[time-nuts] How well does GPS work in the Arcitic?

jimlux jimlux at earthlink.net
Mon Aug 14 19:55:56 EDT 2017

On 8/14/17 4:45 PM, Hal Murray wrote:
> The satellite orbits only go so far north?  If you are far enough north for
> that to be a problem, can you pick up the satellites across the pole?
> I have several days of NMEA log files from 68 N.  I think it will be simple
> after I have done it, but it may be a while before I get time to plot them.
> Does anybody have (non-Windows) code to that?

lack of SBAS (WAAS) is an issue.

HDOP is better, VDOP poorer because of orbit inclination (no satellites 

ionospheric effects worse (TEC varies a lot more in polar regions)

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