Napvihar - GPS pontossági problémák ( szept 11 -14 )

[Imre Samu]

A precíziós  GPS adatfelvitel híveinek jó tudni, hogy erős napvihar
van/közelít - ami kihat a GPS-ek pontosságára is. ( zavarokat okozhat )
Ha valaki valamit tapasztal - jelezze ... :)

[ http://index.hu/tudomany/2014/09/11/eros_napvihar_kozelit_a_fold_fele/ ]

http://www.swpc.noaa.gov/alerts/archive/current_month.html

Space Weather Message Code: WATA50
Serial Number: 50
Issue Time: 2014 Sep 11 0459 UTC

WATCH:* Geomagnetic Storm Category G3 Predicted*
Highest Storm Level Predicted by Day:
Sep 12: G2 (Moderate) Sep 13: G3 (Strong) Sep 14: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

"Comment: Upgrading the Watch for 13-14 Sep due to anticipated effects from
the CME associated with yesterdays R3 (Strong) event.
Potential Impacts: Area of impact primarily poleward of 50 degrees
Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false
alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low
Earth-orbit satellites and orientation problems may occur.
*Navigation - Intermittent satellite navigation (GPS) problems, including
loss-of-lock and increased range error may occur.*
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."
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