In order to help ensure that the maximum benefit from investment in the space based global observing system is realized, the JCSDA is currently preparing to use these data, including data from NPOESS, NPP and GOES-R. A key part of the preparation is assimilation of the data from heritage instruments and preparation of the JCSDA Community Radiative Transfer Model (CRTM) for the NPOESS and GOES-R instruments. Data from the heritage instruments have been assimilated and used within NCEP, GMAO and NRL analysis and prediction systems as part of the groundwork for the use of the Cross-track Infrared Sounder (CrIS), the Hyperspectral Environmental Suite (HES), the Visible/Infrared Imager and Radiometer Suite (VIIRS), the Advanced Baseline Imager (ABI), the Advanced Technology Microwave Sounder (ATMS) and other NPOESS and GOES-R instruments. Improved methods of extracting information from these data and their efficient use have been studied. In addition, radiative transfer models have been developed for several of the new instruments. These activities will allow the JCSDA partner organizations, who already assimilate data from more than 30 satellite instruments, to make early use of the data from NPOESS, NPP and GOES-R soon after they are launched.