********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 19 May 2005 Vol. XVIII No. 020 ______________________________________________________________________ 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 13 53503 -.06307 .00004 .31872 .00005 -.607667 .000015 5 5 14 53504 -.06447 .00003 .32008 .00005 -.607951 .000017 5 5 15 53505 -.06577 .00003 .32156 .00005 -.608356 .000016 5 5 16 53506 -.06674 .00002 .32322 .00004 -.608896 .000014 5 5 17 53507 -.06749 .00002 .32477 .00003 -.609608 .000012 5 5 18 53508 -.06833 .00002 .32619 .00002 -.610456 .000010 5 5 19 53509 -.06912 .00002 .32748 .00002 -.611447 .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 = .0558 - .0300 cos A + .0646 sin A - .0916 cos C - .0887 sin C y = .3501 + .0627 cos A + .0304 sin A - .0887 cos C + .0916 sin C UT1-UTC = -.5864 - .00038 (MJD - 53514) - (UT2-UT1) where A = 2*pi*(MJD-53509)/365.25 and C = 2*pi*(MJD-53509)/435. TAI-UTC(MJD 53510) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53509)**0.80 S t = 0.00025 (MJD-53509)**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 20 53510 -0.0698 0.3288 -0.61256 2005 5 21 53511 -0.0704 0.3301 -0.61369 2005 5 22 53512 -0.0709 0.3316 -0.61472 2005 5 23 53513 -0.0713 0.3331 -0.61553 2005 5 24 53514 -0.0716 0.3346 -0.61609 2005 5 25 53515 -0.0718 0.3362 -0.61640 2005 5 26 53516 -0.0719 0.3379 -0.61657 2005 5 27 53517 -0.0720 0.3395 -0.61672 2005 5 28 53518 -0.0720 0.3412 -0.61696 2005 5 29 53519 -0.0719 0.3429 -0.61742 2005 5 30 53520 -0.0718 0.3447 -0.61813 2005 5 31 53521 -0.0716 0.3464 -0.61902 2005 6 1 53522 -0.0714 0.3482 -0.62000 2005 6 2 53523 -0.0711 0.3499 -0.62094 2005 6 3 53524 -0.0708 0.3517 -0.62171 2005 6 4 53525 -0.0705 0.3535 -0.62225 2005 6 5 53526 -0.0701 0.3552 -0.62252 2005 6 6 53527 -0.0697 0.3570 -0.62252 2005 6 7 53528 -0.0693 0.3588 -0.62232 2005 6 8 53529 -0.0688 0.3605 -0.62198 2005 6 9 53530 -0.0683 0.3622 -0.62158 2005 6 10 53531 -0.0678 0.3640 -0.62120 2005 6 11 53532 -0.0673 0.3657 -0.62091 2005 6 12 53533 -0.0667 0.3674 -0.62074 2005 6 13 53534 -0.0661 0.3691 -0.62073 2005 6 14 53535 -0.0654 0.3708 -0.62084 2005 6 15 53536 -0.0648 0.3725 -0.62106 2005 6 16 53537 -0.0641 0.3741 -0.62134 2005 6 17 53538 -0.0634 0.3758 -0.62162 2005 6 18 53539 -0.0627 0.3774 -0.62179 2005 6 19 53540 -0.0619 0.3790 -0.62179 2005 6 20 53541 -0.0612 0.3807 -0.62153 2005 6 21 53542 -0.0604 0.3822 -0.62102 2005 6 22 53543 -0.0595 0.3838 -0.62032 2005 6 23 53544 -0.0587 0.3854 -0.61956 2005 6 24 53545 -0.0579 0.3869 -0.61889 2005 6 25 53546 -0.0570 0.3885 -0.61843 2005 6 26 53547 -0.0561 0.3900 -0.61823 2005 6 27 53548 -0.0552 0.3915 -0.61824 2005 6 28 53549 -0.0542 0.3930 -0.61836 2005 6 29 53550 -0.0533 0.3944 -0.61848 2005 6 30 53551 -0.0523 0.3959 -0.61846 2005 7 1 53552 -0.0513 0.3973 -0.61822 2005 7 2 53553 -0.0503 0.3988 -0.61775 2005 7 3 53554 -0.0492 0.4002 -0.61706 2005 7 4 53555 -0.0482 0.4016 -0.61620 2005 7 5 53556 -0.0471 0.4029 -0.61522 2005 7 6 53557 -0.0460 0.4043 -0.61421 2005 7 7 53558 -0.0449 0.4056 -0.61324 2005 7 8 53559 -0.0438 0.4070 -0.61237 2005 7 9 53560 -0.0427 0.4083 -0.61167 2005 7 10 53561 -0.0415 0.4096 -0.61116 2005 7 11 53562 -0.0404 0.4108 -0.61083 2005 7 12 53563 -0.0392 0.4121 -0.61066 2005 7 13 53564 -0.0380 0.4133 -0.61059 2005 7 14 53565 -0.0368 0.4145 -0.61058 2005 7 15 53566 -0.0356 0.4157 -0.61054 2005 7 16 53567 -0.0343 0.4169 -0.61040 2005 7 17 53568 -0.0331 0.4181 -0.61007 2005 7 18 53569 -0.0318 0.4193 -0.60954 2005 7 19 53570 -0.0305 0.4204 -0.60881 2005 7 20 53571 -0.0292 0.4215 -0.60798 2005 7 21 53572 -0.0279 0.4226 -0.60722 2005 7 22 53573 -0.0266 0.4237 -0.60665 2005 7 23 53574 -0.0253 0.4247 -0.60639 2005 7 24 53575 -0.0239 0.4258 -0.60642 2005 7 25 53576 -0.0226 0.4268 -0.60666 2005 7 26 53577 -0.0212 0.4279 -0.60696 2005 7 27 53578 -0.0198 0.4289 -0.60716 2005 7 28 53579 -0.0184 0.4298 -0.60715 2005 7 29 53580 -0.0170 0.4308 -0.60688 2005 7 30 53581 -0.0156 0.4317 -0.60635 2005 7 31 53582 -0.0142 0.4326 -0.60562 2005 8 1 53583 -0.0128 0.4335 -0.60474 2005 8 2 53584 -0.0113 0.4344 -0.60380 2005 8 3 53585 -0.0099 0.4352 -0.60287 2005 8 4 53586 -0.0085 0.4360 -0.60203 2005 8 5 53587 -0.0070 0.4369 -0.60132 2005 8 6 53588 -0.0056 0.4377 -0.60080 2005 8 7 53589 -0.0041 0.4384 -0.60047 2005 8 8 53590 -0.0027 0.4392 -0.60031 2005 8 9 53591 -0.0012 0.4399 -0.60027 2005 8 10 53592 0.0003 0.4406 -0.60029 2005 8 11 53593 0.0017 0.4413 -0.60031 2005 8 12 53594 0.0032 0.4420 -0.60024 2005 8 13 53595 0.0047 0.4427 -0.60002 2005 8 14 53596 0.0062 0.4433 -0.59963 2005 8 15 53597 0.0077 0.4439 -0.59906 2005 8 16 53598 0.0092 0.4445 -0.59838 2005 8 17 53599 0.0107 0.4451 -0.59773 2005 8 18 53600 0.0121 0.4456 -0.59724 2005 8 19 53601 0.0136 0.4462 -0.59704 2005 8 20 53602 0.0151 0.4467 -0.59719 2005 8 21 53603 0.0166 0.4472 -0.59763 2005 8 22 53604 0.0181 0.4477 -0.59821 2005 8 23 53605 0.0196 0.4481 -0.59877 2005 8 24 53606 0.0211 0.4485 -0.59916 2005 8 25 53607 0.0226 0.4489 -0.59927 2005 8 26 53608 0.0241 0.4493 -0.59911 2005 8 27 53609 0.0256 0.4497 -0.59871 2005 8 28 53610 0.0271 0.4500 -0.59815 2005 8 29 53611 0.0286 0.4504 -0.59750 2005 8 30 53612 0.0301 0.4507 -0.59687 2005 8 31 53613 0.0316 0.4510 -0.59632 2005 9 1 53614 0.0331 0.4512 -0.59591 2005 9 2 53615 0.0346 0.4515 -0.59571 2005 9 3 53616 0.0360 0.4517 -0.59571 2005 9 4 53617 0.0375 0.4519 -0.59590 2005 9 5 53618 0.0390 0.4521 -0.59623 2005 9 6 53619 0.0404 0.4522 -0.59664 2005 9 7 53620 0.0419 0.4524 -0.59706 2005 9 8 53621 0.0433 0.4525 -0.59740 2005 9 9 53622 0.0448 0.4526 -0.59760 2005 9 10 53623 0.0462 0.4526 -0.59763 2005 9 11 53624 0.0477 0.4527 -0.59748 2005 9 12 53625 0.0491 0.4527 -0.59721 2005 9 13 53626 0.0505 0.4527 -0.59691 2005 9 14 53627 0.0519 0.4527 -0.59673 2005 9 15 53628 0.0534 0.4527 -0.59679 2005 9 16 53629 0.0548 0.4526 -0.59719 2005 9 17 53630 0.0562 0.4525 -0.59792 2005 9 18 53631 0.0575 0.4524 -0.59888 2005 9 19 53632 0.0589 0.4523 -0.59993 2005 9 20 53633 0.0603 0.4522 -0.60087 2005 9 21 53634 0.0617 0.4520 -0.60157 2005 9 22 53635 0.0630 0.4518 -0.60199 2005 9 23 53636 0.0644 0.4516 -0.60213 2005 9 24 53637 0.0657 0.4514 -0.60205 2005 9 25 53638 0.0670 0.4512 -0.60186 2005 9 26 53639 0.0684 0.4509 -0.60164 2005 9 27 53640 0.0697 0.4506 -0.60148 2005 9 28 53641 0.0710 0.4503 -0.60145 2005 9 29 53642 0.0723 0.4500 -0.60160 2005 9 30 53643 0.0735 0.4496 -0.60194 2005 10 1 53644 0.0748 0.4493 -0.60248 2005 10 2 53645 0.0761 0.4489 -0.60317 2005 10 3 53646 0.0773 0.4485 -0.60397 2005 10 4 53647 0.0785 0.4481 -0.60479 2005 10 5 53648 0.0798 0.4476 -0.60555 2005 10 6 53649 0.0810 0.4471 -0.60617 2005 10 7 53650 0.0822 0.4467 -0.60661 2005 10 8 53651 0.0834 0.4461 -0.60685 2005 10 9 53652 0.0846 0.4456 -0.60693 2005 10 10 53653 0.0857 0.4451 -0.60696 2005 10 11 53654 0.0869 0.4445 -0.60704 2005 10 12 53655 0.0880 0.4439 -0.60732 2005 10 13 53656 0.0892 0.4433 -0.60788 2005 10 14 53657 0.0903 0.4427 -0.60876 2005 10 15 53658 0.0914 0.4421 -0.60991 2005 10 16 53659 0.0925 0.4414 -0.61120 2005 10 17 53660 0.0936 0.4407 -0.61248 2005 10 18 53661 0.0947 0.4400 -0.61358 2005 10 19 53662 0.0957 0.4393 -0.61441 2005 10 20 53663 0.0968 0.4386 -0.61495 2005 10 21 53664 0.0978 0.4379 -0.61523 2005 10 22 53665 0.0988 0.4371 -0.61534 2005 10 23 53666 0.0998 0.4363 -0.61539 2005 10 24 53667 0.1008 0.4355 -0.61545 2005 10 25 53668 0.1018 0.4347 -0.61561 2005 10 26 53669 0.1028 0.4339 -0.61593 2005 10 27 53670 0.1037 0.4331 -0.61642 2005 10 28 53671 0.1046 0.4322 -0.61711 2005 10 29 53672 0.1056 0.4313 -0.61795 2005 10 30 53673 0.1065 0.4304 -0.61891 2005 10 31 53674 0.1074 0.4295 -0.61991 2005 11 1 53675 0.1083 0.4286 -0.62089 2005 11 2 53676 0.1091 0.4277 -0.62174 2005 11 3 53677 0.1100 0.4267 -0.62240 2005 11 4 53678 0.1108 0.4258 -0.62286 2005 11 5 53679 0.1117 0.4248 -0.62313 2005 11 6 53680 0.1125 0.4238 -0.62331 2005 11 7 53681 0.1133 0.4228 -0.62351 2005 11 8 53682 0.1140 0.4218 -0.62386 2005 11 9 53683 0.1148 0.4208 -0.62446 2005 11 10 53684 0.1156 0.4197 -0.62536 2005 11 11 53685 0.1163 0.4187 -0.62652 2005 11 12 53686 0.1170 0.4176 -0.62785 2005 11 13 53687 0.1177 0.4166 -0.62923 2005 11 14 53688 0.1184 0.4155 -0.63050 2005 11 15 53689 0.1191 0.4144 -0.63157 2005 11 16 53690 0.1198 0.4133 -0.63237 2005 11 17 53691 0.1204 0.4122 -0.63293 2005 11 18 53692 0.1211 0.4111 -0.63330 2005 11 19 53693 0.1217 0.4099 -0.63358 2005 11 20 53694 0.1223 0.4088 -0.63385 2005 11 21 53695 0.1229 0.4076 -0.63419 2005 11 22 53696 0.1235 0.4065 -0.63466 2005 11 23 53697 0.1240 0.4053 -0.63528 2005 11 24 53698 0.1246 0.4041 -0.63605 2005 11 25 53699 0.1251 0.4030 -0.63694 2005 11 26 53700 0.1257 0.4018 -0.63791 2005 11 27 53701 0.1262 0.4006 -0.63892 2005 11 28 53702 0.1267 0.3994 -0.63988 2005 11 29 53703 0.1272 0.3982 -0.64073 2005 11 30 53704 0.1276 0.3970 -0.64139 2005 12 1 53705 0.1281 0.3958 -0.64182 2005 12 2 53706 0.1285 0.3946 -0.64203 2005 12 3 53707 0.1289 0.3934 -0.64208 2005 12 4 53708 0.1293 0.3922 -0.64210 2005 12 5 53709 0.1297 0.3909 -0.64223 2005 12 6 53710 0.1301 0.3897 -0.64256 2005 12 7 53711 0.1305 0.3885 -0.64316 2005 12 8 53712 0.1308 0.3872 -0.64399 2005 12 9 53713 0.1311 0.3860 -0.64495 2005 12 10 53714 0.1315 0.3848 -0.64591 2005 12 11 53715 0.1318 0.3835 -0.64673 2005 12 12 53716 0.1321 0.3823 -0.64730 2005 12 13 53717 0.1323 0.3811 -0.64757 2005 12 14 53718 0.1326 0.3798 -0.64756 2005 12 15 53719 0.1328 0.3786 -0.64731 2005 12 16 53720 0.1330 0.3773 -0.64691 2005 12 17 53721 0.1333 0.3761 -0.64647 2005 12 18 53722 0.1335 0.3748 -0.64606 2005 12 19 53723 0.1336 0.3736 -0.64574 2005 12 20 53724 0.1338 0.3724 -0.64553 2005 12 21 53725 0.1339 0.3711 -0.64544 2005 12 22 53726 0.1341 0.3699 -0.64547 2005 12 23 53727 0.1342 0.3687 -0.64564 2005 12 24 53728 0.1343 0.3674 -0.64590 2005 12 25 53729 0.1344 0.3662 -0.64619 2005 12 26 53730 0.1345 0.3650 -0.64643 2005 12 27 53731 0.1345 0.3638 -0.64655 2005 12 28 53732 0.1346 0.3626 -0.64652 2005 12 29 53733 0.1346 0.3614 -0.64634 2005 12 30 53734 0.1346 0.3602 -0.64607 2005 12 31 53735 0.1346 0.3590 -0.64585 2006 1 1 53736 0.1346 0.3578 -0.64564 2006 1 2 53737 0.1346 0.3566 -0.64564 2006 1 3 53738 0.1345 0.3554 -0.64592 2006 1 4 53739 0.1345 0.3542 -0.64646 2006 1 5 53740 0.1344 0.3530 -0.64720 2006 1 6 53741 0.1343 0.3519 -0.64803 2006 1 7 53742 0.1342 0.3507 -0.64874 2006 1 8 53743 0.1341 0.3496 -0.64941 2006 1 9 53744 0.1340 0.3484 -0.64981 2006 1 10 53745 0.1338 0.3473 -0.64990 2006 1 11 53746 0.1337 0.3462 -0.64974 2006 1 12 53747 0.1335 0.3451 -0.64936 2006 1 13 53748 0.1333 0.3439 -0.64889 2006 1 14 53749 0.1331 0.3428 -0.64841 2006 1 15 53750 0.1329 0.3418 -0.64796 2006 1 16 53751 0.1327 0.3407 -0.64766 2006 1 17 53752 0.1324 0.3396 -0.64756 2006 1 18 53753 0.1322 0.3385 -0.64760 2006 1 19 53754 0.1319 0.3375 -0.64773 2006 1 20 53755 0.1316 0.3364 -0.64797 2006 1 21 53756 0.1313 0.3354 -0.64824 2006 1 22 53757 0.1310 0.3344 -0.64847 2006 1 23 53758 0.1307 0.3334 -0.64862 2006 1 24 53759 0.1303 0.3324 -0.64862 2006 1 25 53760 0.1300 0.3314 -0.64846 2006 1 26 53761 0.1296 0.3304 -0.64812 2006 1 27 53762 0.1292 0.3294 -0.64773 2006 1 28 53763 0.1288 0.3285 -0.64745 2006 1 29 53764 0.1284 0.3275 -0.64735 2006 1 30 53765 0.1280 0.3266 -0.64758 2006 1 31 53766 0.1276 0.3256 -0.64816 2006 2 1 53767 0.1272 0.3247 -0.64898 2006 2 2 53768 0.1267 0.3238 -0.64988 2006 2 3 53769 0.1262 0.3229 -0.65069 2006 2 4 53770 0.1258 0.3221 -0.65122 2006 2 5 53771 0.1253 0.3212 -0.65143 2006 2 6 53772 0.1248 0.3204 -0.65133 2006 2 7 53773 0.1243 0.3195 -0.65101 2006 2 8 53774 0.1238 0.3187 -0.65060 2006 2 9 53775 0.1232 0.3179 -0.65020 2006 2 10 53776 0.1227 0.3171 -0.64994 2006 2 11 53777 0.1221 0.3163 -0.64982 2006 2 12 53778 0.1216 0.3155 -0.64986 2006 2 13 53779 0.1210 0.3147 -0.65011 2006 2 14 53780 0.1204 0.3140 -0.65056 2006 2 15 53781 0.1198 0.3132 -0.65118 2006 2 16 53782 0.1192 0.3125 -0.65189 2006 2 17 53783 0.1186 0.3118 -0.65264 2006 2 18 53784 0.1180 0.3111 -0.65336 2006 2 19 53785 0.1173 0.3104 -0.65410 2006 2 20 53786 0.1167 0.3097 -0.65474 2006 2 21 53787 0.1160 0.3090 -0.65531 2006 2 22 53788 0.1154 0.3084 -0.65567 2006 2 23 53789 0.1147 0.3078 -0.65593 2006 2 24 53790 0.1140 0.3071 -0.65622 2006 2 25 53791 0.1133 0.3065 -0.65665 2006 2 26 53792 0.1126 0.3059 -0.65732 2006 2 27 53793 0.1119 0.3053 -0.65833 2006 2 28 53794 0.1112 0.3047 -0.65965 2006 3 1 53795 0.1105 0.3042 -0.66119 2006 3 2 53796 0.1098 0.3036 -0.66277 2006 3 3 53797 0.1090 0.3031 -0.66422 2006 3 4 53798 0.1083 0.3026 -0.66544 2006 3 5 53799 0.1075 0.3020 -0.66633 2006 3 6 53800 0.1068 0.3015 -0.66698 2006 3 7 53801 0.1060 0.3010 -0.66737 2006 3 8 53802 0.1052 0.3006 -0.66768 2006 3 9 53803 0.1045 0.3001 -0.66798 2006 3 10 53804 0.1037 0.2996 -0.66832 2006 3 11 53805 0.1029 0.2992 -0.66875 2006 3 12 53806 0.1021 0.2988 -0.66929 2006 3 13 53807 0.1013 0.2983 -0.67003 2006 3 14 53808 0.1005 0.2979 -0.67095 2006 3 15 53809 0.0997 0.2975 -0.67202 2006 3 16 53810 0.0989 0.2971 -0.67311 2006 3 17 53811 0.0981 0.2967 -0.67414 2006 3 18 53812 0.0972 0.2964 -0.67509 2006 3 19 53813 0.0964 0.2960 -0.67588 2006 3 20 53814 0.0956 0.2957 -0.67647 2006 3 21 53815 0.0948 0.2953 -0.67690 2006 3 22 53816 0.0939 0.2950 -0.67718 2006 3 23 53817 0.0931 0.2947 -0.67742 2006 3 24 53818 0.0923 0.2944 -0.67773 2006 3 25 53819 0.0914 0.2941 -0.67823 2006 3 26 53820 0.0906 0.2938 -0.67905 2006 3 27 53821 0.0897 0.2935 -0.68021 2006 3 28 53822 0.0889 0.2933 -0.68164 2006 3 29 53823 0.0880 0.2930 -0.68321 2006 3 30 53824 0.0872 0.2928 -0.68477 2006 3 31 53825 0.0863 0.2925 -0.68610 2006 4 1 53826 0.0855 0.2923 -0.68708 2006 4 2 53827 0.0846 0.2921 -0.68770 2006 4 3 53828 0.0837 0.2919 -0.68801 2006 4 4 53829 0.0829 0.2917 -0.68813 2006 4 5 53830 0.0820 0.2915 -0.68821 2006 4 6 53831 0.0812 0.2913 -0.68832 2006 4 7 53832 0.0803 0.2911 -0.68851 2006 4 8 53833 0.0795 0.2909 -0.68884 2006 4 9 53834 0.0786 0.2908 -0.68931 2006 4 10 53835 0.0777 0.2906 -0.68995 2006 4 11 53836 0.0769 0.2905 -0.69074 2006 4 12 53837 0.0760 0.2904 -0.69161 2006 4 13 53838 0.0752 0.2902 -0.69247 2006 4 14 53839 0.0743 0.2901 -0.69324 2006 4 15 53840 0.0735 0.2900 -0.69394 2006 4 16 53841 0.0726 0.2899 -0.69457 2006 4 17 53842 0.0718 0.2898 -0.69497 2006 4 18 53843 0.0710 0.2897 -0.69523 2006 4 19 53844 0.0701 0.2896 -0.69532 2006 4 20 53845 0.0693 0.2895 -0.69540 2006 4 21 53846 0.0684 0.2895 -0.69562 2006 4 22 53847 0.0676 0.2894 -0.69615 2006 4 23 53848 0.0668 0.2893 -0.69699 2006 4 24 53849 0.0660 0.2893 -0.69812 2006 4 25 53850 0.0651 0.2892 -0.69950 2006 4 26 53851 0.0643 0.2892 -0.70094 2006 4 27 53852 0.0635 0.2892 -0.70226 2006 4 28 53853 0.0627 0.2892 -0.70337 2006 4 29 53854 0.0619 0.2891 -0.70410 2006 4 30 53855 0.0611 0.2891 -0.70453 2006 5 1 53856 0.0603 0.2891 -0.70473 2006 5 2 53857 0.0595 0.2891 -0.70485 2006 5 3 53858 0.0587 0.2891 -0.70502 2006 5 4 53859 0.0579 0.2891 -0.70527 2006 5 5 53860 0.0571 0.2891 -0.70563 2006 5 6 53861 0.0564 0.2892 -0.70608 2006 5 7 53862 0.0556 0.2892 -0.70659 2006 5 8 53863 0.0548 0.2892 -0.70719 2006 5 9 53864 0.0541 0.2893 -0.70781 2006 5 10 53865 0.0533 0.2893 -0.70848 2006 5 11 53866 0.0526 0.2893 -0.70906 2006 5 12 53867 0.0518 0.2894 -0.70950 2006 5 13 53868 0.0511 0.2895 -0.70974 2006 5 14 53869 0.0504 0.2895 -0.70977 2006 5 15 53870 0.0496 0.2896 -0.70953 2006 5 16 53871 0.0489 0.2897 -0.70913 2006 5 17 53872 0.0482 0.2897 -0.70864 2006 5 18 53873 0.0475 0.2898 -0.70819 2006 5 19 53874 0.0468 0.2899 -0.70796 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) 53494 -52.21 .15 -5.41 .34 53495 -52.44 .15 -5.22 .34 53496 -52.72 .15 -5.01 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53494 -0.116 0.060 -0.189 0.340 53495 -0.131 0.060 -0.175 0.340 53496 -0.148 0.060 -0.163 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 **************************************************************************