the outer planets' systems and moons, entailing prolonged observations via local orbiters or potential landers, meticulous assessment of the local environment—encompassing radiation and plasma conditions—is paramount for the design of both the platform and scientific payload.
A. Sicard +7 more
wiley +1 more source
Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities
NavigationWith advancements in the broadcast ephemeris accuracy of global navigation satellite systems (GNSSs), precise point positioning based on broadcast ephemeris (BE-PPP) is gradually showing promising prospects.
Quanrun Cheng +3 more
doaj +1 more source
La celebración del centenario en Cartagena de Indias : ¿fue excluyente en sus imaginarios populares?
Espacio, Tiempo y Forma. Serie V, Historia Contemporánea, 2010 El Centenario de la Independencia de Cartagena (1811-1911) produjo una serie de polémicas históricas y evaluativas sobre dicha efeméride. En la primera parte del trabajo se intenta exponer brevemente los desencuentros entre indígenas y españoles cómo ...
Edgar Gutiérrez S.
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LARRES: A New Deep Learning Based Global Ionosphere Map Prediction Model With Large Receptive Field
Space Weather, Volume 23, Issue 11, November 2025.Abstract Ionospheric delay poses significant challenges for satellite‐based communication and navigation applications. Predicting the global ionosphere variation can help to capture the vertical total electron content (VTEC) in advance, which improves the signal stability of communication and navigation, and supports these space‐related technologies ...
Yonggai Zhuang +7 more
wiley +1 more source
NavigationPlans to establish a satellite network around the Moon to support communication, position, navigation, and timing services are rapidly evolving. Satellites that are part of this system broadcast their ephemeris as finite parameters to lunar users for ...
Marta Cortinovis +2 more
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The Selection of Ground Stations for IGS Products [PDF]
Journal of Astronomy and Space Sciences, 2007 The selection of ground stations is one of the essential process of IGS (International GNSS Service) products. High quality GPS data should be collected from the globally distributed ground stations.
Sung-Wook Jung +5 more
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A GIVE Prediction Method in SBAS Based on GAT‐TCN
Space Weather, Volume 23, Issue 11, November 2025.Abstract A Grid Ionospheric Vertical Error (GIVE) prediction model based on GAT‐TCN is proposed in this paper. The model integrates the Graph Attention Network (GAT) with the Temporal Convolutional Network to enhance prediction accuracy while ensuring the integrity of the Satellite‐Based Augmentation System, thereby improving its availability.
Hao Zhang +8 more
wiley +1 more source