Warner Losh wrote:
TAI and UTC have a fixed offset relationship, it is true. However, UTC is
computed in real time (with several varieties to choose from if you care
about the nano-seconds), but TAI is a retrospective timescale that's not
computed until after the fact.
These two notions conflict:
Someone has a cold or cold feet?
-- Richard Langley
Sent from my iPod Touch
Begin forwarded message:
From: sciencewise-erc
enquir...@sciencewise-erc.org.ukmailto:enquir...@sciencewise-erc.org.uk
Date: November 3, 2014 5:20:46 AM AST
To: Nanasha A Oyofo
On Nov 3, 2014, at 3:35 AM, Zefram zef...@fysh.org wrote:
Warner Losh wrote:
TAI and UTC have a fixed offset relationship, it is true. However, UTC is
computed in real time (with several varieties to choose from if you care
about the nano-seconds), but TAI is a retrospective timescale that's
On 11/03/2014 10:13 AM, Warner Losh wrote:
UTC realized from the labs of NIST will have a
small offset from the UTC realized from NRAO.
Did you mean USNO where you typed NRAO?
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On Nov 3, 2014, at 8:19 AM, Greg Hennessy greg.henne...@cox.net wrote:
On 11/03/2014 10:13 AM, Warner Losh wrote:
UTC realized from the labs of NIST will have a
small offset from the UTC realized from NRAO.
Did you mean USNO where you typed NRAO?
Yes. My bad.
Warner
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Hi Micheal,
On 2014-11-03 02:43 AM, michael.deckers via LEAPSECS wrote:
On 2014-10-31 17:39, Brooks Harris wrote:
Yes. Its primary timescale, sometimes called PTP Time, more
properly the PTP
Timescale, is a TAI-like counter (uninterrupted incrementing count of
seconds). Note its origin, or
On Nov 3, 2014, at 11:11 AM, Brooks Harris bro...@edlmax.com wrote:
CAUTION about the PTP Epoch. Its not just nitpicking”.
...
We've been advised by PTP experts that A) yes, its confusing, and B) most
implementations use a integral-second interpretation, as in Table B.1. I
understand the
On 2014-11-03 02:19 PM, Warner Losh wrote:
On Nov 3, 2014, at 11:11 AM, Brooks Harris bro...@edlmax.com wrote:
CAUTION about the PTP Epoch. Its not just nitpicking.
...
We've been advised by PTP experts that A) yes, its confusing, and B) most implementations use a integral-second
On Nov 3, 2014, at 12:53 PM, Brooks Harris bro...@edlmax.com wrote:
On 2014-11-03 02:19 PM, Warner Losh wrote:
On Nov 3, 2014, at 11:11 AM, Brooks Harris bro...@edlmax.com
wrote:
CAUTION about the PTP Epoch. Its not just nitpicking”.
...
We've been advised by PTP experts that A)
On 2014-11-03 03:04 PM, Warner Losh wrote:
On Nov 3, 2014, at 12:53 PM, Brooks Harris bro...@edlmax.com wrote:
On 2014-11-03 02:19 PM, Warner Losh wrote:
On Nov 3, 2014, at 11:11 AM, Brooks Harris bro...@edlmax.com
wrote:
CAUTION about the PTP Epoch. Its not just nitpicking.
...
On Nov 3, 2014, at 1:37 PM, Brooks Harris bro...@edlmax.com wrote:
On 2014-11-03 03:04 PM, Warner Losh wrote:
On Nov 3, 2014, at 12:53 PM, Brooks Harris bro...@edlmax.com
wrote:
On 2014-11-03 02:19 PM, Warner Losh wrote:
On Nov 3, 2014, at 11:11 AM, Brooks Harris
On 3 Nov, 2014, at 07:13 , Warner Losh i...@bsdimp.com wrote:
TAI is a paper clock. You can convert your time stamps you get today from
your atomic clock to TAI time stamps once the offsets (phase and frequency)
have been determined for your clock by comparing it to all the others in
the data
On Nov 3, 2014, at 3:03 PM, Dennis Ferguson dennis.c.fergu...@gmail.com wrote:
On 3 Nov, 2014, at 07:13 , Warner Losh i...@bsdimp.com wrote:
TAI is a paper clock. You can convert your time stamps you get today from
your atomic clock to TAI time stamps once the offsets (phase and frequency)
On 2014-11-03 04:50 PM, Warner Losh wrote:
On Nov 3, 2014, at 1:37 PM, Brooks Harris bro...@edlmax.com wrote:
On 2014-11-03 03:04 PM, Warner Losh wrote:
On Nov 3, 2014, at 12:53 PM, Brooks Harris bro...@edlmax.com
wrote:
On 2014-11-03 02:19 PM, Warner Losh wrote:
On Nov 3, 2014, at
On 2014-11-03 01:58, Warner Losh wrote:
A common grid is an artificial construct that measurements from
different clocks can be interpolated to. The top of second (or other
phase) measurements place place the top of second in time. Interpolating
to a grid places the time of each time scale
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