BULLETIN B 197
(IAU 2000)
2 July 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.
MAY 4 53129 -.11706 .41347 -.456294 -32.456294 .07 -.03
MAY 9 53134 -.11108 .42616 -.459859 -32.459859 -.07 -.13
MAY 14 53139 -.10223 .43999 -.462999 -32.462999 .16 .06
MAY 19 53144 -.09888 .44815 -.466505 -32.466505 .04 -.06
MAY 24 53149 -.09317 .45497 -.469485 -32.469485 .02 .05
MAY 29 53154 -.08826 .46305 -.470524 -32.470524 .26 .07
JUN 3 53159 -.07986 .47066 -.470402 -32.470402 .20 .05
Preliminary extension, to be updated weekly in Bulletin A and monthly
in Bulletin B.
JUN 8 53164 -.07175 .47824 -.470656 -32.470656 .01 .06
JUN 13 53169 -.06269 .48585 -.470962 -32.470962 .13 .18
JUN 18 53174 -.04823 .49335 -.471259 -32.471259 .04 .02
JUN 23 53179 -.03171 .50095 -.470881 -32.470881 .00 .00
JUN 28 53184 -.01620 .50711 -.469475 -32.469475 .00 .00
JUL 3 53189 -.00179 .51229 -.467819 -32.467819 .00 .00
JUL 8 53194 .01236 .51510 -.465759 -32.465759 .00 .00
JUL 13 53199 .02658 .51654 -.463829 -32.463829 .00 .00
JUL 18 53204 .04083 .51683 -.461990 -32.461990 .00 .00
JUL 23 53209 .05502 .51608 -.460197 -32.460197 .00 .00
JUL 28 53214 .06907 .51429 -.458450 -32.458450 .00 .00
AUG 2 53219 .08292 .51148 -.456795 -32.456795 .00 .00
AUG 7 53224 .09646 .50768 -.455269 -32.455269 .00 .00
AUG 12 53229 .10963 .50291 -.453941 -32.453941 .00 .00
AUG 17 53234 .12234 .49721 -.452858 -32.452858 .00 .00
AUG 22 53239 .13453 .49062 -.452034 -32.452034 .00 .00
AUG 27 53244 .14613 .48317 -.451508 -32.451508 .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 197 (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"
MAY 4 53129 -.11706 .41347 -.456709 -.415 1.120 .07 -.03
MAY 5 53130 -.11579 .41638 -.457781 -.843 .960 .11 -.20
MAY 6 53131 -.11493 .41910 -.458606 -1.000 .720 .18 -.15
MAY 7 53132 -.11392 .42155 -.459234 -.879 .528 .13 -.06
MAY 8 53133 -.11248 .42388 -.459701 -.559 .374 .01 -.06
MAY 9 53134 -.11108 .42616 -.460031 -.171 .315 -.07 -.13
MAY 10 53135 -.10962 .42873 -.460371 .148 .410 -.02 -.15
MAY 11 53136 -.10792 .43163 -.460874 .303 .595 .11 -.10
MAY 12 53137 -.10599 .43446 -.461563 .255 .751 .22 -.06
MAY 13 53138 -.10392 .43721 -.462361 .026 .893 .23 -.02
MAY 14 53139 -.10223 .43999 -.463325 -.326 1.024 .16 .06
MAY 15 53140 -.10123 .44228 -.464380 -.718 1.074 .07 .15
MAY 16 53141 -.10059 .44405 -.465447 -1.069 1.011 .02 .15
MAY 17 53142 -.10012 .44555 -.466381 -1.306 .858 .02 .05
MAY 18 53143 -.09963 .44688 -.467150 -1.379 .695 .02 -.04
MAY 19 53144 -.09888 .44815 -.467768 -1.263 .505 .04 -.06
MAY 20 53145 -.09762 .44948 -.468166 -.962 .284 .04 -.05
MAY 21 53146 -.09623 .45099 -.468352 -.509 .123 .00 -.03
MAY 22 53147 -.09512 .45230 -.468434 .040 .027 -.06 -.05
MAY 23 53148 -.09421 .45352 -.468430 .616 -.059 -.06 -.03
MAY 24 53149 -.09317 .45497 -.468340 1.145 -.087 .02 .05
MAY 25 53150 -.09182 .45661 -.468276 1.557 -.023 .13 .07
MAY 26 53151 -.09080 .45829 -.468311 1.794 .099 .26 -.12
MAY 27 53152 -.09010 .45982 -.468484 1.816 .270 .28 -.29
MAY 28 53153 -.08929 .46143 -.468853 1.605 .437 .26 -.23
MAY 29 53154 -.08826 .46305 -.469344 1.180 .548 .26 .07
MAY 30 53155 -.08705 .46443 -.469919 .609 .586 .19 .36
MAY 31 53156 -.08555 .46562 -.470473 .005 .518 .04 .35
JUN 1 53157 -.08374 .46712 -.470909 -.494 .357 -.02 .12
JUN 2 53158 -.08190 .46899 -.471155 -.771 .135 .08 -.02
JUN 3 53159 -.07986 .47066 -.471176 -.774 -.085 .20 .05
JUN 4 53160 -.07761 .47216 -.471014 -.540 -.241 .19 .12
JUN 5 53161 -.07573 .47370 -.470741 -.187 -.272 .05 .05
JUN 6 53162 -.07444 .47539 -.470518 .140 -.200 -.08 -.06
JUN 7 53163 -.07328 .47693 -.470375 .315 -.075 -.09 -.04
JUN 8 53164 -.07175 .47824 -.470377 .279 .121 .01 .06
JUN 9 53165 -.06989 .47988 -.470602 .043 .324 .15 .07
JUN 10 53166 -.06831 .48154 -.470997 -.330 .430 .24 .00
JUN 11 53167 -.06666 .48296 -.471431 -.750 .470 .22 .00
JUN 12 53168 -.06488 .48442 -.471911 -1.131 .476 .16 .11
JUN 13 53169 -.06269 .48585 -.472363 -1.401 .360 .13 .18
JUN 14 53170 -.06033 .48725 -.472619 -1.510 .136 .17 .13
JUN 15 53171 -.05780 .48857 -.472630 -1.434 -.085 .25 .06
JUN 16 53172 -.05487 .48988 -.472414 -1.173 -.316 .17 -.01
JUN 17 53173 -.05148 .49147 -.472012 -.751 -.478 .07 .02
JUN 18 53174 -.04823 .49335 -.471478 -.219 -.598 .04 .02
JUN 19 53175 -.04504 .49534 -.470841 .358 -.598 .00 .00
JUN 20 53176 -.04190 .49697 -.470226 .906 -.575 .00 .00
JUN 21 53177 -.03838 .49832 -.469714 1.353 -.438 .00 .00
JUN 22 53178 -.03517 .49969 -.469366 1.642 -.328 .00 .00
JUN 23 53179 -.03171 .50095 -.469146 1.734 -.185 .00 .00
JUN 24 53180 -.02856 .50216 -.469056 1.614 .007 .00 .00
IERS, B 197 (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"
MAY 4 53129 -.11706 .41347 -.456705 .069 .018 .02 .02 .02 .02 .02
MAY 9 53134 -.11108 .42616 -.460032 -.066 -.122 .01 .01 .02 .01 .01
MAY 14 53139 -.10223 .43999 -.463325 .190 -.028 .01 .02 .02 .04 .05
MAY 19 53144 -.09888 .44815 -.467768 .055 -.074 .01 .02 .02 .02 .02
MAY 24 53149 -.09317 .45497 -.468341 .014 .089 .02 .02 .03 .04 .04
MAY 29 53154 -.08828 .46305 -.469342 .282 .060 .02 .02 .03 .05 .05
JUN 3 53159 -.07985 .47066 -.471176 .187 -.001 .02 .02 .02 .03 .04
JUN 8 53164 -.07174 .47825 -.470375 -.030 .075 .02 .02 .03 .05 .05
JUN 13 53169 -.06268 .48585 -.472362 .149 .193 .02 .02 .04 .06 .07
JUN 18 53174 -.04823 .49335 -.471478 .033 .019 .02 .02 .03 .05 .07
JUN 23 53179 -.03171 .50094 -.469144 - - .01 .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)
MAY 4 53129 .00058 72.921 15097
MAY 9 53134 .00069 15088
MAY 14 53139 .00064 15092
MAY 19 53144 .00072 15086
MAY 24 53149 .00040 15113
MAY 29 53154 .00004 15143
JUN 3 53159 .00005 15143
5 - INFORMATION ON TIME SCALES
No leap second was introduced in UTC on 30 June 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 197 (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 .80 .88 .49 - - - 12
53129.21 to 53167.27 .12 .19 .09 - - -
EOP(BKG) 3 R 04 .11 .10 .04 - - - 13
53129.21 to 53174.27 .17 .15 .07 - - -
EOP(BKG) 3 R 02 - - .14 - - - 38
53129.79 to 53179.79 - - .22 - - -
EOP(GSFC) 4 R 02 .15 .10 .12 - - - 15
53129.21 to 53174.27 .13 .07 .05 - - -
EOP(GSFC) 4 R 01 - - .16 - - - 35
53129.79 to 53179.79 - - .15 - - -
EOP(IAA) 3 R 04 .08 .08 .03 - .13 .05 12
53129.21 to 53167.27 .09 .08 .06 - .17 .06
EOP(IAA) 3 R 03 - - .16 - - - 35
53129.79 to 53179.79 - - .19 - - -
EOP(SPBU) 3 R 03 .25 .30 .17 - - - 6
53129.21 to 53145.27 .07 .21 .11 - - -
EOP(SPBU) 2 R 01 - - .14 - - - 23
53129.79 to 53150.79 - - .22 - - -
EOP(MAO) 3 R 01 .09 .09 .04 - .15 .06 12
53129.23 to 53167.31 .11 .08 .12 - .21 .09
EOP(USNO) 4 R 01 .08 .08 .03 - - - 14
53129.21 to 53174.27 .10 .09 .06 - - -
EOP(IVS) 0 R 01 .06 .06 .03 - - - 10
53129.00 to 53160.00 .15 .09 .09 - - -
GPS
EOP(CODE) 98 P 01 .01 .01 - .23 - - 51
53129.50 to 53179.50 .05 .09 - .30 - -
EOP(EMR) 96 P 03 .03 .03 - .04 - - 51
53129.50 to 53179.50 .07 .09 - .47 - -
EOP(ESOC) 96 P 01 .01 .02 - .02 - - 51
53129.50 to 53179.50 .21 .07 - .37 - -
EOP(GFZ) 96 P 02 .01 .01 - .01 - - 51
53129.50 to 53179.50 .10 .05 - .30 - -
EOP(IAA) 1 P 01 .03 .03 - .06 - - 46
53129.50 to 53174.50 .13 .20 - .74 - -
EOP(JPL) 96 P 03 .03 .03 - .10 - - 51
53129.50 to 53179.50 .04 .06 - .54 - -
EOP(NOAA) 96 P 01 .01 .01 - .02 - - 51
53129.50 to 53179.50 .22 .21 - .55 - -
EOP(SIO) 96 P 01 .05 .05 - .11 - - 51
53129.50 to 53179.50 .05 .06 - .43 - -
EOP(IGS F)95 P 02 .02 .03 .07 .04 - - 40
53129.50 to 53168.50 .04 .05 .27 .21 - -
EOP(IGS R)96 P 02 .03 .03 .19 .06 - - 51
53129.50 to 53179.50 .11 .04 .96 .29 - -
EOP(IERS) 97 P 01 .03 .04 .17 .12 - - 51
53129.50 to 53179.50 .02 .02 .49 .29 - -
SLR
EOP(ASI) 3 L 02 .06 .07 - .16 - - 51
53129.50 to 53179.50 .23 .23 - .91 - -
EOP(CSR) 95 L 01 .29 .32 .26 - - - 17
53130.17 to 53177.97 .31 .19 .83 - - -
EOP(DUT) 98 L 01 .13 .14 - - - - 19
53162.00 to 53180.00 .33 .34 - - - -
EOP(IAA) 2 L 01 .04 .05 .03 .03 - - 52
53129.00 to 53180.00 .16 .14 .25 .17 - -
EOP(MCC) 97 L 01 .06 .06 - .10 - - 52
53129.00 to 53180.00 .20 .15 - .49 - -
Bulletin A
EOP(NEOS) 97 C 01 .05 .06 .06 - - - 52
53129.00 to 53180.00 .08 .08 .31 - - -