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.
