Download - Space Weather for Situational Awareness

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Space Weather for Situational Awareness

Ted Driver

Pg 2 of 12AGI www.agi.com

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

• 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#


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’


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


Iono error analyst


Current limitations

• Only viable at ground level

43 miles


Current limitations

• Only valid over CONUS

• World wide slant range TEC would be extremely beneficial


Current limitations

• Data only available in near real time– ~30-45 minute lag– Predictive capability would make situational awareness

more complete


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


Questions?

Ted [email protected]

blogs.agi.com/NavigationAccuracy