What! No interest in the summer job watching for neutrinos light up a detector at
Fermi Lab in Chicago? :-)
prg wrote:

> W. Watson wrote:
>
....
> I
>
>> think the last time I asked him about this he offered, "very
>
> accurate". I've
>
....
>
>
> "very accurate" would indicate the need for ntp, but for now maybe something less
> will do ;-)
>
> [snip]
>
>
>> ... However, I'm beginning to think that maybe adjtimex is the way to go. ...
>
>
> Actually, I was going to suggest this as a "good enough for now solution" till you
> work out other issues -- didn't want to inject yet another detour toward ultimate
> victory lest you shriek, "Gods, my head is aching and my patience is exhausted."
When I approach that stage, I got get my Complete Book of New Yorker contains and
begin reading. It and the 2 CDs contain 68,000+ cartoons. I'm through the first 1600
in the book.
>
>
>> ...(This is with a nod to the fact that my effort to use the
>
> authoritative
>
>> time change registry change I've mentioned throughout this thread has
>> temporarily aground.) It (adjtimex) sure sounds a lot easier to
>
> implement.
>
>> This (NTP, synching time off the net, and related attempts) is taking
>
> too
>
>> much time in the face of other objectives.
>
> [snip]
>
>
>> However, a big part of this is to have good timestamping between two distant
>> observers.
>
>
> 30 miles ain't that far apart at meteor velocities, is it? That's why the more
> accurate the better.
Unfortunately, neither one of us wanted to move another 100 miles from the other. :-)
Basically, we took what we could get. Yes, ideally we should be much further apart,
but our dual sights are often good enough to put together a decent trajectory.
>
> [snip]
>
> The adjtimex manpage looks pretty clear -- is it clear to you what you need to do
> to use it? As suggested in the manpage, it would be nice if you could run ntp on
> the Linux box for at least several (12 hrs good, 24 hrs better). Can you afford
> to use your modem on the Linux box like that to acquire some good error/correction
> data? Maybe overnight? Quiet net traffic is best for making this work.
I definitely know how to use it. I just need to review the methodolgy. My other
partner, my wife, is particularly adept with it. Are you thinking of a script that
dials out at 2 am and gets the time, and updates accordingly? Ah, I see more below.
>
> This combined with a cron job running clockdiff -- $ man clockdiff -- to fetch the
> timestamp time from XP (d**d firewall gonna allow it?) would allow you to keep
> Linux awfully close (-10 ms) to XP's time, so that if you can verify that XP's
> time synching is adequate to your needs this may automate the whole process once
> adjtimex corrections are applied to Linux. From a Linux X terminal you could run
> clockdiff and see if it works without messing with XP's fw (not likely is my
> guess).
Something to consider.
>
> If this sounds like someting worth exploring, let me know and I'll whip up
> something -- or someone else around here may have something already scripted. If
> this will work "good enough" it would allow you to get on to better things and
> come back to synching to XP's clock when life allows.
I'll keep it in mind. See end note.
>
> I'll post some reference links re: XP's firewall separately -- may be usefull to
> have on hand.
>
> hth, prg email above disabled
>
> PS Could you maybe set the width on your posts to something like 64 -- I'm
> getting 10-15 char softwraps with most lines and it makes "quoted" lines break up
> and hard to read.
>
Yes, I've found the formatting a little odd. I'll see what I can do. I get some
strange things at times. When some I reply some people, their lines are unwrapped
completely, and I have to rewrap them. Never quite understood that. Moz 1.6 is what
I'm using.

We'll at this point, I'm just taking it easy waiting for someone on a windows group
to tell me why I cannot get by the 3rd step in the authoritative time document that I
tried using to make registry changes for NTP. I'll do what I can through Thursday to
deal with what I can, then I'm going on a four day birding trip. When I get back,
I'll evaluate what I then know, and follow a path that seems reasonable for at least
an improvement in my present arrangement. I'm sure my partner will have some input on
it. He's been away for 2 weeks. Whatever it is it'll be something I can do with less
effort than I've put into this so far. Then it's back to working on meteor detection
methodolgy and algorithms.

--
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

Web Page: <home.earthlink.net/~mtnviews>