BULLETIN B 172 3 June 2002 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 2002 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. APR 5 52369 -.01496 .54420 -.190962 -32.190962 -50.7 -5.0 APR 10 52374 -.00179 .54928 -.194992 -32.194992 -50.5 -4.1 APR 15 52379 .01291 .55253 -.198834 -32.198834 -50.1 -4.4 APR 20 52384 .02895 .55489 -.201955 -32.201955 -50.3 -5.2 APR 25 52389 .04489 .55449 -.204879 -32.204879 -49.8 -5.1 APR 30 52394 .06354 .55268 -.208471 -32.208471 -50.7 -5.1 MAY 5 52399 .08073 .55170 -.211617 -32.211617 -50.1 -5.3 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. MAY 10 52404 .09768 .54920 -.215203 -32.215203 -51.1 -4.6 MAY 15 52409 .11206 .54560 -.219516 -32.219516 -50.9 -5.6 MAY 20 52414 .12521 .53995 -.223881 -32.223881 -50.5 -17.3 MAY 25 52419 .13823 .53605 -.227835 -32.227835 -52.7 -4.2 MAY 30 52424 .15199 .53011 -.230624 -32.230624 -52.5 -5.6 JUN 4 52429 .16543 .52130 -.232315 -32.232315 -50.5 -5.4 JUN 9 52434 .18016 .50960 -.234146 -32.234146 -51.9 -4.8 JUN 14 52439 .19448 .49619 -.235565 -32.235565 -52.4 -5.3 JUN 19 52444 .20799 .48149 -.236572 -32.236572 -52.0 -4.9 JUN 24 52449 .22042 .46573 -.237213 -32.237213 -54.6 -4.9 JUN 29 52454 .23165 .44905 -.237549 -32.237549 -53.9 -5.2 JUL 4 52459 .24155 .43154 -.237640 -32.237640 -54.8 -4.7 JUL 9 52464 .25003 .41332 -.237503 -32.237503 -56.6 -4.8 JUL 14 52469 .25704 .39450 -.237244 -32.237244 -55.8 -4.9 JUL 19 52474 .26252 .37520 -.236877 -32.236877 -57.8 -4.5 JUL 24 52479 .26642 .35552 -.236473 -32.236473 -58.4 -4.8 JUL 29 52484 .26872 .33561 -.236084 -32.236084 -57.9 -4.6 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 172 (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 2000 IERS Annual Report. 2002 MJD x y UT1-UTC UT1-UT1R D dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" APR 5 52369 -.01496 .54420 -.191681 -.719 .389 -50.7 -5.0 APR 6 52370 -.01158 .54571 -.192077 -.302 .430 -50.9 -5.0 APR 7 52371 -.00871 .54696 -.192557 .040 .534 -50.8 -4.9 APR 8 52372 -.00616 .54785 -.193153 .270 .643 -50.7 -4.7 APR 9 52373 -.00378 .54865 -.193845 .373 .744 -50.6 -4.4 APR 10 52374 -.00179 .54928 -.194636 .357 .857 -50.5 -4.1 APR 11 52375 .00063 .54966 -.195548 .246 .947 -50.5 -4.0 APR 12 52376 .00375 .55038 -.196514 .083 .964 -50.5 -3.9 APR 13 52377 .00685 .55127 -.197457 -.083 .916 -50.4 -4.0 APR 14 52378 .00994 .55189 -.198328 -.198 .803 -50.2 -4.2 APR 15 52379 .01291 .55253 -.199050 -.216 .623 -50.1 -4.4 APR 16 52380 .01570 .55315 -.199569 -.110 .432 -50.1 -4.6 APR 17 52381 .01885 .55368 -.199917 .128 .309 -50.2 -4.8 APR 18 52382 .02215 .55415 -.200199 .473 .261 -50.3 -5.0 APR 19 52383 .02550 .55454 -.200461 .877 .232 -50.4 -5.1 APR 20 52384 .02895 .55489 -.200692 1.263 .243 -50.3 -5.2 APR 21 52385 .03205 .55500 -.200979 1.538 .376 -50.2 -5.3 APR 22 52386 .03489 .55492 -.201471 1.610 .634 -50.0 -5.3 APR 23 52387 .03786 .55481 -.202259 1.418 .929 -49.8 -5.3 APR 24 52388 .04125 .55462 -.203318 .958 1.177 -49.7 -5.2 APR 25 52389 .04489 .55449 -.204577 .302 1.366 -49.8 -5.1 APR 26 52390 .04870 .55436 -.205999 -.420 1.424 -50.0 -4.9 APR 27 52391 .05251 .55396 -.207377 -1.055 1.290 -50.2 -4.8 APR 28 52392 .05627 .55335 -.208547 -1.477 1.024 -50.4 -4.8 APR 29 52393 .05999 .55290 -.209417 -1.625 .711 -50.6 -4.9 APR 30 52394 .06354 .55268 -.209985 -1.514 .441 -50.7 -5.1 MAY 1 52395 .06681 .55255 -.210328 -1.211 .279 -50.9 -5.4 MAY 2 52396 .07004 .55226 -.210575 -.809 .205 -51.0 -5.6 MAY 3 52397 .07340 .55198 -.210765 -.398 .209 -50.8 -5.6 MAY 4 52398 .07689 .55181 -.211011 -.047 .320 -50.5 -5.5 MAY 5 52399 .08073 .55170 -.211416 .200 .479 -50.1 -5.3 MAY 6 52400 .08477 .55157 -.211972 .323 .609 -49.8 -4.9 MAY 7 52401 .08857 .55125 -.212630 .323 .723 -49.7 -4.7 MAY 8 52402 .09154 .55071 -.213409 .220 .866 -50.1 -4.5 MAY 9 52403 .09433 .54992 -.214347 .053 .972 -50.6 -4.5 MAY 10 52404 .09768 .54920 -.215336 -.132 .991 -51.1 -4.6 MAY 11 52405 .10115 .54885 -.216313 -.283 .951 -51.2 -4.7 MAY 12 52406 .10403 .54836 -.217223 -.350 .865 -51.1 -4.8 MAY 13 52407 .10682 .54754 -.218032 -.295 .749 -50.9 -5.1 MAY 14 52408 .10963 .54675 -.218720 -.102 .631 -50.7 -5.4 MAY 15 52409 .11206 .54560 -.219303 .213 .555 -50.9 -5.6 MAY 16 52410 .11418 .54400 -.219850 .607 .513 -51.1 -5.5 MAY 17 52411 .11650 .54243 -.220357 1.007 .492 -51.1 -5.4 MAY 18 52412 .11912 .54124 -.220864 1.327 .577 -50.9 -6.7 MAY 19 52413 .12199 .54048 -.221538 1.482 .796 -50.6 -10.8 MAY 20 52414 .12521 .53995 -.222471 1.410 1.060 -50.5 -17.3 MAY 21 52415 .12851 .53946 -.223656 1.091 1.277 -50.7 -23.0 MAY 22 52416 .13125 .53878 -.225001 .563 1.401 -51.1 -23.9 MAY 23 52417 .13368 .53795 -.226419 -.080 1.425 -51.1 -4.5 MAY 24 52418 .13598 .53699 -.227805 -.706 1.321 -51.9 -4.3 MAY 25 52419 .13823 .53605 -.229022 -1.187 1.086 -52.7 -4.2 MAY 26 52420 .14050 .53498 -.229959 -1.433 .770 -53.3 -4.2 MAY 27 52421 .14316 .53369 -.230566 -1.422 .445 -53.5 -4.4 MAY 28 52422 .14633 .53242 -.230872 -1.194 .204 -53.4 -4.8 MAY 29 52423 .14921 .53139 -.230992 -.831 .126 -53.0 -5.2 MAY 30 52424 .15199 .53011 -.231052 -.428 .110 -52.5 -5.6 IERS, B 172 (3) 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 2002 MJD x y UT1-UTC dPsi dEps x y UT1 dPsi dEps (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" APR 5 52369 -.01495 .54422 -.191682 -50.76 -5.04 .02 .01 .01 .06 .02 APR 10 52374 -.00179 .54928 -.194635 -50.43 -4.15 .01 .02 .02 .06 .02 APR 15 52379 .01291 .55251 -.199051 -50.13 -4.39 .02 .02 .02 .08 .03 APR 20 52384 .02895 .55488 -.200692 -50.27 -5.19 .02 .02 .02 .08 .03 APR 25 52389 .04489 .55449 -.204577 -49.80 -5.10 .01 .02 .01 .05 .02 APR 30 52394 .06354 .55268 -.209985 -50.73 -5.13 .02 .02 .03 .13 .05 MAY 5 52399 .08072 .55170 -.211417 -50.05 -5.26 .02 .02 .02 .07 .03 MAY 10 52404 .09768 .54921 -.215336 -51.11 -4.64 .02 .02 .02 .12 .05 MAY 15 52409 .11209 .54559 -.219304 -50.91 -5.60 .02 .02 .02 .08 .03 MAY 20 52414 .12522 .53995 -.222471 - - .01 .02 .03 - - MAY 25 52419 .13822 .53605 -.229022 - - .02 .02 .03 - - MAY 30 52424 .15199 .53011 -.231058 - - .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 2002 MJD s (microrad/s) APR 5 52369 .00083 72.921 15076 APR 10 52374 .00079 15080 APR 15 52379 .00067 15090 APR 20 52384 .00059 15097 APR 25 52389 .00066 15091 APR 30 52394 .00067 15090 MAY 5 52399 .00067 15090 5 - INFORMATION ON TIME SCALES No leap second will be introduced in UTC on 30 June 2002. 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 172 (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 .08 .07 .03 - .13 .05 8 52369.27 to 52397.27 .23 .11 .04 - .22 .07 EOP(BKG) 1 R 03 .11 .09 .04 - .14 .06 13 52369.00 to 52411.00 .32 .22 .08 - .12 .10 EOP(BKG) 1 R 02 - - .07 - - - 28 52369.81 to 52418.81 - - .08 - - - EOP(GSFC) 1 R 04 .08 .07 .03 - .15 .07 13 52369.27 to 52411.27 .15 .10 .09 - .19 .08 EOP(GSFC) 1 R 03 - - .10 - - - 29 52369.81 to 52422.79 - - .06 - - - EOP(IAA) 2 R 01 .08 .07 .03 - .16 .06 13 52369.27 to 52411.27 .26 .13 .08 - .18 .05 EOP(IAA) 2 R 02 - - .08 - - - 29 52369.81 to 52422.79 - - .07 - - - EOP(SPBU) 1 R 02 .13 .12 .04 - .20 .08 13 52369.27 to 52411.27 .38 .22 .03 - .28 .08 EOP(SPBU) 2 R 01 - - .10 - - - 27 52369.81 to 52416.79 - - .08 - - - GPS EOP(CODE) 98 P 01 .01 .01 - .30 - - 55 52369.50 to 52423.50 .05 .10 - .35 - - EOP(EMR) 96 P 03 .04 .04 - .07 - - 51 52369.50 to 52419.50 .08 .10 - .31 - - EOP(ESOC) 96 P 01 .20 .20 - .31 - - 55 52369.50 to 52423.50 .15 .12 - .31 - - EOP(GFZ) 96 P 02 .05 .05 - .02 - - 55 52369.50 to 52423.50 .09 .22 - .37 - - EOP(IAA) 1 P 01 .03 .03 - .06 - - 55 52369.50 to 52423.50 .14 .18 - .37 - - EOP(JPL) 96 P 03 .03 .03 - .14 - - 47 52369.50 to 52415.50 .06 .06 - .78 - - EOP(NOAA) 96 P 01 .02 .02 - .19 - - 51 52369.50 to 52419.50 .15 .30 - .50 - - EOP(SIO) 96 P 01 .08 .08 - .20 - - 55 52369.50 to 52423.50 .09 .10 - .31 - - EOP(IGS F)95 P 02 .04 .04 .08 .07 - - 44 52369.50 to 52412.50 .05 .06 .28 .22 - - EOP(IGS R)96 P 02 .05 .05 .21 .07 - - 55 52369.50 to 52423.50 .06 .11 .52 .30 - - EOP(IERS) 97 P 01 .05 .05 .25 .17 - - 55 52369.50 to 52423.50 .03 .02 .52 .21 - - SLR EOP(CGS) 97 L 02 .18 .18 .16 - - - 43 52369.00 to 52411.00 .43 .47 1.70 - - - EOP(CSR) 95 L 01 .32 .32 .27 - - - 18 52371.01 to 52421.65 .46 .53 .97 - - - EOP(DUT) 98 L 01 .10 .10 - - - - 16 52371.00 to 52416.00 .40 .23 - - - - EOP(IAA) 2 L 01 .04 .04 .03 .03 - - 56 52369.00 to 52424.00 .14 .15 .27 .15 - - EOP(MCC) 97 L 01 .05 .05 - .05 - - 49 52369.00 to 52417.00 .19 .19 - .45 - - Bulletin A EOP(NEOS) 97 C 01 .07 .06 .08 - - - 56 52369.00 to 52424.00 .10 .07 .16 - - - 7 - INDIVIDUAL SERIES OF EARTH ORIENTATION PARAMETERS Operational series used for Bulletin B completion are now available on our web ftp site: http://hpiers.obspm.fr/eop-pc/products/operational.html For this reason, section 7 has been removed. We hope there is no inconvenience.