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TitleTechnical guidelines for reduction of space weather impacts on geostationary satellites
AuthorLam, H -L
SourceGeological Survey of Canada, Open File 7390, 2015, 71 pages,
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
Subjectsgeophysics; remote sensing; magnetic disturbances; magnetic field; magnetic interpretations; magnetic storms; solar energy; solar variations
Illustrationsscreen captures; diagrams; cross-sections; plots; rose diagrams
Natural Resources Canada Library - Ottawa (Earth Sciences)
ProgramTargeted Hazard Assessments in Northern Canada, Public Safety Geoscience
LinksSpace Weather Canada / Météo Spatiale Canada
Released2015 01 20
AbstractAn overview of space weather effects on geostationary satellites and engineering designs to mitigate the effects is presented. NRCan Space Weather Hazards Group's work related to the reduction of space weather impact on satellites is highlighted. It is shown that NRCan's real-time geomagnetic data can be utilized to implement practical guidelines, hitherto not proposed before, to provide warning and situational awareness of possible surface charging of satellites. Since Space Weather Hazards Group also dispenses routine forecasts of energetic electron fluence, dangerously high fluence level that signals possible impending internal charging of satellites can be forewarned 1-3 day in advance. The electron forecast web page has consistently received large numbers of visits over the years, indicating the usefulness of the electron forecast to the space community regarding internal charging. Nonetheless, the existing prediction algorithm can be further improved to provide even better electron forecasts by incorporating the high cadence of NRCan's geomagnetic data using results of studies on ULF (Ultra Low Frequency) waves in relation to electron enhancements. Attention should also be paid to possible triggers of electrostatic discharge by more closely examining natural electromagnetic transients after charging has occurred. A space weather anomaly investigation system to discern space environmental causes of satellite anomalies has been developed so that anomaly history of a particular satellite due to specific space weather conditions can be chronicled for consideration in future design modification of satellites of similar make.
Summary(Plain Language Summary, not published)
Space weather refers to the dynamic conditions on the Sun and in the space environment, in particular, in the near-Earth environment, that can affect critical infrastructure. NRCan operates the Canadian Space Weather Forecast Centre and conducts research into space weather effects on satellites, power systems, pipelines, radio communications and GNSS positioning to help Canadian industry understand and mitigate the effects of space weather. This document provides an overview of space weather impacts on geostationary satellites, and furnishes guidelines in the utilization of space weather nowcasts and forecasts as well as in engineering designs to alleviate such impacts. As modern society is increasingly dependent on satellite communication, the availability of technical guidelines to mitigate the impact of space weather on geostationary satellites is relevant to Canada¿s well-being.