## 8 Summary and Conclusions  
The S-NPP satellite has been extremely successful in operations for the last seven years and has produced an array of very high quality atmospheric, land, ocean, and cryosphere data products. The recently launched NOAA-20 is producing high quality data products currently provided through S-NPP, along with additional products as a direct result of the instrument upgrades and science improvements. All of the S-NPP data products have passed through the Cal/Val validated maturity stage, and the products are now at the long-term monitoring and reactive maintenance phase. The NOAA-20 KPP products have all reached validated maturity status as of October 2018. The NOAA-20 EDR products are currently at the Beta/Provisional maturity stages, and most EDRs had reached provisional maturity stage by the end of 2018. The S-NPP/NOAA-20 satellite data products are disseminated through the NOAA's PDA and CLASS systems for NOAA stakeholders and user agencies worldwide. Progress on using S-NPP products in NWP assimilations worldwide, in support of observing and predicting key weather phenomena (e.g., hurricanes, blizzards), and for event-based applications (e.g., flash floods, volcanic ash, wildfires, etc.), have shown remarkable success. The ability to derive JPSS products regionally at a much higher latency through DB networks using CSPP has been extremely fruitful for many real-time applications. The JPSS-2 and follow-on satellites (JPSS-3, 4) with similar instruments and consistent science products produced from the JPSS constellation provide users with the opportunity to transition from the aging legacy NOAA POES and EOS Aqua and Terra satellites products and keep-up with continuity and connectivity for coordinated science experiments. Commitments and collaborative agreements between the JPSS Program, EUMETSAT, and JAXA are leading to a wide variety of enterprise algorithm solutions for consistent data product generation, demonstration of blended product generation and application, and operationalization towards mission-agnostic data products leading to measurement-based approach. The JSTAR Program will continue the development/improvement of algorithms for both S-NPP and NOAA-20, as well as future JPSS missions. The team is also actively engaged in implementing the enterprise algorithms and in reprocessing the S-NPP SDR/EDR data products with the most mature, validated algorithms towards the generation and archival of science quality data products to advance satellite research and applications. Finally, through the ICVS, EDR-LTM, and JPSS Mapper websites, JSTAR provides much needed real-time product display and evaluations, along with numerous documents and webpagelinks on S-NPP/NOAA-20 products, ATBDs, maturity reviews, meeting minutes of JSTAR Annual Science Team Meetings and coordinated efforts with NOAA stakeholders and user communities.  
These authors contributed equally to this work.  
The work of the JSTAR program is funded by NOAA JPSS Office (NJO).  
This paper describes the collective work of government industry and academic teams over the course of many years. The authors would like to acknowledge the hard work and dedication of all contributing individual companies and organizations. The authors would like to thank especially the following JPSS STAR leads for their contributions: [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON]. The manuscript contents are solely the opinions of the authors and do not constitute a statement of policy, decision, or position on behalf of NOAA or the U.S. government.  
The authors declare no conflict of interest.