Ionospheric Considerations for Wide Area GPS Augmentation Systems
Ionospheric Considerations for Wide Area GPS Augmentation Systems
Ionospheric Considerations for Wide Area GPS Augmentation Systems
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Safety: Faults & “Rare Normal” EventsOctober 1993modulation faultClock “runoffs”7/28/01, 5/26/036/11/03 & more40 notableiono eventsduring the lastsolar peakRFI events:• San Diego• St Louis•Santa CruzApril 10, 2007 ephemerisfault & 24 smaller faultsover the last 5 years4