Progress on the NOAA Satellite Observing System Architecture Study and the Way Ahead

The National Oceanic and Atmospheric Administration (NOAA) conducted a study, titled the NOAA Satellite Observing System Architecture (NSOSA) study, to plan for the next generation of weather satellites. This study provided an opportunity to design a modern architecture with no pre-conceived notions regarding instruments, platforms, orbits, etc., but driven by user needs. The study formally concluded in the fall of 2017 and major results were presented at the AMS Symposium in 2018. This paper will provide an update on progress on the study since that time. Major topics will include:

1. A discussion of approaches to future LEO weather satellite systems, including partial disaggregation and potential augmentation systems.
2. Additional refinement of GEO system options, including legacy continuation and hybrid approaches
3. Preferred and refined approaches to space weather collection
4. Lessons learned from community engagement and market research