Colleagues-
This is definitely not my area of expertise but it may be of interest to our GNSS/Geodesy colleagues:
_________________________________________________________________________
Space Weather News for Dec. 20, 2014
http://spaceweather.com
Solar activity is high. A pair of large sunspots is crossing the center of the solar disk, and both are crackling with flares. The strongest so far, an X1.8-class flare on Dec. 20th, caused a strong HF radio blackout over the South Pacific and might have hurled a CME toward Earth. Visit> http://spaceweather.com
You are subscribed to the Space Weather mailing list, a free service of Spaceweather.com.
New subscribers may sign up for free space weather alerts at http://spaceweather.com/services/ .
To unsubscribe click here: http://www.spaceweather2.com/u?id=1408685X&n=T&l=spaceweather or send a blank email to leave-spaceweather-1408685X@www.spaceweather2.com
_______________________________________________________
Do these sunspot flares affect our GPS access ?
Cheers,
Derek
> Do these sunspot flares affect our GPS access ?
I've watched the warnings over the years and compared data. I guess I've been lucky, but all I've really noticed is some erratically high PDOPs. Probably ionospheric disturbances from the CME. I've never noticed anything else really horrible except maybe a little lengthy time obtaining lock.
PIC-
TU
Derek