[time-nuts] WWVB & Eclipse

[Bob kb8tq]

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 <tvb at LeapSecond.com> 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" <brooke at pacific.net>
> To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
> 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
>> 
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