Integration of Data Reduction and Near Real-Time Archiving into the Keck Observing Model

The W. M. Keck Observatory is welcoming a new era where data reduction and archiving are tightly integrated into our observing model, under the auspices of the Observatory's Data Services Initiative (DSI) project. While previously the Keck Observatory Archive (KOA) archived minimally processed, raw science data the day after observing, Keck is transitioning to a model in which it archives both raw frames and reduced data in near real-time. These data will be made available to observers and collaborators immediately upon ingestion through a dedicated new interface that will support collaboration and sharing among teams, as well as stream data directly to personal computers without access to Keck's internal networks. Both the raw and science-ready data products will be made publicly available upon the expiration of data protections. The Keck Cosmic Web Imager (KCWI) instrument is the first whose data are managed this way. It showcases how KOA integrates into an observing night, provides the data needed to make real-time adjustments to observing, and delivers products that allow for faster publication by both our observers and archival researchers. This effort has involved the delivery of new, compact, Python-based data preparation and ingestion software. We also discuss the new and updated Data Reduction Pipelines (DRPs) required to generate science-ready data, how their development and deployment enables the delivery of these products, and how Keck's commitment to maintaining DRPs in-house will result in more robust datasets for all our observers and KOA users.