
	Where results make sense

Topic: UT1

Related Topics

DUT

Time zone

Sandford Fleming

QMU

NATO phonetic alphabet

P

Victor McLaglen

1872

68k

1955 in film

415

In the News (Fri 11 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Encyclopedia: UT1 (Site not responding. Last check: 2007-10-22)
		On November 2, 1868 New Zealand officially adopted a standard time to be observed nationally, and was perhaps the first country to do so.
		Nowadays, UT in relation to International Atomic Time (TAI) is determined by Very Long Baseline Interferometry (VLBI) observations of distant quasars, which method has an accuracy of micro-seconds.
		Most sources of time and celestial coordinate system standards use UT1 as the default meaning of UT, though occasionally UTC may be implied.
	www.nationmaster.com /encyclopedia/UT1 (1052 words)

	Astronomical Times
		UT1 is continuous, and UTC is incremented or decremented by integer seconds to stay witin 0.9 seconds of UT1.
		Since UT1 is now determined from observations from an ensemble of obsevatories, often as part of VLBI interferometers, the practical use of UT0 has dwindled.
		It might seem strange that UT1, a solar time, is determined by measuring the earth's rotation with respect to distant celestial objects, and GMST, a sidereal time, is derived from it.
	www.cv.nrao.edu /~rfisher/Ephemerides/times.html (2060 words)

	[No title]
		UT1 is related to the Greenwich mean sidereal time (GMST) by a conventional relationship (Aoki et al., 1982); it gives access to the direction of the IRM in the ICRF, reckoned around the CEP axis.
		UT1, hence D and Omega, are subject to variations due to zonal tides.
		UT1R, DR, and OmegaR are the values of UT1, D, and Omega corrected for the short-term part of the model, i.e., the 41 components with periods under 35 days.
	image.gsfc.nasa.gov /poetry/activity/earthr2.html (4113 words)

	NIST Time Scale Data Archive
		Its purpose is to keep the UTC time scale within ±0.9 s of the UT1 astronomical time scale, which changes slightly due to variations in the rotation of the Earth.
		Leap seconds are used to keep the difference between UT1 and UTC to within ±0.9 s.
		The current value of UT1 - UTC is called the DUT1 correction and is obtained from the Bureau International des Poids et Mesures (BIPM).
	tf.nist.gov /pubs/bulletin/leapsecond.htm (368 words)

	EOP sigmas
		The differences were produced for all pairs of the of experiments in 1997.0-2001.0 with the differences in the middle epoch of the sessions less than 12 hours.
		UT value and sigmas of 24 hours experiment was propagated to the time epoch of the Intensive using UT1, UT1 rate, sigmas and correlations between UT1 and UT1 rate.
		UT1 values from intensives and 24 hour experiments were considered as uncorrelated.
	gemini.gsfc.nasa.gov /pet/discussion/eop_sigmas/eop_sigmas.html (175 words)

	UNIVERSAL TIME UT1 (Site not responding. Last check: 2007-10-22)
		UT1 is related to the Greenwich mean sidereal time (GMST) by a conventional relationship (Aoki et al., 1982) ; it gives access to the direction of the (IERS Reference Meridian) in the (ICRS), reckoned around the CEP axis.
		The instability of TAI is about 6 orders of magnitude smaller than that of UT1.
		Models for the tidal variations of UT1 are available in the IERS Conventions (1996).
	hpiers.obspm.fr /webiers/general/earthor/utlod/UT1.html (396 words)

	( TI - UT1 )
		This means that TI (atomic time) and UT1 (earth rotation time-of-day) would begin to differ, roughly quadratically over long term, as the rotation of the earth is slowed.
		Until the 1920s no clock was as stable as earth rotation, and as a result it was broadly understood to be unavoidable that all clocks intended to keep Universal Time (and thus civil time) needed to be reset regularly to agree with earth rotation as established by astronomical observations.
		Ideally UT1 is the successor of UT which is the the successor of GMT which is the result of Simon Newcomb's expressions for the fictitious mean sun.
	www.ucolick.org /~sla/leapsecs/dutc.html (7380 words)

	SLA_GMSTA - UT to GMST (extra precision) (Site not responding. Last check: 2007-10-22)
		Conversion from universal time UT1 to Greenwich Mean sidereal time, with rounding errors minimized.
		Either of the two arguments could, for example, be zero and the entire date+time supplied in the other.
		Compared with sla_GMST, the extra numerical precision delivered by the present routine is unlikely to be important in an absolute sense, but may be useful when critically comparing algorithms and in applications where two sidereal times close together are differenced.
	star-www.rl.ac.uk /star/docs/sun67.htx/node117.html (173 words)

	Time zone - Wikipedia, the free encyclopedia
		However, as a mean solar time, GMT, or UT1 as it is also now known, is defined by the rotation of the Earth, which is not constant in rate.
		Initially, the rate of atomic clocks was annually changed or steered to closely match GMT, but effective 1 January 1972 the rate of atomic clocks became fixed, and time steps (leap seconds) replaced the rate changes.
		However, DUT can be added to UTC to correct it to within 50 ms of UT1, reducing the error to only 20 m.
	en.wikipedia.org /wiki/Time_zone (3317 words)

	ut1.html (Site not responding. Last check: 2007-10-22)
		UT1 is Universal Time (UT1 = UT), also a time scale with no leap seconds but whose standard unit is the solar day, i.e.
		Line 2 gives the format for reading the file, a data type flag, the Julian date of the first and last entry, the number of entries per line, the interval between entries (days), and the scaling factor all entries.
		The last number on each line is the number of TAI - UT1 values on that line.
	www.ngs.noaa.gov /GRD/GPS/DOC/arc/ut1.html (237 words)

	UNIVERSAL TIME UT1
		The origin of TAI is such that UT1-TAI ~ 0 on 1958 January 1, but the beginning of the TAI measurements goes back july 1955.
		Models for the tidal variations of UT1 are available in the IERS Conventions (2000).
		Fortran functions for computing these effects are available in this environment or in the IERS Conventions 1996 edited by the US Naval Observatory.
	hpiers.obspm.fr /eop-pc/earthor/ut1lod/UT1.html (434 words)

	ut1 - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "ut1" is defined.
		UT1 : DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations [home, info]
		Words similar to ut1: gmt, ut, greenwich mean time, greenwich time, universal time, more...
	www.onelook.com /?w=ut1&ls=a (112 words)

	Universal Time (Site not responding. Last check: 2007-10-22)
		In astronomical and navigational usage, UT often refers to a specific time called UT1, which is a measure of the rotation angle of the Earth as observed astronomically.
		One can think of UT1 as being a time determined by the rotation of the Earth, over which we have no control, whereas UTC is a human invention.
		When it appears that the difference between the two kinds of time may approach this limit, a one-second change called a "leap second" is introduced into UTC.
	aa.usno.navy.mil /faq/docs/UT.html (683 words)

	Universal Time: UTC, UT1
		It does so even though the Earth's rotation is slightly variable (due to large scale movements of water and atmosphere among other things) by occasionally introducing a leap second.
		It is needed for computing the sidereal time, an essential part of pointing a telescope at a celestial source.
		To obtain UT1, you have to look up the value of UT1-UTC for the date concerned in tables published by the International Earth Rotation Service; this quantity, kept in the range
	www.hartrao.ac.za /nccsdoc/slalib/sun67.htx/node219.html (451 words)

	[No title]
		In order to reduce the frequency of introducing discontinuities and still keep UTC coordinated with UT1, leap seconds will be dropped and shifts of one hour, theoretically first occurring around the year 2600, will be substituted.
		These “leap hour” shifts would effectively make UTC a uniform time scale for the foreseeable future without noticeable environmental or psychological effects as the general public has already become accustomed, in the use of daylight savings time, to one hour shifts in UTC, twice a year, relative to mean solar time.
		ANNEX 1 Time scales A Universal time (UT1) UT1 is the time scale determined from astronomical observations of the rotation of the Earth with respect to the International Celestial Reference System.
	www.fcc.gov /ib/sand/irb/weritacrnc/archives/nc1893wp7a/1.doc (1234 words)

	Coordinated Universal Time article - Coordinated Universal Time seconds atomic time UT1 Time zones Greenwich Mean Time ... (Site not responding. Last check: 2007-10-22)
		Coordinated Universal Time or UTC, also sometimes referred to as "Zulu time", the basis for civil time, differs by an integral number of seconds from atomic time and a fractional number of seconds from UT1.
		UTC is kept within 0.9 s of UT1; leap seconds are added (or, theoretically, subtracted) at the end of a month as necessary.
		To date all such adjustments have been positive, adding a leap second at 23:59:60.
	www.what-means.com /encyclopedia/UTC (656 words)

	Anyone for Mixed Akimbo in UT1?
		Well, The Collective was doing mixed akimbo before anyone even introduced akimbo in 2003, and I decided to set aside a few hours and see what I could do.
		I don't have any screens (I tried to upload to an old website, and have spent the last two hours cleaning off spyware - dugh) but if Team Unpfhorgiven wants to integrate any of this script - feel free & drop me a line.
		I don't have any : screens (I tried to upload to an old website, and have : spent the last two hours cleaning off spyware - dugh) : but if Team Unpfhorgiven wants to integrate any of : this script - feel free and drop me a line.
	resurrection.bungie.org /forum/index.pl?noframes;read=7596 (550 words)

	UT1 time series predictor
		This facility, created by the IERS GGFC Special Bureau for Tides, allows users to predict tidal variations in Earth's rotation rate based on the harmonic constants of 8 short-period (diurnal and semidiurnal) tidal constituents.
		The default harmonic constants are for UT1 variations implied by the ocean tide model that was adopted for the IERS 1996 Conventions.
		Moreover, it is clear that this facility can be used to predict ANY tidal time series, e.g., sea level, gravity, etc., not just UT1 variations.
	bowie.gsfc.nasa.gov /ggfc/tides/ut1predict.html (409 words)

	UT1 Internet, Your Quality Internet and computer services provider (Site not responding. Last check: 2007-10-22)
		UT1 Internet, Your Quality Internet and computer services provider
		Internet has been serving the Uintah Basin for over 4 years with the highest quality Internet services available.
		Whether it is a 56k dial up connection or a blazing fast burstable wireless connection we can help.
	www.ut1.net (62 words)

	DriverHeaven.net - any ut1 european playas here?
		Hay, just wondered if there were any UT1 european players here.
		I play lots of UT1 and have done for the past 2 years.
		I play for SoH who are currently in the finals of the Clanbase Opencup Fall 2003.
	www.driverheaven.net /showthread.php?t=33483 (107 words)

	[No title] (Site not responding. Last check: 2007-10-22)
		Pitores is a semi realistic TechIndustrial texture pack containing around 70 textures of 1024 resolution and is free for all non commercial use as long as you credit me.
		The pack is avaiable in a JPG gallery, a UT1 UTX, a UT2004 UTX and a HalfLife 2 VTF directory.
		The pack has a few dozen 128 and 256 UT1 textures with mask's, detail textures and animated water set up.
	www.planetunreal.com /phalanx/textures.htm (714 words)

	own-age.com / videos -> Video details for PREVIEW : #UT1 1vs1 custom maps
		You are browsing: own-age.com / Videos -> PREVIEW : #UT1 1vs1 custom maps
		#UT1 1vs1 custom maps cup movie run on CB.
		64.8mb, 2mn42 of UT1 frags very hight quality (800/600 30fps)
	www.own-age.com /vids/video.aspx?id=849 (136 words)

	CGSB PT2, MT2, UT1
		NDT.org : Resume Database : CGSB PT2, MT2, UT1
		Field inspection and measurements of welding requirements, NDT inspection and evaluation according with the specified procedures.
		All Contents Copyright (c) 2005 Bongiovanni Research & Technology, Inc.
	www.ndt.org /resume.asp?ObjectID=6843 (386 words)

	DriverHeaven.net - UT1 Custom Maps Movie released!
		To celebrate the success of last seasons #UT1 Custom Map Cup Movie has been released featuring all the frags from all of the participants.
		UT1 community is quite close and so we all know one another.
		If anyone else would like some more posting let me know, I know some damn good ones!
	www.driverheaven.net /showthread.php?t=35588 (217 words)

	A Case for Created Time
		It is observed as the diurnal motion of stars or extraterrestrial radio sources.
		Coordinated Universal Time (UTC) differs from TAI by an integral number of seconds.
		UTC is kept within 0.9 seconds of UT1 by the introduction of one-second steps to UTC, the "leap second." To date these steps have always been positive.
	www.creation-answers.com /time.htm (14363 words)

	UT1 And New Patches? - www.ezboard.com
		I have heard that Epic has given some MOD makers the code for UT1 and the permission to keep making patches and such for UT1.
		I remember catching word of the site for it but I lost the link.
		Does anyone know where I can accesss the site and new patches that are being made for UT1?
	p220.ezboard.com /fgibjunkiesfrm8.showMessage?topicID=70.topic (65 words)

	Gamma Problem finally solved for UT1? - www.ezboard.com
		4.6 is out I hear that there is no gamma prob in UT1 anymore - is that true?
		I have NO clue what the bug is. I've been playin' UT99 all along, never once had a problem with something being 'too bright' or whatever this bug causes.
		ditto, never seen any gamma problem whatsoever on UT1
	p197.ezboard.com /fx3dfxfrm1.showMessage?topicID=17894.topic (764 words)

	Wrestling Games Zone Forums - View Profile: Hybrid UT1
		Wrestling Games Zone Forums - View Profile: Hybrid UT1
		Send a message via email to Hybrid UT1
		Hybrid UT1 is not a member of any public groups
	www.wrestlinggameszone.com /forum/member.php?u=230 (37 words)

Try your search on: Qwika (all wikis)