********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 27 January 2005 Vol. XVIII No. 004 ______________________________________________________________________ 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 31 December 2004. * * 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 1 21 53391 .11927 .00007 .21409 .00004 -.517173 .000012 5 1 22 53392 .11706 .00008 .21320 .00004 -.517360 .000012 5 1 23 53393 .11469 .00008 .21232 .00004 -.517462 .000012 5 1 24 53394 .11233 .00007 .21141 .00004 -.517519 .000008 5 1 25 53395 .10998 .00007 .21049 .00004 -.517563 .000007 5 1 26 53396 .10764 .00007 .20964 .00004 -.517680 .000007 5 1 27 53397 .10545 .00007 .20908 .00004 -.517986 .000006 _______________________________________________________________________ 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 = .0520 - .0509 cos A - .0279 sin A + .1020 cos C - .1119 sin C y = .3467 - .0252 cos A + .0453 sin A - .1119 cos C - .1020 sin C UT1-UTC = -.5323 - .00031 (MJD - 53402) - (UT2-UT1) where A = 2*pi*(MJD-53397)/365.25 and C = 2*pi*(MJD-53397)/435. TAI-UTC(MJD 53398) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53397)**0.80 S t = 0.00025 (MJD-53397)**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 1 28 53398 0.1033 0.2086 -0.51853 2005 1 29 53399 0.1012 0.2081 -0.51923 2005 1 30 53400 0.0991 0.2075 -0.52001 2005 1 31 53401 0.0971 0.2070 -0.52081 2005 2 1 53402 0.0951 0.2065 -0.52158 2005 2 2 53403 0.0931 0.2060 -0.52225 2005 2 3 53404 0.0910 0.2055 -0.52281 2005 2 4 53405 0.0890 0.2051 -0.52320 2005 2 5 53406 0.0870 0.2047 -0.52342 2005 2 6 53407 0.0850 0.2043 -0.52362 2005 2 7 53408 0.0830 0.2039 -0.52392 2005 2 8 53409 0.0809 0.2036 -0.52445 2005 2 9 53410 0.0789 0.2033 -0.52529 2005 2 10 53411 0.0768 0.2031 -0.52644 2005 2 11 53412 0.0748 0.2028 -0.52781 2005 2 12 53413 0.0728 0.2026 -0.52925 2005 2 13 53414 0.0707 0.2025 -0.53060 2005 2 14 53415 0.0686 0.2023 -0.53175 2005 2 15 53416 0.0666 0.2022 -0.53264 2005 2 16 53417 0.0645 0.2021 -0.53327 2005 2 17 53418 0.0625 0.2021 -0.53367 2005 2 18 53419 0.0604 0.2021 -0.53391 2005 2 19 53420 0.0583 0.2021 -0.53406 2005 2 20 53421 0.0563 0.2021 -0.53420 2005 2 21 53422 0.0542 0.2022 -0.53441 2005 2 22 53423 0.0521 0.2023 -0.53476 2005 2 23 53424 0.0501 0.2024 -0.53530 2005 2 24 53425 0.0480 0.2026 -0.53605 2005 2 25 53426 0.0459 0.2028 -0.53700 2005 2 26 53427 0.0439 0.2030 -0.53811 2005 2 27 53428 0.0418 0.2033 -0.53930 2005 2 28 53429 0.0398 0.2035 -0.54049 2005 3 1 53430 0.0377 0.2039 -0.54158 2005 3 2 53431 0.0357 0.2042 -0.54251 2005 3 3 53432 0.0336 0.2046 -0.54322 2005 3 4 53433 0.0316 0.2050 -0.54374 2005 3 5 53434 0.0296 0.2054 -0.54412 2005 3 6 53435 0.0275 0.2058 -0.54450 2005 3 7 53436 0.0255 0.2063 -0.54502 2005 3 8 53437 0.0235 0.2068 -0.54580 2005 3 9 53438 0.0215 0.2073 -0.54688 2005 3 10 53439 0.0195 0.2079 -0.54823 2005 3 11 53440 0.0175 0.2085 -0.54974 2005 3 12 53441 0.0155 0.2091 -0.55125 2005 3 13 53442 0.0136 0.2097 -0.55262 2005 3 14 53443 0.0116 0.2104 -0.55377 2005 3 15 53444 0.0097 0.2111 -0.55465 2005 3 16 53445 0.0077 0.2118 -0.55528 2005 3 17 53446 0.0058 0.2125 -0.55573 2005 3 18 53447 0.0039 0.2133 -0.55605 2005 3 19 53448 0.0020 0.2141 -0.55633 2005 3 20 53449 0.0001 0.2149 -0.55665 2005 3 21 53450 -0.0018 0.2157 -0.55707 2005 3 22 53451 -0.0037 0.2166 -0.55766 2005 3 23 53452 -0.0055 0.2175 -0.55843 2005 3 24 53453 -0.0074 0.2184 -0.55940 2005 3 25 53454 -0.0092 0.2193 -0.56053 2005 3 26 53455 -0.0110 0.2203 -0.56177 2005 3 27 53456 -0.0128 0.2213 -0.56301 2005 3 28 53457 -0.0146 0.2223 -0.56418 2005 3 29 53458 -0.0164 0.2233 -0.56517 2005 3 30 53459 -0.0181 0.2243 -0.56594 2005 3 31 53460 -0.0199 0.2254 -0.56648 2005 4 1 53461 -0.0216 0.2265 -0.56687 2005 4 2 53462 -0.0233 0.2276 -0.56722 2005 4 3 53463 -0.0250 0.2288 -0.56764 2005 4 4 53464 -0.0267 0.2299 -0.56826 2005 4 5 53465 -0.0283 0.2311 -0.56916 2005 4 6 53466 -0.0299 0.2323 -0.57032 2005 4 7 53467 -0.0315 0.2335 -0.57167 2005 4 8 53468 -0.0331 0.2348 -0.57308 2005 4 9 53469 -0.0347 0.2360 -0.57440 2005 4 10 53470 -0.0363 0.2373 -0.57553 2005 4 11 53471 -0.0378 0.2386 -0.57639 2005 4 12 53472 -0.0393 0.2399 -0.57698 2005 4 13 53473 -0.0408 0.2413 -0.57734 2005 4 14 53474 -0.0422 0.2426 -0.57754 2005 4 15 53475 -0.0437 0.2440 -0.57766 2005 4 16 53476 -0.0451 0.2454 -0.57777 2005 4 17 53477 -0.0465 0.2468 -0.57797 2005 4 18 53478 -0.0479 0.2483 -0.57831 2005 4 19 53479 -0.0492 0.2497 -0.57884 2005 4 20 53480 -0.0506 0.2512 -0.57956 2005 4 21 53481 -0.0519 0.2527 -0.58046 2005 4 22 53482 -0.0531 0.2542 -0.58149 2005 4 23 53483 -0.0544 0.2557 -0.58258 2005 4 24 53484 -0.0556 0.2572 -0.58363 2005 4 25 53485 -0.0568 0.2587 -0.58453 2005 4 26 53486 -0.0580 0.2603 -0.58521 2005 4 27 53487 -0.0591 0.2619 -0.58565 2005 4 28 53488 -0.0603 0.2635 -0.58588 2005 4 29 53489 -0.0614 0.2651 -0.58603 2005 4 30 53490 -0.0624 0.2667 -0.58622 2005 5 1 53491 -0.0635 0.2683 -0.58656 2005 5 2 53492 -0.0645 0.2700 -0.58715 2005 5 3 53493 -0.0655 0.2716 -0.58798 2005 5 4 53494 -0.0664 0.2733 -0.58901 2005 5 5 53495 -0.0673 0.2750 -0.59012 2005 5 6 53496 -0.0682 0.2766 -0.59120 2005 5 7 53497 -0.0691 0.2784 -0.59212 2005 5 8 53498 -0.0700 0.2801 -0.59281 2005 5 9 53499 -0.0708 0.2818 -0.59322 2005 5 10 53500 -0.0716 0.2835 -0.59338 2005 5 11 53501 -0.0723 0.2853 -0.59334 2005 5 12 53502 -0.0731 0.2870 -0.59320 2005 5 13 53503 -0.0737 0.2888 -0.59303 2005 5 14 53504 -0.0744 0.2905 -0.59290 2005 5 15 53505 -0.0751 0.2923 -0.59289 2005 5 16 53506 -0.0757 0.2941 -0.59303 2005 5 17 53507 -0.0762 0.2959 -0.59335 2005 5 18 53508 -0.0768 0.2977 -0.59384 2005 5 19 53509 -0.0773 0.2995 -0.59446 2005 5 20 53510 -0.0778 0.3013 -0.59515 2005 5 21 53511 -0.0782 0.3032 -0.59584 2005 5 22 53512 -0.0787 0.3050 -0.59640 2005 5 23 53513 -0.0791 0.3068 -0.59676 2005 5 24 53514 -0.0794 0.3087 -0.59686 2005 5 25 53515 -0.0798 0.3105 -0.59673 2005 5 26 53516 -0.0801 0.3123 -0.59645 2005 5 27 53517 -0.0803 0.3142 -0.59615 2005 5 28 53518 -0.0806 0.3160 -0.59599 2005 5 29 53519 -0.0808 0.3179 -0.59604 2005 5 30 53520 -0.0810 0.3198 -0.59633 2005 5 31 53521 -0.0811 0.3216 -0.59680 2005 6 1 53522 -0.0812 0.3235 -0.59737 2005 6 2 53523 -0.0813 0.3253 -0.59790 2005 6 3 53524 -0.0814 0.3272 -0.59829 2005 6 4 53525 -0.0814 0.3291 -0.59846 2005 6 5 53526 -0.0814 0.3310 -0.59837 2005 6 6 53527 -0.0813 0.3328 -0.59802 2005 6 7 53528 -0.0813 0.3347 -0.59747 2005 6 8 53529 -0.0812 0.3366 -0.59678 2005 6 9 53530 -0.0811 0.3384 -0.59604 2005 6 10 53531 -0.0809 0.3403 -0.59532 2005 6 11 53532 -0.0807 0.3421 -0.59470 2005 6 12 53533 -0.0805 0.3440 -0.59422 2005 6 13 53534 -0.0803 0.3459 -0.59391 2005 6 14 53535 -0.0800 0.3477 -0.59376 2005 6 15 53536 -0.0797 0.3496 -0.59376 2005 6 16 53537 -0.0793 0.3514 -0.59384 2005 6 17 53538 -0.0790 0.3532 -0.59395 2005 6 18 53539 -0.0786 0.3551 -0.59400 2005 6 19 53540 -0.0782 0.3569 -0.59388 2005 6 20 53541 -0.0777 0.3587 -0.59355 2005 6 21 53542 -0.0772 0.3606 -0.59297 2005 6 22 53543 -0.0767 0.3624 -0.59222 2005 6 23 53544 -0.0762 0.3642 -0.59142 2005 6 24 53545 -0.0757 0.3660 -0.59071 2005 6 25 53546 -0.0751 0.3678 -0.59023 2005 6 26 53547 -0.0745 0.3696 -0.59001 2005 6 27 53548 -0.0738 0.3713 -0.59002 2005 6 28 53549 -0.0732 0.3731 -0.59015 2005 6 29 53550 -0.0725 0.3749 -0.59027 2005 6 30 53551 -0.0718 0.3766 -0.59025 2005 7 1 53552 -0.0710 0.3784 -0.59001 2005 7 2 53553 -0.0703 0.3801 -0.58952 2005 7 3 53554 -0.0695 0.3818 -0.58878 2005 7 4 53555 -0.0687 0.3835 -0.58783 2005 7 5 53556 -0.0678 0.3852 -0.58675 2005 7 6 53557 -0.0670 0.3869 -0.58560 2005 7 7 53558 -0.0661 0.3886 -0.58447 2005 7 8 53559 -0.0652 0.3902 -0.58342 2005 7 9 53560 -0.0643 0.3919 -0.58253 2005 7 10 53561 -0.0633 0.3935 -0.58180 2005 7 11 53562 -0.0623 0.3952 -0.58125 2005 7 12 53563 -0.0613 0.3968 -0.58085 2005 7 13 53564 -0.0603 0.3984 -0.58056 2005 7 14 53565 -0.0593 0.4000 -0.58030 2005 7 15 53566 -0.0582 0.4015 -0.58002 2005 7 16 53567 -0.0572 0.4031 -0.57963 2005 7 17 53568 -0.0561 0.4046 -0.57905 2005 7 18 53569 -0.0550 0.4062 -0.57826 2005 7 19 53570 -0.0538 0.4077 -0.57728 2005 7 20 53571 -0.0527 0.4092 -0.57622 2005 7 21 53572 -0.0515 0.4106 -0.57521 2005 7 22 53573 -0.0503 0.4121 -0.57440 2005 7 23 53574 -0.0491 0.4135 -0.57388 2005 7 24 53575 -0.0479 0.4150 -0.57364 2005 7 25 53576 -0.0467 0.4164 -0.57359 2005 7 26 53577 -0.0454 0.4178 -0.57358 2005 7 27 53578 -0.0442 0.4192 -0.57345 2005 7 28 53579 -0.0429 0.4205 -0.57308 2005 7 29 53580 -0.0416 0.4218 -0.57244 2005 7 30 53581 -0.0403 0.4232 -0.57152 2005 7 31 53582 -0.0390 0.4245 -0.57039 2005 8 1 53583 -0.0377 0.4258 -0.56912 2005 8 2 53584 -0.0363 0.4270 -0.56781 2005 8 3 53585 -0.0350 0.4283 -0.56656 2005 8 4 53586 -0.0336 0.4295 -0.56544 2005 8 5 53587 -0.0322 0.4307 -0.56453 2005 8 6 53588 -0.0308 0.4319 -0.56388 2005 8 7 53589 -0.0294 0.4330 -0.56347 2005 8 8 53590 -0.0280 0.4342 -0.56327 2005 8 9 53591 -0.0266 0.4353 -0.56324 2005 8 10 53592 -0.0251 0.4364 -0.56328 2005 8 11 53593 -0.0237 0.4375 -0.56331 2005 8 12 53594 -0.0222 0.4385 -0.56325 2005 8 13 53595 -0.0208 0.4395 -0.56302 2005 8 14 53596 -0.0193 0.4405 -0.56257 2005 8 15 53597 -0.0178 0.4415 -0.56194 2005 8 16 53598 -0.0163 0.4425 -0.56118 2005 8 17 53599 -0.0148 0.4434 -0.56042 2005 8 18 53600 -0.0133 0.4444 -0.55982 2005 8 19 53601 -0.0118 0.4453 -0.55950 2005 8 20 53602 -0.0103 0.4461 -0.55952 2005 8 21 53603 -0.0088 0.4470 -0.55981 2005 8 22 53604 -0.0073 0.4478 -0.56023 2005 8 23 53605 -0.0058 0.4486 -0.56061 2005 8 24 53606 -0.0043 0.4494 -0.56079 2005 8 25 53607 -0.0027 0.4502 -0.56068 2005 8 26 53608 -0.0012 0.4509 -0.56028 2005 8 27 53609 0.0003 0.4517 -0.55962 2005 8 28 53610 0.0019 0.4523 -0.55879 2005 8 29 53611 0.0034 0.4530 -0.55788 2005 8 30 53612 0.0049 0.4537 -0.55699 2005 8 31 53613 0.0065 0.4543 -0.55619 2005 9 1 53614 0.0080 0.4549 -0.55554 2005 9 2 53615 0.0096 0.4555 -0.55509 2005 9 3 53616 0.0111 0.4560 -0.55490 2005 9 4 53617 0.0126 0.4566 -0.55499 2005 9 5 53618 0.0142 0.4571 -0.55522 2005 9 6 53619 0.0157 0.4575 -0.55555 2005 9 7 53620 0.0172 0.4580 -0.55582 2005 9 8 53621 0.0188 0.4584 -0.55600 2005 9 9 53622 0.0203 0.4588 -0.55605 2005 9 10 53623 0.0218 0.4592 -0.55600 2005 9 11 53624 0.0234 0.4596 -0.55578 2005 9 12 53625 0.0249 0.4599 -0.55543 2005 9 13 53626 0.0264 0.4603 -0.55512 2005 9 14 53627 0.0279 0.4606 -0.55495 2005 9 15 53628 0.0295 0.4608 -0.55505 2005 9 16 53629 0.0310 0.4611 -0.55553 2005 9 17 53630 0.0325 0.4613 -0.55632 2005 9 18 53631 0.0340 0.4615 -0.55736 2005 9 19 53632 0.0355 0.4617 -0.55847 2005 9 20 53633 0.0370 0.4618 -0.55951 2005 9 21 53634 0.0385 0.4620 -0.56038 2005 9 22 53635 0.0400 0.4621 -0.56096 2005 9 23 53636 0.0415 0.4622 -0.56123 2005 9 24 53637 0.0429 0.4622 -0.56122 2005 9 25 53638 0.0444 0.4623 -0.56102 2005 9 26 53639 0.0459 0.4623 -0.56076 2005 9 27 53640 0.0473 0.4623 -0.56051 2005 9 28 53641 0.0488 0.4623 -0.56044 2005 9 29 53642 0.0502 0.4622 -0.56052 2005 9 30 53643 0.0517 0.4621 -0.56078 2005 10 1 53644 0.0531 0.4620 -0.56123 2005 10 2 53645 0.0546 0.4619 -0.56184 2005 10 3 53646 0.0560 0.4618 -0.56248 2005 10 4 53647 0.0574 0.4616 -0.56311 2005 10 5 53648 0.0588 0.4614 -0.56361 2005 10 6 53649 0.0602 0.4612 -0.56394 2005 10 7 53650 0.0616 0.4610 -0.56409 2005 10 8 53651 0.0630 0.4608 -0.56411 2005 10 9 53652 0.0644 0.4605 -0.56407 2005 10 10 53653 0.0657 0.4602 -0.56398 2005 10 11 53654 0.0671 0.4599 -0.56401 2005 10 12 53655 0.0685 0.4596 -0.56434 2005 10 13 53656 0.0698 0.4592 -0.56496 2005 10 14 53657 0.0711 0.4589 -0.56600 2005 10 15 53658 0.0725 0.4585 -0.56736 2005 10 16 53659 0.0738 0.4581 -0.56887 2005 10 17 53660 0.0751 0.4576 -0.57041 2005 10 18 53661 0.0764 0.4572 -0.57177 2005 10 19 53662 0.0777 0.4567 -0.57285 2005 10 20 53663 0.0790 0.4562 -0.57359 2005 10 21 53664 0.0803 0.4557 -0.57403 2005 10 22 53665 0.0815 0.4552 -0.57424 2005 10 23 53666 0.0828 0.4547 -0.57432 2005 10 24 53667 0.0840 0.4541 -0.57440 2005 10 25 53668 0.0853 0.4535 -0.57456 2005 10 26 53669 0.0865 0.4529 -0.57492 2005 10 27 53670 0.0877 0.4523 -0.57546 2005 10 28 53671 0.0890 0.4517 -0.57619 2005 10 29 53672 0.0902 0.4511 -0.57711 2005 10 30 53673 0.0914 0.4504 -0.57813 2005 10 31 53674 0.0925 0.4497 -0.57912 2005 11 1 53675 0.0937 0.4490 -0.57998 2005 11 2 53676 0.0949 0.4483 -0.58061 2005 11 3 53677 0.0960 0.4476 -0.58097 2005 11 4 53678 0.0972 0.4468 -0.58109 2005 11 5 53679 0.0983 0.4460 -0.58097 2005 11 6 53680 0.0995 0.4453 -0.58068 2005 11 7 53681 0.1006 0.4445 -0.58041 2005 11 8 53682 0.1017 0.4437 -0.58024 2005 11 9 53683 0.1028 0.4428 -0.58029 2005 11 10 53684 0.1039 0.4420 -0.58059 2005 11 11 53685 0.1049 0.4412 -0.58116 2005 11 12 53686 0.1060 0.4403 -0.58189 2005 11 13 53687 0.1071 0.4394 -0.58273 2005 11 14 53688 0.1081 0.4385 -0.58348 2005 11 15 53689 0.1091 0.4376 -0.58402 2005 11 16 53690 0.1102 0.4367 -0.58432 2005 11 17 53691 0.1112 0.4357 -0.58435 2005 11 18 53692 0.1122 0.4348 -0.58417 2005 11 19 53693 0.1132 0.4338 -0.58390 2005 11 20 53694 0.1142 0.4329 -0.58363 2005 11 21 53695 0.1151 0.4319 -0.58345 2005 11 22 53696 0.1161 0.4309 -0.58337 2005 11 23 53697 0.1170 0.4299 -0.58344 2005 11 24 53698 0.1180 0.4288 -0.58369 2005 11 25 53699 0.1189 0.4278 -0.58421 2005 11 26 53700 0.1198 0.4268 -0.58491 2005 11 27 53701 0.1207 0.4257 -0.58563 2005 11 28 53702 0.1216 0.4247 -0.58639 2005 11 29 53703 0.1225 0.4236 -0.58705 2005 11 30 53704 0.1234 0.4225 -0.58753 2005 12 1 53705 0.1242 0.4214 -0.58779 2005 12 2 53706 0.1251 0.4203 -0.58779 2005 12 3 53707 0.1259 0.4192 -0.58763 2005 12 4 53708 0.1267 0.4181 -0.58749 2005 12 5 53709 0.1276 0.4169 -0.58747 2005 12 6 53710 0.1284 0.4158 -0.58767 2005 12 7 53711 0.1292 0.4146 -0.58816 2005 12 8 53712 0.1299 0.4135 -0.58891 2005 12 9 53713 0.1307 0.4123 -0.58986 2005 12 10 53714 0.1314 0.4111 -0.59089 2005 12 11 53715 0.1322 0.4099 -0.59182 2005 12 12 53716 0.1329 0.4087 -0.59250 2005 12 13 53717 0.1336 0.4075 -0.59285 2005 12 14 53718 0.1343 0.4063 -0.59282 2005 12 15 53719 0.1350 0.4051 -0.59249 2005 12 16 53720 0.1357 0.4039 -0.59197 2005 12 17 53721 0.1364 0.4027 -0.59128 2005 12 18 53722 0.1370 0.4015 -0.59054 2005 12 19 53723 0.1377 0.4002 -0.58987 2005 12 20 53724 0.1383 0.3990 -0.58933 2005 12 21 53725 0.1389 0.3977 -0.58899 2005 12 22 53726 0.1395 0.3965 -0.58878 2005 12 23 53727 0.1401 0.3952 -0.58870 2005 12 24 53728 0.1406 0.3939 -0.58868 2005 12 25 53729 0.1412 0.3927 -0.58864 2005 12 26 53730 0.1417 0.3914 -0.58857 2005 12 27 53731 0.1423 0.3901 -0.58838 2005 12 28 53732 0.1428 0.3888 -0.58803 2005 12 29 53733 0.1433 0.3875 -0.58747 2005 12 30 53734 0.1438 0.3862 -0.58673 2005 12 31 53735 0.1442 0.3849 -0.58593 2006 1 1 53736 0.1447 0.3836 -0.58524 2006 1 2 53737 0.1451 0.3823 -0.58479 2006 1 3 53738 0.1456 0.3810 -0.58467 2006 1 4 53739 0.1460 0.3797 -0.58488 2006 1 5 53740 0.1464 0.3784 -0.58535 2006 1 6 53741 0.1467 0.3771 -0.58600 2006 1 7 53742 0.1471 0.3757 -0.58667 2006 1 8 53743 0.1475 0.3744 -0.58716 2006 1 9 53744 0.1478 0.3731 -0.58739 2006 1 10 53745 0.1481 0.3718 -0.58738 2006 1 11 53746 0.1484 0.3704 -0.58713 2006 1 12 53747 0.1487 0.3691 -0.58667 2006 1 13 53748 0.1490 0.3678 -0.58607 2006 1 14 53749 0.1492 0.3664 -0.58549 2006 1 15 53750 0.1495 0.3651 -0.58498 2006 1 16 53751 0.1497 0.3638 -0.58462 2006 1 17 53752 0.1499 0.3624 -0.58445 2006 1 18 53753 0.1501 0.3611 -0.58450 2006 1 19 53754 0.1502 0.3597 -0.58471 2006 1 20 53755 0.1504 0.3584 -0.58502 2006 1 21 53756 0.1505 0.3571 -0.58537 2006 1 22 53757 0.1506 0.3557 -0.58567 2006 1 23 53758 0.1507 0.3544 -0.58584 2006 1 24 53759 0.1508 0.3530 -0.58580 2006 1 25 53760 0.1509 0.3517 -0.58556 2006 1 26 53761 0.1509 0.3504 -0.58514 2006 1 27 53762 0.1510 0.3490 -0.58460 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) 53378 -56.44 .74 -1.22 .17 53379 -56.65 .10 -1.56 .13 53380 -56.32 .10 -1.81 .13 53381 -55.71 .12 -1.77 .34 53382 -55.24 .74 -1.56 .34 53383 -55.07 .74 -1.45 .34 53384 -55.10 .74 -1.43 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53378 0.015 0.294 -0.498 0.170 53379 0.048 0.040 -0.480 0.130 53380 0.046 0.040 -0.440 0.130 53381 0.024 0.048 -0.451 0.340 53382 0.020 0.294 -0.471 0.340 53383 0.025 0.294 -0.467 0.340 53384 0.018 0.294 -0.442 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 **************************************************************************