I'll be collecting, and analyzing the data from about 40 cesium's, so it'll take me a bit, but as soon as I have it, I'll pass it along. thanks for the dates to look at.
Rai -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of tom jones Sent: Friday, June 08, 2007 18:54 To: [email protected] Subject: [time-nuts] solar flares and cesium drift I dont know about the cesium, but I can advise that in my opinion there have not been any major geomagnetic storms in the past few days. In fact nothing different to what has been happening for most of the last month. If anything it is relatively quiet. Solar flares do not produce an magnetic effect, they are purely radiation. What often happens is the emission of an associated CME and the currently active area #960 was right on the limb of the visible disc when the flares occured so any CME missed us. I supose it is possible that the radiation has affected the accuracy of GPS as received after passing through the ionosphere, but surely this would have been corrected very quickly? Cheers de Alan G3NYK Hi Alan What I was looking at was the xray events this past week from sunspot #960 There has been about 40 medium size xray events and I assumed that geomagnetic events went hand in hand with xray events and thought it was an explanation for my cesium/loran drift. I was wondering what specific dates you had this observation? I'd like to compare that data, against some of the data I have. Raimond Melkers Hey Raimond here is my data please sent yours if possible. From 17:26pdt on 6-04-07 To 07:20pdt on 6-05-07 I lost 40 to 50ns and continuing To 21:38pdt on 6-05-07 I lost another 10ns to 20ns and continuing To 05:23pdt on 6-06-07 I lost another 100ns to 110ns (strong winds ) continuing To 06:13pdt on 6-07-07 I lost another 50ns and continuing To 17:45pdt on 6-08-07 I gained 90ns could today gain be a gps correction? Happy Time keeping: Tom My orignal posting: We've had several solar flares this past week. My cesium standard has lost about 200ns as compared with fallon loran and gps. I was showing approximately 10 to 30 nanoseconds cesium drift the previous weeks when solar activity was quiet. I'm assuming all the drift I'm observing is my cesium standard (5061) and not loran or gps especially because loran is steered by gps and gps is steered by usno-amc. Has anyone else noticed any extra cesium drift this week? I'm assuming this drift is due to changes in the earth geomagnetic field due to solar activity? --------------------------------- Need a vacation? Get great deals to amazing places on Yahoo! Travel. _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
