he news articles
about not betting on predictions of earth rotation. Also do not
forget McCarthy and Matsakis previously looking at the trend
https://insidegnss.com/will-we-have-a-negative-leap-second/
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Nat
ger being performed according to the ritual found in the
old log books of ships. If the calculations are now performed by
machines that are connected to telecom systems then all of the
nitty gritty details like DUT1 are probably in the computer.
--
Steve Allen WG
abulation would be reliably correct and do all the new
calculations still largely by hand, but most of all because their
other job was to provide legal time, and legal time was based on mean
solar time.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260
would
like UTC to stop having leap seconds. Many also allow that keeping
agreement with the earth in the long run is necessary, and that they
have no idea how to do that.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat
On Mon 2023-05-22T16:44:30+0200 Tony Finch hath writ:
> The prospect of a negative leap second is receding. The longer-term
> projected length of day from Bulletin A has been increasing towards 24h
> in recent months.
We can probably put a lot of the blame onto El Niño
--
St
ll smear.
This is like Eucla Australia setting their clocks the way they
please and daring the state government to do something about it.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street
On Mon 2023-03-20T00:55:26+ Seaman, Robert Lewis - (rseaman) hath writ:
> Much consternation will be feigned.
I will be making much use of the Michael Jackson eating popcorn gif
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences
lished.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.ucolick.org/~sla/ Hgt
today in leap second clickbait
https://supplycloset.supplies/2022/12/04/scientists-killed-the-leap-second-your-birthday-could-be-next/
Scientists Killed The Leap Second. Your Birthday Could Be Next.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260
job Sadler could not have dared
to describe the consequences of that in plain language.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06
what I choose it to mean--neither more nor less.'
'The question is,' said Alice, 'whether you CAN make words mean so
many different things.'
'The question is,' said Humpty Dumpty, 'which is to be master--
that's all.'
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--I
It was King Charles II who oversaw the inception of GMT.
If King Charles III lives as long as his mother then
he will oversee the conclusion of GMT.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High
On Sun 2022-11-20T13:23:32+ Kevin Birth hath writ:
> As far as I can tell, they were never successful, but it did keep them busy.
As Rod Serling wrote in The Big Tall Wish
You got to believe, Bolie.
But worse, because in this arena infidels will not be tolerated.
--
Steve Al
- UT1|, UTC had to change its name so that "polysemy" is avoided.
The funny part there is that UT1 does not mean what they think it means.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.
andable" solution to the political problem.
We do not have Hari Seldon theory to guage the psychohistory of
international alliances and how they will align with each other about
answering "What time is it?"
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observato
will handle that eventuality we need to be
openly considering the goals and implementation for that already.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046
Starting tomorrow the CGPM meets in Paris.
Resolution D says leap seconds must die.
CGPM will almost certainly approve that resolution.
https://www.nytimes.com/2022/11/14/science/time-leap-second.html
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260
rectly
was not yet technically possible. So the principals guarded their
speech into their retirement and death rather than advocate that
the leap second scheme was necessarily temporary and would need to
be replaced by something better.
--
Steve Allen WGS-84 (GPS)
UC
.org/~sla/leapsecs/seasonal.html
Is it not the case that references to the 19 year Metonic cycle
should be references to the 18.6 year Draconic cycle?
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 Hi
On Thu 2022-10-27T19:25:01-0700 Steve Allen hath writ:
> Levine, Tavella, and Milton have an upcoming article for Metrologia
> on the issue of leap seconds in UTC
>
> https://iopscience.iop.org/article/10.1088/1681-7575/ac9da5b
sorry, stray character appended to my cut and
Levine, Tavella, and Milton have an upcoming article for Metrologia
on the issue of leap seconds in UTC
https://iopscience.iop.org/article/10.1088/1681-7575/ac9da5b
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat
ry scarce and the
decadal fluctuations can take the value of Delta T far askew.
It takes a lot of work to recognize the useful descriptions.
The authors clearly also wanted to typset Amharic.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II,
/journees_pdf/SessionIV_1/LIU_JiaCheng.pdf
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.uco
semi/annual variation.
caveat is that plot may change before you all look at it.
The rotation of the earth's crust started accelerating right when
the CCIR decided that we should start using leap seconds.
karma
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB
by saying that the absence of
leap seconds will not be noticed for 2000 years.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa
added to UTC
https://files.igs.org/pub/resource/IGS_LeapSecond_Statement_Final.pdf
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Orolia has a 17 minute podcast about leap seconds
https://www.orolia.com/place-and-time-episode-3-the-leap-second-on-trial/
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street
URSI resolved about leap seconds
https://www.ursi.org/Publications/RadioScienceLetters/Volume3/RSL21-0047-final.pdf
It includes yet another passive voice redacted history of why they
were implemented.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260
istory it may
be the case that the celestial pole position wobble around the
predictable position is smaller when the rotation is accelerating.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High
to the number of elapsed SI seconds in the value of TAI.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064
I suspect nothing unusual is happening.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.uc
happened in late 2019 ?
2019 October is when USNO had to take their machines offline due to
new security requirements.
Those artifacts do not show at the ObsPM site
https://hpiers.obspm.fr/eop-pc/index.php?index=analysis=en
--
Steve Allen WGS-84 (GPS)
UCO/Lick
seconds are the perfect solution,
then abruptly continues about how that did not turn out to be true.
Near the end are sound snips from the 2015 ITU WRC delegates
deciding not to decide.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II
you want to compare
it with the value deemed as correct by other systems and required by
regulations you will have to check back later using another
interface."
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.9
us/1419239590532206597
which famously includes highlighted text from the section of the GPS
ICD that describes the need to do modulo arithmetic along with the URL
to the new version of the firmware.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural
lass is tough"
-- Barbie
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.
On Wed 2021-03-31T20:55:05-0700 Steve Allen hath writ:
> Judah Levine has begun a multi-part essay
> Everyday Time and Atomic Time
> https://nist.medium.com/everyday-time-and-atomic-time-part-one-9107b60fd9d0
Part 2 on music and frequency
https://nist.medium.com/everyday-time-and-atomic-
Judah Levine has begun a multi-part essay
Everyday Time and Atomic Time
https://nist.medium.com/everyday-time-and-atomic-time-part-one-9107b60fd9d0
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High
how long each day
has been according to the IERS bureau predictions and keeping a
sports statistics page on how the earth is doing.
They ran a year end article looking over the stats
https://www.timeanddate.com/time/earth-faster-rotation.html
--
Steve Allen WGS-84 (
ePlot.php?plotname=FinalsAllIAU2000A-LOD-BULA=9
The earth has accelerated so that it is spinning as fast as it was
during World War 2, and before that, the 1890s.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.9985
On Thu 2020-02-13T14:37:32+ Richard Langley hath writ:
> https://www.gpsworld.com/gps-backup-demonstration-projects-explained/
Crossing over a thread from time-nuts, the Wildwood eLoran should turn
on its transmitter some time this week.
--
Steve Allen WGS
C must have the same rate as the atomic time scales
>at the time -- the law even allows for several time scales.
What this means is that DHI was out of the legal time business, and
only PTB got to say what legal time was in Germany. The head of PTB
said only SI seconds.
--
Steve Allen
a position to insist again, but this whole arena seems well
described by Hector Barbossa telling Elizabeth Swan that the Pirate
Code is more like guidelines than actual rules. Welcome abord the
Black Pearl.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260
such improvements risk
discussions that might delve into the origins and purpose of UTC.
Fear means that ignorance must be maintained for the sake of hegemony.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
er
arrangement would have required effectively duplicating the
expertise and hardware of the BIH and finding a way to fund that.
Prompting governments or journalists to open an investigation into the
process of writing an international "technical" specification that was
violated in less
hority to cause all nations to change calendar days from mean solar
days to atomic days.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.0
ereafter condemned to conform to
specifications for a political compromise that gave no clues about its
underlying technical barrenness.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street
> Do you have a link and/or instructions? I can't see how to get a chart
> like that ...
http://hpiers.obspm.fr/eop-pc/index.php?index=C04=en
ask to remove tidal variations
Be nice, this web server is not robust enough to handle everyone
asking all at once.
--
Steve Allen
he Paris
bureau of IERS by requesting to remove the predictable tidal
variations that basically look like noise on the second plot here.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street
ns.
I think Microsoft was able to achieve this because Windows 10 is
designed to be continuously updated, including leap second
information, with new code from corporate headquarters. This would
not have been possible with an earlier version of Windows, nor with
most any other system.
--
is
configured with a negative number of leap seconds.
Fix:
Customer: Doctor it hurts when I do this.
IBM: Then don't do that.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1
ing that the estimates
of parameters should be expressed in GPS time rather than UTC time.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa C
ssued a bad software update.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.uc
look
like the image on this web page.
https://www.ucolick.org/~sla/leapsecs/BHsHn02p043.html
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.0
.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.ucolick.org/~sla/ Hgt +250 m
y 1 microsecond or 1 millisecond or 1 second,
depending on who you are and other latencies.
During the development of these regulations drafts were calling for
1 microsecond. The above results came after closed-session powwows
with folks from BIPM and other timing labs.
--
Steve Al
the
system is configured to run the old way without leap seconds) with
references to financial regulation agencies and Matsakis, Levine, Lombardi
at ION last year.
I am impressed that Microsoft has managed to go somewhere that POSIX
still refuses to go.
--
Steve Allen WGS
and did not do.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.ucolick.org/~s
the cesium gang had talked through and decided that Germany
was the expedient place to trigger the crisis.
But now I am trolling and asking:
Given that rubber seconds are illegal in Germany, is it legal to
use Google/Amazon NTP servers that provide smeared leap seconds?
--
Steve Allen
d to the urgent
series of CCIR working group meetings during 1968 and 1969 which
resulted in the proposal for leap seconds presented to the CCIR
assembly in 1970 February.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 L
On Mon 2019-01-21T15:32:27-0800 Paul Hirose hath writ:
> On 2019-01-16 1:35, Steve Allen wrote:
> > So starting 1970-01-01 DCF77 changed to broadcast Stepped Atomic Time
> > (SAT) with second markers that were 1 SI second apart except on
> > occasions when they were 1.2 SI s
lose look at the BIH annual reports to
see whether they indicate the acquisition of computing machinery.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046
lletin Horaire and pick out details. I suppose Guinot must have
agreed, and I think that is why the precise records of earth rotation
that the IERS inherited from the BIH begin at the transition from FK3
to FK4 on 1962-01-01.
--
Steve Allen WGS-84 (GPS)
UCO/Li
On Sun 2019-01-20T15:15:54+ Michael Deckers hath writ:
> On 2019-01-20 00:50, Steve Allen wrote:
> > I took a closer read and cross reference of the relevant
> > issues of Bulletin Horaire and finalized my web page.
> > The epoch at which TAI was set is definitely 19
A blogger takes note of how the IANA timezone project has been working
around the lack of new leap second information from US government
sources.
https://typesandtimes.net/2019/01/shutdown-warps-time
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260
of atomic time.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 https://www.ucolick.org/~sla/ H
On Wed 2019-01-16T00:56:19-0800 Steve Allen hath writ:
> The epoch of TAI, and LORAN, and GPS is 1961-01-01T20:00:00 UT2.
> Or maybe 1961-01-00 UT2.
I took a closer read and cross reference of the relevant
issues of Bulletin Horaire and finalized my web page.
The epoch at which TAI w
time scale
should be widely distributed by a robust scheme like the Domain Name
System and financial transactions, and those conversions should not
happen in critical places like the kernel but in other less-critical
places like libraries for locale and internationalization.
--
Steve Allen
On Wed 2019-01-16T22:24:46-0800 Paul Hirose hath writ:
> On 2019-01-16 1:35, Steve Allen wrote:
> >
> > Does it know that rubber seconds do not apply to timestamps in central
> > Europe made using DCF77 from 1970-01-01 to 1972-01-01?
>
> All my DLL knows is what's i
to the decision to have leap seconds.
So they were mostly broadcasting legal SI seconds, but too early in
history to evoke comparisons with "mostly harmless" and "mostly dead".
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260
On Wed 2019-01-16T09:03:26+ Poul-Henning Kamp hath writ:
> In message <20190116085619.ga23...@ucolick.org>, Steve Allen writes:
> >The epoch of TAI, and LORAN, and GPS is 1961-01-01T20:00:00 UT2.
> >Or maybe 1961-01-00 UT2.
> >
> >That is when the atomic time s
On Wed 2019-01-16T08:31:19+ Poul-Henning Kamp hath writ:
> In message <20190115205243.gb25...@ucolick.org>, Steve Allen writes:
> >That evokes a challenge for all time nuts that I can make based on
> >reading Bulletin Horaire.
> >
> >What is the epoch
seconds should use TAI as
given in rec 485. This betrays that not even the head of BIPM, who
define TAI, was aware that the ITU had withdrawn that rec two years
earlier.
As Captain said in Cool Hand Luke
Whut we've got heyah is failya tuh c'municate.
https://www.youtube.
the laws of all those nations, the answer
was to smile and say "Yes, everyone has agreed that this is the best
way to do it." Their job was not to say that the technical folks who
made that decision had already decided to disregard that in the systems
that they controlled, broadcast navigat
explain the difference between the two time scales.
That 1958 epoch is not the basis for the current incarnation of TAI.
Tonight I will scan the pages of Bulletin Horaire with the answer.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Ro
t; code. Or just use TAI for everything.
The trick is to find a source that will set a POSIX system to TAI, and
then to avoid the gotchas that happen when such a system interacts
with other POSIX systems.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natu
whenever there is a leap second and requires a
reboot. At the most recent summer leap second we were able to see a
star before and after, and there was a jump in the centering. The
software chose a different offset in the pointing for that night.
--
Steve Allen WG
voided discussing the technical problems in
public, redacted the transcripts of meetings that showed dissension,
and arranged forced votes to produce statements indicating that
various bodies agreed with the notion of leap seconds.
--
Steve Allen WGS-84 (GPS)
UC
ld love to find pointers to such strategies and code.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064
On Tue 2019-01-15T11:40:07-0800 Tom Van Baak hath writ:
> Also, presumably Python is based on POSIX? Does it use time_t or
> gmtime? Why did Jim's quick Python experiment fail?
Guido said that the mainline of Python would not support leap seconds.
--
Steve
m time and the civil time that has been specified in the
international agreements.
https://www.ucolick.org/~sla/leapsecs/right+gps.html
Note that there are caveats to this scheme.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room
, by which point the time signal broadcasts
were already regulated by cesium.
Plots of the seasonal variation expressions are here
https://www.ucolick.org/~sla/leapsecs/seasonal.html
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II
rating system.
That is a big step forward for leap seconds.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA
--
Yesterday John Dalziel gave a leap second talk at EMF Camp
https://www.emfcamp.org/line-up/2018/32-a-brief-history-of-leap-seconds
the video stream is here
https://mirrors.dotsrc.org/cdn.media.ccc.de/events/emf/2018/h264-hd/emf2018-32-eng-A_brief_history_of_Leap_Seconds_hd.mp4
--
Steve
s in the accompanying brief notes
about changes.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 http:/
-request-summary/fundamental-measurement-quantum-science-and
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064
s the same in all subsequent revisions.
CCIR and ITU-R documents mention UTC, UT[012], and TAI, and they refer
the reader to other agencies for definitions of those terms.
They do not mention local civil time,
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 N
all UTC offset timescales."
All local times are decided by local jurisdictions.
This is an issue long treated in the IANA tz mail list which
is a community effort that makes best effort to track every
little change made by every legislature and bureaucrat.
--
Steve Allen
e
hours was less harmful than taking the leap second in the middle of
the day. That might happen if some international regulatory or
scientific agency produced a recommendation saying that every nation
should do leap seconds at local midnight, but that just moves the
"hard to imagine"
itically expedient shortcut
which was full of unexplained technical complexities. It is not clear
who can remedy things.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3
nformance with UTC as defined.
Otherwise the old default configuration will have a second that lasts
2000 millis.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 45
the output of "System.DateTime.Now.ToString()" will be ahead by
one second of the local system time. (We are working with the .NET
framework team on this.)
In combination with the many steps that it takes to configure Windows
this sounds like there will be some really interesting results.
It will be interesting to see how many systems try to implement a
leap second at the end of this week.
Sites with broken leapseconds files are invisible beforehand, but
stuck NTP leap bits may be showing up already.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory
of the earlier form of
coordinated time in radio broadcasts.
--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064
On Wed 2018-03-21T08:51:37-0700 Steve Allen hath writ:
> Our robotic telescope with small FOV on the guider does better if it
> is given UT1 to 0.1 second. That telescope grabs the USNO predictions
> of EOP every week to update the pointing.
I'll add that I do not see any place wher
given UT1 to 0.1 second. That telescope grabs the USNO predictions
of EOP every week to update the pointing.
--
Steve Allen<s...@ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street
inkler then stopped discussion
about the CCIR and allowed "free discussion" which is not recorded.
--
Steve Allen<s...@ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Stree
://www.ucolick.org/~sla/leapsecs/twokindsoftime.html
This is one of the series of documents produced starting in 1948 and
proceeding through the next 20 years where astronomers explained that
two kinds of time would be needed to satisfy all applications.
--
Steve Allen<s...@ucolick.
?
If not, that begs the question of why not?
--
Steve Allen<s...@ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064
statement to Working Parties 4A, 4B, 4C, 5A, 5B, 5C, 5D,
6A, 6B, 6C, 7B, 7C and 7D
which can be supposed as an alert that they all might want to read
the working document.
It is too soon for detailed clues about what just happened at
CIPM and WP7A, but things are clearly moving along.
--
S
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