********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 14 April 2005 Vol. XVIII No. 015 ______________________________________________________________________ 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 8 53468 -.03668 .00009 .24998 .00008 -.578510 .000007 5 4 9 53469 -.03844 .00007 .25210 .00006 -.579755 .000009 5 4 10 53470 -.04060 .00007 .25377 .00004 -.580797 .000010 5 4 11 53471 -.04251 .00006 .25517 .00003 -.581543 .000012 5 4 12 53472 -.04417 .00004 .25668 .00002 -.582010 .000012 5 4 13 53473 -.04539 .00003 .25842 .00002 -.582290 .000015 5 4 14 53474 -.04624 .00002 .26027 .00001 -.582487 .000014 _______________________________________________________________________ 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 = .0531 - .0524 cos A + .0396 sin A - .0441 cos C - .1305 sin C y = .3490 + .0374 cos A + .0499 sin A - .1305 cos C + .0441 sin C UT1-UTC = -.5606 - .00035 (MJD - 53479) - (UT2-UT1) where A = 2*pi*(MJD-53474)/365.25 and C = 2*pi*(MJD-53474)/435. TAI-UTC(MJD 53475) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53474)**0.80 S t = 0.00025 (MJD-53474)**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 15 53475 -0.0472 0.2621 -0.58270 2005 4 16 53476 -0.0481 0.2638 -0.58304 2005 4 17 53477 -0.0491 0.2655 -0.58356 2005 4 18 53478 -0.0501 0.2671 -0.58427 2005 4 19 53479 -0.0512 0.2688 -0.58521 2005 4 20 53480 -0.0522 0.2704 -0.58631 2005 4 21 53481 -0.0533 0.2719 -0.58752 2005 4 22 53482 -0.0543 0.2735 -0.58874 2005 4 23 53483 -0.0553 0.2751 -0.58989 2005 4 24 53484 -0.0563 0.2766 -0.59093 2005 4 25 53485 -0.0573 0.2782 -0.59178 2005 4 26 53486 -0.0583 0.2797 -0.59237 2005 4 27 53487 -0.0593 0.2813 -0.59269 2005 4 28 53488 -0.0602 0.2829 -0.59280 2005 4 29 53489 -0.0611 0.2844 -0.59279 2005 4 30 53490 -0.0620 0.2860 -0.59281 2005 5 1 53491 -0.0628 0.2876 -0.59301 2005 5 2 53492 -0.0636 0.2892 -0.59345 2005 5 3 53493 -0.0644 0.2908 -0.59413 2005 5 4 53494 -0.0652 0.2924 -0.59500 2005 5 5 53495 -0.0659 0.2941 -0.59596 2005 5 6 53496 -0.0666 0.2957 -0.59687 2005 5 7 53497 -0.0672 0.2973 -0.59762 2005 5 8 53498 -0.0679 0.2990 -0.59815 2005 5 9 53499 -0.0685 0.3006 -0.59843 2005 5 10 53500 -0.0690 0.3023 -0.59848 2005 5 11 53501 -0.0696 0.3040 -0.59839 2005 5 12 53502 -0.0701 0.3057 -0.59823 2005 5 13 53503 -0.0706 0.3073 -0.59810 2005 5 14 53504 -0.0710 0.3090 -0.59807 2005 5 15 53505 -0.0714 0.3107 -0.59819 2005 5 16 53506 -0.0718 0.3124 -0.59850 2005 5 17 53507 -0.0721 0.3141 -0.59901 2005 5 18 53508 -0.0724 0.3158 -0.59971 2005 5 19 53509 -0.0727 0.3175 -0.60057 2005 5 20 53510 -0.0730 0.3192 -0.60151 2005 5 21 53511 -0.0732 0.3210 -0.60245 2005 5 22 53512 -0.0734 0.3227 -0.60327 2005 5 23 53513 -0.0735 0.3244 -0.60390 2005 5 24 53514 -0.0737 0.3261 -0.60427 2005 5 25 53515 -0.0738 0.3278 -0.60441 2005 5 26 53516 -0.0738 0.3296 -0.60439 2005 5 27 53517 -0.0739 0.3313 -0.60435 2005 5 28 53518 -0.0739 0.3330 -0.60443 2005 5 29 53519 -0.0739 0.3347 -0.60470 2005 5 30 53520 -0.0738 0.3365 -0.60521 2005 5 31 53521 -0.0737 0.3382 -0.60590 2005 6 1 53522 -0.0736 0.3399 -0.60667 2005 6 2 53523 -0.0735 0.3416 -0.60742 2005 6 3 53524 -0.0733 0.3433 -0.60803 2005 6 4 53525 -0.0732 0.3450 -0.60843 2005 6 5 53526 -0.0730 0.3467 -0.60857 2005 6 6 53527 -0.0727 0.3484 -0.60846 2005 6 7 53528 -0.0724 0.3501 -0.60814 2005 6 8 53529 -0.0721 0.3518 -0.60769 2005 6 9 53530 -0.0718 0.3535 -0.60718 2005 6 10 53531 -0.0714 0.3552 -0.60668 2005 6 11 53532 -0.0711 0.3569 -0.60628 2005 6 12 53533 -0.0706 0.3586 -0.60601 2005 6 13 53534 -0.0702 0.3603 -0.60591 2005 6 14 53535 -0.0697 0.3619 -0.60596 2005 6 15 53536 -0.0693 0.3636 -0.60615 2005 6 16 53537 -0.0687 0.3653 -0.60642 2005 6 17 53538 -0.0682 0.3669 -0.60671 2005 6 18 53539 -0.0676 0.3685 -0.60694 2005 6 19 53540 -0.0670 0.3702 -0.60701 2005 6 20 53541 -0.0664 0.3718 -0.60685 2005 6 21 53542 -0.0658 0.3734 -0.60646 2005 6 22 53543 -0.0651 0.3750 -0.60589 2005 6 23 53544 -0.0644 0.3766 -0.60526 2005 6 24 53545 -0.0637 0.3782 -0.60474 2005 6 25 53546 -0.0630 0.3798 -0.60443 2005 6 26 53547 -0.0622 0.3814 -0.60439 2005 6 27 53548 -0.0615 0.3830 -0.60457 2005 6 28 53549 -0.0607 0.3845 -0.60487 2005 6 29 53550 -0.0599 0.3861 -0.60515 2005 6 30 53551 -0.0590 0.3876 -0.60529 2005 7 1 53552 -0.0581 0.3891 -0.60521 2005 7 2 53553 -0.0573 0.3906 -0.60488 2005 7 3 53554 -0.0564 0.3921 -0.60430 2005 7 4 53555 -0.0554 0.3936 -0.60351 2005 7 5 53556 -0.0545 0.3951 -0.60258 2005 7 6 53557 -0.0535 0.3966 -0.60158 2005 7 7 53558 -0.0525 0.3980 -0.60060 2005 7 8 53559 -0.0515 0.3995 -0.59971 2005 7 9 53560 -0.0505 0.4009 -0.59897 2005 7 10 53561 -0.0495 0.4023 -0.59839 2005 7 11 53562 -0.0484 0.4037 -0.59798 2005 7 12 53563 -0.0474 0.4051 -0.59771 2005 7 13 53564 -0.0463 0.4065 -0.59754 2005 7 14 53565 -0.0452 0.4079 -0.59741 2005 7 15 53566 -0.0440 0.4092 -0.59725 2005 7 16 53567 -0.0429 0.4105 -0.59696 2005 7 17 53568 -0.0417 0.4119 -0.59650 2005 7 18 53569 -0.0406 0.4132 -0.59581 2005 7 19 53570 -0.0394 0.4144 -0.59493 2005 7 20 53571 -0.0382 0.4157 -0.59397 2005 7 21 53572 -0.0370 0.4170 -0.59306 2005 7 22 53573 -0.0357 0.4182 -0.59236 2005 7 23 53574 -0.0345 0.4194 -0.59196 2005 7 24 53575 -0.0333 0.4206 -0.59186 2005 7 25 53576 -0.0320 0.4218 -0.59196 2005 7 26 53577 -0.0307 0.4230 -0.59210 2005 7 27 53578 -0.0294 0.4241 -0.59215 2005 7 28 53579 -0.0281 0.4253 -0.59198 2005 7 29 53580 -0.0268 0.4264 -0.59157 2005 7 30 53581 -0.0255 0.4275 -0.59090 2005 7 31 53582 -0.0241 0.4286 -0.59002 2005 8 1 53583 -0.0228 0.4297 -0.58900 2005 8 2 53584 -0.0214 0.4307 -0.58791 2005 8 3 53585 -0.0201 0.4317 -0.58684 2005 8 4 53586 -0.0187 0.4327 -0.58586 2005 8 5 53587 -0.0173 0.4337 -0.58502 2005 8 6 53588 -0.0159 0.4347 -0.58437 2005 8 7 53589 -0.0145 0.4357 -0.58391 2005 8 8 53590 -0.0131 0.4366 -0.58363 2005 8 9 53591 -0.0117 0.4375 -0.58346 2005 8 10 53592 -0.0103 0.4384 -0.58336 2005 8 11 53593 -0.0089 0.4393 -0.58325 2005 8 12 53594 -0.0074 0.4401 -0.58306 2005 8 13 53595 -0.0060 0.4409 -0.58273 2005 8 14 53596 -0.0045 0.4418 -0.58222 2005 8 15 53597 -0.0031 0.4425 -0.58153 2005 8 16 53598 -0.0016 0.4433 -0.58074 2005 8 17 53599 -0.0002 0.4441 -0.57997 2005 8 18 53600 0.0013 0.4448 -0.57937 2005 8 19 53601 0.0027 0.4455 -0.57907 2005 8 20 53602 0.0042 0.4462 -0.57912 2005 8 21 53603 0.0057 0.4468 -0.57945 2005 8 22 53604 0.0072 0.4475 -0.57993 2005 8 23 53605 0.0086 0.4481 -0.58040 2005 8 24 53606 0.0101 0.4487 -0.58069 2005 8 25 53607 0.0116 0.4493 -0.58071 2005 8 26 53608 0.0131 0.4498 -0.58046 2005 8 27 53609 0.0146 0.4503 -0.57997 2005 8 28 53610 0.0160 0.4509 -0.57932 2005 8 29 53611 0.0175 0.4513 -0.57859 2005 8 30 53612 0.0190 0.4518 -0.57788 2005 8 31 53613 0.0205 0.4522 -0.57725 2005 9 1 53614 0.0220 0.4527 -0.57676 2005 9 2 53615 0.0235 0.4530 -0.57647 2005 9 3 53616 0.0250 0.4534 -0.57638 2005 9 4 53617 0.0264 0.4538 -0.57649 2005 9 5 53618 0.0279 0.4541 -0.57674 2005 9 6 53619 0.0294 0.4544 -0.57708 2005 9 7 53620 0.0309 0.4547 -0.57742 2005 9 8 53621 0.0323 0.4549 -0.57769 2005 9 9 53622 0.0338 0.4552 -0.57783 2005 9 10 53623 0.0353 0.4554 -0.57779 2005 9 11 53624 0.0367 0.4556 -0.57758 2005 9 12 53625 0.0382 0.4557 -0.57725 2005 9 13 53626 0.0397 0.4559 -0.57689 2005 9 14 53627 0.0411 0.4560 -0.57665 2005 9 15 53628 0.0426 0.4561 -0.57666 2005 9 16 53629 0.0440 0.4561 -0.57700 2005 9 17 53630 0.0455 0.4562 -0.57768 2005 9 18 53631 0.0469 0.4562 -0.57859 2005 9 19 53632 0.0483 0.4562 -0.57959 2005 9 20 53633 0.0497 0.4562 -0.58048 2005 9 21 53634 0.0512 0.4562 -0.58114 2005 9 22 53635 0.0526 0.4561 -0.58150 2005 9 23 53636 0.0540 0.4560 -0.58159 2005 9 24 53637 0.0554 0.4559 -0.58146 2005 9 25 53638 0.0568 0.4558 -0.58122 2005 9 26 53639 0.0581 0.4556 -0.58095 2005 9 27 53640 0.0595 0.4554 -0.58075 2005 9 28 53641 0.0609 0.4552 -0.58067 2005 9 29 53642 0.0623 0.4550 -0.58077 2005 9 30 53643 0.0636 0.4547 -0.58107 2005 10 1 53644 0.0650 0.4545 -0.58156 2005 10 2 53645 0.0663 0.4542 -0.58221 2005 10 3 53646 0.0676 0.4539 -0.58297 2005 10 4 53647 0.0690 0.4536 -0.58375 2005 10 5 53648 0.0703 0.4532 -0.58447 2005 10 6 53649 0.0716 0.4528 -0.58506 2005 10 7 53650 0.0729 0.4524 -0.58546 2005 10 8 53651 0.0742 0.4520 -0.58567 2005 10 9 53652 0.0754 0.4516 -0.58573 2005 10 10 53653 0.0767 0.4511 -0.58573 2005 10 11 53654 0.0780 0.4506 -0.58580 2005 10 12 53655 0.0792 0.4501 -0.58606 2005 10 13 53656 0.0804 0.4496 -0.58660 2005 10 14 53657 0.0817 0.4491 -0.58746 2005 10 15 53658 0.0829 0.4485 -0.58859 2005 10 16 53659 0.0841 0.4480 -0.58985 2005 10 17 53660 0.0853 0.4474 -0.59109 2005 10 18 53661 0.0865 0.4467 -0.59214 2005 10 19 53662 0.0876 0.4461 -0.59292 2005 10 20 53663 0.0888 0.4455 -0.59338 2005 10 21 53664 0.0900 0.4448 -0.59358 2005 10 22 53665 0.0911 0.4441 -0.59358 2005 10 23 53666 0.0922 0.4434 -0.59350 2005 10 24 53667 0.0934 0.4427 -0.59341 2005 10 25 53668 0.0945 0.4420 -0.59340 2005 10 26 53669 0.0956 0.4412 -0.59352 2005 10 27 53670 0.0967 0.4405 -0.59380 2005 10 28 53671 0.0977 0.4397 -0.59427 2005 10 29 53672 0.0988 0.4389 -0.59491 2005 10 30 53673 0.0999 0.4381 -0.59568 2005 10 31 53674 0.1009 0.4373 -0.59652 2005 11 1 53675 0.1019 0.4364 -0.59734 2005 11 2 53676 0.1029 0.4356 -0.59806 2005 11 3 53677 0.1039 0.4347 -0.59859 2005 11 4 53678 0.1049 0.4338 -0.59891 2005 11 5 53679 0.1059 0.4329 -0.59901 2005 11 6 53680 0.1069 0.4320 -0.59899 2005 11 7 53681 0.1078 0.4311 -0.59895 2005 11 8 53682 0.1087 0.4301 -0.59901 2005 11 9 53683 0.1097 0.4292 -0.59928 2005 11 10 53684 0.1106 0.4282 -0.59981 2005 11 11 53685 0.1115 0.4272 -0.60058 2005 11 12 53686 0.1123 0.4262 -0.60150 2005 11 13 53687 0.1132 0.4252 -0.60244 2005 11 14 53688 0.1141 0.4242 -0.60327 2005 11 15 53689 0.1149 0.4232 -0.60388 2005 11 16 53690 0.1157 0.4222 -0.60421 2005 11 17 53691 0.1165 0.4211 -0.60429 2005 11 18 53692 0.1173 0.4201 -0.60418 2005 11 19 53693 0.1181 0.4190 -0.60401 2005 11 20 53694 0.1189 0.4179 -0.60383 2005 11 21 53695 0.1196 0.4168 -0.60374 2005 11 22 53696 0.1204 0.4157 -0.60378 2005 11 23 53697 0.1211 0.4146 -0.60396 2005 11 24 53698 0.1218 0.4135 -0.60425 2005 11 25 53699 0.1225 0.4124 -0.60465 2005 11 26 53700 0.1232 0.4113 -0.60509 2005 11 27 53701 0.1238 0.4102 -0.60554 2005 11 28 53702 0.1245 0.4090 -0.60597 2005 11 29 53703 0.1251 0.4079 -0.60633 2005 11 30 53704 0.1257 0.4067 -0.60659 2005 12 1 53705 0.1263 0.4056 -0.60673 2005 12 2 53706 0.1269 0.4044 -0.60677 2005 12 3 53707 0.1275 0.4032 -0.60673 2005 12 4 53708 0.1280 0.4021 -0.60665 2005 12 5 53709 0.1286 0.4009 -0.60673 2005 12 6 53710 0.1291 0.3997 -0.60704 2005 12 7 53711 0.1296 0.3985 -0.60762 2005 12 8 53712 0.1301 0.3973 -0.60844 2005 12 9 53713 0.1306 0.3961 -0.60941 2005 12 10 53714 0.1311 0.3949 -0.61041 2005 12 11 53715 0.1315 0.3937 -0.61141 2005 12 12 53716 0.1319 0.3925 -0.61225 2005 12 13 53717 0.1324 0.3913 -0.61292 2005 12 14 53718 0.1328 0.3901 -0.61328 2005 12 15 53719 0.1332 0.3889 -0.61344 2005 12 16 53720 0.1335 0.3877 -0.61350 2005 12 17 53721 0.1339 0.3865 -0.61352 2005 12 18 53722 0.1342 0.3853 -0.61356 2005 12 19 53723 0.1345 0.3841 -0.61368 2005 12 20 53724 0.1349 0.3828 -0.61394 2005 12 21 53725 0.1351 0.3816 -0.61434 2005 12 22 53726 0.1354 0.3804 -0.61489 2005 12 23 53727 0.1357 0.3792 -0.61557 2005 12 24 53728 0.1359 0.3780 -0.61636 2005 12 25 53729 0.1362 0.3768 -0.61716 2005 12 26 53730 0.1364 0.3756 -0.61794 2005 12 27 53731 0.1366 0.3744 -0.61855 2005 12 28 53732 0.1368 0.3732 -0.61901 2005 12 29 53733 0.1369 0.3720 -0.61925 2005 12 30 53734 0.1371 0.3708 -0.61930 2005 12 31 53735 0.1372 0.3696 -0.61925 2006 1 1 53736 0.1373 0.3684 -0.61920 2006 1 2 53737 0.1374 0.3672 -0.61938 2006 1 3 53738 0.1375 0.3660 -0.61988 2006 1 4 53739 0.1376 0.3648 -0.62067 2006 1 5 53740 0.1377 0.3636 -0.62164 2006 1 6 53741 0.1377 0.3625 -0.62261 2006 1 7 53742 0.1377 0.3613 -0.62350 2006 1 8 53743 0.1377 0.3601 -0.62416 2006 1 9 53744 0.1377 0.3589 -0.62453 2006 1 10 53745 0.1377 0.3578 -0.62465 2006 1 11 53746 0.1377 0.3566 -0.62455 2006 1 12 53747 0.1376 0.3555 -0.62431 2006 1 13 53748 0.1376 0.3543 -0.62402 2006 1 14 53749 0.1375 0.3532 -0.62376 2006 1 15 53750 0.1374 0.3521 -0.62360 2006 1 16 53751 0.1373 0.3509 -0.62360 2006 1 17 53752 0.1372 0.3498 -0.62373 2006 1 18 53753 0.1370 0.3487 -0.62404 2006 1 19 53754 0.1369 0.3476 -0.62451 2006 1 20 53755 0.1367 0.3465 -0.62505 2006 1 21 53756 0.1365 0.3454 -0.62559 2006 1 22 53757 0.1363 0.3443 -0.62607 2006 1 23 53758 0.1361 0.3432 -0.62641 2006 1 24 53759 0.1359 0.3421 -0.62656 2006 1 25 53760 0.1357 0.3410 -0.62656 2006 1 26 53761 0.1354 0.3400 -0.62638 2006 1 27 53762 0.1351 0.3389 -0.62607 2006 1 28 53763 0.1349 0.3379 -0.62578 2006 1 29 53764 0.1346 0.3368 -0.62566 2006 1 30 53765 0.1342 0.3358 -0.62585 2006 1 31 53766 0.1339 0.3347 -0.62640 2006 2 1 53767 0.1336 0.3337 -0.62724 2006 2 2 53768 0.1332 0.3327 -0.62820 2006 2 3 53769 0.1329 0.3317 -0.62912 2006 2 4 53770 0.1325 0.3307 -0.62992 2006 2 5 53771 0.1321 0.3297 -0.63054 2006 2 6 53772 0.1317 0.3287 -0.63086 2006 2 7 53773 0.1313 0.3277 -0.63094 2006 2 8 53774 0.1308 0.3268 -0.63080 2006 2 9 53775 0.1304 0.3258 -0.63056 2006 2 10 53776 0.1299 0.3248 -0.63034 2006 2 11 53777 0.1295 0.3239 -0.63030 2006 2 12 53778 0.1290 0.3230 -0.63040 2006 2 13 53779 0.1285 0.3220 -0.63069 2006 2 14 53780 0.1280 0.3211 -0.63121 2006 2 15 53781 0.1275 0.3202 -0.63191 2006 2 16 53782 0.1270 0.3193 -0.63274 2006 2 17 53783 0.1264 0.3184 -0.63366 2006 2 18 53784 0.1259 0.3175 -0.63453 2006 2 19 53785 0.1253 0.3166 -0.63531 2006 2 20 53786 0.1247 0.3158 -0.63596 2006 2 21 53787 0.1242 0.3149 -0.63646 2006 2 22 53788 0.1236 0.3140 -0.63685 2006 2 23 53789 0.1230 0.3132 -0.63713 2006 2 24 53790 0.1223 0.3123 -0.63738 2006 2 25 53791 0.1217 0.3115 -0.63768 2006 2 26 53792 0.1211 0.3107 -0.63816 2006 2 27 53793 0.1204 0.3099 -0.63896 2006 2 28 53794 0.1198 0.3091 -0.64007 2006 3 1 53795 0.1191 0.3083 -0.64144 2006 3 2 53796 0.1184 0.3075 -0.64285 2006 3 3 53797 0.1178 0.3067 -0.64412 2006 3 4 53798 0.1171 0.3059 -0.64510 2006 3 5 53799 0.1164 0.3052 -0.64576 2006 3 6 53800 0.1156 0.3044 -0.64605 2006 3 7 53801 0.1149 0.3037 -0.64609 2006 3 8 53802 0.1142 0.3029 -0.64597 2006 3 9 53803 0.1135 0.3022 -0.64579 2006 3 10 53804 0.1127 0.3015 -0.64571 2006 3 11 53805 0.1120 0.3008 -0.64582 2006 3 12 53806 0.1112 0.3001 -0.64619 2006 3 13 53807 0.1104 0.2994 -0.64676 2006 3 14 53808 0.1097 0.2987 -0.64756 2006 3 15 53809 0.1089 0.2980 -0.64857 2006 3 16 53810 0.1081 0.2974 -0.64965 2006 3 17 53811 0.1073 0.2967 -0.65081 2006 3 18 53812 0.1065 0.2960 -0.65194 2006 3 19 53813 0.1057 0.2954 -0.65295 2006 3 20 53814 0.1049 0.2948 -0.65382 2006 3 21 53815 0.1041 0.2941 -0.65450 2006 3 22 53816 0.1032 0.2935 -0.65503 2006 3 23 53817 0.1024 0.2929 -0.65546 2006 3 24 53818 0.1016 0.2923 -0.65591 2006 3 25 53819 0.1007 0.2917 -0.65651 2006 3 26 53820 0.0999 0.2911 -0.65735 2006 3 27 53821 0.0990 0.2905 -0.65851 2006 3 28 53822 0.0982 0.2900 -0.65997 2006 3 29 53823 0.0973 0.2894 -0.66160 2006 3 30 53824 0.0965 0.2889 -0.66321 2006 3 31 53825 0.0956 0.2883 -0.66462 2006 4 1 53826 0.0947 0.2878 -0.66573 2006 4 2 53827 0.0939 0.2873 -0.66649 2006 4 3 53828 0.0930 0.2867 -0.66690 2006 4 4 53829 0.0921 0.2862 -0.66705 2006 4 5 53830 0.0912 0.2857 -0.66704 2006 4 6 53831 0.0903 0.2852 -0.66700 2006 4 7 53832 0.0894 0.2848 -0.66704 2006 4 8 53833 0.0885 0.2843 -0.66718 2006 4 9 53834 0.0876 0.2838 -0.66743 2006 4 10 53835 0.0868 0.2834 -0.66783 2006 4 11 53836 0.0859 0.2829 -0.66832 2006 4 12 53837 0.0850 0.2825 -0.66884 2006 4 13 53838 0.0841 0.2821 -0.66934 2006 4 14 53839 0.0831 0.2816 -0.66978 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) 53459 -54.35 .27 -4.37 .34 53460 -54.27 .27 -4.50 .34 53461 -53.98 .27 -4.66 .34 53462 -53.52 .36 -4.82 .34 53463 -53.04 .32 -4.95 .34 53464 -52.66 .32 -5.01 .34 53465 -52.49 .10 -4.96 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53459 -0.135 0.107 -0.352 0.340 53460 -0.108 0.107 -0.344 0.340 53461 -0.081 0.107 -0.328 0.340 53462 -0.071 0.143 -0.301 0.340 53463 -0.089 0.127 -0.288 0.340 53464 -0.103 0.127 -0.301 0.340 53465 -0.106 0.040 -0.324 0.340 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 **************************************************************************