[time-nuts] Something odd - ionosphere?

[Alan Melia]

I doubt that was the cause. The stream was high velocity but low density, 
The geomagnetic activity has been relatively low with little precipitation. 
Th Kp has touched 4 but that is not unusual and what you report seems an 
unusual event.  NOAA data is more reliable than Spaceweather which tends to 
overhype Solar events in my experience. TheDst index has hardly changed over 
the last 6 days.

If no one else reports a glitch.....Do you need to look closer to home??

Alan
G3NYK

----- Original Message ----- 
From: "Graham" <planophore at aei.ca>
To: <time-nuts at febo.com>
Sent: Sunday, January 08, 2017 10:17 PM
Subject: Re: [time-nuts] Something odd - ionosphere?


>
> *SOLAR WIND SURROUNDS EARTH:*For the fifth day in a row, Earth is 
> surrounded by a fast-moving stream of solar wind flowing froma large hole 
> <http://spaceweather.com/images2017/03jan17/ch_strip.png?PHPSESSID=qldvtt9u8qamt2b19ncupb86p2>in 
> the sun's atmosphere. NOAA forecasters say there is a 40% chance of 
> G1-class geomagnetic storms on Jan. 8th asbright auroras 
> <http://spaceweathergallery.com/aurora_gallery.htm>flicker around the 
> Arctic Circle.
>
> http://spaceweather.com/  for further details
>
> cheers, Graham ve3gtc
>
> On 2017-01-08 20:48, Bob Stewart wrote:
>> This morning at about 0400 CST and again at more or less 0800CST, I 
>> noticed a number of large phase excursions on one of the GPSDOs I'm 
>> testing.  It also happened the day before but I didn't notice the time. 
>> I am comparing the 1PPS from two separate units on a 5370.  On the one 
>> unit I was logging, there were 2 or three phase excursions of up to +/- 
>> 28ns or so at these times.  And yet, the 5370 showed nothing out of the 
>> ordinary on the plot of the phase difference between the two units.  So 
>> that tells me that it happened to both GPSDOs.
>>
>> Did anyone else see anything odd in whatever units you're logging at 
>> around this timeframe?  Was this likely caused by an ionospheric shift?
>>
>> Unfortunately, I didn't save the data for any of that, as I was only 
>> logging one of the units.  Now I'm logging both units in question, as 
>> well as the Timelab data, and of course it probably won't happen again.
>> Bob
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