Space weather effects in space missions measured from satellites and ground-based instruments near the south atlantic magnetic anomaly center
- Paper number
IAC-10.D5.3.4
- Author
Mr. Tardelli Ronan Coelho Stekel, National Institute for Space Research - INPE, Brazil
- Coauthor
Dr. Nelson Jorge Schuch, Southern Regional Space Research Center - CRS/CCR/INPE - MCT in collaboration with the Space Science Laboratory of Santa Maria - LACESM/CT - UFSM, Brazil
- Coauthor
Dr. Ezequiel Echer, National Institute for Space Research - INPE, Brazil
- Coauthor
Mr. Cassio Espindola Antunes, Southern Regional Space Research Center - CRS/CIE/INPE - MCT, Brazil
- Coauthor
Mr. Lucas Lopes Costa, National Institute for Space Research - INPE, Brazil
- Year
2010
- Abstract
The occurrence of large solar flares, 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 field influences the particles motions within the Earth’s orbital environment and deflects 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), ($29.4\,^o$S, $53.8\,^o$W, 480m a.s.l), São Martinho da Serra, RS, Brazil, near 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 flux $>$2MeV and GOES proton flux $>$50MeV were measured as the particle influences. The work also reviews space mission failures correlating Satellites and ground-based instruments dedicated to monitor and predict the Space Weather phenomena.
- Abstract document
- Manuscript document
IAC-10.D5.3.4.pdf (🔒 authorized access only).
To get the manuscript, please contact IAF Secretariat.