Spacecraft Risk Posed by the 2016 Perseid Outburst

No abstract availabl

The 2019 Meteor Shower Activity Forecast for Low Earth Orbit

The purpose of this document is to provide a forecast of major meteor shower activity in low Earth orbit. Several meteor showers - the Draconids, Perseids, eta Aquariids, Orionids, and potentially the Andromedids - are predicted to exhibit increased rates in 2019. However, no storms (meteor showers with visual rates exceeding 1000 [1, 2]) are predicted

Recent Corrections to Meteoroid Environment Models

No abstract availabl

Walking and Jogging for Fitness (GHC)

This Grants Collection for Walking and Jogging for Fitness was created under a Round Seven ALG Textbook Transformation Grant. Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process. Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials: Linked Syllabus Initial Proposal Final Reporthttps://oer.galileo.usg.edu/health-collections/1006/thumbnail.jp

Concepts of Fitness and Wellness (GHC)

This Grants Collection for Concepts of Fitness and Wellness was created under a Round Seven ALG Textbook Transformation Grant. Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process. Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials: Linked Syllabus Initial Proposal Final Reporthttps://oer.galileo.usg.edu/health-collections/1005/thumbnail.jp

Walking and Jogging for Fitness

This open textbook for Walking and Jogging for Fitness at Georgia Highlands College was created through a Round Seven ALG Textbook Transformation Grant and updated with a Round 14 Mini-Grant. Topics covered include: Benefits of Walking and Jogging for Exercise Getting Started in a Walking and Jogging Program Adaptations to Stress Technique: The Art of Walking and Jogging Nutrition and Energy Requirements Injuries and Injury Prevention Appendix on Flexibility 2nd Edition: Editors\u27 Description: The deliverables of the mini grant were: 1. Mini-lecture recordings to aid in focusing the efforts of students by offering an overview of the chapter content. 2. PowerPoint slides for all chapters which align with the textbook to augment the content and increase the learning experience for students. 3. Chapter terminology checklists to provide an informational foundation for content. 4. Homework test questions for all chapters so that students can test their knowledge and identify content gaps. 5. Recorded visual demonstrations for activity-based exercise Labs that can be accessed as many times as is necessary to increase the understanding of performance expectations, and serve as a clear reference point for students.https://oer.galileo.usg.edu/health-textbooks/1004/thumbnail.jp

The Velocity and Density Distribution of Earth-Intersecting Meteoroids: Implications for Environment Models

No abstract availabl

The 2020 Meteor Shower Activity Forecast for Low Earth Orbit

The purpose of this document is to provide a forecast of major meteor shower activity in low Earth orbit (LEO). Typical activity levels are expected for nearly all showers in 2020; only the Geminids, which are gradually increasing in strength over time, are expected to be stronger than in previous years. No meteor storms or outbursts are predicted for 2020

The Draconid Meteoroid Stream 2018: Prospects for Satellite Impact Detection

International audiencePredictions of the 2018 Draconid activity at the Earth and the Sun–Earth L1 and L2 Lagrange points are presented. Numerical simulations of the meteoroids' ejection and evolution from comet 21P/Giacobini–Zinner are performed with a careful implementation of the results analysis and weighting. Model meteoroid fluxes at Earth are derived using as calibration the main peak date, intensity, and shower profiles of previous Draconid outbursts. Good agreement between the model and measurements is found for the 1933, 1946, 1998, and 2011 showers for a meteoroid size distribution index at ejection of about 2.6. A less accurate estimate of the peak time for the 1985, 2005, and 2012 predominantly radio-observed outbursts was found by considering the contribution of individual ejection epochs, while the model peak flux estimate was found to agree with observations to within a factor of 3. Despite the promising geometrical configuration in 2018, our simulations predict low Draconid activity is expected on Earth, with a maximum of less than a few tens of meteors per hour around midnight of 2018 October 9, confirming previous models. At the L1 and L2 Lagrange points, however, the flux estimates suggest a "meteoroid storm." The Gaia spacecraft at the L2 region might be able to detect small (≈μg) Draconid meteoroid impacts centered in a two-hour window around 18h30m UT on the 2018 October 8