A series of radiance upgrades has been tested and included in the RAP version 4, including adding new data (e.g., ATMS, CrIS, IASI, SEVIRI, AIRS etc.) with channel selection, supplementing the standard data feed with direct broadcast data, and delaying partial cycles for improved real-time data coverage. With the new radiance updates, positive impact has been seen from our preliminary retrospective runs. We are conducting a comprehensive data impact study for each individual and/or combined data sets within the framework of RAP version 4 through retrospective runs with short-range forecast verifications. In addition, we will be examining the ABI data from GOES-16 and testing assimilation of them toward a planned inclusion of them in the next version of the RAP and the High-Resolution Rapid Refresh (HRRR) systems. At the conference, we will report on progress to date in all aspects of updates on satellite radiance data assimilation within RAP.