Results 101 to 110 of about 12,722 (205)

Spatial Scale of Ionospheric Equatorial Electrojet Using Longitude Gradient of Magnetic Data from Swarm Satellites

Applied Sciences
The equatorial electrojet (EEJ) is an eastward electric current system in the ionosphere located along the dip equator. Investigating the small-scale spatial gradients of the EEJ is essential to elucidate its fine structure and associated controlling ...
Shuang Liu, Jiaming Ou
doaj   +1 more source

Ionospheric Plasma IRregularities - IPIR - Data Product Based on Data From the Swarm Satellites. [PDF]

J Geophys Res Space Phys, 2022
Jin Y, Kotova D, Xiong C, Brask SM, Clausen LBN, Kervalishvili G, Stolle C, Miloch WJ.   +7 more
europepmc   +1 more source

Low-cost, multi-agent systems for planetary surface exploration [PDF]

, 2012
The use of off-the-shelf consumer electronics combined with top-down design methodologies have made small and inexpensive satellites, such as CubeSats, emerge as viable, low-cost and attractive space-based platforms that enable a range of new and ...
Bennet, Derek James, Dobie, Gordon, Jamieson, Jonathan, Macdonald, Malcolm, Punzo, Giuliano   +4 more
core  

Swarm Investigation of Ultra-Low-Frequency (ULF) Pulsation and Plasma Irregularity Signatures Potentially Associated with Geophysical Activity

Remote Sensing
Launched on 22 November 2013, Swarm is the fourth in a series of pioneering Earth Explorer missions and also the European Space Agency’s (ESA’s) first constellation to advance our understanding of the Earth’s magnetic field and the near-Earth ...
Georgios Balasis, Angelo De Santis, Constantinos Papadimitriou, Adamantia Zoe Boutsi, Gianfranco Cianchini, Omiros Giannakis, Stelios M. Potirakis, Mioara Mandea   +7 more
doaj   +1 more source

Precise Orbit Solution for Swarm Using Space-Borne GPS Data and Optimized Pseudo-Stochastic Pulses

Sensors, 2017
Swarm is a European Space Agency (ESA) project that was launched on 22 November 2013, which consists of three Swarm satellites. Swarm precise orbits are essential to the success of the above project.
Bingbing Zhang, Zhengtao Wang, Lv Zhou, Jiandi Feng, Yaodong Qiu, Fupeng Li   +5 more
doaj   +1 more source

Satellite Control System Tuned by Particle Swarm Optimization

, 2020
This paper aims to control of satellite position using the two-phase Hybrid Stepping Motor. it's used to receive satellite signal and must accurately track the satellite as it moves across the sky. This system applies the traditional Proportional Integral Derivative (PID) control, the fuzzy PID control methods Fuzzy Logic Control (FLC) and Fractional ...
Al-Yasiri, Mawj, S. Saad, Mohamed, Moustafa Hassan, Mohamed A.   +2 more
openaire   +1 more source

Designs of multi-spacecraft swarms for the deflection of apophis by solar sublimation [PDF]

, 2009
This paper presents two conceptual designs of multi-spacecraft swarms used for deflecting Apophis. Each spacecraft is equipped with a solar concentrator assembly, which focuses the solar light, and a beaming system that projects a beam of light onto the ...
Maddock, Christie, McInnes, C.R., Radice, Gianmarco, Summerer, Leopold, Vasile, M.   +4 more
core  

Developing Experimental Models for NASA Missions with ASSL

, 2010
NASA's new age of space exploration augurs great promise for deep space exploration missions whereby spacecraft should be independent, autonomous, and smart.
Hinchey, Mike, Vassev, Emil
core   +2 more sources

Latitudinal four-peak structure of the nighttime F region ionosphere: Possible contribution of the neutral wind

地球与行星物理论评
In this study, we provide a detailed analysis of the latitudinal four-peak structure of the F region electron density observed by the Swarm B satellite during the night of January 31, 2017.
Chao Xiong, Xinyi Rang, Yuyang Huang, Guoying Jiang, Kun Hu, Weihua Luo   +5 more
doaj   +1 more source

The Formation and Dynamics of Super-Earth Planets

, 2013
Super-Earths, objects slightly larger than Earth and slightly smaller than Uranus, have found a special place in exoplanetary science. As a new class of planetary bodies, these objects have challenged models of planet formation at both ends of the ...
Haghighipour, Nader
core   +1 more source