********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 12 May 2005 Vol. XVIII No. 019 ______________________________________________________________________ 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 5 6 53496 -.06092 .00006 .30758 .00005 -.603194 .000010 5 5 7 53497 -.06075 .00008 .30952 .00005 -.604423 .000014 5 5 8 53498 -.06064 .00007 .31130 .00005 -.605480 .000015 5 5 9 53499 -.06068 .00006 .31292 .00004 -.606287 .000014 5 5 10 53500 -.06088 .00005 .31448 .00004 -.606838 .000012 5 5 11 53501 -.06129 .00006 .31593 .00003 -.607193 .000013 5 5 12 53502 -.06201 .00005 .31727 .00002 -.607518 .000013 _______________________________________________________________________ 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 = .0611 - .0319 cos A + .0605 sin A - .0841 cos C - .0987 sin C y = .3500 + .0585 cos A + .0353 sin A - .0987 cos C + .0841 sin C UT1-UTC = -.5826 - .00037 (MJD - 53507) - (UT2-UT1) where A = 2*pi*(MJD-53502)/365.25 and C = 2*pi*(MJD-53502)/435. TAI-UTC(MJD 53503) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53502)**0.80 S t = 0.00025 (MJD-53502)**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 5 13 53503 -0.0628 0.3186 -0.60794 2005 5 14 53504 -0.0635 0.3200 -0.60844 2005 5 15 53505 -0.0641 0.3215 -0.60904 2005 5 16 53506 -0.0646 0.3231 -0.60979 2005 5 17 53507 -0.0650 0.3247 -0.61074 2005 5 18 53508 -0.0653 0.3263 -0.61184 2005 5 19 53509 -0.0656 0.3280 -0.61307 2005 5 20 53510 -0.0659 0.3297 -0.61435 2005 5 21 53511 -0.0661 0.3314 -0.61554 2005 5 22 53512 -0.0662 0.3331 -0.61657 2005 5 23 53513 -0.0663 0.3349 -0.61734 2005 5 24 53514 -0.0663 0.3366 -0.61782 2005 5 25 53515 -0.0664 0.3384 -0.61804 2005 5 26 53516 -0.0663 0.3402 -0.61811 2005 5 27 53517 -0.0663 0.3419 -0.61815 2005 5 28 53518 -0.0662 0.3437 -0.61832 2005 5 29 53519 -0.0661 0.3455 -0.61872 2005 5 30 53520 -0.0660 0.3472 -0.61935 2005 5 31 53521 -0.0658 0.3490 -0.62015 2005 6 1 53522 -0.0656 0.3508 -0.62103 2005 6 2 53523 -0.0654 0.3525 -0.62186 2005 6 3 53524 -0.0651 0.3542 -0.62253 2005 6 4 53525 -0.0648 0.3560 -0.62293 2005 6 5 53526 -0.0645 0.3577 -0.62303 2005 6 6 53527 -0.0642 0.3594 -0.62284 2005 6 7 53528 -0.0638 0.3611 -0.62242 2005 6 8 53529 -0.0634 0.3628 -0.62183 2005 6 9 53530 -0.0630 0.3645 -0.62115 2005 6 10 53531 -0.0626 0.3662 -0.62048 2005 6 11 53532 -0.0621 0.3678 -0.61989 2005 6 12 53533 -0.0616 0.3695 -0.61943 2005 6 13 53534 -0.0611 0.3711 -0.61913 2005 6 14 53535 -0.0606 0.3728 -0.61898 2005 6 15 53536 -0.0600 0.3744 -0.61896 2005 6 16 53537 -0.0594 0.3760 -0.61902 2005 6 17 53538 -0.0588 0.3776 -0.61909 2005 6 18 53539 -0.0582 0.3792 -0.61909 2005 6 19 53540 -0.0576 0.3807 -0.61894 2005 6 20 53541 -0.0569 0.3823 -0.61857 2005 6 21 53542 -0.0562 0.3838 -0.61798 2005 6 22 53543 -0.0555 0.3854 -0.61723 2005 6 23 53544 -0.0547 0.3869 -0.61646 2005 6 24 53545 -0.0539 0.3884 -0.61583 2005 6 25 53546 -0.0532 0.3899 -0.61545 2005 6 26 53547 -0.0523 0.3914 -0.61537 2005 6 27 53548 -0.0515 0.3928 -0.61553 2005 6 28 53549 -0.0507 0.3943 -0.61585 2005 6 29 53550 -0.0498 0.3957 -0.61616 2005 6 30 53551 -0.0489 0.3971 -0.61636 2005 7 1 53552 -0.0480 0.3986 -0.61634 2005 7 2 53553 -0.0470 0.4000 -0.61608 2005 7 3 53554 -0.0461 0.4013 -0.61558 2005 7 4 53555 -0.0451 0.4027 -0.61488 2005 7 5 53556 -0.0441 0.4041 -0.61404 2005 7 6 53557 -0.0431 0.4054 -0.61314 2005 7 7 53558 -0.0420 0.4067 -0.61225 2005 7 8 53559 -0.0410 0.4080 -0.61145 2005 7 9 53560 -0.0399 0.4093 -0.61077 2005 7 10 53561 -0.0388 0.4107 -0.61027 2005 7 11 53562 -0.0377 0.4119 -0.60992 2005 7 12 53563 -0.0366 0.4132 -0.60973 2005 7 13 53564 -0.0355 0.4144 -0.60964 2005 7 14 53565 -0.0343 0.4156 -0.60959 2005 7 15 53566 -0.0332 0.4168 -0.60952 2005 7 16 53567 -0.0320 0.4180 -0.60935 2005 7 17 53568 -0.0308 0.4191 -0.60900 2005 7 18 53569 -0.0296 0.4203 -0.60845 2005 7 19 53570 -0.0284 0.4214 -0.60772 2005 7 20 53571 -0.0271 0.4225 -0.60690 2005 7 21 53572 -0.0259 0.4236 -0.60614 2005 7 22 53573 -0.0246 0.4247 -0.60559 2005 7 23 53574 -0.0234 0.4258 -0.60534 2005 7 24 53575 -0.0221 0.4268 -0.60538 2005 7 25 53576 -0.0208 0.4279 -0.60562 2005 7 26 53577 -0.0195 0.4289 -0.60590 2005 7 27 53578 -0.0181 0.4299 -0.60608 2005 7 28 53579 -0.0168 0.4308 -0.60605 2005 7 29 53580 -0.0155 0.4318 -0.60575 2005 7 30 53581 -0.0141 0.4327 -0.60519 2005 7 31 53582 -0.0128 0.4337 -0.60443 2005 8 1 53583 -0.0114 0.4346 -0.60352 2005 8 2 53584 -0.0100 0.4355 -0.60255 2005 8 3 53585 -0.0086 0.4363 -0.60159 2005 8 4 53586 -0.0073 0.4372 -0.60073 2005 8 5 53587 -0.0059 0.4380 -0.60001 2005 8 6 53588 -0.0045 0.4388 -0.59947 2005 8 7 53589 -0.0030 0.4396 -0.59913 2005 8 8 53590 -0.0016 0.4404 -0.59895 2005 8 9 53591 -0.0002 0.4411 -0.59889 2005 8 10 53592 0.0012 0.4419 -0.59889 2005 8 11 53593 0.0027 0.4426 -0.59888 2005 8 12 53594 0.0041 0.4433 -0.59878 2005 8 13 53595 0.0055 0.4440 -0.59854 2005 8 14 53596 0.0070 0.4446 -0.59811 2005 8 15 53597 0.0084 0.4452 -0.59751 2005 8 16 53598 0.0099 0.4459 -0.59681 2005 8 17 53599 0.0113 0.4465 -0.59612 2005 8 18 53600 0.0128 0.4470 -0.59561 2005 8 19 53601 0.0142 0.4476 -0.59539 2005 8 20 53602 0.0157 0.4481 -0.59551 2005 8 21 53603 0.0172 0.4486 -0.59593 2005 8 22 53604 0.0186 0.4491 -0.59649 2005 8 23 53605 0.0201 0.4496 -0.59702 2005 8 24 53606 0.0216 0.4500 -0.59738 2005 8 25 53607 0.0230 0.4505 -0.59746 2005 8 26 53608 0.0245 0.4509 -0.59730 2005 8 27 53609 0.0259 0.4513 -0.59689 2005 8 28 53610 0.0274 0.4516 -0.59631 2005 8 29 53611 0.0288 0.4520 -0.59566 2005 8 30 53612 0.0303 0.4523 -0.59500 2005 8 31 53613 0.0318 0.4526 -0.59443 2005 9 1 53614 0.0332 0.4529 -0.59400 2005 9 2 53615 0.0347 0.4531 -0.59375 2005 9 3 53616 0.0361 0.4534 -0.59371 2005 9 4 53617 0.0375 0.4536 -0.59385 2005 9 5 53618 0.0390 0.4538 -0.59414 2005 9 6 53619 0.0404 0.4540 -0.59451 2005 9 7 53620 0.0418 0.4541 -0.59488 2005 9 8 53621 0.0433 0.4542 -0.59518 2005 9 9 53622 0.0447 0.4544 -0.59534 2005 9 10 53623 0.0461 0.4544 -0.59533 2005 9 11 53624 0.0475 0.4545 -0.59514 2005 9 12 53625 0.0489 0.4546 -0.59483 2005 9 13 53626 0.0503 0.4546 -0.59450 2005 9 14 53627 0.0517 0.4546 -0.59428 2005 9 15 53628 0.0531 0.4546 -0.59431 2005 9 16 53629 0.0545 0.4545 -0.59468 2005 9 17 53630 0.0558 0.4544 -0.59538 2005 9 18 53631 0.0572 0.4544 -0.59632 2005 9 19 53632 0.0585 0.4543 -0.59734 2005 9 20 53633 0.0599 0.4541 -0.59826 2005 9 21 53634 0.0612 0.4540 -0.59894 2005 9 22 53635 0.0626 0.4538 -0.59933 2005 9 23 53636 0.0639 0.4536 -0.59944 2005 9 24 53637 0.0652 0.4534 -0.59934 2005 9 25 53638 0.0665 0.4532 -0.59912 2005 9 26 53639 0.0678 0.4529 -0.59888 2005 9 27 53640 0.0691 0.4526 -0.59870 2005 9 28 53641 0.0704 0.4523 -0.59864 2005 9 29 53642 0.0717 0.4520 -0.59876 2005 9 30 53643 0.0729 0.4517 -0.59908 2005 10 1 53644 0.0742 0.4513 -0.59959 2005 10 2 53645 0.0754 0.4509 -0.60027 2005 10 3 53646 0.0766 0.4505 -0.60104 2005 10 4 53647 0.0779 0.4501 -0.60185 2005 10 5 53648 0.0791 0.4496 -0.60259 2005 10 6 53649 0.0803 0.4492 -0.60320 2005 10 7 53650 0.0815 0.4487 -0.60362 2005 10 8 53651 0.0826 0.4482 -0.60385 2005 10 9 53652 0.0838 0.4477 -0.60393 2005 10 10 53653 0.0850 0.4471 -0.60395 2005 10 11 53654 0.0861 0.4466 -0.60404 2005 10 12 53655 0.0872 0.4460 -0.60431 2005 10 13 53656 0.0884 0.4454 -0.60488 2005 10 14 53657 0.0895 0.4448 -0.60576 2005 10 15 53658 0.0906 0.4441 -0.60691 2005 10 16 53659 0.0917 0.4435 -0.60820 2005 10 17 53660 0.0927 0.4428 -0.60948 2005 10 18 53661 0.0938 0.4421 -0.61058 2005 10 19 53662 0.0948 0.4414 -0.61141 2005 10 20 53663 0.0959 0.4406 -0.61195 2005 10 21 53664 0.0969 0.4399 -0.61224 2005 10 22 53665 0.0979 0.4391 -0.61236 2005 10 23 53666 0.0989 0.4383 -0.61240 2005 10 24 53667 0.0999 0.4375 -0.61248 2005 10 25 53668 0.1009 0.4367 -0.61265 2005 10 26 53669 0.1018 0.4359 -0.61298 2005 10 27 53670 0.1028 0.4351 -0.61349 2005 10 28 53671 0.1037 0.4342 -0.61419 2005 10 29 53672 0.1046 0.4333 -0.61506 2005 10 30 53673 0.1055 0.4324 -0.61605 2005 10 31 53674 0.1064 0.4315 -0.61710 2005 11 1 53675 0.1073 0.4306 -0.61811 2005 11 2 53676 0.1082 0.4296 -0.61900 2005 11 3 53677 0.1090 0.4287 -0.61972 2005 11 4 53678 0.1099 0.4277 -0.62023 2005 11 5 53679 0.1107 0.4267 -0.62057 2005 11 6 53680 0.1115 0.4257 -0.62081 2005 11 7 53681 0.1123 0.4247 -0.62108 2005 11 8 53682 0.1131 0.4237 -0.62151 2005 11 9 53683 0.1139 0.4227 -0.62220 2005 11 10 53684 0.1146 0.4216 -0.62318 2005 11 11 53685 0.1153 0.4206 -0.62444 2005 11 12 53686 0.1161 0.4195 -0.62588 2005 11 13 53687 0.1168 0.4184 -0.62735 2005 11 14 53688 0.1175 0.4173 -0.62872 2005 11 15 53689 0.1182 0.4162 -0.62985 2005 11 16 53690 0.1188 0.4151 -0.63070 2005 11 17 53691 0.1195 0.4140 -0.63126 2005 11 18 53692 0.1201 0.4128 -0.63157 2005 11 19 53693 0.1208 0.4117 -0.63174 2005 11 20 53694 0.1214 0.4106 -0.63186 2005 11 21 53695 0.1221 0.4095 -0.63202 2005 11 22 53696 0.1227 0.4083 -0.63227 2005 11 23 53697 0.1233 0.4072 -0.63266 2005 11 24 53698 0.1239 0.4060 -0.63321 2005 11 25 53699 0.1245 0.4048 -0.63390 2005 11 26 53700 0.1250 0.4037 -0.63470 2005 11 27 53701 0.1256 0.4025 -0.63553 2005 11 28 53702 0.1261 0.4013 -0.63633 2005 11 29 53703 0.1266 0.4001 -0.63701 2005 11 30 53704 0.1271 0.3989 -0.63749 2005 12 1 53705 0.1276 0.3977 -0.63772 2005 12 2 53706 0.1281 0.3965 -0.63770 2005 12 3 53707 0.1285 0.3953 -0.63751 2005 12 4 53708 0.1290 0.3941 -0.63727 2005 12 5 53709 0.1294 0.3929 -0.63712 2005 12 6 53710 0.1298 0.3916 -0.63716 2005 12 7 53711 0.1302 0.3904 -0.63746 2005 12 8 53712 0.1306 0.3892 -0.63797 2005 12 9 53713 0.1309 0.3880 -0.63862 2005 12 10 53714 0.1313 0.3867 -0.63929 2005 12 11 53715 0.1316 0.3855 -0.63988 2005 12 12 53716 0.1319 0.3843 -0.64027 2005 12 13 53717 0.1322 0.3830 -0.64042 2005 12 14 53718 0.1325 0.3818 -0.64033 2005 12 15 53719 0.1328 0.3806 -0.64008 2005 12 16 53720 0.1330 0.3793 -0.63975 2005 12 17 53721 0.1333 0.3781 -0.63945 2005 12 18 53722 0.1335 0.3768 -0.63917 2005 12 19 53723 0.1337 0.3756 -0.63899 2005 12 20 53724 0.1339 0.3744 -0.63895 2005 12 21 53725 0.1341 0.3731 -0.63905 2005 12 22 53726 0.1343 0.3719 -0.63932 2005 12 23 53727 0.1344 0.3707 -0.63975 2005 12 24 53728 0.1346 0.3695 -0.64022 2005 12 25 53729 0.1347 0.3682 -0.64087 2005 12 26 53730 0.1348 0.3670 -0.64146 2005 12 27 53731 0.1349 0.3658 -0.64187 2005 12 28 53732 0.1349 0.3646 -0.64206 2005 12 29 53733 0.1350 0.3634 -0.64199 2005 12 30 53734 0.1350 0.3622 -0.64172 2005 12 31 53735 0.1351 0.3610 -0.64134 2006 1 1 53736 0.1351 0.3598 -0.64098 2006 1 2 53737 0.1351 0.3586 -0.64081 2006 1 3 53738 0.1351 0.3574 -0.64097 2006 1 4 53739 0.1350 0.3563 -0.64138 2006 1 5 53740 0.1350 0.3551 -0.64193 2006 1 6 53741 0.1349 0.3539 -0.64256 2006 1 7 53742 0.1349 0.3528 -0.64311 2006 1 8 53743 0.1348 0.3516 -0.64344 2006 1 9 53744 0.1347 0.3505 -0.64353 2006 1 10 53745 0.1346 0.3494 -0.64336 2006 1 11 53746 0.1344 0.3482 -0.64297 2006 1 12 53747 0.1343 0.3471 -0.64244 2006 1 13 53748 0.1341 0.3460 -0.64189 2006 1 14 53749 0.1339 0.3449 -0.64144 2006 1 15 53750 0.1337 0.3438 -0.64108 2006 1 16 53751 0.1335 0.3427 -0.64091 2006 1 17 53752 0.1333 0.3416 -0.64092 2006 1 18 53753 0.1331 0.3406 -0.64108 2006 1 19 53754 0.1328 0.3395 -0.64132 2006 1 20 53755 0.1326 0.3385 -0.64159 2006 1 21 53756 0.1323 0.3374 -0.64182 2006 1 22 53757 0.1320 0.3364 -0.64195 2006 1 23 53758 0.1317 0.3354 -0.64198 2006 1 24 53759 0.1314 0.3344 -0.64189 2006 1 25 53760 0.1311 0.3334 -0.64167 2006 1 26 53761 0.1307 0.3324 -0.64138 2006 1 27 53762 0.1304 0.3314 -0.64111 2006 1 28 53763 0.1300 0.3304 -0.64093 2006 1 29 53764 0.1296 0.3295 -0.64094 2006 1 30 53765 0.1292 0.3285 -0.64129 2006 1 31 53766 0.1288 0.3276 -0.64198 2006 2 1 53767 0.1284 0.3267 -0.64297 2006 2 2 53768 0.1280 0.3258 -0.64407 2006 2 3 53769 0.1276 0.3249 -0.64512 2006 2 4 53770 0.1271 0.3240 -0.64599 2006 2 5 53771 0.1266 0.3231 -0.64666 2006 2 6 53772 0.1261 0.3222 -0.64710 2006 2 7 53773 0.1257 0.3214 -0.64739 2006 2 8 53774 0.1252 0.3205 -0.64747 2006 2 9 53775 0.1246 0.3197 -0.64749 2006 2 10 53776 0.1241 0.3189 -0.64757 2006 2 11 53777 0.1236 0.3181 -0.64777 2006 2 12 53778 0.1230 0.3173 -0.64809 2006 2 13 53779 0.1225 0.3165 -0.64856 2006 2 14 53780 0.1219 0.3157 -0.64920 2006 2 15 53781 0.1213 0.3149 -0.64997 2006 2 16 53782 0.1207 0.3142 -0.65084 2006 2 17 53783 0.1201 0.3135 -0.65176 2006 2 18 53784 0.1195 0.3127 -0.65269 2006 2 19 53785 0.1189 0.3120 -0.65352 2006 2 20 53786 0.1183 0.3113 -0.65427 2006 2 21 53787 0.1176 0.3106 -0.65479 2006 2 22 53788 0.1170 0.3099 -0.65519 2006 2 23 53789 0.1163 0.3093 -0.65545 2006 2 24 53790 0.1156 0.3086 -0.65568 2006 2 25 53791 0.1150 0.3080 -0.65599 2006 2 26 53792 0.1143 0.3073 -0.65650 2006 2 27 53793 0.1136 0.3067 -0.65737 2006 2 28 53794 0.1129 0.3061 -0.65862 2006 3 1 53795 0.1122 0.3055 -0.66012 2006 3 2 53796 0.1115 0.3049 -0.66164 2006 3 3 53797 0.1107 0.3043 -0.66298 2006 3 4 53798 0.1100 0.3038 -0.66406 2006 3 5 53799 0.1093 0.3032 -0.66479 2006 3 6 53800 0.1085 0.3027 -0.66521 2006 3 7 53801 0.1078 0.3022 -0.66543 2006 3 8 53802 0.1070 0.3016 -0.66554 2006 3 9 53803 0.1062 0.3011 -0.66566 2006 3 10 53804 0.1055 0.3006 -0.66586 2006 3 11 53805 0.1047 0.3001 -0.66620 2006 3 12 53806 0.1039 0.2997 -0.66671 2006 3 13 53807 0.1031 0.2992 -0.66740 2006 3 14 53808 0.1023 0.2987 -0.66822 2006 3 15 53809 0.1015 0.2983 -0.66916 2006 3 16 53810 0.1007 0.2979 -0.67018 2006 3 17 53811 0.0999 0.2974 -0.67117 2006 3 18 53812 0.0991 0.2970 -0.67205 2006 3 19 53813 0.0982 0.2966 -0.67276 2006 3 20 53814 0.0974 0.2962 -0.67325 2006 3 21 53815 0.0966 0.2958 -0.67354 2006 3 22 53816 0.0958 0.2955 -0.67371 2006 3 23 53817 0.0949 0.2951 -0.67381 2006 3 24 53818 0.0941 0.2947 -0.67393 2006 3 25 53819 0.0932 0.2944 -0.67424 2006 3 26 53820 0.0924 0.2940 -0.67484 2006 3 27 53821 0.0915 0.2937 -0.67579 2006 3 28 53822 0.0907 0.2934 -0.67707 2006 3 29 53823 0.0898 0.2931 -0.67851 2006 3 30 53824 0.0890 0.2928 -0.67990 2006 3 31 53825 0.0881 0.2925 -0.68108 2006 4 1 53826 0.0873 0.2922 -0.68200 2006 4 2 53827 0.0864 0.2919 -0.68271 2006 4 3 53828 0.0856 0.2917 -0.68312 2006 4 4 53829 0.0847 0.2914 -0.68338 2006 4 5 53830 0.0838 0.2912 -0.68352 2006 4 6 53831 0.0830 0.2909 -0.68368 2006 4 7 53832 0.0821 0.2907 -0.68396 2006 4 8 53833 0.0812 0.2904 -0.68446 2006 4 9 53834 0.0804 0.2902 -0.68514 2006 4 10 53835 0.0795 0.2900 -0.68597 2006 4 11 53836 0.0787 0.2898 -0.68697 2006 4 12 53837 0.0778 0.2896 -0.68807 2006 4 13 53838 0.0769 0.2894 -0.68918 2006 4 14 53839 0.0761 0.2892 -0.69027 2006 4 15 53840 0.0752 0.2891 -0.69117 2006 4 16 53841 0.0744 0.2889 -0.69191 2006 4 17 53842 0.0735 0.2887 -0.69243 2006 4 18 53843 0.0726 0.2886 -0.69282 2006 4 19 53844 0.0718 0.2884 -0.69317 2006 4 20 53845 0.0709 0.2883 -0.69354 2006 4 21 53846 0.0701 0.2882 -0.69401 2006 4 22 53847 0.0693 0.2880 -0.69465 2006 4 23 53848 0.0684 0.2879 -0.69551 2006 4 24 53849 0.0676 0.2878 -0.69663 2006 4 25 53850 0.0667 0.2877 -0.69791 2006 4 26 53851 0.0659 0.2876 -0.69925 2006 4 27 53852 0.0651 0.2875 -0.70044 2006 4 28 53853 0.0642 0.2874 -0.70135 2006 4 29 53854 0.0634 0.2873 -0.70192 2006 4 30 53855 0.0626 0.2873 -0.70216 2006 5 1 53856 0.0618 0.2872 -0.70211 2006 5 2 53857 0.0610 0.2871 -0.70191 2006 5 3 53858 0.0602 0.2871 -0.70164 2006 5 4 53859 0.0594 0.2870 -0.70141 2006 5 5 53860 0.0586 0.2870 -0.70133 2006 5 6 53861 0.0578 0.2869 -0.70146 2006 5 7 53862 0.0570 0.2869 -0.70183 2006 5 8 53863 0.0562 0.2869 -0.70233 2006 5 9 53864 0.0554 0.2869 -0.70297 2006 5 10 53865 0.0546 0.2869 -0.70371 2006 5 11 53866 0.0538 0.2868 -0.70439 2006 5 12 53867 0.0531 0.2868 -0.70503 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) 53483 -53.14 .13 -4.76 .34 53484 -53.33 .22 -4.72 .34 53485 -53.56 .22 -4.81 .34 53486 -53.83 .28 -5.01 .34 53487 -54.02 .28 -5.25 .34 53488 -53.95 .28 -5.46 .34 53489 -53.59 .28 -5.62 .34 53490 -53.07 .74 -5.68 .34 53491 -52.60 .34 -5.67 .34 53492 -52.30 .34 -5.61 .34 53493 -52.21 .34 -5.52 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53483 -0.175 0.052 -0.180 0.340 53484 -0.187 0.088 -0.194 0.340 53485 -0.190 0.088 -0.218 0.340 53486 -0.176 0.111 -0.242 0.340 53487 -0.159 0.111 -0.244 0.340 53488 -0.143 0.111 -0.227 0.340 53489 -0.131 0.111 -0.232 0.340 53490 -0.123 0.294 -0.220 0.340 53491 -0.125 0.135 -0.205 0.340 53492 -0.131 0.135 -0.185 0.340 53493 -0.142 0.135 -0.174 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 **************************************************************************