BULLETIN B 201
(IAU 2000)
4 november 2004
==============================================================================
Following IAU Conventions 2000, IERS provides new products dX, dY, celestial
pole offsets with respect to the new IAU2000A Precession-Nutation theory.
The present Bulletin B version includes the celestial pole offsets dX, dY:
dX = X_obs - X_IAU2000A and dY = Y_obs - Y_IAU2000A
where
X_obs, Y_obs are the observed coordinates of the Celestial Intermediate
Pole (CIP) in the Geocentric Celestial Reference System, and
X_IAU2000A, Y_IAU2000A are the celestial pole coordinates provided by using
the IAU2000A Precession-Nutation theory.
The current Bulletin B including (dpsi,deps)_1980 will be maintained until
December 2004.
For more details refer to IERS Messages 38, on IAU 2000 Resolution Compliancy
Information.
==============================================================================
Contents are described in the Explanatory Supplement available at
http://hpiers.obspm.fr/eop-pc/
1 - EARTH ORIENTATION PARAMETERS (IERS evaluation).
The values in this section are samplings of section 2 given at five-day
intervals.
Date MJD x y UT1R-UTC UT1R-TAI dX dY
2004 " " s s 0.001" 0.001"
(0h UTC)
Final Bulletin B values.
SEP 1 53249 .15226 .49571 -.452625 -32.452625 .19 .11
SEP 6 53254 .16392 .48475 -.452579 -32.452579 .07 -.43
SEP 11 53259 .17387 .47536 -.451572 -32.451572 .27 .12
SEP 16 53264 .18221 .46382 -.451984 -32.451984 .13 -.09
SEP 21 53269 .18984 .45209 -.452619 -32.452619 .24 -.10
SEP 26 53274 .19600 .44272 -.453338 -32.453338 .27 -.48
OCT 1 53279 .19851 .43151 -.454473 -32.454473 .03 -.29
Preliminary extension, to be updated weekly in Bulletin A and monthly
in Bulletin B.
OCT 6 53284 .20194 .41912 -.456819 -32.456819 .15 -.29
OCT 11 53289 .20330 .40741 -.459649 -32.459649 .24 -.25
OCT 16 53294 .20540 .39459 -.462524 -32.462524 .20 .24
OCT 21 53299 .20612 .38462 -.464796 -32.464796 .32 -.27
OCT 26 53304 .20547 .37455 -.466717 -32.466717 .00 .00
OCT 31 53309 .20697 .36357 -.469257 -32.469257 .00 .00
NOV 5 53314 .20829 .35247 -.471916 -32.471916 .00 .00
NOV 10 53319 .20676 .34141 -.474449 -32.474449 .00 .00
NOV 15 53324 .20396 .33054 -.476906 -32.476906 .00 .00
NOV 20 53329 .20021 .31995 -.479256 -32.479256 .00 .00
NOV 25 53334 .19561 .30971 -.481514 -32.481514 .00 .00
NOV 30 53339 .19023 .29988 -.483635 -32.483635 .00 .00
DEC 5 53344 .18409 .29050 -.485619 -32.485619 .00 .00
DEC 10 53349 .17727 .28165 -.487488 -32.487488 .00 .00
DEC 15 53354 .16979 .27336 -.489220 -32.489220 .00 .00
DEC 20 53359 .16172 .26567 -.490837 -32.490837 .00 .00
DEC 25 53364 .15309 .25862 -.492355 -32.492355 .00 .00
DEC 30 53369 .14398 .25225 -.493790 -32.493790 .00 .00
Note. In UT1R, the effects of zonal tides with periods shorter than 35 days
are removed ; UT1-UT1R (smaller than 0.0025s in absolute value) should be
added after quadratic interpolation of UT1R. Section 2 of this Bulletin gives
the daily interpolation of x, y, UT1, duration of day, dX, and dY.
IERS, B 201 (2)
2 - SMOOTHED VALUES OF x, y, UT1, D, dX, dY (IERS EVALUATION)
at one-day intervals. For smoothing characteristics, see Table2 in the
explanatory supplement. The reference system is described in the 2003
IERS Annual Report.
2004 MJD x y UT1-UTC UT1-UT1R D dX dY
(0 h UTC) " " s ms ms 0.001" 0.001"
SEP 1 53249 .15226 .49571 -.453170 -.544 .602 .19 .11
SEP 2 53250 .15495 .49379 -.453738 -1.065 .466 .12 -.03
SEP 3 53251 .15710 .49216 -.454069 -1.437 .290 .13 -.19
SEP 4 53252 .15929 .48953 -.454305 -1.599 .066 .14 -.32
SEP 5 53253 .16167 .48755 -.454202 -1.533 -.240 .12 -.39
SEP 6 53254 .16392 .48475 -.453837 -1.257 -.525 .07 -.43
SEP 7 53255 .16529 .48267 -.453171 -.817 -.715 .05 -.44
SEP 8 53256 .16767 .48077 -.452430 -.274 -.780 .08 -.27
SEP 9 53257 .16934 .47890 -.451636 .298 -.779 .14 -.12
SEP 10 53258 .17194 .47699 -.450898 .823 -.657 .20 -.01
SEP 11 53259 .17387 .47536 -.450345 1.227 -.393 .27 .12
SEP 12 53260 .17636 .47300 -.450128 1.452 -.150 .32 .14
SEP 13 53261 .17794 .47078 -.450052 1.460 .147 .32 .02
SEP 14 53262 .17983 .46844 -.450417 1.246 .479 .27 -.10
SEP 15 53263 .18108 .46608 -.450992 .845 .632 .19 -.13
SEP 16 53264 .18221 .46382 -.451647 .336 .671 .13 -.09
SEP 17 53265 .18381 .46138 -.452295 -.170 .642 .14 -.08
SEP 18 53266 .18493 .45904 -.452894 -.561 .451 .15 -.10
SEP 19 53267 .18669 .45686 -.453175 -.745 .153 .17 -.12
SEP 20 53268 .18794 .45447 -.453198 -.685 -.084 .20 -.12
SEP 21 53269 .18984 .45209 -.453027 -.408 -.233 .24 -.10
SEP 22 53270 .19168 .44987 -.452769 .004 -.291 .28 -.13
SEP 23 53271 .19357 .44800 -.452488 .427 -.271 .29 -.22
SEP 24 53272 .19498 .44650 -.452267 .735 -.082 .28 -.37
SEP 25 53273 .19561 .44478 -.452349 .829 .200 .28 -.47
SEP 26 53274 .19600 .44272 -.452670 .668 .432 .27 -.48
SEP 27 53275 .19628 .44077 -.453193 .281 .649 .22 -.39
SEP 28 53276 .19720 .43853 -.453931 -.243 .803 .12 -.26
SEP 29 53277 .19795 .43636 -.454758 -.786 .770 .02 -.23
SEP 30 53278 .19813 .43398 -.455436 -1.229 .612 -.02 -.27
OCT 1 53279 .19851 .43151 -.455960 -1.487 .474 .03 -.29
OCT 2 53280 .19908 .42910 -.456379 -1.517 .284 .14 -.20
OCT 3 53281 .19996 .42656 -.456535 -1.321 .111 .22 -.10
OCT 4 53282 .20071 .42406 -.456618 -.934 .046 .22 -.08
OCT 5 53283 .20136 .42184 -.456650 -.417 .009 .16 -.16
OCT 6 53284 .20194 .41912 -.456662 .157 .056 .15 -.29
OCT 7 53285 .20275 .41677 -.456789 .710 .120 .20 -.32
OCT 8 53286 .20314 .41428 -.456925 1.167 .164 .28 -.28
OCT 9 53287 .20360 .41197 -.457136 1.464 .320 .29 -.19
OCT 10 53288 .20355 .41008 -.457578 1.555 .547 .26 -.18
OCT 11 53289 .20330 .40741 -.458231 1.418 .770 .24 -.25
OCT 12 53290 .20344 .40519 -.459107 1.067 .983 .21 -.29
OCT 13 53291 .20365 .40262 -.460170 .561 1.105 .28 -.28
OCT 14 53292 .20391 .39971 -.461277 .000 1.113 .31 -.14
OCT 15 53293 .20457 .39710 -.462352 -.489 1.035 .29 .07
OCT 16 53294 .20540 .39459 -.463315 -.791 .796 .20 .24
OCT 17 53295 .20590 .39263 -.463932 -.838 .420 .14 .26
OCT 18 53296 .20602 .39022 -.464169 -.634 .136 .15 .11
OCT 19 53297 .20611 .38869 -.464240 -.256 -.006 .23 -.13
OCT 20 53298 .20590 .38623 -.464202 .175 -.006 .27 -.27
OCT 21 53299 .20612 .38462 -.464271 .526 .147 .32 -.27
OCT 22 53300 .20602 .38230 -.464523 .692 .352 .36 -.17
OCT 23 53301 .20601 .38077 -.464981 .623 .564 .00 .00
OCT 24 53302 .20560 .37875 -.465638 .329 .747 .00 .00
OCT 25 53303 .20507 .37682 -.466445 -.123 .867 .00 .00
OCT 26 53304 .20547 .37455 -.467350 -.633 .922 .00 .00
OCT 27 53305 .20584 .37249 -.468276 -1.089 .882 .00 .00
OCT 28 53306 .20675 .36997 -.469108 -1.398 .655 .00 .00
IERS, B 201 (3)
3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS
(IERS evaluation).
Raw normal values Uncertainties
2004 MJD x y UT1-UTC dX dY x y UT1 dX dY
(0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001"
SEP 1 53249 .15234 .49571 -.453167 .126 .062 .02 .02 .02 .05 .05
SEP 6 53254 .16393 .48475 -.453836 .003 -.364 .02 .03 .02 .06 .06
SEP 11 53259 .17386 .47535 -.450343 .301 .047 .02 .02 .03 .05 .05
SEP 16 53264 .18219 .46383 -.451647 .132 -.062 .02 .02 .02 .03 .03
SEP 21 53269 .18983 .45208 -.453027 .166 -.037 .02 .02 .03 .04 .04
SEP 26 53274 .19600 .44271 -.452670 .272 -.438 .02 .02 .03 .03 .04
OCT 1 53279 .19850 .43151 -.455964 .051 -.346 .02 .02 .04 .05 .06
OCT 6 53284 .20193 .41912 -.456662 .168 -.259 .01 .01 .02 .02 .02
OCT 11 53289 .20329 .40740 -.458225 .215 -.147 .02 .02 .03 .04 .04
OCT 16 53294 .20539 .39460 -.463315 .215 .246 .02 .02 .03 .07 .09
OCT 21 53299 .20611 .38460 -.464271 .322 -.275 .01 .01 .02 .02 .02
OCT 26 53304 .20547 .37454 -.467341 - - .02 .02 .04 - -
4 - DURATION OF THE DAY AND ANGULAR VELOCITY OF THE EARTH (IERS evaluation).
The data of this section are smoothed, with the same characteristics as
UT1R in section 1. They are corrected for the effects of zonal tides with
periods up to 35 days. Section 2 gives the daily interpolation of D.
Date (0h UTC) DR OmegaR
2004 MJD s (microrad/s)
SEP 1 53249 .00005 72.921 15143
SEP 6 53254 -.00016 15160
SEP 11 53259 -.00008 15153
SEP 16 53264 .00015 15134
SEP 21 53269 .00013 15135
SEP 26 53274 .00015 15134
OCT 1 53279 .00033 15119
5 - INFORMATION ON TIME SCALES
No leap second was introduced in UTC on 30 June 2004.
No leap second will be introduced in UTC on 31 December 2004.
All information concerning time scales : announcements of the
leap seconds (Bulletin C) and of the value of DUT1 (Bulletin D)
can be found in our web/ftp site :
World Wide Web : http://hpiers.obspm.fr
Anonymous ftp : hpiers.obspm.fr or 145.238.100.28
IERS, B 201 (4)
6 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES
This section gives the average precision of the individual series contri-
buting to the combination and their average agreement with it. The periods
covered start at the beginning of the first month in Section 1 and end with
the last available value in the individual series considered.
Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dX, dY.
--------------------------------------------------------------------------------
EOP series Mean formal uncertainty
Periods covered Weighted RMS agreement with Bulletin B
--------------------------------------------------------------------------------
x y UT D dX dY Data Number
VLBI
EOP(AUS) 1 R 01 .12 .10 .05 - - - 15
53251.27 to 53300.27 .38 .37 .05 - - -
EOP(BKG) 3 R 04 .12 .09 .05 - - - 16
53251.27 to 53300.27 .26 .17 .09 - - -
EOP(BKG) 3 R 02 - - .13 - - - 46
53249.79 to 53303.79 - - .20 - - -
EOP(GSFC) 4 R 02 .11 .13 .06 - - - 17
53251.27 to 53300.27 .20 .12 .07 - - -
EOP(GSFC) 4 R 01 - - .17 - - - 33
53249.79 to 53303.79 - - .17 - - -
EOP(IAA) 3 R 04 .11 .09 .04 - .17 .07 13
53251.27 to 53300.27 .18 .10 .08 - .14 .06
EOP(IAA) 3 R 03 - - .14 - - - 49
53249.79 to 53303.79 - - .16 - - -
EOP(SPBU) 3 R 03 .36 .39 .21 - - - 12
53251.27 to 53293.27 .16 .12 .05 - - -
EOP(SPBU) 2 R 01 - - .19 - - - 31
53249.79 to 53299.79 - - .19 - - -
EOP(MAO) 3 R 01 .12 .10 .04 - .18 .07 12
53251.28 to 53286.30 .31 .13 .09 - .27 .17
EOP(USNO) 4 R 01 .09 .08 .03 - - - 15
53251.27 to 53300.27 .17 .11 .08 - - -
EOP(IVS) 0 R 01 .08 .07 .03 - - - 11
53251.00 to 53286.00 .18 .13 .10 - - -
GPS
EOP(CODE) 98 P 01 .01 .01 - .28 - - 57
53249.50 to 53305.50 .04 .05 - .25 - -
EOP(EMR) 96 P 03 .03 .03 - .04 - - 57
53249.50 to 53305.50 .06 .12 - .60 - -
EOP(ESOC) 96 P 01 .02 .02 - .07 - - 57
53249.50 to 53305.50 .06 .06 - .69 - -
EOP(GFZ) 96 P 02 .01 .01 - .01 - - 57
53249.50 to 53305.50 .04 .05 - .32 - -
EOP(IAA) 1 P 01 .03 .03 - .06 - - 57
53249.50 to 53305.50 .18 .18 - .58 - -
EOP(JPL) 96 P 03 .02 .02 - .14 - - 57
53249.50 to 53305.50 .04 .05 - .33 - -
EOP(NOAA) 96 P 01 .01 .01 - .02 - - 57
53249.50 to 53305.50 .23 .19 - .37 - -
EOP(SIO) 96 P 01 .05 .05 - .12 - - 57
53249.50 to 53305.50 .05 .06 - .61 - -
EOP(IGS F)95 P 02 .02 .03 .08 .04 - - 46
53249.50 to 53294.50 .07 .08 .26 .18 - -
EOP(IGS R)96 P 02 .03 .03 .18 .05 - - 57
53249.50 to 53305.50 .10 .07 .45 .21 - -
EOP(IERS) 97 P 01 .03 .04 .19 .12 - - 57
53249.50 to 53305.50 .03 .04 .29 .22 - -
SLR
EOP(ASI) 3 L 02 .08 .08 - .20 - - 56
53249.50 to 53304.50 .31 .34 - .68 - -
EOP(CSR) 95 L 01 .38 .39 .29 - - - 19
53249.95 to 53303.60 .50 .27 .92 - - -
EOP(IAA) 2 L 01 .05 .05 .03 .03 - - 58
53249.00 to 53306.00 .29 .25 .29 .19 - -
EOP(MCC) 97 L 01 .07 .06 - .10 - - 51
53249.00 to 53299.00 .21 .13 - .60 - -
Bulletin A
EOP(NEOS) 97 C 01 .06 .05 .08 - - - 58
53249.00 to 53306.00 .11 .13 .28 - - -