Results 81 to 90 of about 3,266 (155)

Wave Model Development in Multi-Ion Plasmas [PDF]

Journal of Astronomy and Space Sciences, 1999
Near-earth space is composed of plasmas which embed a number of plasma waves. Space plasmas consist of electrons and multi-ion that determine local wave propagation characteristics.
Sung-Hee Song, Dong-Hun Lee, Yoo Surn Pyo   +2 more
doaj  

Secular change in the geomagnetic field in West Africa of thirty years : comparison with fourth generation IGRF models [PDF]

, 1987
L'auteur compare les données géomagnétiques recueillies dans huit pays de l'Afrique de l'Ouest avec celles calculées en utilisant le modèle IGRF. Il montre que ce modèle est excellent pour déterminer les variations séculaires et qu'il n'y a pas d ...
Vassal, Jacques
core  

Potential utility of future satellite magnetic field data [PDF]

The requirements for a program of geomagnetic field studies are examined which will satisfy a wide range of user needs in the interim period between now and the time at which data from the Geopotential Research Mission (GRM) becomes available, and the ...

core   +1 more source

PIC Modeling of Ionospheric Plasma Diagnostics by Hemispherical Probes: Study of the LAP-CSES at Magnetic Conjugates

Plasma
We present three dimensional particle-in-cell simulations of current-voltage characteristics of the hemispherical Langmuir probe (LAP), onboard the China Seismo-Electromagnetic Satellite (CSES).
Nadia Imtiaz, Saeed Ur Rehman, Liu Chao, Rui Yan, Richard Marchand   +4 more
doaj   +1 more source

In-flight determination of spacecraft magnetic bias independent of attitude [PDF]

A simple algorithm for the in-flight determination of the magnetic bias of a spacecraft is presented. The algorithm, developed for use during the Hubble Space Telescope mission, determines this bias independently of any attitude estimates and requires no
Davenport, P. B., Rumpl, W. M., Welter, G. L.   +2 more
core   +1 more source

Dependence of Simulations of Upper Atmospheric Microwave Sounding Channels on Magnetic Field Parameters and Zeeman Splitting Absorption Coefficients

Remote Sensing
The upper atmospheric microwave sounding channels data are important for atmospheric data assimilation and retrieval. However, radiative transfer simulation accuracy is constrained by the precise characterization of the Zeeman splitting effect.
Changjiao Dong, Fuzhong Weng, Emma Turner   +2 more
doaj   +1 more source

Initial geomagnetic field model from MAGSAT [PDF]

Magsat data from magnetically quiet days were used to derive a thirteenth degree and order spherical harmonic geomagnetic field model, MGST(3/80). The model utilized both scalar and vector data and fit that data with standard deviations of 8, 52, 55 and ...
Estes, R. H., Fabiano, E. B., Lancaster, E. R., Langel, R. A., Mead, G. D.   +4 more
core   +1 more source

Projects SOLRAD and TIMATION: Space radiation exposure [PDF]

The charged particle fluxes to be encountered by spacecraft in circular orbits with inclinations of 125 and 65 degrees, and altitudes of 13890 and 11111 kilometers, respectively were investigated.
Stassinopoulos, E. G.
core   +1 more source

Correlations between geomagnetic field and global occurrence of cardiovascular diseases: evidence from 204 territories in different latitude. [PDF]

BMC Public Health, 2023
Chai Z, Wang Y, Li YM, Zhao ZG, Chen M.
europepmc   +1 more source

Attitude Determination System for a Cubesat Experiencing Eclipse. [PDF]

Sensors (Basel), 2023
Mmopelwa K, Ramodimo TT, Matsebe O, Basutli B.   +3 more
europepmc   +1 more source