Thanks Graham, That explains a lot. I had never experienced blips that were this large before. Bob
From: Graham <planoph...@aei.ca> To: time-nuts@febo.com Sent: Sunday, January 8, 2017 4:17 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 > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.