********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 17 February 2005 Vol. XVIII No. 007 ______________________________________________________________________ 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 = -0.5 seconds beginning 29 April 2004 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 2 11 53412 .06406 .00007 .20361 .00007 -.527453 .000011 5 2 12 53413 .06152 .00007 .20316 .00006 -.529015 .000011 5 2 13 53414 .05926 .00007 .20294 .00005 -.530525 .000013 5 2 14 53415 .05723 .00006 .20305 .00004 -.531852 .000015 5 2 15 53416 .05475 .00005 .20316 .00004 -.532926 .000015 5 2 16 53417 .05177 .00005 .20301 .00004 -.533717 .000014 5 2 17 53418 .04848 .00005 .20287 .00003 -.534260 .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 = .0417 - .0599 cos A - .0131 sin A + .0632 cos C - .1327 sin C y = .3475 - .0115 cos A + .0530 sin A - .1327 cos C - .0632 sin C UT1-UTC = -.5471 - .00032 (MJD - 53423) - (UT2-UT1) where A = 2*pi*(MJD-53418)/365.25 and C = 2*pi*(MJD-53418)/435. TAI-UTC(MJD 53419) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53418)**0.80 S t = 0.00025 (MJD-53418)**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 2 18 53419 0.0453 0.2028 -0.53466 2005 2 19 53420 0.0423 0.2029 -0.53505 2005 2 20 53421 0.0394 0.2030 -0.53555 2005 2 21 53422 0.0365 0.2031 -0.53624 2005 2 22 53423 0.0338 0.2033 -0.53708 2005 2 23 53424 0.0312 0.2035 -0.53810 2005 2 24 53425 0.0287 0.2037 -0.53923 2005 2 25 53426 0.0262 0.2040 -0.54045 2005 2 26 53427 0.0238 0.2043 -0.54180 2005 2 27 53428 0.0214 0.2046 -0.54324 2005 2 28 53429 0.0192 0.2049 -0.54468 2005 3 1 53430 0.0169 0.2053 -0.54599 2005 3 2 53431 0.0148 0.2057 -0.54710 2005 3 3 53432 0.0127 0.2062 -0.54798 2005 3 4 53433 0.0106 0.2066 -0.54862 2005 3 5 53434 0.0085 0.2071 -0.54909 2005 3 6 53435 0.0065 0.2076 -0.54952 2005 3 7 53436 0.0046 0.2081 -0.55007 2005 3 8 53437 0.0026 0.2087 -0.55087 2005 3 9 53438 0.0007 0.2093 -0.55199 2005 3 10 53439 -0.0011 0.2099 -0.55340 2005 3 11 53440 -0.0030 0.2106 -0.55498 2005 3 12 53441 -0.0048 0.2112 -0.55659 2005 3 13 53442 -0.0066 0.2119 -0.55808 2005 3 14 53443 -0.0084 0.2127 -0.55934 2005 3 15 53444 -0.0101 0.2134 -0.56034 2005 3 16 53445 -0.0119 0.2142 -0.56110 2005 3 17 53446 -0.0136 0.2150 -0.56168 2005 3 18 53447 -0.0153 0.2158 -0.56213 2005 3 19 53448 -0.0170 0.2166 -0.56253 2005 3 20 53449 -0.0186 0.2175 -0.56298 2005 3 21 53450 -0.0203 0.2184 -0.56353 2005 3 22 53451 -0.0219 0.2193 -0.56424 2005 3 23 53452 -0.0235 0.2203 -0.56515 2005 3 24 53453 -0.0251 0.2212 -0.56625 2005 3 25 53454 -0.0267 0.2222 -0.56753 2005 3 26 53455 -0.0282 0.2232 -0.56892 2005 3 27 53456 -0.0298 0.2243 -0.57033 2005 3 28 53457 -0.0313 0.2253 -0.57165 2005 3 29 53458 -0.0328 0.2264 -0.57281 2005 3 30 53459 -0.0343 0.2275 -0.57374 2005 3 31 53460 -0.0358 0.2286 -0.57445 2005 4 1 53461 -0.0372 0.2298 -0.57501 2005 4 2 53462 -0.0387 0.2309 -0.57551 2005 4 3 53463 -0.0401 0.2321 -0.57608 2005 4 4 53464 -0.0415 0.2333 -0.57686 2005 4 5 53465 -0.0429 0.2346 -0.57790 2005 4 6 53466 -0.0443 0.2358 -0.57921 2005 4 7 53467 -0.0456 0.2371 -0.58071 2005 4 8 53468 -0.0470 0.2384 -0.58228 2005 4 9 53469 -0.0483 0.2397 -0.58376 2005 4 10 53470 -0.0496 0.2410 -0.58505 2005 4 11 53471 -0.0509 0.2423 -0.58607 2005 4 12 53472 -0.0521 0.2437 -0.58682 2005 4 13 53473 -0.0534 0.2451 -0.58734 2005 4 14 53474 -0.0546 0.2465 -0.58771 2005 4 15 53475 -0.0558 0.2479 -0.58800 2005 4 16 53476 -0.0570 0.2493 -0.58829 2005 4 17 53477 -0.0582 0.2508 -0.58867 2005 4 18 53478 -0.0593 0.2522 -0.58917 2005 4 19 53479 -0.0604 0.2537 -0.58985 2005 4 20 53480 -0.0615 0.2552 -0.59072 2005 4 21 53481 -0.0626 0.2567 -0.59175 2005 4 22 53482 -0.0636 0.2583 -0.59291 2005 4 23 53483 -0.0647 0.2598 -0.59410 2005 4 24 53484 -0.0657 0.2613 -0.59524 2005 4 25 53485 -0.0667 0.2629 -0.59620 2005 4 26 53486 -0.0676 0.2645 -0.59693 2005 4 27 53487 -0.0686 0.2661 -0.59740 2005 4 28 53488 -0.0695 0.2677 -0.59767 2005 4 29 53489 -0.0704 0.2693 -0.59783 2005 4 30 53490 -0.0712 0.2710 -0.59803 2005 5 1 53491 -0.0721 0.2726 -0.59838 2005 5 2 53492 -0.0729 0.2743 -0.59897 2005 5 3 53493 -0.0736 0.2759 -0.59980 2005 5 4 53494 -0.0744 0.2776 -0.60082 2005 5 5 53495 -0.0751 0.2793 -0.60193 2005 5 6 53496 -0.0758 0.2810 -0.60299 2005 5 7 53497 -0.0765 0.2827 -0.60389 2005 5 8 53498 -0.0772 0.2844 -0.60454 2005 5 9 53499 -0.0778 0.2862 -0.60491 2005 5 10 53500 -0.0784 0.2879 -0.60503 2005 5 11 53501 -0.0790 0.2897 -0.60494 2005 5 12 53502 -0.0795 0.2914 -0.60474 2005 5 13 53503 -0.0800 0.2932 -0.60451 2005 5 14 53504 -0.0805 0.2950 -0.60432 2005 5 15 53505 -0.0810 0.2967 -0.60424 2005 5 16 53506 -0.0814 0.2985 -0.60432 2005 5 17 53507 -0.0818 0.3003 -0.60456 2005 5 18 53508 -0.0822 0.3021 -0.60496 2005 5 19 53509 -0.0825 0.3039 -0.60550 2005 5 20 53510 -0.0828 0.3057 -0.60612 2005 5 21 53511 -0.0831 0.3075 -0.60673 2005 5 22 53512 -0.0834 0.3094 -0.60723 2005 5 23 53513 -0.0836 0.3112 -0.60752 2005 5 24 53514 -0.0838 0.3130 -0.60757 2005 5 25 53515 -0.0840 0.3148 -0.60738 2005 5 26 53516 -0.0841 0.3167 -0.60706 2005 5 27 53517 -0.0842 0.3185 -0.60674 2005 5 28 53518 -0.0843 0.3203 -0.60655 2005 5 29 53519 -0.0844 0.3222 -0.60658 2005 5 30 53520 -0.0844 0.3240 -0.60686 2005 5 31 53521 -0.0844 0.3259 -0.60733 2005 6 1 53522 -0.0844 0.3277 -0.60790 2005 6 2 53523 -0.0843 0.3295 -0.60844 2005 6 3 53524 -0.0842 0.3314 -0.60887 2005 6 4 53525 -0.0841 0.3332 -0.60909 2005 6 5 53526 -0.0840 0.3351 -0.60904 2005 6 6 53527 -0.0838 0.3369 -0.60874 2005 6 7 53528 -0.0833 0.3388 -0.60823 2005 6 8 53529 -0.0831 0.3406 -0.60758 2005 6 9 53530 -0.0829 0.3424 -0.60687 2005 6 10 53531 -0.0826 0.3443 -0.60619 2005 6 11 53532 -0.0823 0.3461 -0.60560 2005 6 12 53533 -0.0820 0.3479 -0.60515 2005 6 13 53534 -0.0816 0.3497 -0.60487 2005 6 14 53535 -0.0812 0.3516 -0.60474 2005 6 15 53536 -0.0808 0.3534 -0.60476 2005 6 16 53537 -0.0804 0.3552 -0.60487 2005 6 17 53538 -0.0799 0.3570 -0.60500 2005 6 18 53539 -0.0794 0.3588 -0.60506 2005 6 19 53540 -0.0789 0.3606 -0.60497 2005 6 20 53541 -0.0783 0.3624 -0.60465 2005 6 21 53542 -0.0777 0.3641 -0.60409 2005 6 22 53543 -0.0771 0.3659 -0.60336 2005 6 23 53544 -0.0765 0.3677 -0.60258 2005 6 24 53545 -0.0758 0.3694 -0.60189 2005 6 25 53546 -0.0752 0.3712 -0.60143 2005 6 26 53547 -0.0745 0.3729 -0.60124 2005 6 27 53548 -0.0737 0.3747 -0.60128 2005 6 28 53549 -0.0730 0.3764 -0.60143 2005 6 29 53550 -0.0722 0.3781 -0.60158 2005 6 30 53551 -0.0714 0.3798 -0.60159 2005 7 1 53552 -0.0706 0.3815 -0.60138 2005 7 2 53553 -0.0697 0.3832 -0.60091 2005 7 3 53554 -0.0688 0.3849 -0.60020 2005 7 4 53555 -0.0679 0.3865 -0.59928 2005 7 5 53556 -0.0670 0.3882 -0.59822 2005 7 6 53557 -0.0661 0.3898 -0.59709 2005 7 7 53558 -0.0651 0.3915 -0.59598 2005 7 8 53559 -0.0641 0.3931 -0.59496 2005 7 9 53560 -0.0631 0.3947 -0.59408 2005 7 10 53561 -0.0621 0.3963 -0.59337 2005 7 11 53562 -0.0610 0.3978 -0.59283 2005 7 12 53563 -0.0600 0.3994 -0.59244 2005 7 13 53564 -0.0589 0.4009 -0.59216 2005 7 14 53565 -0.0578 0.4025 -0.59192 2005 7 15 53566 -0.0566 0.4040 -0.59164 2005 7 16 53567 -0.0555 0.4055 -0.59126 2005 7 17 53568 -0.0543 0.4070 -0.59070 2005 7 18 53569 -0.0531 0.4085 -0.58993 2005 7 19 53570 -0.0519 0.4099 -0.58898 2005 7 20 53571 -0.0507 0.4114 -0.58795 2005 7 21 53572 -0.0495 0.4128 -0.58697 2005 7 22 53573 -0.0482 0.4142 -0.58621 2005 7 23 53574 -0.0470 0.4156 -0.58575 2005 7 24 53575 -0.0457 0.4170 -0.58559 2005 7 25 53576 -0.0444 0.4183 -0.58563 2005 7 26 53577 -0.0431 0.4197 -0.58573 2005 7 27 53578 -0.0418 0.4210 -0.58572 2005 7 28 53579 -0.0404 0.4223 -0.58550 2005 7 29 53580 -0.0391 0.4236 -0.58502 2005 7 30 53581 -0.0377 0.4248 -0.58428 2005 7 31 53582 -0.0363 0.4261 -0.58333 2005 8 1 53583 -0.0349 0.4273 -0.58224 2005 8 2 53584 -0.0335 0.4285 -0.58109 2005 8 3 53585 -0.0321 0.4297 -0.57995 2005 8 4 53586 -0.0307 0.4309 -0.57890 2005 8 5 53587 -0.0292 0.4320 -0.57799 2005 8 6 53588 -0.0278 0.4331 -0.57726 2005 8 7 53589 -0.0263 0.4342 -0.57672 2005 8 8 53590 -0.0249 0.4353 -0.57635 2005 8 9 53591 -0.0234 0.4364 -0.57609 2005 8 10 53592 -0.0219 0.4374 -0.57589 2005 8 11 53593 -0.0204 0.4385 -0.57567 2005 8 12 53594 -0.0189 0.4395 -0.57536 2005 8 13 53595 -0.0174 0.4405 -0.57490 2005 8 14 53596 -0.0159 0.4414 -0.57423 2005 8 15 53597 -0.0144 0.4424 -0.57338 2005 8 16 53598 -0.0128 0.4433 -0.57241 2005 8 17 53599 -0.0113 0.4442 -0.57143 2005 8 18 53600 -0.0097 0.4450 -0.57060 2005 8 19 53601 -0.0082 0.4459 -0.57003 2005 8 20 53602 -0.0066 0.4467 -0.56978 2005 8 21 53603 -0.0051 0.4475 -0.56979 2005 8 22 53604 -0.0035 0.4483 -0.56993 2005 8 23 53605 -0.0020 0.4491 -0.57003 2005 8 24 53606 -0.0004 0.4498 -0.56996 2005 8 25 53607 0.0012 0.4505 -0.56964 2005 8 26 53608 0.0028 0.4512 -0.56907 2005 8 27 53609 0.0043 0.4519 -0.56830 2005 8 28 53610 0.0058 0.4525 -0.56742 2005 8 29 53611 0.0074 0.4531 -0.56651 2005 8 30 53612 0.0089 0.4537 -0.56566 2005 8 31 53613 0.0104 0.4543 -0.56495 2005 9 1 53614 0.0120 0.4548 -0.56445 2005 9 2 53615 0.0135 0.4553 -0.56419 2005 9 3 53616 0.0151 0.4558 -0.56419 2005 9 4 53617 0.0166 0.4563 -0.56441 2005 9 5 53618 0.0182 0.4567 -0.56481 2005 9 6 53619 0.0197 0.4572 -0.56530 2005 9 7 53620 0.0212 0.4576 -0.56580 2005 9 8 53621 0.0228 0.4579 -0.56623 2005 9 9 53622 0.0243 0.4583 -0.56651 2005 9 10 53623 0.0258 0.4586 -0.56661 2005 9 11 53624 0.0274 0.4589 -0.56652 2005 9 12 53625 0.0289 0.4592 -0.56629 2005 9 13 53626 0.0304 0.4595 -0.56602 2005 9 14 53627 0.0319 0.4597 -0.56586 2005 9 15 53628 0.0335 0.4599 -0.56593 2005 9 16 53629 0.0350 0.4601 -0.56632 2005 9 17 53630 0.0365 0.4603 -0.56704 2005 9 18 53631 0.0380 0.4604 -0.56797 2005 9 19 53632 0.0395 0.4606 -0.56898 2005 9 20 53633 0.0410 0.4606 -0.56987 2005 9 21 53634 0.0425 0.4607 -0.57054 2005 9 22 53635 0.0440 0.4608 -0.57093 2005 9 23 53636 0.0455 0.4608 -0.57104 2005 9 24 53637 0.0469 0.4608 -0.57094 2005 9 25 53638 0.0484 0.4608 -0.57074 2005 9 26 53639 0.0499 0.4607 -0.57050 2005 9 27 53640 0.0513 0.4607 -0.57030 2005 9 28 53641 0.0528 0.4606 -0.57022 2005 9 29 53642 0.0542 0.4605 -0.57034 2005 9 30 53643 0.0557 0.4604 -0.57065 2005 10 1 53644 0.0571 0.4602 -0.57111 2005 10 2 53645 0.0585 0.4600 -0.57171 2005 10 3 53646 0.0600 0.4598 -0.57238 2005 10 4 53647 0.0614 0.4596 -0.57304 2005 10 5 53648 0.0628 0.4594 -0.57368 2005 10 6 53649 0.0642 0.4591 -0.57415 2005 10 7 53650 0.0656 0.4588 -0.57441 2005 10 8 53651 0.0669 0.4585 -0.57445 2005 10 9 53652 0.0683 0.4582 -0.57434 2005 10 10 53653 0.0697 0.4579 -0.57416 2005 10 11 53654 0.0710 0.4575 -0.57408 2005 10 12 53655 0.0724 0.4571 -0.57419 2005 10 13 53656 0.0737 0.4567 -0.57458 2005 10 14 53657 0.0750 0.4563 -0.57530 2005 10 15 53658 0.0763 0.4558 -0.57635 2005 10 16 53659 0.0777 0.4554 -0.57765 2005 10 17 53660 0.0790 0.4549 -0.57892 2005 10 18 53661 0.0802 0.4544 -0.58003 2005 10 19 53662 0.0815 0.4539 -0.58080 2005 10 20 53663 0.0828 0.4533 -0.58125 2005 10 21 53664 0.0840 0.4528 -0.58146 2005 10 22 53665 0.0853 0.4522 -0.58157 2005 10 23 53666 0.0865 0.4516 -0.58161 2005 10 24 53667 0.0878 0.4510 -0.58166 2005 10 25 53668 0.0890 0.4504 -0.58186 2005 10 26 53669 0.0902 0.4497 -0.58224 2005 10 27 53670 0.0914 0.4490 -0.58282 2005 10 28 53671 0.0926 0.4484 -0.58364 2005 10 29 53672 0.0937 0.4477 -0.58458 2005 10 30 53673 0.0949 0.4469 -0.58566 2005 10 31 53674 0.0961 0.4462 -0.58677 2005 11 1 53675 0.0972 0.4455 -0.58787 2005 11 2 53676 0.0983 0.4447 -0.58890 2005 11 3 53677 0.0994 0.4439 -0.58976 2005 11 4 53678 0.1005 0.4431 -0.59036 2005 11 5 53679 0.1016 0.4423 -0.59071 2005 11 6 53680 0.1027 0.4415 -0.59088 2005 11 7 53681 0.1038 0.4406 -0.59102 2005 11 8 53682 0.1049 0.4398 -0.59127 2005 11 9 53683 0.1059 0.4389 -0.59179 2005 11 10 53684 0.1069 0.4380 -0.59257 2005 11 11 53685 0.1080 0.4371 -0.59359 2005 11 12 53686 0.1090 0.4362 -0.59476 2005 11 13 53687 0.1100 0.4353 -0.59595 2005 11 14 53688 0.1110 0.4344 -0.59694 2005 11 15 53689 0.1119 0.4334 -0.59768 2005 11 16 53690 0.1129 0.4324 -0.59805 2005 11 17 53691 0.1139 0.4315 -0.59812 2005 11 18 53692 0.1148 0.4305 -0.59799 2005 11 19 53693 0.1157 0.4295 -0.59779 2005 11 20 53694 0.1166 0.4285 -0.59767 2005 11 21 53695 0.1175 0.4274 -0.59763 2005 11 22 53696 0.1184 0.4264 -0.59777 2005 11 23 53697 0.1193 0.4254 -0.59817 2005 11 24 53698 0.1202 0.4243 -0.59875 2005 11 25 53699 0.1210 0.4232 -0.59959 2005 11 26 53700 0.1218 0.4222 -0.60060 2005 11 27 53701 0.1227 0.4211 -0.60167 2005 11 28 53702 0.1235 0.4200 -0.60279 2005 11 29 53703 0.1243 0.4189 -0.60380 2005 11 30 53704 0.1251 0.4178 -0.60464 2005 12 1 53705 0.1258 0.4167 -0.60522 2005 12 2 53706 0.1266 0.4155 -0.60555 2005 12 3 53707 0.1273 0.4144 -0.60568 2005 12 4 53708 0.1281 0.4133 -0.60572 2005 12 5 53709 0.1288 0.4121 -0.60585 2005 12 6 53710 0.1295 0.4109 -0.60619 2005 12 7 53711 0.1302 0.4098 -0.60683 2005 12 8 53712 0.1308 0.4086 -0.60773 2005 12 9 53713 0.1315 0.4074 -0.60879 2005 12 10 53714 0.1321 0.4062 -0.60991 2005 12 11 53715 0.1328 0.4050 -0.61090 2005 12 12 53716 0.1334 0.4038 -0.61162 2005 12 13 53717 0.1340 0.4026 -0.61198 2005 12 14 53718 0.1346 0.4014 -0.61197 2005 12 15 53719 0.1352 0.4002 -0.61166 2005 12 16 53720 0.1357 0.3990 -0.61118 2005 12 17 53721 0.1363 0.3977 -0.61060 2005 12 18 53722 0.1368 0.3965 -0.61001 2005 12 19 53723 0.1373 0.3953 -0.60951 2005 12 20 53724 0.1378 0.3940 -0.60913 2005 12 21 53725 0.1383 0.3928 -0.60889 2005 12 22 53726 0.1388 0.3915 -0.60879 2005 12 23 53727 0.1393 0.3903 -0.60883 2005 12 24 53728 0.1397 0.3890 -0.60895 2005 12 25 53729 0.1401 0.3878 -0.60917 2005 12 26 53730 0.1405 0.3865 -0.60935 2005 12 27 53731 0.1409 0.3852 -0.60943 2005 12 28 53732 0.1413 0.3840 -0.60937 2005 12 29 53733 0.1417 0.3827 -0.60911 2005 12 30 53734 0.1421 0.3814 -0.60869 2005 12 31 53735 0.1424 0.3801 -0.60823 2006 1 1 53736 0.1427 0.3788 -0.60787 2006 1 2 53737 0.1430 0.3776 -0.60774 2006 1 3 53738 0.1433 0.3763 -0.60789 2006 1 4 53739 0.1436 0.3750 -0.60830 2006 1 5 53740 0.1439 0.3737 -0.60893 2006 1 6 53741 0.1441 0.3724 -0.60972 2006 1 7 53742 0.1443 0.3711 -0.61047 2006 1 8 53743 0.1446 0.3699 -0.61098 2006 1 9 53744 0.1448 0.3686 -0.61128 2006 1 10 53745 0.1449 0.3673 -0.61130 2006 1 11 53746 0.1451 0.3660 -0.61109 2006 1 12 53747 0.1453 0.3647 -0.61072 2006 1 13 53748 0.1454 0.3634 -0.61026 2006 1 14 53749 0.1455 0.3621 -0.60979 2006 1 15 53750 0.1456 0.3609 -0.60947 2006 1 16 53751 0.1457 0.3596 -0.60932 2006 1 17 53752 0.1458 0.3583 -0.60935 2006 1 18 53753 0.1458 0.3570 -0.60957 2006 1 19 53754 0.1459 0.3557 -0.60994 2006 1 20 53755 0.1459 0.3544 -0.61044 2006 1 21 53756 0.1459 0.3532 -0.61102 2006 1 22 53757 0.1459 0.3519 -0.61157 2006 1 23 53758 0.1459 0.3506 -0.61198 2006 1 24 53759 0.1458 0.3493 -0.61216 2006 1 25 53760 0.1458 0.3481 -0.61205 2006 1 26 53761 0.1457 0.3468 -0.61169 2006 1 27 53762 0.1456 0.3455 -0.61119 2006 1 28 53763 0.1455 0.3443 -0.61060 2006 1 29 53764 0.1454 0.3430 -0.61011 2006 1 30 53765 0.1453 0.3418 -0.60988 2006 1 31 53766 0.1451 0.3405 -0.60998 2006 2 1 53767 0.1449 0.3393 -0.61038 2006 2 2 53768 0.1448 0.3380 -0.61088 2006 2 3 53769 0.1445 0.3368 -0.61134 2006 2 4 53770 0.1443 0.3355 -0.61159 2006 2 5 53771 0.1441 0.3343 -0.61154 2006 2 6 53772 0.1438 0.3331 -0.61122 2006 2 7 53773 0.1436 0.3318 -0.61067 2006 2 8 53774 0.1433 0.3306 -0.60997 2006 2 9 53775 0.1430 0.3294 -0.60920 2006 2 10 53776 0.1427 0.3282 -0.60842 2006 2 11 53777 0.1424 0.3270 -0.60775 2006 2 12 53778 0.1420 0.3258 -0.60727 2006 2 13 53779 0.1416 0.3246 -0.60698 2006 2 14 53780 0.1413 0.3234 -0.60692 2006 2 15 53781 0.1409 0.3222 -0.60706 2006 2 16 53782 0.1405 0.3210 -0.60738 2006 2 17 53783 0.1400 0.3199 -0.60787 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) 53399 -54.56 .35 -1.38 .34 53400 -54.57 .21 -1.37 .11 53401 -54.75 .21 -1.42 .11 53402 -54.98 .16 -1.57 .12 53403 -55.18 .18 -1.72 .34 53404 -55.38 .18 -1.76 .34 53405 -55.75 .18 -1.74 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53399 -0.036 0.139 -0.373 0.340 53400 -0.065 0.084 -0.398 0.110 53401 -0.093 0.084 -0.436 0.110 53402 -0.096 0.064 -0.467 0.120 53403 -0.085 0.072 -0.463 0.340 53404 -0.073 0.072 -0.452 0.340 53405 -0.077 0.072 -0.460 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 **************************************************************************