space weather for situational awareness
DESCRIPTION
Space Weather for Situational Awareness. Ted Driver. Introduction. Quick intro about what we do Review of space environment technologies our customers use New work for situational awareness (SA) users Current limitations. AGI technologies. AGI Tools – navigation perspective. Components - PowerPoint PPT PresentationTRANSCRIPT
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Space Weather for Situational Awareness
Ted Driver
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Introduction
• Quick intro about what we do
• Review of space environment technologies our customers use
• New work for situational awareness (SA) users
• Current limitations
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AGI technologies
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AGI Tools – navigation perspective
• STK – Space segment– GNSS satellite and receiver design– Communications analysis
• NavTK– User segment– High fidelity receiver modeling– Navigation error analysis
• ODTK– Control Segment– GNSS Measurement processing– Orbit/Position/Maneuver determination
• Components– Dynamic Geometry
Library– Navigation Library– Terrain Library– Web enabled– .Net C#
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Current AGI space weather modeling
• STK/Space Environment– Radiation dosing over time
• AFRL and NASA models used
– South Atlantic Anomaly
effects– Micrometeoroid impacts– Vehicle Temperature
• NavTK and ODTK– IRI2001 Ionospheric model
as ‘truth’
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New work
• Re-engineering Space Environment tool– Working with a new partner to seamlessly integrate
pieces from AF-GEOSpace models into STK
• Moving to IRI2007 model
• HF comm outage developments– Current model depends on propagation loss calculated
from slant range TEC values – not easy!
• Near real time ionospheric error analysis tool– Shows unique capabilities of our components with
readily available data
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Iono error analyst
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Current limitations
• Only viable at ground level
43 miles
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Current limitations
• Only valid over CONUS
• World wide slant range TEC would be extremely beneficial
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Current limitations
• Data only available in near real time– ~30-45 minute lag– Predictive capability would make situational awareness
more complete
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Summary
• AGI tools help our customers understand their environment
• Current space weather tools address customer requested capabilities
• New work will address wider range of data and data availability
• New technologies will deliver precise, accurate information in new ways
