@InProceedings{StekelSchEchAntCos:2010:SpWeEf,
author = "Stekel, Tardelli Ronan Coelho and Schuch, Nelson Jorge and Echer,
Ezequiel and Antunes, C{\'a}ssio Espindola and Costa, Lucas
Lopes",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Space weather effects in space missions measured from satellites
and ground-based instruments near the south atlantic magnetic
anomaly center",
booktitle = "Extended Abstracts...",
year = "2010",
organization = "Scientific Committee on Antarctic Research (Scar) Open Science
Conference.",
abstract = "The occurrence of large solarares, coronal mass ejections and high
velocity solar wind represents an adverse space weather conditions
hazardous for manned and unmanned space missions. During the
maximum solar activity, many elements of the natural space
environment can damage space missions. Low energy plasmas charge
spacecraft surfaces and cause arc discharges. High-energy
electrons (>2MeV) penetrate the spacecraft and build high charges
in insulation on coaxial lines and circuit boards. Protons
(>50MeV) and other charged particles disrupt computer memories or
even damage the semiconductors structure. Spacecraft damage also
includes decreased power production by solar arrays, failure of
sensitive electronics, increased background noise in sensors,
until radiation exposure to the crew members. The geomagnetic eld
in uences the particles motions within the Earth's orbital
environment and de ects incoming high-energy particles associated
with cosmic rays. In the South Atlantic Magnetic Anomaly (SAMA)
the Van Allen radiation belt comes closest to the Earth's surface
increasing these kind of space mission damage. When solar activity
is high, ultraviolet radiation from the Sun heats and expands the
Earth's ionosphere, increasing atmospheric drag and orbital decay
rate of spacecraft. This work presents Space Weather phenomena
measurements correlating the EUV and X-ray radiation, the
ionospheric and magnetospheric perturbation and space mission
failures for high-intensity solar events. For this purpose,
analysis were performed for the riometer, to measure the
ionosphere density, and magnetometers, to measure the SAMA
geomagnetic intensity, installed at the Southern Space Observatory
(SSO/CRS/CCR/INPE { MCT), (29:4 oS, 53:8 oW, 480m a.s.l), S~ao
Martinho da Serra, RS, Brazil, near 1 the SAMA center. To identify
and monitor the sudden radiation increase the X-ray data (0.1 to
0.8nm) from GOES Satellites and the EUV data (26.0 to 34.0nm and
0.1 to 50.0nm) from the Solar EUV Monitor (SEM) on the SOHO
spacecraft were correlated. GOES electron ux >2MeV and GOES proton
ux >50MeV were measured as the particle in uences. The work also
reviews space mission failures correlating Satellites and
ground-based instruments dedicated to monitor and predict the
Space Weather phenomena.",
conference-location = "Praga, Portugual",
conference-year = "27th September - 1st October",
language = "en",
targetfile = "IAC2010 Abstract Extented Eduardo Escobar B{\"u}rge.PDF",
urlaccessdate = "16 jun. 2024"
}