Hi
> On Jul 13, 2017, at 11:06 PM, William H. Fite <[email protected]> wrote: > > Did I put my foot in it? It was a sincere question. No I don’t think you did. If I implied otherwise, I’m sorry for the imprecision of what I wrote. I’m not at all sure of what one would see. I’m only guessing that the result will be observable. Bob > > > On Thursday, July 13, 2017, Bob kb8tq <[email protected]> wrote: > >> Hi >> >> I think we are both taking it as a given that the eclipse’s impact on the >> ionosphere will >> be “visible” even with a fairly simple setup. I guess that might qualify >> for a very loose >> definition of the term “hypothesis” in my case. I can’t speak for Tom. >> >> Bob >> >>> On Jul 13, 2017, at 6:24 PM, William H. Fite <[email protected] >> <javascript:;>> wrote: >>> >>> Tom, are some specific hypotheses being tested or is this purely >>> exploratory? >>> >>> Bill >>> >>> >>> On Thursday, July 13, 2017, Tom Van Baak <[email protected] >> <javascript:;>> wrote: >>> >>>> The trick is to just run the timing receiver in all-in-view mode >>>> collecting 1PPS data against your house standard as usual, but also >> capture >>>> all the binary message(s) where the per-SV Az/El/SNR and phase residuals >>>> are reported. This allows you to re-create the individual "1PPS" from >> each >>>> SV used in the timing solution. Or maybe just use the RINEX data. This >> is >>>> what I was referring to in the CORS reference to Brooke. >>>> >>>> It would be "cheating" to know the eclipse path ahead of time and mine >> the >>>> data for confirmation. Instead I dare you to blindly mine the GPS data >> for >>>> all of August and then make a bold claim when and where the eclipse was, >>>> like capturing a trace through a cloud chamber. Having done all that you >>>> can "look in the back of the book" for the actual eclipse path to see >> how >>>> right you were. >>>> >>>> /tvb >>>> >>>> ----- Original Message ----- >>>> From: "Bob kb8tq" <[email protected] <javascript:;> <javascript:;>> >>>> To: "Tom Van Baak" <[email protected] <javascript:;> <javascript:;>>; >> "Discussion of >>>> precise time and frequency measurement" <[email protected] >> <javascript:;> <javascript:;> >>>>> >>>> Sent: Thursday, July 13, 2017 3:01 PM >>>> Subject: Re: [time-nuts] WWVB & Eclipse >>>> >>>> >>>> Hi >>>> >>>> If one perhaps knew the path of the eclipse in advance *and* had a GPS >>>> timing receiver that >>>> could be set somehow to look at a single satellite….. all one would need >>>> is a means of comparing >>>> the output to a stable reference to *possibly* observe something >>>> interesting. >>>> >>>> More or less: You know the path of eclipse roaring along bashing the >>>> ionosphere. You can (maybe) >>>> pick a sat who’s signal traverses that region while getting to your >>>> location during the eclipse. Yes, it’s >>>> not original science. It might still be fun. >>>> >>>> Bob >>>> >>>> >>>> >>>>> On Jul 13, 2017, at 5:55 PM, Tom Van Baak <[email protected]> wrote: >>>>> >>>>> Brooke, >>>>> >>>>> Nice set of links. Thanks. There's a poster here with an overview: >>>>> >>>>> https://cedarweb.vsp.ucar.edu/wiki/images/6/60/Magdalina_ >>>> Moses-Eclipse_Research_CEDAR_Poster.pdf >>>>> >>>>>> Is there a study based on GPS observations? >>>>> >>>>> It will all be there for free in CORS. It's just a matter of mining the >>>> data. >>>>> Apparently this is done a lot. Here are some random examples of what >> can >>>> be done. Pretty amazing. >>>>> >>>>> https://www.ngs.noaa.gov/PUBS_LIB/2005_01_ION_NTM_Ionosphere.pdf >>>>> http://www.gps.gov/cgsic/smg/2004/smith.pdf >>>>> https://arxiv.org/pdf/1006.3565.pdf >>>>> >>>>> Google for a subset of words like: CORS Ionosphere Monitoring Analysis >>>> Modeling TEC >>>>> >>>>> /tvb >>>>> >>>>> ----- Original Message ----- >>>>> From: "Brooke Clarke" <[email protected] <javascript:;> >> <javascript:;>> >>>>> To: "Discussion of precise time and frequency measurement" < >>>> [email protected] <javascript:;> <javascript:;>> >>>>> Sent: Thursday, July 13, 2017 1:35 PM >>>>> Subject: [time-nuts] WWVB & Eclipse >>>>> >>>>> >>>>>> Hi: >>>>>> >>>>>> There's a massive experiment relating to the strength of WWVB and a >>>> transmitter in Dixon California. >>>>>> >>>>>> https://www.washingtonpost.com/news/speaking-of-science/ >>>> wp/2017/07/12/a-massive-atmospheric-experiment-is- >>>> planned-for-august-solar-eclipse/?utm_term=.4d7101b869f6 >>>>>> >>>>>> http://eng.umb.edu/~eclipsemob/index.php <http://eng.umb.edu/% >>>> 7Eeclipsemob/index.php> >>>>>> >>>>>> http://www.hamsci.org/sites/default/files/publications/ >>>> 2017_IES_Liles.pdf >>>>>> This article says Dixon may transmit at 55.1 and 135.95 kHz. >>>>>> >>>>>> The EclipseMob receiver works with a smart phone acting as an SDR. as >>>> well as the source of it's position and the >>>>>> date-time of observation. >>>>>> >>>>>> There is a parallel study based on ham radio WSPRNet and Reverse >> Beacon >>>> Network. >>>>>> http://hamsci.org/ >>>>>> >>>>>> Is there a study based on GPS observations? >>>>>> >>>>>> -- >>>>>> Have Fun, >>>>>> >>>>>> Brooke Clarke, N6GCE >>>>>> http://www.PRC68.com >>>>>> http://www.end2partygovernment.com/2012Issues.html >>>>>> >>>>>> _______________________________________________ >>>>>> time-nuts mailing list -- [email protected] <javascript:;> >> <javascript:;> >>>>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>>> mailman/listinfo/time-nuts >>>>>> and follow the instructions there. >>>>> _______________________________________________ >>>>> time-nuts mailing list -- [email protected] <javascript:;> >> <javascript:;> >>>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>>> mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] <javascript:;> >> <javascript:;> >>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>>> mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>> >>> >>> -- >>> William H Fite, PhD >>> Independent Consultant >>> Statistical Analysis & Research Methods >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] <javascript:;> >>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] <javascript:;> >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >> and follow the instructions there. >> > > > -- > William H Fite, PhD > Independent Consultant > Statistical Analysis & Research Methods > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
