BULLETIN B 176 2 October 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. AUG 3 52489 .25302 .36148 -.226961 -32.226961 -61.6 -5.1 AUG 8 52494 .25793 .34735 -.225202 -32.225202 -60.7 -5.3 AUG 13 52499 .26066 .33373 -.224257 -32.224257 -62.3 -5.2 AUG 18 52504 .25976 .32027 -.224373 -32.224373 -62.6 -5.3 AUG 23 52509 .25676 .30534 -.224700 -32.224700 -62.6 -5.3 AUG 28 52514 .25460 .28832 -.225333 -32.225333 -62.4 -4.6 SEP 2 52519 .25162 .27282 -.226098 -32.226098 -62.8 -5.1 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. SEP 7 52524 .24625 .25793 -.226822 -32.226822 -62.5 -4.8 SEP 12 52529 .23754 .24548 -.228257 -32.228257 -63.3 -4.6 SEP 17 52534 .23014 .23264 -.230204 -32.230204 -61.6 -5.5 SEP 22 52539 .21678 .22267 -.231609 -32.231609 -61.9 -3.1 SEP 27 52544 .20674 .21081 -.233007 -32.233007 -62.5 -3.8 OCT 2 52549 .19590 .19844 -.234577 -32.234577 -60.4 -3.9 OCT 7 52554 .18272 .18754 -.237011 -32.237011 -58.8 -3.1 OCT 12 52559 .16821 .17769 -.240093 -32.240093 -59.9 -3.2 OCT 17 52564 .15271 .16904 -.243664 -32.243664 -57.8 -3.2 OCT 22 52569 .13658 .16167 -.247570 -32.247570 -57.4 -2.3 OCT 27 52574 .11999 .15566 -.251705 -32.251705 -57.3 -2.7 NOV 1 52579 .10306 .15104 -.256008 -32.256008 -55.3 -2.4 NOV 6 52584 .08596 .14787 -.260387 -32.260387 -56.7 -1.8 NOV 11 52589 .06879 .14615 -.264828 -32.264828 -55.6 -2.1 NOV 16 52594 .05165 .14591 -.269283 -32.269283 -54.4 -1.5 NOV 21 52599 .03467 .14716 -.273708 -32.273708 -54.7 -1.1 NOV 26 52604 .01795 .14988 -.278088 -32.278088 -53.4 -1.5 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 176 (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 2001 IERS Annual Report. 2002 MJD x y UT1-UTC UT1-UT1R D dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" AUG 1 52487 .25125 .36680 -.227860 -.167 -.311 -60.8 -5.0 AUG 2 52488 .25224 .36408 -.227516 -.217 -.369 -61.4 -5.0 AUG 3 52489 .25302 .36148 -.227116 -.155 -.465 -61.6 -5.1 AUG 4 52490 .25398 .35892 -.226587 .031 -.606 -61.7 -5.2 AUG 5 52491 .25498 .35628 -.225913 .330 -.721 -61.5 -5.3 AUG 6 52492 .25577 .35331 -.225165 .702 -.747 -61.2 -5.4 AUG 7 52493 .25672 .35018 -.224450 1.069 -.665 -60.9 -5.4 AUG 8 52494 .25793 .34735 -.223870 1.332 -.479 -60.7 -5.3 AUG 9 52495 .25906 .34473 -.223521 1.394 -.189 -60.6 -5.3 AUG 10 52496 .25993 .34221 -.223500 1.194 .135 -60.9 -5.2 AUG 11 52497 .26043 .33968 -.223776 .743 .392 -61.3 -5.2 AUG 12 52498 .26051 .33683 -.224247 .120 .536 -61.8 -5.2 AUG 13 52499 .26066 .33373 -.224802 -.545 .562 -62.3 -5.2 AUG 14 52500 .26088 .33080 -.225329 -1.116 .472 -62.6 -5.2 AUG 15 52501 .26080 .32816 -.225719 -1.489 .272 -62.8 -5.2 AUG 16 52502 .26059 .32556 -.225867 -1.612 .037 -62.7 -5.3 AUG 17 52503 .26027 .32296 -.225804 -1.495 -.164 -62.6 -5.3 AUG 18 52504 .25976 .32027 -.225564 -1.191 -.320 -62.6 -5.3 AUG 19 52505 .25910 .31749 -.225193 -.781 -.405 -62.5 -5.3 AUG 20 52506 .25850 .31462 -.224781 -.351 -.384 -62.5 -5.3 AUG 21 52507 .25786 .31168 -.224446 .023 -.263 -62.5 -5.4 AUG 22 52508 .25722 .30863 -.224269 .291 -.088 -62.5 -5.3 AUG 23 52509 .25676 .30534 -.224273 .427 .046 -62.6 -5.3 AUG 24 52510 .25626 .30205 -.224356 .433 .147 -62.5 -5.1 AUG 25 52511 .25555 .29865 -.224556 .333 .256 -62.4 -5.0 AUG 26 52512 .25488 .29513 -.224852 .168 .317 -62.4 -4.8 AUG 27 52513 .25457 .29161 -.225172 -.011 .324 -62.3 -4.7 AUG 28 52514 .25460 .28832 -.225485 -.151 .295 -62.4 -4.6 AUG 29 52515 .25456 .28542 -.225749 -.210 .172 -62.5 -4.6 AUG 30 52516 .25415 .28223 -.225822 -.157 .027 -62.7 -4.7 AUG 31 52517 .25357 .27908 -.225801 .018 -.084 -62.8 -4.8 SEP 1 52518 .25280 .27604 -.225661 .311 -.203 -62.9 -4.9 SEP 2 52519 .25162 .27282 -.225409 .688 -.274 -62.8 -5.1 SEP 3 52520 .25015 .26964 -.225138 1.091 -.234 -62.8 -5.1 SEP 4 52521 .24898 .26656 -.224976 1.429 -.094 -62.6 -5.1 SEP 5 52522 .24828 .26356 -.224985 1.597 .085 -62.5 -5.0 SEP 6 52523 .24748 .26056 -.225169 1.507 .355 -62.5 -4.9 SEP 7 52524 .24625 .25793 -.225694 1.128 .701 -62.5 -4.8 SEP 8 52525 .24464 .25565 -.226541 .507 .965 -62.5 -4.7 SEP 9 52526 .24278 .25321 -.227574 -.235 1.064 -62.7 -4.6 SEP 10 52527 .24100 .25051 -.228615 -.938 .958 -62.9 -4.5 SEP 11 52528 .23934 .24797 -.229450 -1.458 .685 -63.1 -4.5 SEP 12 52529 .23754 .24548 -.229968 -1.711 .419 -63.3 -4.6 SEP 13 52530 .23581 .24267 -.230295 -1.683 .225 -63.2 -4.8 SEP 14 52531 .23422 .23960 -.230443 -1.427 .063 -63.0 -5.1 SEP 15 52532 .23288 .23674 -.230453 -1.030 -.032 -62.6 -5.4 SEP 16 52533 .23170 .23452 -.230409 -.589 -.043 -62.0 -5.6 SEP 17 52534 .23014 .23264 -.230392 -.188 .003 -61.6 -5.5 SEP 18 52535 .22797 .23087 -.230430 .117 .071 -61.3 -5.2 SEP 19 52536 .22535 .22915 -.230541 .291 .171 -61.8 -4.3 SEP 20 52537 .22241 .22714 -.230770 .332 .285 -61.7 -3.8 SEP 21 52538 .21949 .22497 -.231101 .257 .374 -61.7 -3.4 SEP 22 52539 .21678 .22267 -.231504 .105 .434 -61.9 -3.1 SEP 23 52540 .21440 .22030 -.231951 -.076 .454 -62.0 -2.9 SEP 24 52541 .21232 .21778 -.232393 -.230 .411 -62.2 -3.0 SEP 25 52542 .21055 .21540 -.232759 -.308 .292 -62.3 -3.2 IERS, B 176 (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" AUG 3 52489 .25302 .36152 -.227116 -61.63 -5.10 .02 .01 .03 .13 .05 AUG 8 52494 .25793 .34736 -.223870 -60.70 -5.39 .02 .02 .02 .09 .03 AUG 13 52499 .26066 .33373 -.224801 -62.49 -5.14 .01 .01 .02 .11 .04 AUG 18 52504 .25977 .32028 -.225565 -62.56 -5.33 .02 .02 .02 .07 .03 AUG 23 52509 .25676 .30535 -.224274 -62.56 -5.26 .02 .01 .02 .10 .04 AUG 28 52514 .25460 .28834 -.225481 -62.37 -4.61 .02 .02 .02 .08 .03 SEP 2 52519 .25161 .27286 -.225409 -62.83 -5.06 .02 .02 .03 .09 .03 SEP 7 52524 .24626 .25795 -.225693 -62.48 -4.75 .02 .02 .02 .08 .03 SEP 12 52529 .23755 .24550 -.229968 -63.29 -4.67 .01 .02 .02 .09 .04 SEP 17 52534 .23015 .23264 -.230391 - - .01 .01 .02 - - SEP 22 52539 .21677 .22270 -.231497 -62.37 -3.95 .01 .02 .03 .23 .09 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) AUG 3 52489 -.00035 72.921 15176 AUG 8 52494 -.00031 15173 AUG 13 52499 -.00008 15154 AUG 18 52504 .00006 15142 AUG 23 52509 .00012 15137 AUG 28 52514 .00019 15130 5 - INFORMATION ON TIME SCALES No leap second will be introduced in UTC on 31 December 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 176 (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 .11 .10 .04 - .17 .07 12 52488.27 to 52530.27 .25 .21 .07 - .18 .07 EOP(BKG) 1 R 03 .12 .10 .04 - .17 .07 12 52488.00 to 52530.00 .31 .24 .08 - .20 .15 EOP(BKG) 1 R 02 - - .09 - - - 30 52488.81 to 52541.79 - - .09 - - - EOP(GSFC) 2 R 02 .10 .08 .03 - .19 .08 14 52488.27 to 52537.27 .21 .14 .07 - .24 .31 EOP(GSFC) 2 R 01 - - .12 - - - 30 52488.81 to 52541.79 - - .13 - - - EOP(IAA) 2 R 01 .08 .07 .03 - .16 .07 12 52488.27 to 52530.27 .16 .28 .10 - .13 .06 EOP(IAA) 2 R 02 - - .11 - - - 36 52488.81 to 52541.79 - - .12 - - - EOP(SPBU) 1 R 02 .13 .12 .04 - .23 .09 12 52488.27 to 52530.27 .67 .22 .12 - .34 .12 EOP(SPBU) 2 R 01 - - .12 - - - 28 52488.81 to 52537.81 - - .11 - - - EOP(USNO) 2 R 01 .10 .09 .03 - .19 .08 11 52488.27 to 52523.27 .15 .20 .04 - .13 .09 GPS EOP(CODE) 98 P 01 .01 .01 - .35 - - 55 52487.50 to 52541.50 .05 .14 - .23 - - EOP(EMR) 96 P 03 .03 .03 - .04 - - 52 52487.50 to 52538.50 .10 .20 - .22 - - EOP(ESOC) 96 P 01 .02 .02 - .02 - - 55 52487.50 to 52541.50 .10 .16 - .23 - - EOP(GFZ) 96 P 02 .01 .01 - .02 - - 55 52487.50 to 52541.50 .07 .10 - .28 - - EOP(IAA) 1 P 01 .03 .03 - .06 - - 55 52487.50 to 52541.50 .14 .15 - .35 - - EOP(JPL) 96 P 03 .03 .03 - .16 - - 54 52487.50 to 52540.50 .10 .09 - .31 - - EOP(NOAA) 96 P 01 .02 .02 - .10 - - 55 52487.50 to 52541.50 .23 .43 - .75 - - EOP(SIO) 96 P 01 .07 .08 - .18 - - 53 52487.50 to 52539.50 .10 .11 - .35 - - EOP(IGS F)95 P 02 .03 .03 .09 .06 - - 45 52487.50 to 52531.50 .03 .11 .25 .19 - - EOP(IGS R)96 P 02 .05 .04 .19 .06 - - 55 52487.50 to 52541.50 .11 .18 .52 .22 - - EOP(IERS) 97 P 01 .04 .04 .23 .16 - - 55 52487.50 to 52541.50 .02 .02 .23 .20 - - SLR EOP(CGS) 97 L 02 .18 .17 .17 - - - 56 52487.00 to 52542.00 .54 .39 1.34 - - - EOP(CSR) 95 L 01 .25 .25 .23 - - - 19 52487.98 to 52541.28 .48 .32 .76 - - - EOP(DUT) 98 L 01 .10 .09 - - - - 19 52488.00 to 52542.00 .45 .31 - - - - EOP(IAA) 2 L 01 .04 .04 .02 .02 - - 56 52487.00 to 52542.00 .12 .20 .26 .15 - - EOP(MCC) 97 L 01 .05 .05 - .07 - - 56 52487.00 to 52542.00 .11 .12 - .47 - - Bulletin A EOP(NEOS) 97 C 01 .05 .06 .07 - - - 56 52487.00 to 52542.00 .06 .08 .20 - - - 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.