the nvo portal tom mcglynn, nasa/gsfc gretchen greene, st sci john good, irsa/ipac roy williams,...
TRANSCRIPT
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The NVO Portal
Tom McGlynn, NASA/GSFCGretchen Greene, ST ScI
John Good, IRSA/IPACRoy Williams, CACR/Caltech
Mike Fitzpatrick, NOAO
THE US NATIONAL VIRTUAL OBSERVATORY
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Purpose
Make it easy for astronomers to find useful information in the VO
• Accommodate many different kinds of searches
• Web interface with no required downloads
• Easy linkage between Web and scripting capabilities
• No VO jargon
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Design
• Collaborating, distributed, simple elements• Standard protocol for transmitting information
between elements: • List of sources• List of resources
– All VOTables
• Elements call each other as appropriate with many starting points.
• Common templates and vocabulary
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Table ViewerTable Viewer RegistryRegistry InventoryInventory
CollectorCollector IntegratorIntegrator CommandLine
CommandLine
Table Translator
Table Translator
HelpHelp More ToolsMore Tools
Data Discovery Portal (concept)
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Current Portal Home Page
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http://heasarc.gsfc.nasa.gov/vo/portal/
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Portal help
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Registry
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Registry
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Registry
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Registry SearchMe -> Table Viewer
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Table Viewer: Display …
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TableViewer: … and Filter
ASCII FileXML FileVIM ServiceInventory Service
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Table Viewer: … and plot
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Viewer sends table to Inventory
.
Find resources with data near list of positions
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Inventory Service: View a result
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Build up table with VIM Integrator
See Roy’s talk later today.
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VIM Integrator: Getting lists of images
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DataScope Collector: single source
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Collector: Main page
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Collector: Resource summary
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Collector Aladin
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VOClient: Command Line Search and retrieval
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VOClient capabilities
• VORegistry: search the registry• VOSesame: Name resolver• VOData: Query resources at a single or multiple
positions cat list | vodata -q -V -X -O - -p - -rd 1.4 \ ivo://nasa.heasarc/skyview/neat
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Table formatter
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Table Wizard
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See John McQ’s talk
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Key elements
• Common template -> coherent environment• Common JavaScript/XSLT VOTable processing
– Potentially useful in any Web app that displays VOTables.
• Standard formats for passing information among elements.
• VOClient used within inventory, table viewer as well as by users.
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Status and Plans
• All elements functional• Alpha release for comment and testing
– http://heasarc.gsfc.nasa.gov/vo/portal and links therein
• Registry inconsistencies can lead to services not being found.
• Further work in eliminating jargon and smoothing user experience.
• Beta release to public soon.• Please send comments!
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