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Groups > sci.physics.relativity > #378413
| From | HGW <hw@...> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: The challenge Ralph Rabbidge aka Henry Wilson never met |
| Date | 2016-03-10 08:08 +1100 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <nbq3cr$2uu$1@gioia.aioe.org> (permalink) |
| References | (2 earlier) <nbh6ut$nq2$2@news.albasani.net> <nbkjl8$9mv$1@gioia.aioe.org> <nbkr1f$o48$1@news.albasani.net> <nbn7ui$1ko9$1@gioia.aioe.org> <nbpujp$e8c$1@news.albasani.net> |
On 10/03/16 06:46, Paul B. Andersen wrote:
> On 08.03.2016 20:08, Henry Wilson wrote:
> I don't think you will be able to answer it, though,
> because all you have done so far is to demonstrate
> that you have a serious reading comprehension problem,
> last displayed in your delirium attack quoted above.
>
> But I will give you another chance, maybe you will surprise me?
>
> Here are a few facts which should enable you to answer the question.
>
> But to understand the facts it is necessary to know what
> is meant by "clock time", "clock offset" and "reported time",
> so I will repeat the explanation which gave you delirium:
> (If you calm down, read slowly and think while you read,
> you may avoid another delirium attack.)
>
> The actual satellite clock (the phase) called the "clock time"
> is never corrected while the satellite is in service.
> The "clock time" which is transmitted by the satellite
> may be several us, (or even hundreds of us in some cases)
> off sync from the GPS-time.
> But the satellite is monitored by ground stations, and
> the clock error is measured. The error, called the "clock offset",
> is uploaded to the satellite typically once a day.
> The satellite will transmit this "clock offset" together
> with the "clock time". The correction is made in the receiver,
> the corrected "reported time" = "clock time"-"clock offset".
>
> See:
> https://paulba.no/temp/GPS_clocks.pdf
>
>
> Fact #1:
> | All frequency standards in GPS satellites always were
> | and still are adjusted by -4.4647E-10 before launch.
> Comment:
> As this correction is specified in the official
> specification for the satellites, it is an indisputable fact.
> http://www.gps.gov/technical/icwg/IS-GPS-200H.pdf
> (See chapter 3.3.1.1)
>
> Fact #2:
> | No in flight tuning of the frequency
> | is necessary to make the GPS-work.
> | (If the "clock offset" is daily uploaded)
> Comment:
> The GPS was working for years with Block I
> satellites only, and no in-flight adjustment
> of their frequency was possible. This proves
> that the pre launch adjusted frequency of the standards
> was sufficiently correct.
> But since the precision of the frequency standards are
> in the order of 1E-12 (mostly better, though), a worst
> case scenario will be that they during one day may drift
> as much as 80ns off sync. So a daily update of
> the "clock-offset" would be necessary to keep the reported
> time from the satellites within 100ns of GPS-time.
> The Block IIR satellites, which can be frequency adjusted
> in flight, are better than the Block I satellites, so
> these would obviously also work with no in flight adjustment,
> if the "clock offset" is uploaded daily. But the point with
> the in-flight frequency adjustment is to compensate for
> the drift of the frequency standards in order to increase
> the autonomy of the satellites; they can work for a very
> long time with no new upload of "clock offset".
Obviously, once the main clock offset has been determined after launch,
subsequent drift will be minimal.
Are you aware that each GPS satellite contains a secondary clock that is
synched by the atomic one. It is easy to software correct that
relationship to bring the secondary clock into synch with the ground
clocks.
The GR correction plays no part in the operation of the GPS system and
has served no purpose at all other than linking the name Einstein with
the system as a pure publicity stunt.
> Fact #3:
> | For the GPS to work, the reported time
> | ('clock time' - 'clock offset') from the SV
> | must be in sync with the GPS time to within 100ns.
> Comment:
> So the frequency of the satellite must be correct
> to better than ~E-12.
>
> Fact #4:
> | The GPS works.
> Comment:
> Which proves that the frequencies of the satellites are
> correct within ~E-12.
>
> Fact #5:
> | GPS-time is running with the rate defined by
> | clocks on the geoid. (SI-seconds)
> Comment:
> The rate of GPS-time is defined by the ground clocks,
> and the SV clocks must run at the same rate as observed
> from the ground.
>
> Fact #6:
> | Each satellite will every day have a period of at least
> | 12 hours where no measurement is made, and during which
> | no update of the 'clock-offset' is possible.
> Comment:
> So the period between uploads of the "clock-offset"
> is at least 12 hours.
Fact #7: So fucking what?
>
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The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-05 12:36 +0100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met pcardinale@volcanomail.com - 2016-03-05 07:23 -0800
Re: The challenge Ralph Rabbidge aka Henry Wilson never met HGW <hgw@...> - 2016-03-06 09:42 +1100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Helene Swanhild <helenes@gardenclosure.org> - 2016-03-05 23:02 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Gary Harnagel <hitlong@yahoo.com> - 2016-03-05 15:27 -0800
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Helene Swanhild <helenes@gardenclosure.org> - 2016-03-05 23:31 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Gary Harnagel <hitlong@yahoo.com> - 2016-03-05 15:26 -0800
Re: The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-06 13:14 +0100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Henry Wilson <HGW@home.com> - 2016-03-07 19:09 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-07 22:15 +0100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Henry Wilson <HGW@home.com> - 2016-03-08 19:08 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-09 20:46 +0100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met HGW <hw@...> - 2016-03-10 08:08 +1100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-10 14:25 +0100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Henry Wilson <HGW@home.com> - 2016-03-12 19:07 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Gary Harnagel <hitlong@yahoo.com> - 2016-03-12 14:48 -0800
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Iephthae Sparrow <yvosp@gideoncloud.net> - 2016-03-13 14:08 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-13 09:52 +0100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Iephthae Sparrow <yvosp@gideoncloud.net> - 2016-03-13 12:00 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-13 14:14 +0100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Iephthae Sparrow <yvosp@gideoncloud.net> - 2016-03-13 13:45 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Tom Roberts <tjroberts137@sbcglobal.net> - 2016-03-13 13:15 -0500
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Iephthae Sparrow <yvosp@gideoncloud.net> - 2016-03-13 18:58 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Tom Roberts <tjroberts137@sbcglobal.net> - 2016-03-14 11:07 -0500
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Iephthae Sparrow <yvosp@gideoncloud.net> - 2016-03-14 17:45 +0000
Re: The challenge Ralph Rabbidge aka Henry Wilson never met paparios <paparios@gmail.com> - 2016-03-14 11:03 -0700
Re: The challenge Ralph Rabbidge aka Henry Wilson never met HGW <HGW@home.com> - 2016-03-15 05:49 +1100
Re: The challenge Ralph Rabbidge aka Henry Wilson never met Koobee Wublee <koobee.wublee@gmail.com> - 2016-03-05 23:29 -0800
Re: The challenge Ralph Rabbidge aka Henry Wilson never met "Paul B. Andersen" <relativity@paulba.no> - 2016-03-06 13:13 +0100
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