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\begin{document}

\title{Space Physics Data Facility (SPDF) Data Archives and Services in support
of Heliophysics Digital Resources Library (HDRL)}



\author[1]{Robert Candey}%
\affil[1]{NASA Goddard Space Flight Center}%


\vspace{-1em}



  
  \date{May 24, 2024}


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\begin{abstract}
In order to improve access to the data and models of the Heliophysics
System Observatory (HSO) and NASA-funded research projects, the NASA
Heliophysics archive and modeling groups are collaborating to create a
Heliophysics Digital Resources Library (HDRL) for improved cross-mission
and observation-model comparison, machine learning and other large-scale
and collaborative analysis, increased discoverability and usability of
data and model results, software and services, and more complete
metadata and provenance and quality control. Observational data are
archived and served by the Solar Data Analysis Center (SDAC) and the
Space Physics Data Facility (SPDF). The Community Coordinated Modeling
Center (CCMC) provides empirical and first-principles simulations and
analysis and display tools. A number of largely cross-cutting registry,
access, and analysis standards and tools are provided by the
Heliophysics Data and Model Consortium (HDMC). As part of this effort,
SPDF, as the active and final archive for non-solar NASA Heliophysics
data, works with current operating missions and the Heliophysics
community to ingest, preserve and serve a wide range of past and current
public science-quality data from the mesosphere into the furthest reach
of deep-space exploration. SPDF facilitates scientific analysis of
multi-instrument and multi-mission datasets to enhance the science
return of the many missions. SPDF develops and maintains the Common Data
Format (CDF) and the associated ISTP/SPDF metadata guidelines. SPDF
services include CDAWeb, which supports both survey and burst mode data
with graphics, listings and data superset/subset functions. SPDF is
currently receiving and serving data from missions including Parker
Solar Probe, Solar Orbiter, MMS, Van Allen Probes, THEMIS/ARTEMIS, GOLD,
ICON, ACE, Cluster, IBEX, Voyager, Geotail, Wind and many others, and
\textgreater{}120 Ground-Based investigations. SPDF also operates the
multi-mission orbit displays and query services of SSCWeb and 4D Orbit
Viewer, as well as the Heliophysics Data Portal (HDP) discipline-wide
data inventory and access service, and OMNIWeb and COHOWeb for
near-Earth and deep-space solar wind plasma, magnetic field, and
energetic particle database, respectively.%
\end{abstract}%



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