Re: [time-nuts] more ADEV tools

2014-03-20 Thread John C. Westmoreland, P.E.
Tom, Thank you for posting this. Regards, John Westmoreland On Mar 20, 2014 3:16 PM, "Tom Van Baak" wrote: > I wrote two new ADEV command line tools that some of you may be interested > in. > > adev4 calculates adev for a linear range, from tau to tau step tau. > adev5 calculates adev f

[time-nuts] Specs for Bliley NV47M1008?

2014-03-20 Thread Chris Albertson
I found a Bliley 10MHz OCXO model NV47M1008 Anyone here know about these? They seem to be available for about $11.00 or so. I looked around on the web and found specs for units that are "kind of like" this but not this exact model. You can see one at eBay #171274003103 Thanks, Chris Albertso

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Joe Leikhim
I just red somewhere that the last "ping" was the only one recorded by Inmarsat system, Pings up to that point were presumed to occur due to known reporting intervals. So there is no "track". The Inmarsat data is a red herring. The plane could have ditched into the water 85 minutes after the "

[time-nuts] more ADEV tools

2014-03-20 Thread Tom Van Baak
I wrote two new ADEV command line tools that some of you may be interested in. adev4 calculates adev for a linear range, from tau to tau step tau. adev5 calculates adev for a logarithmic range, from log(tau) to log(tau) step log(tau). The both calculate ADEV, MDEV, HDEV, or TDEV. For lar

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Poul-Henning Kamp
In message , "Stanley" writes: >Missing plane this ping was not lost why would others be lost ? This ping >was retrieved long after (days) it was received why would it be the only one ? The point is that they might have been able to do more precise pings in real-time, but now that it's on file i

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Stanley
Missing plane this ping was not lost why would others be lost ? This ping was retrieved long after (days) it was received why would it be the only one ? Stanley - Original Message - From: "Jim Lux" To: Sent: Thursday, March 20, 2014 11:05 AM Subject: Re: [time-nuts] Aircraft ping ti

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Jim Lux
On 3/20/14 8:53 AM, Poul-Henning Kamp wrote: In message <40280C39FE7D43C79313A1755BCAF58D@StanleyPC>, "Stanley" writes: Would think they have many other aircraft with known position stationary or moving with location known to help improve the estimate. They might have been able to do that whi

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Poul-Henning Kamp
In message <532ae780.4020...@earthlink.net>, Jim Lux writes: >On 3/20/14 12:07 AM, Poul-Henning Kamp wrote: >Is there a document that describes the system somewhere? I've seen >various descriptions of what's going on. Do they use timing or amplitude >measurements? It is a timing measurement an

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Poul-Henning Kamp
In message <40280C39FE7D43C79313A1755BCAF58D@StanleyPC>, "Stanley" writes: >Would think they have many other aircraft with known position stationary or >moving with location known to help improve the estimate. They might have been able to do that while the plane responded, but now that the plane

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Stanley
Would think they have many other aircraft with known position stationary or moving with location known to help improve the estimate. Stanley - Original Message - From: "Jim Lux" To: Sent: Thursday, March 20, 2014 8:05 AM Subject: Re: [time-nuts] Aircraft ping timing On 3/20/14 12:0

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Jim Lux
On 3/20/14 12:07 AM, Poul-Henning Kamp wrote: In message <279331507.5734621395275538874.JavaMail.actor@webmail5>, "iovane@inw ind.it" writes: My question was on what would be the expected accuracy of the circle's radius. Projected onto the surface of the earth, the uncertainty leaves a band a

Re: [time-nuts] Aircraft ping timing

2014-03-20 Thread Poul-Henning Kamp
In message <279331507.5734621395275538874.JavaMail.actor@webmail5>, "iovane@inw ind.it" writes: >My question was on what would be the expected accuracy of the circle's radius. Projected onto the surface of the earth, the uncertainty leaves a band approx 740km wide. -- Poul-Henning Kamp |