The GNSS Geospace Constellation (GGC): A Space Weather Mission Concept

This report is based on a submission to the Request For Information (RFI) associated with the 2007 Earth Science And Applications From Space, National Academies (ISBN 978–0-309–10387–9, https://doi.org/10.17226/11820). The RFI responses were distributed on CD-ROM along with a hardcopy of the Decadal Survey. Appendix D of the Decadal Survey contains information expected in the responses to the RFI, and this document should be understood in that context.