[time-nuts] "GPS once a day issues" ?

David J Taylor david-taylor at blueyonder.co.uk
Mon Oct 20 05:15:32 EDT 2014


Since the satellite orbit the earth with a period of 11 hours and 58
minutes, it is actually twice a day.


I've been reminded of that before, but the fact remains that here the 
interruptions when they happen are at 24-hour intervals, not 12-hour 
intervals, and precess at a few minutes per day.  Perhaps the low signal 
coincides with greater background noise/interference at certain times of the 
day?  Although I've not plotted them, I do get the impression that 
07:00-09:00 local is worse than other times....

SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor at blueyonder.co.uk 

More information about the time-nuts mailing list