BULLETIN B 199 1 September 2004 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 dPsi dEpsilon 2004 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. JUL 3 53189 -.00175 .51171 -.467829 -32.467829 -57.9 -5.1 JUL 8 53194 .00968 .51475 -.465262 -32.465262 -58.1 -4.5 JUL 13 53199 .02434 .51877 -.462514 -32.462514 -59.6 -4.5 JUL 18 53204 .03597 .52075 -.460287 -32.460287 -59.9 -5.2 JUL 23 53209 .05024 .51941 -.458058 -32.458058 -60.2 -4.6 JUL 28 53214 .06401 .51856 -.456102 -32.456103 -62.0 -4.5 AUG 2 53219 .07551 .51560 -.454321 -32.454321 -61.3 -5.0 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. AUG 7 53224 .08885 .51477 -.453039 -32.453039 -63.0 -4.2 AUG 12 53229 .10289 .51270 -.452548 -32.452548 -62.4 -5.2 AUG 17 53234 .11730 .51301 -.452114 -32.452114 -62.6 -4.6 AUG 22 53239 .12834 .50933 -.452336 -32.452336 -63.5 -4.9 AUG 27 53244 .13850 .50235 -.452705 -32.452705 -62.7 -4.2 SEP 1 53249 .15189 .49554 -.452435 -32.452435 -62.1 -3.1 SEP 6 53254 .16165 .48727 -.452572 -32.452572 -62.8 -4.1 SEP 11 53259 .17020 .47777 -.453075 -32.453075 -62.1 -4.6 SEP 16 53264 .17783 .46752 -.453938 -32.453938 -61.4 -3.8 SEP 21 53269 .18463 .45665 -.455112 -32.455112 -62.8 -3.9 SEP 26 53274 .19060 .44525 -.456562 -32.456562 -60.8 -4.0 OCT 1 53279 .19574 .43338 -.458286 -32.458286 -61.2 -3.2 OCT 6 53284 .20001 .42111 -.460239 -32.460239 -60.9 -3.9 OCT 11 53289 .20342 .40853 -.462360 -32.462360 -59.5 -3.5 OCT 16 53294 .20596 .39570 -.464619 -32.464619 -60.2 -2.8 OCT 21 53299 .20763 .38269 -.466961 -32.466961 -59.4 -3.2 OCT 26 53304 .20843 .36960 -.469349 -32.469349 -58.0 -2.5 OCT 31 53309 .20837 .35649 -.471744 -32.471744 -58.3 -2.3 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, dPsi, and dEpsilon. IERS, B 199 (2) 2 - SMOOTHED VALUES OF x, y, UT1, D, DPSI, DEPSILON (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 dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" JUL 3 53189 -.00175 .51171 -.467605 .224 -.656 -57.9 -5.1 JUL 4 53190 .00041 .51232 -.467113 .451 -.535 -57.7 -5.2 JUL 5 53191 .00274 .51291 -.466554 .462 -.489 -57.7 -5.2 JUL 6 53192 .00514 .51365 -.466127 .239 -.290 -57.7 -5.1 JUL 7 53193 .00738 .51420 -.465947 -.162 -.094 -57.9 -4.8 JUL 8 53194 .00968 .51475 -.465902 -.640 -.083 -58.1 -4.5 JUL 9 53195 .01235 .51516 -.465747 -1.092 -.167 -58.3 -4.2 JUL 10 53196 .01546 .51611 -.465544 -1.430 -.269 -58.6 -4.0 JUL 11 53197 .01829 .51701 -.465196 -1.601 -.456 -59.0 -4.0 JUL 12 53198 .02137 .51765 -.464629 -1.577 -.663 -59.3 -4.2 JUL 13 53199 .02434 .51877 -.463874 -1.360 -.841 -59.6 -4.5 JUL 14 53200 .02625 .51904 -.462958 -.974 -.994 -59.8 -4.9 JUL 15 53201 .02829 .51992 -.461904 -.465 -1.051 -59.8 -5.2 JUL 16 53202 .03046 .52030 -.460880 .106 -1.028 -59.8 -5.4 JUL 17 53203 .03254 .52065 -.459874 .664 -.876 -59.8 -5.4 JUL 18 53204 .03597 .52075 -.459151 1.136 -.768 -59.9 -5.2 JUL 19 53205 .03857 .52068 -.458356 1.459 -.744 -59.9 -4.9 JUL 20 53206 .04152 .52048 -.457672 1.590 -.521 -59.9 -4.7 JUL 21 53207 .04409 .52019 -.457314 1.514 -.230 -59.9 -4.6 JUL 22 53208 .04690 .51971 -.457201 1.246 -.035 -59.9 -4.6 JUL 23 53209 .05024 .51941 -.457222 .836 .068 -60.2 -4.6 JUL 24 53210 .05303 .51917 -.457308 .359 .164 -60.6 -4.6 JUL 25 53211 .05617 .51896 -.457516 -.089 .043 -61.2 -4.5 JUL 26 53212 .05916 .51899 -.457363 -.406 -.256 -61.7 -4.4 JUL 27 53213 .06162 .51901 -.456986 -.517 -.433 -62.1 -4.3 JUL 28 53214 .06401 .51856 -.456500 -.397 -.625 -62.0 -4.5 JUL 29 53215 .06652 .51832 -.455764 -.093 -.760 -61.8 -4.7 JUL 30 53216 .06851 .51760 -.455026 .282 -.696 -61.4 -4.9 JUL 31 53217 .07036 .51699 -.454420 .585 -.572 -61.2 -5.1 AUG 1 53218 .07301 .51615 -.453916 .691 -.324 -61.2 -5.1 AUG 2 53219 .07551 .51560 -.453778 .543 .003 -61.3 -5.0 AUG 3 53220 .07841 .51528 -.453900 .166 .209 -61.7 -4.8 AUG 4 53221 .08105 .51523 -.454158 -.349 .287 -62.1 -4.7 AUG 5 53222 .08397 .51494 -.454434 -.880 .218 -62.4 -4.5 AUG 6 53223 .08658 .51491 -.454562 -1.317 .104 -62.7 -4.4 AUG 7 53224 .08885 .51477 -.454622 -1.582 .001 -63.0 -4.2 AUG 8 53225 .09182 .51403 -.454557 -1.640 -.159 -63.2 -4.2 AUG 9 53226 .09482 .51372 -.454307 -1.486 -.370 -63.2 -4.3 AUG 10 53227 .09742 .51316 -.453830 -1.146 -.552 -63.1 -4.5 AUG 11 53228 .09972 .51290 -.453221 -.666 -.599 -62.8 -4.8 AUG 12 53229 .10289 .51270 -.452654 -.107 -.649 -62.4 -5.2 AUG 13 53230 .10573 .51324 -.451948 .459 -.635 -62.1 -5.5 AUG 14 53231 .10890 .51347 -.451409 .955 -.506 -62.1 -5.4 AUG 15 53232 .11165 .51372 -.450956 1.314 -.366 -62.3 -5.2 AUG 16 53233 .11473 .51339 -.450690 1.483 -.141 -62.5 -4.9 AUG 17 53234 .11730 .51301 -.450676 1.438 .114 -62.6 -4.6 AUG 18 53235 .11970 .51231 -.450907 1.189 .338 -62.5 -4.6 AUG 19 53236 .12220 .51162 -.451329 .785 .492 -62.4 -4.7 AUG 20 53237 .12425 .51110 -.451859 .308 .555 -62.6 -4.8 AUG 21 53238 .12670 .51030 -.452404 -.142 .486 -63.0 -4.9 AUG 22 53239 .12834 .50933 -.452801 -.466 .303 -63.5 -4.9 AUG 23 53240 .13024 .50777 -.452993 -.589 .100 -63.9 -5.0 AUG 24 53241 .13221 .50650 -.453001 -.486 -.092 -64.1 -4.9 AUG 25 53242 .13457 .50466 -.452829 -.187 -.263 -63.9 -4.8 AUG 26 53243 .13614 .50395 -.452514 .215 -.381 -63.4 -4.0 IERS, B 199 (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 dPsi dEps x y UT1 dPsi dEps (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" JUL 3 53189 -.00174 .51168 -.467606 -57.87 -5.19 .03 .03 .07 .16 .08 JUL 8 53194 .00967 .51475 -.465903 -58.06 -4.57 .02 .02 .02 .07 .03 JUL 13 53199 .02434 .51877 -.463874 -59.66 -4.49 .01 .01 .03 .08 .03 JUL 18 53204 .03598 .52076 -.459151 -59.96 -5.15 .02 .02 .03 .06 .02 JUL 23 53209 .05022 .51941 -.457221 -59.80 -4.66 .02 .03 .05 .24 .09 JUL 28 53214 .06398 .51857 -.456500 -62.08 -4.43 .02 .02 .03 .11 .04 AUG 2 53219 .07551 .51560 -.453778 -61.33 -4.99 .02 .02 .03 .08 .03 AUG 7 53224 .08884 .51477 -.454614 -63.12 -4.25 .02 .02 .04 .20 .08 AUG 12 53229 .10290 .51271 -.452652 -62.42 -5.18 .02 .02 .02 .08 .03 AUG 17 53234 .11729 .51301 -.450676 -62.64 -4.58 .02 .02 .03 .08 .03 AUG 22 53239 .12833 .50932 -.452801 -63.50 -4.93 .02 .02 .03 .16 .06 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) JUL 3 53189 -.00035 72.921 15176 JUL 8 53194 -.00057 15195 JUL 13 53199 -.00054 15192 JUL 18 53204 -.00037 15178 JUL 23 53209 -.00040 15180 JUL 28 53214 -.00040 15181 AUG 2 53219 -.00028 15170 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 199 (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. The complete list of measurements is available in the electronic-mailed version of Bulletin B in section 7. Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dPsi, dEpsi. -------------------------------------------------------------------------------- EOP series Mean formal uncertainty Periods covered Weighted RMS agreement with Bulletin B -------------------------------------------------------------------------------- x y UT D dPsi dEps Data Number VLBI EOP(AUS) 1 R 01 1.14 1.19 .70 - .31 .11 13 53193.20 to 53237.27 .09 .18 .05 - .19 .10 EOP(BKG) 3 R 04 .13 .11 .05 - .23 .08 13 53193.20 to 53237.27 .16 .21 .08 - .22 .08 EOP(BKG) 3 R 02 - - .14 - - - 40 53189.33 to 53242.79 - - .12 - - - EOP(GSFC) 4 R 02 .24 .15 .13 - .32 .12 15 53192.00 to 53237.27 .22 .13 .06 - .11 .06 EOP(GSFC) 4 R 01 - - .13 - - - 35 53192.79 to 53242.79 - - .16 - - - EOP(IAA) 3 R 04 .10 .08 .04 - - - 12 53193.20 to 53237.27 .13 .15 .05 - - - EOP(IAA) 3 R 03 - - .13 - - - 37 53189.33 to 53242.79 - - .16 - - - EOP(SPBU) 3 R 03 .36 .37 .23 - .12 .05 12 53193.20 to 53237.27 .32 .26 .06 - .25 .11 EOP(SPBU) 2 R 01 - - .13 - - - 30 53195.81 to 53241.79 - - .12 - - - EOP(MAO) 3 R 01 .10 .09 .04 - - - 11 53193.22 to 53234.25 .16 .18 .08 - - - EOP(USNO) 4 R 01 .10 .09 .03 - .21 .07 13 53193.20 to 53237.27 .15 .13 .05 - .14 .05 EOP(IVS) 0 R 01 .08 .07 .03 - .08 .04 11 53193.00 to 53227.00 .21 .10 .06 - .14 .07 GPS EOP(CODE) 98 P 01 .01 .01 - .24 - - 54 53189.50 to 53242.50 .07 .08 - .51 - - EOP(EMR) 96 P 03 .03 .03 - .04 - - 54 53189.50 to 53242.50 .10 .08 - .60 - - EOP(ESOC) 96 P 01 .01 .02 - .05 - - 54 53189.50 to 53242.50 .28 .08 - .64 - - EOP(GFZ) 96 P 02 .01 .01 - .01 - - 54 53189.50 to 53242.50 .08 .08 - .39 - - EOP(IAA) 1 P 01 .03 .03 - .06 - - 54 53189.50 to 53242.50 .19 .22 - .73 - - EOP(JPL) 96 P 03 .02 .02 - .11 - - 54 53189.50 to 53242.50 .06 .07 - .27 - - EOP(NOAA) 96 P 01 .02 .02 - .03 - - 53 53189.50 to 53241.50 .26 .16 - .37 - - EOP(SIO) 96 P 01 .05 .05 - .11 - - 54 53189.50 to 53242.50 .06 .06 - .66 - - EOP(IGS F)95 P 02 .02 .02 .08 .04 - - 43 53189.50 to 53231.50 .06 .07 .48 .46 - - EOP(IGS R)96 P 02 .03 .03 .22 .06 - - 54 53189.50 to 53242.50 .14 .06 .76 .39 - - EOP(IERS) 97 P 01 .03 .04 .21 .14 - - 54 53189.50 to 53242.50 .04 .03 .63 .55 - - SLR EOP(ASI) 3 L 02 .06 .07 - .16 - - 53 53189.50 to 53241.50 .29 .26 - .88 - - EOP(CSR) 95 L 01 .36 .40 .33 - - - 18 53190.18 to 53240.89 .22 .41 .69 - - - EOP(DUT) 98 L 01 .12 .13 - - - - 8 53189.00 to 53196.00 .44 .46 - - - - EOP(IAA) 2 L 01 .04 .04 .03 .03 - - 55 53189.00 to 53243.00 .28 .19 .39 .23 - - EOP(MCC) 97 L 01 .06 .06 - .10 - - 55 53189.00 to 53243.00 .17 .18 - .57 - - Bulletin A EOP(NEOS) 97 C 01 .06 .06 .08 - - - 55 53189.00 to 53243.00 .13 .12 .56 - - -