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]> wrote: > > Tom, are some specific hypotheses being tested or is this purely > exploratory? > > Bill > > > On Thursday, July 13, 2017, Tom Van Baak <[email protected]> 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:;>> >> To: "Tom Van Baak" <[email protected] <javascript:;>>; "Discussion of >> precise time and frequency measurement" <[email protected] <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:;>> >>> To: "Discussion of precise time and frequency measurement" < >> [email protected] <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:;> >>>> 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. >> >> _______________________________________________ >> 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.
