TY - JOUR

T1 - Charging of Geostationary Satellite Electro-L2 in the Earth Shadow

AU - Novikov, Lev S.

AU - Makletsov, Andrey A.

AU - Sinolits, Vadim V.

AU - Chirskaya, Natalia P.

AU - Nikolsky, Evgeny V.

AU - Pakostina, Anna V.

AU - Bakutov, Anton E.

AU - Prokopiev, Yury M.

AU - Shilov, Alexander M.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Magnetosphere plasma electron and proton fluxes in the energy range 0.04-11.3 keV were measured using electrostatic spectrometers established onboard the geostationary Electro-L2 spacecraft (point of standing 76° EL). Measurements were done in the lit orbit segments and in the Earth shadow during the periods of vernal and autumn equinox in 2016-2017. In terms of the observation data, fluxes, and parameters of the plasma particles for different geomagnetic activity levels and potentials of the spacecraft metal base were determined. The measured values of the negative spacecraft metal base potential achieve 5-10 kV in the Earth shadow. Interpretation of the measurement results was done using the results of the spacecraft charging modeling obtained with the COULOMB-2 program package. Electric field gauges (EFGs) and electrostatic discharge (ESD) gauges were established on the spacecraft surface as well. The electrostatic spectrometers data and the COULOMB-2 results coincide with the EFGs data. ESDs were registered onboard the spacecraft during the spacecraft entrance into the Earth shadow and exit from the shadow.

AB - Magnetosphere plasma electron and proton fluxes in the energy range 0.04-11.3 keV were measured using electrostatic spectrometers established onboard the geostationary Electro-L2 spacecraft (point of standing 76° EL). Measurements were done in the lit orbit segments and in the Earth shadow during the periods of vernal and autumn equinox in 2016-2017. In terms of the observation data, fluxes, and parameters of the plasma particles for different geomagnetic activity levels and potentials of the spacecraft metal base were determined. The measured values of the negative spacecraft metal base potential achieve 5-10 kV in the Earth shadow. Interpretation of the measurement results was done using the results of the spacecraft charging modeling obtained with the COULOMB-2 program package. Electric field gauges (EFGs) and electrostatic discharge (ESD) gauges were established on the spacecraft surface as well. The electrostatic spectrometers data and the COULOMB-2 results coincide with the EFGs data. ESDs were registered onboard the spacecraft during the spacecraft entrance into the Earth shadow and exit from the shadow.

KW - Charging

KW - modeling

KW - space plasma

KW - spacecraft

KW - PLASMA

KW - ENVIRONMENTS

UR - http://www.scopus.com/inward/record.url?scp=85070437609&partnerID=8YFLogxK

U2 - 10.1109/TPS.2019.2917806

DO - 10.1109/TPS.2019.2917806

M3 - Article

AN - SCOPUS:85070437609

VL - 47

SP - 3931

EP - 3936

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

SN - 0093-3813

IS - 8

M1 - 8731751

ER -