BULLETIN B 238 30 November 2007 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 2007 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. OCT 1 54374 0.13362 0.20648 -0.185790 -33.185790 -68.0 -5.9 OCT 6 54379 0.11862 0.20056 -0.190383 -33.190383 -66.7 -5.9 OCT 11 54384 0.10331 0.19594 -0.194298 -33.194298 -66.4 -4.7 OCT 16 54389 0.08894 0.19257 -0.198785 -33.198785 -65.7 -5.8 OCT 21 54394 0.07344 0.19053 -0.203668 -33.203668 -65.4 -5.4 OCT 26 54399 0.06157 0.19014 -0.208079 -33.208079 -65.6 -5.1 OCT 31 54404 0.04779 0.19100 -0.212423 -33.212423 -64.6 -4.9 NOV 5 54409 0.03593 0.19258 -0.216363 -33.216363 -63.8 -4.1 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. NOV 10 54414 0.02530 0.19346 -0.220665 -33.220665 -63.5 -4.4 NOV 15 54419 0.01111 0.19548 -0.225231 -33.225231 -62.5 -4.4 NOV 20 54424 -0.00423 0.19940 -0.230924 -33.230924 -62.0 -4.0 NOV 25 54429 -0.01815 0.20487 -0.237792 -33.237792 -61.7 -4.1 NOV 30 54434 -0.02957 0.20937 -0.244152 -33.244152 -61.4 -3.7 DEC 5 54439 -0.04315 0.21662 -0.250445 -33.250445 -61.3 -3.1 DEC 10 54444 -0.05790 0.22449 -0.256805 -33.256805 -61.4 -3.6 DEC 15 54449 -0.07176 0.23312 -0.263012 -33.263012 -60.2 -3.2 DEC 20 54454 -0.08243 0.24349 -0.269083 -33.269083 -60.7 -2.7 DEC 25 54459 -0.09432 0.25334 -0.275000 -33.275000 -59.8 -3.0 DEC 30 54464 -0.10598 0.26559 -0.280770 -33.280770 -59.9 -2.8 JAN 4 54469 -0.11451 0.27820 -0.286431 -33.286431 -60.0 -2.9 JAN 9 54474 -0.12396 0.29202 -0.291971 -33.291971 -60.0 -3.0 JAN 14 54479 -0.13281 0.30484 -0.297450 -33.297450 -59.6 -3.0 JAN 19 54484 -0.13867 0.31815 -0.302924 -33.302924 -60.5 -2.9 JAN 24 54489 -0.14220 0.33250 -0.308367 -33.308367 -58.7 -2.8 JAN 29 54494 -0.14568 0.34706 -0.313853 -33.313853 -59.9 -3.4 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 238 (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 2006 IERS Annual Report. 2007 MJD x y UT1-UTC UT1-UT1R D dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" OCT 1 54374 0.13362 0.20648 -0.187140 -1.351 0.696 -68.0 -5.9 OCT 2 54375 0.13060 0.20526 -0.187705 -0.967 0.545 -68.0 -5.9 OCT 3 54376 0.12755 0.20402 -0.188281 -0.496 0.524 -67.9 -6.0 OCT 4 54377 0.12456 0.20289 -0.188837 -0.071 0.553 -67.6 -6.1 OCT 5 54378 0.12158 0.20167 -0.189386 0.212 0.656 -67.2 -6.1 OCT 6 54379 0.11862 0.20056 -0.190073 0.310 0.785 -66.7 -5.9 OCT 7 54380 0.11570 0.19937 -0.190951 0.226 0.920 -66.3 -5.7 OCT 8 54381 0.11282 0.19827 -0.191937 -0.002 1.031 -66.0 -5.4 OCT 9 54382 0.10981 0.19756 -0.192980 -0.312 1.063 -66.0 -5.1 OCT 10 54383 0.10663 0.19681 -0.194052 -0.628 1.102 -66.1 -4.9 OCT 11 54384 0.10331 0.19594 -0.195178 -0.880 1.056 -66.4 -4.7 OCT 12 54385 0.10023 0.19505 -0.196171 -1.006 0.928 -66.3 -4.9 OCT 13 54386 0.09755 0.19429 -0.197023 -0.965 0.778 -66.2 -5.2 OCT 14 54387 0.09488 0.19359 -0.197700 -0.745 0.590 -66.0 -5.5 OCT 15 54388 0.09204 0.19300 -0.198228 -0.362 0.456 -65.9 -5.7 OCT 16 54389 0.08894 0.19257 -0.198641 0.144 0.390 -65.7 -5.8 OCT 17 54390 0.08587 0.19217 -0.199025 0.710 0.419 -65.7 -6.0 OCT 18 54391 0.08299 0.19187 -0.199516 1.261 0.495 -65.7 -6.0 OCT 19 54392 0.07990 0.19149 -0.200043 1.712 0.636 -65.6 -5.9 OCT 20 54393 0.07664 0.19104 -0.200749 1.978 0.843 -65.5 -5.6 OCT 21 54394 0.07344 0.19053 -0.201681 1.987 1.022 -65.4 -5.4 OCT 22 54395 0.07076 0.19015 -0.202833 1.700 1.246 -65.4 -5.4 OCT 23 54396 0.06861 0.19017 -0.204217 1.139 1.522 -65.4 -5.4 OCT 24 54397 0.06643 0.19043 -0.205841 0.398 1.687 -65.5 -5.2 OCT 25 54398 0.06410 0.19040 -0.207538 -0.368 1.626 -65.6 -5.0 OCT 26 54399 0.06157 0.19014 -0.209065 -0.986 1.378 -65.6 -5.1 OCT 27 54400 0.05887 0.19017 -0.210262 -1.321 0.997 -65.4 -5.3 OCT 28 54401 0.05621 0.19028 -0.211047 -1.327 0.692 -65.0 -5.3 OCT 29 54402 0.05346 0.19042 -0.211646 -1.057 0.532 -64.9 -5.1 OCT 30 54403 0.05067 0.19072 -0.212159 -0.639 0.486 -64.9 -4.9 OCT 31 54404 0.04779 0.19100 -0.212646 -0.223 0.526 -64.6 -4.9 NOV 1 54405 0.04482 0.19106 -0.213221 0.073 0.611 -64.0 -5.0 NOV 2 54406 0.04229 0.19111 -0.213922 0.189 0.768 -63.6 -4.9 NOV 3 54407 0.04033 0.19149 -0.214740 0.120 0.924 -63.5 -4.6 NOV 4 54408 0.03827 0.19216 -0.215723 -0.094 1.017 -63.7 -4.3 NOV 5 54409 0.03593 0.19258 -0.216755 -0.392 1.031 -63.8 -4.1 NOV 6 54410 0.03401 0.19279 -0.217788 -0.707 1.049 -63.7 -4.0 NOV 7 54411 0.03231 0.19309 -0.218853 -0.969 1.066 -63.4 -3.9 NOV 8 54412 0.03022 0.19327 -0.219912 -1.121 1.006 -63.2 -3.9 NOV 9 54413 0.02782 0.19344 -0.220843 -1.117 0.854 -63.2 -4.1 NOV 10 54414 0.02530 0.19346 -0.221602 -0.937 0.649 -63.5 -4.4 NOV 11 54415 0.02278 0.19356 -0.222172 -0.589 0.492 -63.8 -4.6 NOV 12 54416 0.01999 0.19418 -0.222599 -0.107 0.368 -63.8 -4.7 NOV 13 54417 0.01696 0.19472 -0.222899 0.451 0.325 -63.4 -4.6 NOV 14 54418 0.01406 0.19495 -0.223271 1.015 0.390 -62.8 -4.5 NOV 15 54419 0.01111 0.19548 -0.223727 1.504 0.585 -62.5 -4.4 NOV 16 54420 0.00791 0.19613 -0.224438 1.840 0.864 -62.4 -4.4 NOV 17 54421 0.00459 0.19644 -0.225433 1.959 1.122 -62.3 -4.3 NOV 18 54422 0.00137 0.19704 -0.226683 1.817 1.403 -62.1 -4.1 NOV 19 54423 -0.00154 0.19815 -0.228278 1.415 1.700 -62.1 -4.1 NOV 20 54424 -0.00423 0.19940 -0.230116 0.808 1.928 -62.0 -4.0 NOV 21 54425 -0.00694 0.20073 -0.232110 0.109 1.993 -62.2 -3.9 NOV 22 54426 -0.00946 0.20224 -0.234112 -0.532 1.922 -62.5 -3.7 IERS, B 238 (3) 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 2007 MJD x y UT1-UTC dPsi dEps x y UT1 dPsi dEps (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" OCT 1 54374 0.13363 0.20646 -0.187136 -67.92 -5.87 0.02 0.02 0.02 0.15 0.05 OCT 6 54379 0.11862 0.20053 -0.190072 -66.79 -5.94 0.02 0.02 0.06 0.84 0.29 OCT 11 54384 0.10330 0.19595 -0.195177 -66.36 -4.66 0.01 0.02 0.02 0.12 0.04 OCT 16 54389 0.08895 0.19253 -0.198639 -65.79 -5.83 0.02 0.02 0.02 0.14 0.05 OCT 21 54394 0.07342 0.19051 -0.201681 -65.36 -5.40 0.01 0.01 0.01 0.11 0.04 OCT 26 54399 0.06155 0.19013 -0.209061 -65.67 -5.09 0.01 0.01 0.02 0.19 0.07 OCT 31 54404 0.04778 0.19100 -0.212639 -64.66 -4.85 0.01 0.01 0.03 0.21 0.08 NOV 5 54409 0.03596 0.19259 -0.216756 - - 0.02 0.02 0.05 - - NOV 10 54414 0.02529 0.19355 -0.221602 - - 0.02 0.03 0.06 - - 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 2007 MJD s (microrad/s) OCT 1 54374 0.00099 72.921 15063 OCT 6 54379 0.00079 15080 OCT 11 54384 0.00086 15074 OCT 16 54389 0.00094 15067 OCT 21 54394 0.00089 15072 OCT 26 54399 0.00089 15072 OCT 31 54404 0.00090 15070 NOV 5 54409 0.00072 15086 5 - INFORMATION ON TIME SCALES No leap second will be introduced in UTC on 31 December 2007. 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 238 (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 1 0.06 0.07 0.03 - 0.14 0.06 13 54375.21 to 54417.21 0.50 0.25 0.17 - 0.23 0.09 EOP(BKG) 3 R 4 0.07 0.07 0.05 - 0.12 0.05 15 54375.21 to 54417.21 0.09 0.10 0.06 - 0.09 0.06 EOP(BKG) 3 R 2 - - 0.09 - - - 54 54374.31 to 54425.80 - - 0.10 - - - EOP(USNO) 5 R 1 - - 0.08 - - - 55 54374.31 to 54425.80 - - 0.12 - - - EOP(GSFC) 6 R 1 - - 0.09 - - - 54 54374.31 to 54425.80 - - 0.10 - - - EOP(IAA) 5 R 2 0.05 0.06 0.03 - - - 14 54375.21 to 54417.21 0.07 0.09 0.05 - - - EOP(IAA) 5 R 1 - - 0.09 - - - 52 54374.31 to 54425.80 - - 0.12 - - - EOP(MAO) 3 R 1 0.06 0.08 0.04 - - - 13 54375.22 to 54413.29 0.07 0.10 0.04 - - - EOP(GSFC) 6 R 1 0.08 0.07 0.06 - 0.14 0.06 15 54375.21 to 54417.21 0.20 0.42 0.05 - 0.08 0.05 EOP(USNO) 6 R 2 0.06 0.07 0.03 - 0.15 0.06 9 54375.21 to 54404.27 0.08 0.09 0.03 - 0.07 0.04 EOP(IVS) 7 R 1 0.04 0.04 0.02 - 0.25 0.04 12 54375.21 to 54413.27 0.06 0.11 0.03 - 0.07 0.04 GPS EOP(CODE) 98 P 1 0.01 0.01 - 0.07 - - 52 54374.50 to 54425.50 0.03 0.04 - 0.13 - - EOP(EMR) 96 P 3 0.03 0.03 - 0.04 - - 52 54374.50 to 54425.50 0.07 0.04 - 0.20 - - EOP(ESOC) 96 P 1 0.01 0.01 - 0.04 - - 52 54374.50 to 54425.50 0.04 0.07 - 0.29 - - EOP(GFZ) 96 P 2 0.01 0.01 - 0.01 - - 10 54374.50 to 54383.50 0.05 0.06 - 0.12 - - EOP(IAA) 1 P 1 0.03 0.03 - 0.06 - - 52 54374.50 to 54425.50 0.16 0.33 - 0.34 - - EOP(JPL) 96 P 3 0.01 0.01 - 0.07 - - 48 54374.50 to 54421.50 0.08 0.15 - 3.95 - - EOP(NOAA) 96 P 1 0.01 0.01 - 0.01 - - 49 54374.50 to 54422.50 0.09 0.05 - 0.15 - - EOP(SIO) 96 P 1 0.03 0.04 - 0.10 - - 52 54374.50 to 54425.50 0.04 0.05 - 0.15 - - EOP(IGS R)96 P 2 0.02 0.03 0.14 0.04 - - 52 54374.50 to 54425.50 0.04 0.04 0.39 0.11 - - EOP(IGS) 0 P 3 0.02 0.02 0.09 0.07 - - 48 54374.50 to 54421.50 0.01 0.02 0.24 0.10 - - EOP(IERS) 97 P 1 0.03 0.03 0.15 0.09 - - 45 54374.50 to 54418.50 0.06 0.03 0.18 0.13 - - SLR EOP(ASI) 3 L 2 0.07 0.07 - 0.18 - - 52 54374.50 to 54425.50 0.25 0.22 - 0.60 - - EOP(IAA) 2 L 1 0.04 0.04 0.02 0.02 - - 53 54374.00 to 54426.00 0.13 0.18 0.39 0.23 - - EOP(MCC) 97 L 1 0.15 0.16 - 0.10 - - 46 54374.00 to 54426.00 0.12 0.12 - 2.37 - - EOP(ILRS) 5 L 1 0.06 0.06 - 0.14 - - 52 54374.50 to 54425.50 0.25 0.19 - 0.45 - - Bulletin A EOP(NEOS) 97 C 1 0.05 0.06 0.07 - - - 53 54374.00 to 54426.00 0.06 0.08 0.17 - - -