********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 April 2005 Vol. XVIII No. 017 ______________________________________________________________________ GENERAL INFORMATION: To receive this information electronically, contact: ser7@maia.usno.navy.mil or use http://maia.usno.navy.mil/ MJD = Julian Date - 2 400 000.5 days UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T) - 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T) where pi = 3.14159265... and T is the date in Besselian years. TT = TAI + 32.184 seconds DUT1= (UT1-UTC) transmitted with time signals = -0.6 seconds beginning 17 March 2005 at 0000 UTC Beginning 1 January 1999: TAI-UTC(BIPM) = 32.000 000 seconds ********************************************************************** * No leap second will be introduced in UTC on 30 June 2005. * * New USNO VLBI Intensive Series was added on 04 November 2004. * * Bulletin A is now compliant with IAU 2000 resolutions. * * See notice at the end of this Bulletin A for more details. * ********************************************************************** ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at ftp://maia.usno.navy.mil/bulla-data.html. The contributed analysis results are based on data from Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and meteorological predictions of variations in Atmospheric Angular Momentum (AAM). ________________________________________________________________________ COMBINED EARTH ORIENTATION PARAMETERS: IERS Rapid Service MJD x error y error UT1-UTC error " " " " s s 5 4 22 53482 -.05578 .00005 .27836 .00004 -.588758 .000018 5 4 23 53483 -.05677 .00005 .28069 .00005 -.590194 .000018 5 4 24 53484 -.05767 .00005 .28303 .00005 -.591617 .000020 5 4 25 53485 -.05839 .00004 .28500 .00004 -.592917 .000020 5 4 26 53486 -.05881 .00004 .28667 .00004 -.594017 .000020 5 4 27 53487 -.05882 .00003 .28833 .00004 -.594857 .000019 5 4 28 53488 -.05856 .00003 .29012 .00004 -.595498 .000015 _______________________________________________________________________ PREDICTIONS: The following formulas will not reproduce the predictions given below, but may be used to extend the predictions beyond the end of this table. x = .0566 - .0391 cos A + .0497 sin A - .0677 cos C - .1161 sin C y = .3497 + .0475 cos A + .0423 sin A - .1161 cos C + .0677 sin C UT1-UTC = -.5707 - .00036 (MJD - 53493) - (UT2-UT1) where A = 2*pi*(MJD-53488)/365.25 and C = 2*pi*(MJD-53488)/435. TAI-UTC(MJD 53489) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53488)**0.80 S t = 0.00025 (MJD-53488)**0.75 Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d Polar coord's 0.004 0.007 0.010 0.013 UT1-UTC 0.0014 0.0024 0.0032 0.0040 MJD x(arcsec) y(arcsec) UT1-UTC(sec) 2005 4 29 53489 -0.0584 0.2919 -0.59605 2005 4 30 53490 -0.0583 0.2937 -0.59661 2005 5 1 53491 -0.0583 0.2954 -0.59733 2005 5 2 53492 -0.0584 0.2971 -0.59832 2005 5 3 53493 -0.0585 0.2987 -0.59957 2005 5 4 53494 -0.0587 0.3004 -0.60100 2005 5 5 53495 -0.0589 0.3021 -0.60248 2005 5 6 53496 -0.0592 0.3037 -0.60393 2005 5 7 53497 -0.0595 0.3054 -0.60521 2005 5 8 53498 -0.0598 0.3070 -0.60625 2005 5 9 53499 -0.0602 0.3087 -0.60698 2005 5 10 53500 -0.0605 0.3103 -0.60744 2005 5 11 53501 -0.0609 0.3120 -0.60769 2005 5 12 53502 -0.0613 0.3137 -0.60779 2005 5 13 53503 -0.0617 0.3154 -0.60783 2005 5 14 53504 -0.0620 0.3170 -0.60785 2005 5 15 53505 -0.0624 0.3187 -0.60793 2005 5 16 53506 -0.0628 0.3204 -0.60813 2005 5 17 53507 -0.0632 0.3221 -0.60846 2005 5 18 53508 -0.0635 0.3238 -0.60894 2005 5 19 53509 -0.0638 0.3255 -0.60952 2005 5 20 53510 -0.0642 0.3272 -0.61015 2005 5 21 53511 -0.0645 0.3289 -0.61076 2005 5 22 53512 -0.0647 0.3306 -0.61125 2005 5 23 53513 -0.0650 0.3323 -0.61153 2005 5 24 53514 -0.0652 0.3340 -0.61155 2005 5 25 53515 -0.0654 0.3357 -0.61133 2005 5 26 53516 -0.0656 0.3374 -0.61095 2005 5 27 53517 -0.0658 0.3391 -0.61055 2005 5 28 53518 -0.0659 0.3408 -0.61028 2005 5 29 53519 -0.0661 0.3425 -0.61024 2005 5 30 53520 -0.0661 0.3442 -0.61044 2005 5 31 53521 -0.0662 0.3459 -0.61086 2005 6 1 53522 -0.0662 0.3476 -0.61139 2005 6 2 53523 -0.0662 0.3493 -0.61194 2005 6 3 53524 -0.0662 0.3510 -0.61239 2005 6 4 53525 -0.0661 0.3527 -0.61266 2005 6 5 53526 -0.0660 0.3543 -0.61270 2005 6 6 53527 -0.0659 0.3560 -0.61252 2005 6 7 53528 -0.0658 0.3577 -0.61215 2005 6 8 53529 -0.0656 0.3593 -0.61167 2005 6 9 53530 -0.0654 0.3610 -0.61114 2005 6 10 53531 -0.0651 0.3626 -0.61065 2005 6 11 53532 -0.0648 0.3643 -0.61026 2005 6 12 53533 -0.0645 0.3659 -0.61002 2005 6 13 53534 -0.0642 0.3676 -0.60996 2005 6 14 53535 -0.0639 0.3692 -0.61006 2005 6 15 53536 -0.0635 0.3708 -0.61030 2005 6 16 53537 -0.0630 0.3724 -0.61063 2005 6 17 53538 -0.0626 0.3740 -0.61096 2005 6 18 53539 -0.0621 0.3756 -0.61123 2005 6 19 53540 -0.0616 0.3772 -0.61132 2005 6 20 53541 -0.0611 0.3788 -0.61118 2005 6 21 53542 -0.0605 0.3804 -0.61080 2005 6 22 53543 -0.0599 0.3819 -0.61024 2005 6 23 53544 -0.0593 0.3835 -0.60964 2005 6 24 53545 -0.0587 0.3850 -0.60914 2005 6 25 53546 -0.0580 0.3866 -0.60886 2005 6 26 53547 -0.0573 0.3881 -0.60886 2005 6 27 53548 -0.0566 0.3896 -0.60909 2005 6 28 53549 -0.0558 0.3911 -0.60945 2005 6 29 53550 -0.0551 0.3926 -0.60979 2005 6 30 53551 -0.0543 0.3941 -0.61000 2005 7 1 53552 -0.0534 0.3955 -0.60998 2005 7 2 53553 -0.0526 0.3970 -0.60971 2005 7 3 53554 -0.0517 0.3984 -0.60918 2005 7 4 53555 -0.0508 0.3999 -0.60845 2005 7 5 53556 -0.0499 0.4013 -0.60756 2005 7 6 53557 -0.0490 0.4027 -0.60662 2005 7 7 53558 -0.0480 0.4041 -0.60568 2005 7 8 53559 -0.0471 0.4055 -0.60483 2005 7 9 53560 -0.0461 0.4069 -0.60413 2005 7 10 53561 -0.0450 0.4082 -0.60360 2005 7 11 53562 -0.0440 0.4096 -0.60324 2005 7 12 53563 -0.0429 0.4109 -0.60303 2005 7 13 53564 -0.0419 0.4122 -0.60292 2005 7 14 53565 -0.0408 0.4135 -0.60286 2005 7 15 53566 -0.0397 0.4148 -0.60276 2005 7 16 53567 -0.0385 0.4161 -0.60256 2005 7 17 53568 -0.0374 0.4173 -0.60218 2005 7 18 53569 -0.0362 0.4185 -0.60158 2005 7 19 53570 -0.0350 0.4198 -0.60079 2005 7 20 53571 -0.0338 0.4210 -0.59992 2005 7 21 53572 -0.0326 0.4222 -0.59910 2005 7 22 53573 -0.0314 0.4233 -0.59849 2005 7 23 53574 -0.0302 0.4245 -0.59819 2005 7 24 53575 -0.0289 0.4256 -0.59817 2005 7 25 53576 -0.0276 0.4268 -0.59836 2005 7 26 53577 -0.0263 0.4279 -0.59860 2005 7 27 53578 -0.0251 0.4290 -0.59873 2005 7 28 53579 -0.0237 0.4300 -0.59865 2005 7 29 53580 -0.0224 0.4311 -0.59831 2005 7 30 53581 -0.0211 0.4321 -0.59771 2005 7 31 53582 -0.0198 0.4331 -0.59690 2005 8 1 53583 -0.0184 0.4341 -0.59594 2005 8 2 53584 -0.0171 0.4351 -0.59492 2005 8 3 53585 -0.0157 0.4361 -0.59390 2005 8 4 53586 -0.0143 0.4370 -0.59297 2005 8 5 53587 -0.0129 0.4380 -0.59219 2005 8 6 53588 -0.0115 0.4389 -0.59158 2005 8 7 53589 -0.0101 0.4398 -0.59115 2005 8 8 53590 -0.0087 0.4406 -0.59089 2005 8 9 53591 -0.0073 0.4415 -0.59074 2005 8 10 53592 -0.0059 0.4423 -0.59065 2005 8 11 53593 -0.0044 0.4431 -0.59055 2005 8 12 53594 -0.0032 0.4439 -0.59040 2005 8 13 53595 -0.0018 0.4447 -0.59010 2005 8 14 53596 -0.0003 0.4454 -0.58962 2005 8 15 53597 0.0012 0.4461 -0.58897 2005 8 16 53598 0.0026 0.4468 -0.58821 2005 8 17 53599 0.0041 0.4475 -0.58747 2005 8 18 53600 0.0056 0.4482 -0.58689 2005 8 19 53601 0.0071 0.4488 -0.58661 2005 8 20 53602 0.0085 0.4494 -0.58668 2005 8 21 53603 0.0100 0.4500 -0.58704 2005 8 22 53604 0.0115 0.4506 -0.58754 2005 8 23 53605 0.0130 0.4511 -0.58803 2005 8 24 53606 0.0145 0.4517 -0.58834 2005 8 25 53607 0.0160 0.4522 -0.58838 2005 8 26 53608 0.0174 0.4527 -0.58814 2005 8 27 53609 0.0189 0.4531 -0.58766 2005 8 28 53610 0.0204 0.4536 -0.58702 2005 8 29 53611 0.0219 0.4540 -0.58629 2005 8 30 53612 0.0234 0.4544 -0.58558 2005 8 31 53613 0.0249 0.4548 -0.58495 2005 9 1 53614 0.0264 0.4551 -0.58446 2005 9 2 53615 0.0278 0.4555 -0.58416 2005 9 3 53616 0.0293 0.4558 -0.58406 2005 9 4 53617 0.0308 0.4560 -0.58416 2005 9 5 53618 0.0323 0.4563 -0.58440 2005 9 6 53619 0.0337 0.4565 -0.58472 2005 9 7 53620 0.0352 0.4568 -0.58506 2005 9 8 53621 0.0367 0.4570 -0.58532 2005 9 9 53622 0.0381 0.4571 -0.58544 2005 9 10 53623 0.0396 0.4573 -0.58539 2005 9 11 53624 0.0411 0.4574 -0.58517 2005 9 12 53625 0.0425 0.4575 -0.58483 2005 9 13 53626 0.0439 0.4576 -0.58447 2005 9 14 53627 0.0454 0.4576 -0.58423 2005 9 15 53628 0.0468 0.4577 -0.58424 2005 9 16 53629 0.0482 0.4577 -0.58458 2005 9 17 53630 0.0497 0.4577 -0.58526 2005 9 18 53631 0.0511 0.4576 -0.58618 2005 9 19 53632 0.0525 0.4576 -0.58717 2005 9 20 53633 0.0539 0.4575 -0.58807 2005 9 21 53634 0.0553 0.4574 -0.58873 2005 9 22 53635 0.0567 0.4572 -0.58911 2005 9 23 53636 0.0581 0.4571 -0.58921 2005 9 24 53637 0.0594 0.4569 -0.58910 2005 9 25 53638 0.0608 0.4567 -0.58887 2005 9 26 53639 0.0622 0.4565 -0.58863 2005 9 27 53640 0.0635 0.4563 -0.58844 2005 9 28 53641 0.0649 0.4560 -0.58839 2005 9 29 53642 0.0662 0.4557 -0.58852 2005 9 30 53643 0.0675 0.4554 -0.58884 2005 10 1 53644 0.0688 0.4551 -0.58937 2005 10 2 53645 0.0701 0.4547 -0.59005 2005 10 3 53646 0.0714 0.4543 -0.59084 2005 10 4 53647 0.0727 0.4539 -0.59166 2005 10 5 53648 0.0740 0.4535 -0.59242 2005 10 6 53649 0.0753 0.4531 -0.59304 2005 10 7 53650 0.0765 0.4526 -0.59348 2005 10 8 53651 0.0778 0.4522 -0.59373 2005 10 9 53652 0.0790 0.4517 -0.59382 2005 10 10 53653 0.0803 0.4511 -0.59386 2005 10 11 53654 0.0815 0.4506 -0.59395 2005 10 12 53655 0.0827 0.4500 -0.59424 2005 10 13 53656 0.0839 0.4495 -0.59481 2005 10 14 53657 0.0851 0.4489 -0.59570 2005 10 15 53658 0.0863 0.4482 -0.59686 2005 10 16 53659 0.0874 0.4476 -0.59817 2005 10 17 53660 0.0886 0.4469 -0.59945 2005 10 18 53661 0.0897 0.4463 -0.60057 2005 10 19 53662 0.0908 0.4456 -0.60142 2005 10 20 53663 0.0920 0.4448 -0.60198 2005 10 21 53664 0.0931 0.4441 -0.60228 2005 10 22 53665 0.0942 0.4434 -0.60242 2005 10 23 53666 0.0953 0.4426 -0.60249 2005 10 24 53667 0.0963 0.4418 -0.60259 2005 10 25 53668 0.0974 0.4410 -0.60280 2005 10 26 53669 0.0984 0.4402 -0.60317 2005 10 27 53670 0.0995 0.4393 -0.60373 2005 10 28 53671 0.1005 0.4385 -0.60449 2005 10 29 53672 0.1015 0.4376 -0.60542 2005 10 30 53673 0.1025 0.4367 -0.60647 2005 10 31 53674 0.1035 0.4358 -0.60758 2005 11 1 53675 0.1044 0.4349 -0.60865 2005 11 2 53676 0.1054 0.4340 -0.60960 2005 11 3 53677 0.1063 0.4330 -0.61034 2005 11 4 53678 0.1073 0.4321 -0.61085 2005 11 5 53679 0.1082 0.4311 -0.61115 2005 11 6 53680 0.1092 0.4302 -0.61131 2005 11 7 53681 0.1101 0.4292 -0.61145 2005 11 8 53682 0.1110 0.4282 -0.61170 2005 11 9 53683 0.1119 0.4272 -0.61215 2005 11 10 53684 0.1127 0.4262 -0.61284 2005 11 11 53685 0.1136 0.4252 -0.61374 2005 11 12 53686 0.1144 0.4242 -0.61476 2005 11 13 53687 0.1153 0.4231 -0.61577 2005 11 14 53688 0.1161 0.4221 -0.61663 2005 11 15 53689 0.1169 0.4210 -0.61725 2005 11 16 53690 0.1177 0.4200 -0.61758 2005 11 17 53691 0.1185 0.4189 -0.61764 2005 11 18 53692 0.1192 0.4178 -0.61751 2005 11 19 53693 0.1200 0.4167 -0.61729 2005 11 20 53694 0.1207 0.4156 -0.61709 2005 11 21 53695 0.1214 0.4144 -0.61698 2005 11 22 53696 0.1221 0.4133 -0.61703 2005 11 23 53697 0.1228 0.4122 -0.61725 2005 11 24 53698 0.1235 0.4110 -0.61764 2005 11 25 53699 0.1241 0.4099 -0.61820 2005 11 26 53700 0.1248 0.4087 -0.61891 2005 11 27 53701 0.1254 0.4075 -0.61971 2005 11 28 53702 0.1260 0.4064 -0.62053 2005 11 29 53703 0.1266 0.4052 -0.62126 2005 11 30 53704 0.1272 0.4040 -0.62178 2005 12 1 53705 0.1278 0.4028 -0.62204 2005 12 2 53706 0.1283 0.4016 -0.62205 2005 12 3 53707 0.1289 0.4004 -0.62187 2005 12 4 53708 0.1294 0.3992 -0.62161 2005 12 5 53709 0.1299 0.3980 -0.62143 2005 12 6 53710 0.1304 0.3968 -0.62151 2005 12 7 53711 0.1309 0.3956 -0.62183 2005 12 8 53712 0.1313 0.3944 -0.62233 2005 12 9 53713 0.1318 0.3931 -0.62301 2005 12 10 53714 0.1322 0.3919 -0.62374 2005 12 11 53715 0.1326 0.3907 -0.62435 2005 12 12 53716 0.1330 0.3895 -0.62478 2005 12 13 53717 0.1334 0.3882 -0.62495 2005 12 14 53718 0.1338 0.3870 -0.62486 2005 12 15 53719 0.1341 0.3858 -0.62456 2005 12 16 53720 0.1345 0.3845 -0.62414 2005 12 17 53721 0.1348 0.3833 -0.62376 2005 12 18 53722 0.1351 0.3821 -0.62341 2005 12 19 53723 0.1354 0.3808 -0.62319 2005 12 20 53724 0.1356 0.3796 -0.62314 2005 12 21 53725 0.1359 0.3784 -0.62323 2005 12 22 53726 0.1361 0.3771 -0.62342 2005 12 23 53727 0.1364 0.3759 -0.62368 2005 12 24 53728 0.1366 0.3747 -0.62394 2005 12 25 53729 0.1368 0.3734 -0.62416 2005 12 26 53730 0.1370 0.3722 -0.62431 2005 12 27 53731 0.1371 0.3710 -0.62436 2005 12 28 53732 0.1373 0.3698 -0.62429 2005 12 29 53733 0.1374 0.3686 -0.62410 2005 12 30 53734 0.1375 0.3674 -0.62387 2005 12 31 53735 0.1376 0.3662 -0.62363 2006 1 1 53736 0.1377 0.3650 -0.62346 2006 1 2 53737 0.1378 0.3638 -0.62355 2006 1 3 53738 0.1378 0.3626 -0.62394 2006 1 4 53739 0.1379 0.3614 -0.62462 2006 1 5 53740 0.1379 0.3602 -0.62549 2006 1 6 53741 0.1379 0.3590 -0.62640 2006 1 7 53742 0.1379 0.3578 -0.62722 2006 1 8 53743 0.1379 0.3567 -0.62794 2006 1 9 53744 0.1378 0.3555 -0.62844 2006 1 10 53745 0.1378 0.3543 -0.62877 2006 1 11 53746 0.1377 0.3532 -0.62883 2006 1 12 53747 0.1376 0.3520 -0.62877 2006 1 13 53748 0.1375 0.3509 -0.62868 2006 1 14 53749 0.1374 0.3498 -0.62864 2006 1 15 53750 0.1373 0.3486 -0.62868 2006 1 16 53751 0.1371 0.3475 -0.62884 2006 1 17 53752 0.1370 0.3464 -0.62917 2006 1 18 53753 0.1368 0.3453 -0.62964 2006 1 19 53754 0.1366 0.3442 -0.63023 2006 1 20 53755 0.1364 0.3431 -0.63092 2006 1 21 53756 0.1362 0.3420 -0.63168 2006 1 22 53757 0.1360 0.3410 -0.63239 2006 1 23 53758 0.1357 0.3399 -0.63306 2006 1 24 53759 0.1354 0.3388 -0.63352 2006 1 25 53760 0.1352 0.3378 -0.63383 2006 1 26 53761 0.1349 0.3368 -0.63397 2006 1 27 53762 0.1346 0.3357 -0.63399 2006 1 28 53763 0.1342 0.3347 -0.63399 2006 1 29 53764 0.1339 0.3337 -0.63412 2006 1 30 53765 0.1336 0.3327 -0.63456 2006 1 31 53766 0.1332 0.3317 -0.63536 2006 2 1 53767 0.1328 0.3307 -0.63646 2006 2 2 53768 0.1324 0.3297 -0.63766 2006 2 3 53769 0.1320 0.3287 -0.63878 2006 2 4 53770 0.1316 0.3278 -0.63970 2006 2 5 53771 0.1312 0.3268 -0.64032 2006 2 6 53772 0.1307 0.3259 -0.64064 2006 2 7 53773 0.1303 0.3249 -0.64071 2006 2 8 53774 0.1298 0.3240 -0.64062 2006 2 9 53775 0.1293 0.3231 -0.64048 2006 2 10 53776 0.1288 0.3222 -0.64035 2006 2 11 53777 0.1283 0.3213 -0.64033 2006 2 12 53778 0.1278 0.3204 -0.64045 2006 2 13 53779 0.1272 0.3195 -0.64076 2006 2 14 53780 0.1267 0.3187 -0.64121 2006 2 15 53781 0.1261 0.3178 -0.64182 2006 2 16 53782 0.1256 0.3169 -0.64255 2006 2 17 53783 0.1250 0.3161 -0.64333 2006 2 18 53784 0.1244 0.3153 -0.64404 2006 2 19 53785 0.1238 0.3145 -0.64464 2006 2 20 53786 0.1232 0.3136 -0.64505 2006 2 21 53787 0.1225 0.3128 -0.64527 2006 2 22 53788 0.1219 0.3120 -0.64535 2006 2 23 53789 0.1212 0.3113 -0.64530 2006 2 24 53790 0.1206 0.3105 -0.64520 2006 2 25 53791 0.1199 0.3097 -0.64522 2006 2 26 53792 0.1192 0.3090 -0.64548 2006 2 27 53793 0.1186 0.3082 -0.64610 2006 2 28 53794 0.1179 0.3075 -0.64710 2006 3 1 53795 0.1171 0.3068 -0.64834 2006 3 2 53796 0.1164 0.3061 -0.64962 2006 3 3 53797 0.1157 0.3054 -0.65077 2006 3 4 53798 0.1150 0.3047 -0.65172 2006 3 5 53799 0.1142 0.3040 -0.65245 2006 3 6 53800 0.1135 0.3033 -0.65287 2006 3 7 53801 0.1127 0.3026 -0.65310 2006 3 8 53802 0.1119 0.3020 -0.65316 2006 3 9 53803 0.1111 0.3013 -0.65319 2006 3 10 53804 0.1104 0.3007 -0.65329 2006 3 11 53805 0.1096 0.3000 -0.65361 2006 3 12 53806 0.1088 0.2994 -0.65410 2006 3 13 53807 0.1080 0.2988 -0.65477 2006 3 14 53808 0.1071 0.2982 -0.65566 2006 3 15 53809 0.1063 0.2976 -0.65669 2006 3 16 53810 0.1055 0.2970 -0.65780 2006 3 17 53811 0.1047 0.2964 -0.65895 2006 3 18 53812 0.1038 0.2959 -0.65998 2006 3 19 53813 0.1030 0.2953 -0.66088 2006 3 20 53814 0.1021 0.2948 -0.66159 2006 3 21 53815 0.1013 0.2942 -0.66216 2006 3 22 53816 0.1004 0.2937 -0.66265 2006 3 23 53817 0.0995 0.2932 -0.66308 2006 3 24 53818 0.0987 0.2927 -0.66355 2006 3 25 53819 0.0978 0.2921 -0.66414 2006 3 26 53820 0.0969 0.2917 -0.66496 2006 3 27 53821 0.0960 0.2912 -0.66610 2006 3 28 53822 0.0951 0.2907 -0.66748 2006 3 29 53823 0.0942 0.2902 -0.66906 2006 3 30 53824 0.0933 0.2897 -0.67057 2006 3 31 53825 0.0924 0.2893 -0.67187 2006 4 1 53826 0.0915 0.2888 -0.67283 2006 4 2 53827 0.0906 0.2884 -0.67346 2006 4 3 53828 0.0897 0.2880 -0.67374 2006 4 4 53829 0.0888 0.2876 -0.67382 2006 4 5 53830 0.0879 0.2872 -0.67378 2006 4 6 53831 0.0870 0.2867 -0.67373 2006 4 7 53832 0.0861 0.2864 -0.67382 2006 4 8 53833 0.0851 0.2860 -0.67412 2006 4 9 53834 0.0842 0.2856 -0.67467 2006 4 10 53835 0.0833 0.2852 -0.67540 2006 4 11 53836 0.0824 0.2849 -0.67631 2006 4 12 53837 0.0815 0.2845 -0.67739 2006 4 13 53838 0.0805 0.2842 -0.67847 2006 4 14 53839 0.0796 0.2838 -0.67957 2006 4 15 53840 0.0787 0.2835 -0.68058 2006 4 16 53841 0.0778 0.2832 -0.68141 2006 4 17 53842 0.0768 0.2829 -0.68210 2006 4 18 53843 0.0759 0.2826 -0.68260 2006 4 19 53844 0.0750 0.2823 -0.68300 2006 4 20 53845 0.0741 0.2820 -0.68336 2006 4 21 53846 0.0731 0.2817 -0.68382 2006 4 22 53847 0.0722 0.2814 -0.68446 2006 4 23 53848 0.0713 0.2812 -0.68534 2006 4 24 53849 0.0704 0.2809 -0.68649 2006 4 25 53850 0.0695 0.2807 -0.68783 2006 4 26 53851 0.0686 0.2804 -0.68924 2006 4 27 53852 0.0677 0.2802 -0.69053 2006 4 28 53853 0.0667 0.2800 -0.69155 These predictions are based on all announced leap seconds. CELESTIAL POLE OFFSET SERIES: NEOS Celestial Pole Offset Series MJD dpsi error deps error (msec. of arc) 53469 -53.05 .12 -4.42 .34 53470 -53.27 .16 -4.47 .34 53471 -53.54 .16 -4.63 .34 53472 -53.77 .22 -4.85 .12 53473 -53.87 .30 -5.04 .12 53474 -53.77 .30 -5.11 .12 53475 -53.48 .30 -5.09 .12 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53469 -0.173 0.048 -0.218 0.340 53470 -0.198 0.064 -0.206 0.340 53471 -0.212 0.064 -0.221 0.340 53472 -0.209 0.088 -0.251 0.120 53473 -0.196 0.119 -0.291 0.120 53474 -0.170 0.119 -0.311 0.120 53475 -0.147 0.119 -0.294 0.120 The IERS Conventions recommended software to predict celestial pole offsets is available at ftp://maia.usno.navy.mil/conventions/chapter5/ ceppred.f and software for the calculation of the dX and dY with respect to IAU2000A Nutation/Precession Theory can be found at the http://maia.usno.navy.mil/conv2000.html web site in section chapter 5. ************************************************************************** Important Notices - Important Notices - Important Notices ************************************************************************** On 04 November 2004 a new VLBI Intensive series produced by USNO's VLBI Analysis Group was introduced into the Bulletin A EOP series. ************************************************************************** Important Notice - IAU 2000 Resolution Compliancy Information ************************************************************************** Resolutions passed at the 24th General Assembly of the International Astronomical Union (IAU) recommend the implementation of a number of new procedures concerning the transformation between the celestial and terrestrial reference systems. Information regarding these procedures is available in Chapter 5 of the IERS Conventions 2003 available at http://maia.usno.navy.mil/conv2003.html. With these resolutions, beginning on 1 January 2003, IERS Bulletins A and B will publish new products in addition to those already published. These products will include the celestial pole offsets X_obs-X_IAU2000A and Y_obs-Y_IAU2000A where X_obs and Y_obs are the observed X, Y coordinates of the Celestial Intermediate Pole in the Geocentric Celestial Reference System, and X_IAU2000A and Y_IAU2000A are the celestial pole coordinates provided by using the IAU2000A Precession-Nutation theory. It is expected that Celestial Pole offsets related to the IAU1980 Nutation Theory will continue to be published through 31 December 2004. The new celestial pole offsets related to the new IAU2000A Precession-Nutation theory will be produced in a separate data file as well as appended to to this file. ************************************************************************** Important Notice - IAU 2000 Resolution Compliancy Information **************************************************************************