Did I put my foot in it? It was a sincere question.
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.
