Observers' Data Access Portal: Realtime Streaming for Astronomical Data

(2) Caltech/IPAC-NExScI); C. R. Gelino (2); G. Bruce Berriman (2); J. A. Mader (1); J. Good (2) ((1) W. M. Keck Observatory; M. Brodheim (1); M. S. Lynn (2); T. Coda (1); T. Oluyide (2)

Observers' Data Access Portal: Realtime Streaming for Astronomical Data

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arxiv 2409.09231 v1 pith:35CTQNYL submitted 2024-09-13 astro-ph.IM

T. Coda (1) , T. Oluyide (2) , M. S. Lynn (2) , J. A. Mader (1) , G. Bruce Berriman (2) , M. Brodheim (1) , C. R. Gelino (2) , J. Good (2) ((1) W. M. Keck Observatory

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(2) Caltech/IPAC-NExScI)

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The W. M. Keck Observatory Archive (KOA) has released the Observers Data Access Portal (ODAP), a web-application that delivers astronomical data from the W. M. Keck Observatory to the scheduled program's principal investigator and their collaborators anywhere in the world in near real-time. Data files and their associated metadata are streamed to a user's desktop machine moments after they are written to disk and archived in KOA. The ODAP User Interface is built in React and uses the WebSocket protocol to stream data between KOA and the user. This document describes the design of the tool, challenges encountered, shows how ODAP is integrated into the Keck observing model, and provides an analysis of usage metrics.

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