[time-nuts] Missing Data on archives

[WarrenS]

I sent in a reply posting with a 56.4K attachment and I noticed that at  
http://www.febo.com/pipermail/time-nuts/2009-August/039760.html
NOTHING was shown for the Text or attachment

and on the other Archive;
http://www.mail-archive.com/time-nuts@febo.com/msg21472.html
It just left the posting off all together 

And on
"time-nuts Digest, Vol 61, Issue 17"  
all was there, Text and Attachment


Can anyone explain to me what's going on and how these Archives decide what to delete and ignore?

Thanks,
warren

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----- Original Message ----- 
From: "WarrenS" <warrensjmail-one at yahoo.com>
To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
Sent: Tuesday, August 04, 2009 8:11 AM
Subject: Re: [time-nuts] Allan deviation plots etc
Attachment: 56.4K, Long term Osc1.jpg

>From what I have seen, Allan data has a major limitation for finding long term aging.
When you want to know what the aging will be over the next 10 years, 
Allan needs to have 30 or 40 years of data. Not the most practical way.

I have found for long term aging, taking data at around once per month generally does a good job, IF the osc is a "good osc"

Not sure if the attached under 60k plot will be seen.
It is plot of actual data for 3 of my Osc over a 5 to 9 year time span. (Ref was GPS)
The 10MHz SC10 shows a very consistent -8.3e-11 per day aging rate, after a two year 'warm up.'
The Dana 1992 high stability option shows a less consistent   +2e-10 per day rate, 
and the 5MHz, a small OXCO, has a Zero aging rate averaged over the last 6 years, and shows it can be pretty misleading to talk about just aging rate per year if the stability is not there.

warren

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