********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 21 April 2005 Vol. XVIII No. 016 ______________________________________________________________________ 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 15 53475 -.04677 .00004 .26221 .00004 -.582836 .000009 5 4 16 53476 -.04789 .00005 .26453 .00004 -.583158 .000010 5 4 17 53477 -.04939 .00004 .26694 .00003 -.583614 .000009 5 4 18 53478 -.05099 .00004 .26927 .00002 -.584258 .000009 5 4 19 53479 -.05249 .00004 .27159 .00002 -.585109 .000009 5 4 20 53480 -.05385 .00004 .27391 .00002 -.586140 .000009 5 4 21 53481 -.05504 .00004 .27611 .00002 -.587422 .000010 _______________________________________________________________________ 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 = .0529 - .0445 cos A + .0449 sin A - .0563 cos C - .1240 sin C y = .3493 + .0426 cos A + .0464 sin A - .1240 cos C + .0563 sin C UT1-UTC = -.5666 - .00036 (MJD - 53486) - (UT2-UT1) where A = 2*pi*(MJD-53481)/365.25 and C = 2*pi*(MJD-53481)/435. TAI-UTC(MJD 53482) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53481)**0.80 S t = 0.00025 (MJD-53481)**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 22 53482 -0.0561 0.2782 -0.58897 2005 4 23 53483 -0.0572 0.2801 -0.59060 2005 4 24 53484 -0.0582 0.2820 -0.59218 2005 4 25 53485 -0.0591 0.2839 -0.59360 2005 4 26 53486 -0.0601 0.2857 -0.59479 2005 4 27 53487 -0.0610 0.2874 -0.59573 2005 4 28 53488 -0.0618 0.2892 -0.59646 2005 4 29 53489 -0.0627 0.2909 -0.59706 2005 4 30 53490 -0.0635 0.2925 -0.59762 2005 5 1 53491 -0.0643 0.2942 -0.59827 2005 5 2 53492 -0.0651 0.2958 -0.59910 2005 5 3 53493 -0.0658 0.2975 -0.60010 2005 5 4 53494 -0.0665 0.2991 -0.60122 2005 5 5 53495 -0.0672 0.3007 -0.60237 2005 5 6 53496 -0.0678 0.3023 -0.60344 2005 5 7 53497 -0.0684 0.3040 -0.60431 2005 5 8 53498 -0.0690 0.3056 -0.60492 2005 5 9 53499 -0.0696 0.3072 -0.60522 2005 5 10 53500 -0.0701 0.3088 -0.60526 2005 5 11 53501 -0.0706 0.3104 -0.60510 2005 5 12 53502 -0.0711 0.3120 -0.60484 2005 5 13 53503 -0.0715 0.3137 -0.60454 2005 5 14 53504 -0.0719 0.3153 -0.60428 2005 5 15 53505 -0.0723 0.3169 -0.60413 2005 5 16 53506 -0.0726 0.3186 -0.60412 2005 5 17 53507 -0.0729 0.3202 -0.60429 2005 5 18 53508 -0.0732 0.3218 -0.60463 2005 5 19 53509 -0.0735 0.3235 -0.60512 2005 5 20 53510 -0.0737 0.3251 -0.60571 2005 5 21 53511 -0.0739 0.3268 -0.60631 2005 5 22 53512 -0.0741 0.3284 -0.60684 2005 5 23 53513 -0.0742 0.3301 -0.60722 2005 5 24 53514 -0.0743 0.3318 -0.60739 2005 5 25 53515 -0.0744 0.3334 -0.60736 2005 5 26 53516 -0.0744 0.3351 -0.60723 2005 5 27 53517 -0.0744 0.3368 -0.60711 2005 5 28 53518 -0.0744 0.3384 -0.60715 2005 5 29 53519 -0.0744 0.3401 -0.60742 2005 5 30 53520 -0.0743 0.3418 -0.60794 2005 5 31 53521 -0.0742 0.3434 -0.60866 2005 6 1 53522 -0.0741 0.3451 -0.60948 2005 6 2 53523 -0.0739 0.3468 -0.61027 2005 6 3 53524 -0.0737 0.3484 -0.61093 2005 6 4 53525 -0.0735 0.3501 -0.61136 2005 6 5 53526 -0.0733 0.3518 -0.61153 2005 6 6 53527 -0.0730 0.3534 -0.61144 2005 6 7 53528 -0.0727 0.3551 -0.61113 2005 6 8 53529 -0.0724 0.3567 -0.61067 2005 6 9 53530 -0.0720 0.3584 -0.61014 2005 6 10 53531 -0.0717 0.3600 -0.60963 2005 6 11 53532 -0.0713 0.3617 -0.60921 2005 6 12 53533 -0.0708 0.3633 -0.60894 2005 6 13 53534 -0.0704 0.3649 -0.60883 2005 6 14 53535 -0.0699 0.3666 -0.60890 2005 6 15 53536 -0.0694 0.3682 -0.60911 2005 6 16 53537 -0.0688 0.3698 -0.60941 2005 6 17 53538 -0.0683 0.3714 -0.60974 2005 6 18 53539 -0.0677 0.3730 -0.61001 2005 6 19 53540 -0.0671 0.3746 -0.61011 2005 6 20 53541 -0.0664 0.3762 -0.60999 2005 6 21 53542 -0.0658 0.3778 -0.60963 2005 6 22 53543 -0.0651 0.3794 -0.60908 2005 6 23 53544 -0.0644 0.3809 -0.60848 2005 6 24 53545 -0.0636 0.3825 -0.60798 2005 6 25 53546 -0.0629 0.3840 -0.60769 2005 6 26 53547 -0.0621 0.3856 -0.60766 2005 6 27 53548 -0.0613 0.3870 -0.60786 2005 6 28 53549 -0.0605 0.3886 -0.60818 2005 6 29 53550 -0.0596 0.3901 -0.60849 2005 6 30 53551 -0.0588 0.3916 -0.60866 2005 7 1 53552 -0.0579 0.3931 -0.60861 2005 7 2 53553 -0.0570 0.3945 -0.60831 2005 7 3 53554 -0.0561 0.3960 -0.60776 2005 7 4 53555 -0.0551 0.3975 -0.60700 2005 7 5 53556 -0.0541 0.3989 -0.60611 2005 7 6 53557 -0.0531 0.4003 -0.60514 2005 7 7 53558 -0.0521 0.4018 -0.60419 2005 7 8 53559 -0.0511 0.4032 -0.60333 2005 7 9 53560 -0.0501 0.4046 -0.60260 2005 7 10 53561 -0.0490 0.4059 -0.60204 2005 7 11 53562 -0.0479 0.4073 -0.60166 2005 7 12 53563 -0.0468 0.4087 -0.60142 2005 7 13 53564 -0.0457 0.4100 -0.60128 2005 7 14 53565 -0.0446 0.4113 -0.60118 2005 7 15 53566 -0.0434 0.4126 -0.60106 2005 7 16 53567 -0.0423 0.4139 -0.60082 2005 7 17 53568 -0.0411 0.4152 -0.60041 2005 7 18 53569 -0.0399 0.4165 -0.59978 2005 7 19 53570 -0.0387 0.4177 -0.59897 2005 7 20 53571 -0.0374 0.4189 -0.59808 2005 7 21 53572 -0.0362 0.4202 -0.59724 2005 7 22 53573 -0.0350 0.4214 -0.59661 2005 7 23 53574 -0.0337 0.4225 -0.59628 2005 7 24 53575 -0.0324 0.4237 -0.59623 2005 7 25 53576 -0.0311 0.4249 -0.59638 2005 7 26 53577 -0.0298 0.4260 -0.59658 2005 7 27 53578 -0.0285 0.4271 -0.59666 2005 7 28 53579 -0.0272 0.4282 -0.59653 2005 7 29 53580 -0.0258 0.4293 -0.59612 2005 7 30 53581 -0.0245 0.4304 -0.59546 2005 7 31 53582 -0.0231 0.4314 -0.59458 2005 8 1 53583 -0.0218 0.4324 -0.59355 2005 8 2 53584 -0.0204 0.4334 -0.59246 2005 8 3 53585 -0.0190 0.4344 -0.59139 2005 8 4 53586 -0.0176 0.4354 -0.59040 2005 8 5 53587 -0.0162 0.4363 -0.58960 2005 8 6 53588 -0.0148 0.4373 -0.58897 2005 8 7 53589 -0.0134 0.4382 -0.58854 2005 8 8 53590 -0.0120 0.4391 -0.58827 2005 8 9 53591 -0.0105 0.4400 -0.58813 2005 8 10 53592 -0.0091 0.4408 -0.58805 2005 8 11 53593 -0.0076 0.4416 -0.58795 2005 8 12 53594 -0.0062 0.4424 -0.58777 2005 8 13 53595 -0.0047 0.4432 -0.58745 2005 8 14 53596 -0.0033 0.4440 -0.58694 2005 8 15 53597 -0.0018 0.4448 -0.58626 2005 8 16 53598 -0.0003 0.4455 -0.58547 2005 8 17 53599 0.0011 0.4462 -0.58470 2005 8 18 53600 0.0026 0.4469 -0.58411 2005 8 19 53601 0.0041 0.4475 -0.58381 2005 8 20 53602 0.0056 0.4482 -0.58385 2005 8 21 53603 0.0071 0.4488 -0.58418 2005 8 22 53604 0.0085 0.4494 -0.58467 2005 8 23 53605 0.0100 0.4500 -0.58513 2005 8 24 53606 0.0115 0.4506 -0.58543 2005 8 25 53607 0.0130 0.4511 -0.58545 2005 8 26 53608 0.0145 0.4516 -0.58520 2005 8 27 53609 0.0160 0.4521 -0.58471 2005 8 28 53610 0.0175 0.4526 -0.58406 2005 8 29 53611 0.0190 0.4530 -0.58334 2005 8 30 53612 0.0205 0.4534 -0.58262 2005 8 31 53613 0.0220 0.4538 -0.58199 2005 9 1 53614 0.0235 0.4542 -0.58150 2005 9 2 53615 0.0250 0.4546 -0.58120 2005 9 3 53616 0.0265 0.4549 -0.58111 2005 9 4 53617 0.0279 0.4552 -0.58120 2005 9 5 53618 0.0294 0.4555 -0.58144 2005 9 6 53619 0.0309 0.4557 -0.58176 2005 9 7 53620 0.0324 0.4560 -0.58209 2005 9 8 53621 0.0339 0.4562 -0.58235 2005 9 9 53622 0.0354 0.4564 -0.58247 2005 9 10 53623 0.0368 0.4566 -0.58242 2005 9 11 53624 0.0383 0.4567 -0.58220 2005 9 12 53625 0.0398 0.4568 -0.58186 2005 9 13 53626 0.0412 0.4569 -0.58150 2005 9 14 53627 0.0427 0.4570 -0.58126 2005 9 15 53628 0.0441 0.4571 -0.58128 2005 9 16 53629 0.0456 0.4571 -0.58163 2005 9 17 53630 0.0470 0.4571 -0.58232 2005 9 18 53631 0.0484 0.4571 -0.58324 2005 9 19 53632 0.0499 0.4571 -0.58425 2005 9 20 53633 0.0513 0.4570 -0.58516 2005 9 21 53634 0.0527 0.4569 -0.58584 2005 9 22 53635 0.0541 0.4568 -0.58623 2005 9 23 53636 0.0555 0.4567 -0.58634 2005 9 24 53637 0.0569 0.4565 -0.58625 2005 9 25 53638 0.0583 0.4564 -0.58603 2005 9 26 53639 0.0597 0.4562 -0.58579 2005 9 27 53640 0.0611 0.4560 -0.58561 2005 9 28 53641 0.0624 0.4557 -0.58556 2005 9 29 53642 0.0638 0.4555 -0.58568 2005 9 30 53643 0.0651 0.4552 -0.58600 2005 10 1 53644 0.0665 0.4549 -0.58652 2005 10 2 53645 0.0678 0.4545 -0.58719 2005 10 3 53646 0.0691 0.4542 -0.58797 2005 10 4 53647 0.0704 0.4538 -0.58877 2005 10 5 53648 0.0718 0.4534 -0.58951 2005 10 6 53649 0.0730 0.4530 -0.59011 2005 10 7 53650 0.0743 0.4526 -0.59053 2005 10 8 53651 0.0756 0.4521 -0.59075 2005 10 9 53652 0.0769 0.4516 -0.59082 2005 10 10 53653 0.0781 0.4512 -0.59083 2005 10 11 53654 0.0794 0.4506 -0.59091 2005 10 12 53655 0.0806 0.4501 -0.59118 2005 10 13 53656 0.0819 0.4495 -0.59174 2005 10 14 53657 0.0831 0.4490 -0.59262 2005 10 15 53658 0.0843 0.4484 -0.59377 2005 10 16 53659 0.0855 0.4478 -0.59507 2005 10 17 53660 0.0867 0.4471 -0.59635 2005 10 18 53661 0.0878 0.4465 -0.59747 2005 10 19 53662 0.0890 0.4458 -0.59832 2005 10 20 53663 0.0901 0.4451 -0.59888 2005 10 21 53664 0.0913 0.4444 -0.59920 2005 10 22 53665 0.0924 0.4437 -0.59934 2005 10 23 53666 0.0935 0.4429 -0.59942 2005 10 24 53667 0.0946 0.4422 -0.59952 2005 10 25 53668 0.0957 0.4414 -0.59972 2005 10 26 53669 0.0968 0.4406 -0.60005 2005 10 27 53670 0.0979 0.4398 -0.60056 2005 10 28 53671 0.0989 0.4390 -0.60124 2005 10 29 53672 0.1000 0.4381 -0.60205 2005 10 30 53673 0.1010 0.4373 -0.60295 2005 10 31 53674 0.1020 0.4365 -0.60386 2005 11 1 53675 0.1031 0.4356 -0.60470 2005 11 2 53676 0.1041 0.4347 -0.60539 2005 11 3 53677 0.1050 0.4338 -0.60584 2005 11 4 53678 0.1060 0.4329 -0.60606 2005 11 5 53679 0.1070 0.4320 -0.60606 2005 11 6 53680 0.1079 0.4311 -0.60596 2005 11 7 53681 0.1088 0.4301 -0.60588 2005 11 8 53682 0.1098 0.4292 -0.60595 2005 11 9 53683 0.1107 0.4282 -0.60630 2005 11 10 53684 0.1116 0.4272 -0.60695 2005 11 11 53685 0.1124 0.4262 -0.60789 2005 11 12 53686 0.1133 0.4252 -0.60900 2005 11 13 53687 0.1141 0.4242 -0.61015 2005 11 14 53688 0.1150 0.4232 -0.61120 2005 11 15 53689 0.1158 0.4221 -0.61203 2005 11 16 53690 0.1166 0.4211 -0.61257 2005 11 17 53691 0.1174 0.4200 -0.61281 2005 11 18 53692 0.1182 0.4189 -0.61281 2005 11 19 53693 0.1189 0.4179 -0.61264 2005 11 20 53694 0.1197 0.4168 -0.61241 2005 11 21 53695 0.1204 0.4157 -0.61221 2005 11 22 53696 0.1212 0.4146 -0.61212 2005 11 23 53697 0.1219 0.4134 -0.61218 2005 11 24 53698 0.1226 0.4123 -0.61239 2005 11 25 53699 0.1232 0.4112 -0.61275 2005 11 26 53700 0.1239 0.4100 -0.61323 2005 11 27 53701 0.1245 0.4089 -0.61378 2005 11 28 53702 0.1252 0.4077 -0.61432 2005 11 29 53703 0.1258 0.4066 -0.61479 2005 11 30 53704 0.1264 0.4054 -0.61509 2005 12 1 53705 0.1270 0.4042 -0.61519 2005 12 2 53706 0.1275 0.4031 -0.61511 2005 12 3 53707 0.1281 0.4019 -0.61496 2005 12 4 53708 0.1286 0.4007 -0.61478 2005 12 5 53709 0.1292 0.3995 -0.61474 2005 12 6 53710 0.1297 0.3983 -0.61493 2005 12 7 53711 0.1302 0.3971 -0.61536 2005 12 8 53712 0.1307 0.3959 -0.61597 2005 12 9 53713 0.1311 0.3947 -0.61669 2005 12 10 53714 0.1316 0.3935 -0.61737 2005 12 11 53715 0.1320 0.3923 -0.61789 2005 12 12 53716 0.1324 0.3911 -0.61819 2005 12 13 53717 0.1328 0.3898 -0.61826 2005 12 14 53718 0.1332 0.3886 -0.61813 2005 12 15 53719 0.1336 0.3874 -0.61787 2005 12 16 53720 0.1339 0.3862 -0.61758 2005 12 17 53721 0.1343 0.3850 -0.61729 2005 12 18 53722 0.1346 0.3837 -0.61705 2005 12 19 53723 0.1349 0.3825 -0.61695 2005 12 20 53724 0.1352 0.3813 -0.61702 2005 12 21 53725 0.1355 0.3801 -0.61727 2005 12 22 53726 0.1358 0.3789 -0.61766 2005 12 23 53727 0.1360 0.3776 -0.61817 2005 12 24 53728 0.1362 0.3764 -0.61876 2005 12 25 53729 0.1364 0.3752 -0.61945 2005 12 26 53730 0.1366 0.3740 -0.62014 2005 12 27 53731 0.1368 0.3728 -0.62079 2005 12 28 53732 0.1370 0.3716 -0.62121 2005 12 29 53733 0.1371 0.3704 -0.62145 2005 12 30 53734 0.1373 0.3692 -0.62156 2005 12 31 53735 0.1374 0.3680 -0.62163 2006 1 1 53736 0.1375 0.3668 -0.62175 2006 1 2 53737 0.1376 0.3656 -0.62205 2006 1 3 53738 0.1377 0.3644 -0.62263 2006 1 4 53739 0.1377 0.3632 -0.62347 2006 1 5 53740 0.1378 0.3620 -0.62449 2006 1 6 53741 0.1378 0.3608 -0.62558 2006 1 7 53742 0.1378 0.3597 -0.62660 2006 1 8 53743 0.1378 0.3585 -0.62742 2006 1 9 53744 0.1378 0.3573 -0.62802 2006 1 10 53745 0.1378 0.3562 -0.62831 2006 1 11 53746 0.1377 0.3550 -0.62840 2006 1 12 53747 0.1376 0.3539 -0.62834 2006 1 13 53748 0.1376 0.3527 -0.62820 2006 1 14 53749 0.1375 0.3516 -0.62803 2006 1 15 53750 0.1373 0.3505 -0.62791 2006 1 16 53751 0.1372 0.3493 -0.62795 2006 1 17 53752 0.1371 0.3482 -0.62819 2006 1 18 53753 0.1369 0.3471 -0.62861 2006 1 19 53754 0.1368 0.3460 -0.62915 2006 1 20 53755 0.1366 0.3449 -0.62973 2006 1 21 53756 0.1364 0.3438 -0.63035 2006 1 22 53757 0.1362 0.3427 -0.63091 2006 1 23 53758 0.1359 0.3416 -0.63135 2006 1 24 53759 0.1357 0.3406 -0.63164 2006 1 25 53760 0.1354 0.3395 -0.63175 2006 1 26 53761 0.1351 0.3385 -0.63171 2006 1 27 53762 0.1349 0.3374 -0.63158 2006 1 28 53763 0.1346 0.3364 -0.63149 2006 1 29 53764 0.1342 0.3353 -0.63159 2006 1 30 53765 0.1339 0.3343 -0.63198 2006 1 31 53766 0.1336 0.3333 -0.63269 2006 2 1 53767 0.1332 0.3323 -0.63366 2006 2 2 53768 0.1328 0.3313 -0.63479 2006 2 3 53769 0.1325 0.3303 -0.63587 2006 2 4 53770 0.1321 0.3293 -0.63672 2006 2 5 53771 0.1317 0.3283 -0.63726 2006 2 6 53772 0.1312 0.3274 -0.63747 2006 2 7 53773 0.1308 0.3264 -0.63741 2006 2 8 53774 0.1303 0.3255 -0.63720 2006 2 9 53775 0.1299 0.3245 -0.63692 2006 2 10 53776 0.1294 0.3236 -0.63661 2006 2 11 53777 0.1289 0.3227 -0.63639 2006 2 12 53778 0.1284 0.3218 -0.63630 2006 2 13 53779 0.1279 0.3209 -0.63639 2006 2 14 53780 0.1274 0.3200 -0.63670 2006 2 15 53781 0.1268 0.3191 -0.63717 2006 2 16 53782 0.1263 0.3182 -0.63774 2006 2 17 53783 0.1257 0.3173 -0.63836 2006 2 18 53784 0.1252 0.3165 -0.63901 2006 2 19 53785 0.1246 0.3156 -0.63969 2006 2 20 53786 0.1240 0.3148 -0.64021 2006 2 21 53787 0.1234 0.3139 -0.64058 2006 2 22 53788 0.1228 0.3131 -0.64072 2006 2 23 53789 0.1221 0.3123 -0.64072 2006 2 24 53790 0.1215 0.3115 -0.64071 2006 2 25 53791 0.1209 0.3107 -0.64090 2006 2 26 53792 0.1202 0.3099 -0.64136 2006 2 27 53793 0.1195 0.3091 -0.64217 2006 2 28 53794 0.1188 0.3083 -0.64338 2006 3 1 53795 0.1182 0.3076 -0.64485 2006 3 2 53796 0.1175 0.3068 -0.64639 2006 3 3 53797 0.1168 0.3061 -0.64785 2006 3 4 53798 0.1160 0.3053 -0.64900 2006 3 5 53799 0.1153 0.3046 -0.64984 2006 3 6 53800 0.1146 0.3039 -0.65039 2006 3 7 53801 0.1139 0.3032 -0.65075 2006 3 8 53802 0.1131 0.3025 -0.65106 2006 3 9 53803 0.1123 0.3018 -0.65138 2006 3 10 53804 0.1116 0.3011 -0.65173 2006 3 11 53805 0.1108 0.3004 -0.65216 2006 3 12 53806 0.1100 0.2998 -0.65267 2006 3 13 53807 0.1092 0.2991 -0.65334 2006 3 14 53808 0.1084 0.2985 -0.65412 2006 3 15 53809 0.1076 0.2978 -0.65506 2006 3 16 53810 0.1068 0.2972 -0.65604 2006 3 17 53811 0.1060 0.2966 -0.65699 2006 3 18 53812 0.1052 0.2959 -0.65785 2006 3 19 53813 0.1044 0.2953 -0.65857 2006 3 20 53814 0.1035 0.2947 -0.65903 2006 3 21 53815 0.1027 0.2942 -0.65928 2006 3 22 53816 0.1019 0.2936 -0.65933 2006 3 23 53817 0.1010 0.2930 -0.65927 2006 3 24 53818 0.1002 0.2924 -0.65930 2006 3 25 53819 0.0993 0.2919 -0.65958 2006 3 26 53820 0.0984 0.2914 -0.66025 2006 3 27 53821 0.0976 0.2908 -0.66129 2006 3 28 53822 0.0967 0.2903 -0.66269 2006 3 29 53823 0.0958 0.2898 -0.66434 2006 3 30 53824 0.0949 0.2893 -0.66596 2006 3 31 53825 0.0941 0.2888 -0.66746 2006 4 1 53826 0.0932 0.2883 -0.66870 2006 4 2 53827 0.0923 0.2878 -0.66961 2006 4 3 53828 0.0914 0.2873 -0.67030 2006 4 4 53829 0.0905 0.2868 -0.67081 2006 4 5 53830 0.0896 0.2864 -0.67125 2006 4 6 53831 0.0887 0.2859 -0.67169 2006 4 7 53832 0.0878 0.2855 -0.67221 2006 4 8 53833 0.0869 0.2851 -0.67282 2006 4 9 53834 0.0860 0.2846 -0.67355 2006 4 10 53835 0.0851 0.2842 -0.67439 2006 4 11 53836 0.0842 0.2838 -0.67536 2006 4 12 53837 0.0833 0.2834 -0.67642 2006 4 13 53838 0.0823 0.2830 -0.67750 2006 4 14 53839 0.0814 0.2826 -0.67850 2006 4 15 53840 0.0805 0.2823 -0.67939 2006 4 16 53841 0.0796 0.2819 -0.68007 2006 4 17 53842 0.0787 0.2815 -0.68047 2006 4 18 53843 0.0778 0.2812 -0.68062 2006 4 19 53844 0.0769 0.2809 -0.68056 2006 4 20 53845 0.0759 0.2805 -0.68044 2006 4 21 53846 0.0750 0.2802 -0.68042 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) 53466 -52.53 .15 -4.81 .34 53467 -52.66 .15 -4.62 .34 53468 -52.81 .15 -4.48 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53466 -0.105 0.060 -0.328 0.340 53467 -0.105 0.060 -0.296 0.340 53468 -0.119 0.060 -0.256 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 **************************************************************************