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Lightweight Federated Data Networks with Das2 Tools
  • +4
  • Chris Piker,
  • Larry Granroth,
  • Joey Mukherjee,
  • David Pisa,
  • Baptiste Cecconi,
  • Andrew Kopf,
  • Jeremy Faden
Chris Piker
University of Iowa

Corresponding Author:chris-piker@uiowa.edu

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Larry Granroth
University of Iowa
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Joey Mukherjee
Southwest Research Inst
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David Pisa
University of Iowa
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Baptiste Cecconi
Paris Observatory Meudon
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Andrew Kopf
University of Iowa
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Jeremy Faden
University of Iowa
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Abstract

Das2 describes a collection of cooperating programs originally created to support daily review and analysis activities of the Cassini Radio and Plasma Wave Science (RPWS) investigation. The system proved useful and is now relied on for rapid access to working data sets from many planetary missions including Mars Express and Juno, as well as ground-based radio astronomy results from the Nançay Decameter Array and Long Wave Array 1. As more teams have begun using das2 tools, the need for updates to what was largely an in-house protocol have become apparent. Though Autoplot continues to be the most flexible and commonly used das2 client program, interfacing with other tools would benefit the research community. We will provide an overview of recent updates to the das2 interface definition supporting redundant servers and federated data source catalogs. We will describe a cross site deployment between Southwest Research Institute and the University of Iowa to aid collaboration among ASPERA-3 and MARSIS investigators. We will give an update on the status of new client libraries for NumPy and IDL, as well as das2 stream adapters for HAPI and VOTables. Finally, we will describe how working data sets can be published in-place by registering das2 data sources with a VESPA EPN-TAP service.