********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 18 February 2010 Vol. XXIII No. 007 ______________________________________________________________________ GENERAL INFORMATION: To receive this information electronically, contact: ser7@maia.usno.navy.mil or use 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 = +0.0 seconds beginning 11 March 2010 at 0000 UTC Beginning 1 January 2009: TAI-UTC(BIPM) = 34.000 000 seconds ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at . 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 10 2 12 55239 -.01354 .00010 0.22095 .00009 0.075645 0.000015 10 2 13 55240 -.01592 .00010 0.22255 .00009 0.074756 0.000015 10 2 14 55241 -.01783 .00010 0.22436 .00009 0.073677 0.000015 10 2 15 55242 -.01957 .00010 0.22632 .00009 0.072412 0.000032 10 2 16 55243 -.02117 .00010 0.22854 .00009 0.071014 0.000037 10 2 17 55244 -.02250 .00009 0.23082 .00009 0.069537 0.000048 10 2 18 55245 -.02351 .00009 0.23296 .00009 0.068096 0.000057 _______________________________________________________________________ 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 = 0.0799 - 0.1302 cos A + 0.0122 sin A + 0.0269 cos C - 0.1188 sin C y = 0.3444 + 0.0087 cos A + 0.1166 sin A - 0.1188 cos C - 0.0269 sin C UT1-UTC = 0.0651 - 0.00089 (MJD - 55253) - (UT2-UT1) where A = 2*pi*(MJD-55245)/365.25 and C = 2*pi*(MJD-55245)/435. TAI-UTC(MJD 55246) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55245)**0.80 S t = 0.00025 (MJD-55245)**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) 2010 2 19 55246 -0.0250 0.2352 0.06678 2010 2 20 55247 -0.0262 0.2372 0.06559 2010 2 21 55248 -0.0276 0.2391 0.06453 2010 2 22 55249 -0.0291 0.2410 0.06360 2010 2 23 55250 -0.0306 0.2428 0.06276 2010 2 24 55251 -0.0321 0.2446 0.06194 2010 2 25 55252 -0.0336 0.2464 0.06100 2010 2 26 55253 -0.0350 0.2482 0.05983 2010 2 27 55254 -0.0365 0.2500 0.05836 2010 2 28 55255 -0.0379 0.2518 0.05659 2010 3 1 55256 -0.0393 0.2537 0.05462 2010 3 2 55257 -0.0406 0.2555 0.05260 2010 3 3 55258 -0.0419 0.2574 0.05068 2010 3 4 55259 -0.0432 0.2593 0.04900 2010 3 5 55260 -0.0445 0.2612 0.04760 2010 3 6 55261 -0.0457 0.2631 0.04648 2010 3 7 55262 -0.0469 0.2650 0.04552 2010 3 8 55263 -0.0480 0.2670 0.04463 2010 3 9 55264 -0.0491 0.2689 0.04372 2010 3 10 55265 -0.0502 0.2709 0.04272 2010 3 11 55266 -0.0512 0.2729 0.04161 2010 3 12 55267 -0.0522 0.2750 0.04036 2010 3 13 55268 -0.0532 0.2770 0.03899 2010 3 14 55269 -0.0541 0.2790 0.03749 2010 3 15 55270 -0.0550 0.2811 0.03589 2010 3 16 55271 -0.0559 0.2832 0.03426 2010 3 17 55272 -0.0567 0.2853 0.03265 2010 3 18 55273 -0.0575 0.2873 0.03112 2010 3 19 55274 -0.0582 0.2895 0.02972 2010 3 20 55275 -0.0589 0.2916 0.02848 2010 3 21 55276 -0.0596 0.2937 0.02738 2010 3 22 55277 -0.0602 0.2958 0.02639 2010 3 23 55278 -0.0608 0.2980 0.02542 2010 3 24 55279 -0.0613 0.3001 0.02438 2010 3 25 55280 -0.0619 0.3023 0.02316 2010 3 26 55281 -0.0623 0.3045 0.02171 2010 3 27 55282 -0.0628 0.3067 0.01999 2010 3 28 55283 -0.0632 0.3088 0.01806 2010 3 29 55284 -0.0635 0.3110 0.01603 2010 3 30 55285 -0.0638 0.3132 0.01404 2010 3 31 55286 -0.0641 0.3154 0.01222 2010 4 1 55287 -0.0644 0.3176 0.01065 2010 4 2 55288 -0.0646 0.3198 0.00933 2010 4 3 55289 -0.0647 0.3220 0.00822 2010 4 4 55290 -0.0649 0.3242 0.00724 2010 4 5 55291 -0.0650 0.3264 0.00631 2010 4 6 55292 -0.0650 0.3287 0.00536 2010 4 7 55293 -0.0650 0.3309 0.00433 2010 4 8 55294 -0.0650 0.3331 0.00320 2010 4 9 55295 -0.0649 0.3353 0.00195 2010 4 10 55296 -0.0648 0.3375 0.00057 2010 4 11 55297 -0.0647 0.3397 -0.00091 2010 4 12 55298 -0.0645 0.3419 -0.00244 2010 4 13 55299 -0.0643 0.3441 -0.00397 2010 4 14 55300 -0.0641 0.3463 -0.00544 2010 4 15 55301 -0.0638 0.3485 -0.00679 2010 4 16 55302 -0.0634 0.3506 -0.00799 2010 4 17 55303 -0.0631 0.3528 -0.00902 2010 4 18 55304 -0.0627 0.3550 -0.00992 2010 4 19 55305 -0.0622 0.3572 -0.01075 2010 4 20 55306 -0.0618 0.3593 -0.01160 2010 4 21 55307 -0.0613 0.3615 -0.01257 2010 4 22 55308 -0.0607 0.3636 -0.01373 2010 4 23 55309 -0.0601 0.3657 -0.01512 2010 4 24 55310 -0.0595 0.3678 -0.01671 2010 4 25 55311 -0.0589 0.3700 -0.01841 2010 4 26 55312 -0.0582 0.3721 -0.02011 2010 4 27 55313 -0.0575 0.3741 -0.02168 2010 4 28 55314 -0.0567 0.3762 -0.02301 2010 4 29 55315 -0.0559 0.3783 -0.02408 2010 4 30 55316 -0.0551 0.3803 -0.02491 2010 5 1 55317 -0.0542 0.3824 -0.02556 2010 5 2 55318 -0.0534 0.3844 -0.02611 2010 5 3 55319 -0.0524 0.3864 -0.02666 2010 5 4 55320 -0.0515 0.3884 -0.02726 2010 5 5 55321 -0.0505 0.3904 -0.02794 2010 5 6 55322 -0.0495 0.3923 -0.02874 2010 5 7 55323 -0.0484 0.3943 -0.02964 2010 5 8 55324 -0.0473 0.3962 -0.03064 2010 5 9 55325 -0.0462 0.3981 -0.03170 2010 5 10 55326 -0.0451 0.4000 -0.03277 2010 5 11 55327 -0.0439 0.4019 -0.03379 2010 5 12 55328 -0.0427 0.4038 -0.03471 2010 5 13 55329 -0.0415 0.4056 -0.03548 2010 5 14 55330 -0.0402 0.4074 -0.03610 2010 5 15 55331 -0.0389 0.4092 -0.03657 2010 5 16 55332 -0.0376 0.4110 -0.03695 2010 5 17 55333 -0.0363 0.4127 -0.03734 2010 5 18 55334 -0.0349 0.4145 -0.03783 2010 5 19 55335 -0.0335 0.4162 -0.03849 2010 5 20 55336 -0.0321 0.4179 -0.03936 2010 5 21 55337 -0.0306 0.4196 -0.04042 2010 5 22 55338 -0.0291 0.4212 -0.04160 2010 5 23 55339 -0.0276 0.4228 -0.04278 2010 5 24 55340 -0.0261 0.4244 -0.04386 2010 5 25 55341 -0.0245 0.4260 -0.04475 2010 5 26 55342 -0.0230 0.4275 -0.04540 2010 5 27 55343 -0.0214 0.4291 -0.04581 2010 5 28 55344 -0.0197 0.4306 -0.04603 2010 5 29 55345 -0.0181 0.4320 -0.04614 2010 5 30 55346 -0.0164 0.4335 -0.04621 2010 5 31 55347 -0.0148 0.4349 -0.04632 2010 6 1 55348 -0.0131 0.4363 -0.04652 2010 6 2 55349 -0.0113 0.4377 -0.04682 2010 6 3 55350 -0.0096 0.4390 -0.04723 2010 6 4 55351 -0.0078 0.4403 -0.04774 2010 6 5 55352 -0.0060 0.4416 -0.04832 2010 6 6 55353 -0.0043 0.4429 -0.04891 2010 6 7 55354 -0.0024 0.4441 -0.04948 2010 6 8 55355 -0.0006 0.4453 -0.04996 2010 6 9 55356 0.0012 0.4465 -0.05031 2010 6 10 55357 0.0031 0.4477 -0.05051 2010 6 11 55358 0.0050 0.4488 -0.05056 2010 6 12 55359 0.0069 0.4499 -0.05051 2010 6 13 55360 0.0088 0.4509 -0.05044 2010 6 14 55361 0.0107 0.4519 -0.05045 2010 6 15 55362 0.0127 0.4529 -0.05063 2010 6 16 55363 0.0146 0.4539 -0.05103 2010 6 17 55364 0.0166 0.4549 -0.05163 2010 6 18 55365 0.0185 0.4558 -0.05236 2010 6 19 55366 0.0205 0.4566 -0.05310 2010 6 20 55367 0.0225 0.4575 -0.05375 2010 6 21 55368 0.0245 0.4583 -0.05420 2010 6 22 55369 0.0265 0.4591 -0.05442 2010 6 23 55370 0.0285 0.4598 -0.05441 2010 6 24 55371 0.0306 0.4606 -0.05419 2010 6 25 55372 0.0326 0.4612 -0.05385 2010 6 26 55373 0.0346 0.4619 -0.05346 2010 6 27 55374 0.0367 0.4625 -0.05309 2010 6 28 55375 0.0387 0.4631 -0.05280 2010 6 29 55376 0.0408 0.4637 -0.05262 2010 6 30 55377 0.0429 0.4642 -0.05256 2010 7 1 55378 0.0449 0.4647 -0.05261 2010 7 2 55379 0.0470 0.4652 -0.05273 2010 7 3 55380 0.0491 0.4656 -0.05288 2010 7 4 55381 0.0512 0.4660 -0.05302 2010 7 5 55382 0.0532 0.4664 -0.05309 2010 7 6 55383 0.0553 0.4667 -0.05306 2010 7 7 55384 0.0574 0.4670 -0.05291 2010 7 8 55385 0.0595 0.4673 -0.05261 2010 7 9 55386 0.0616 0.4676 -0.05221 2010 7 10 55387 0.0636 0.4678 -0.05178 2010 7 11 55388 0.0657 0.4679 -0.05140 2010 7 12 55389 0.0678 0.4681 -0.05119 2010 7 13 55390 0.0699 0.4682 -0.05122 2010 7 14 55391 0.0719 0.4683 -0.05151 2010 7 15 55392 0.0740 0.4683 -0.05198 2010 7 16 55393 0.0760 0.4684 -0.05253 2010 7 17 55394 0.0781 0.4683 -0.05301 2010 7 18 55395 0.0802 0.4683 -0.05330 2010 7 19 55396 0.0822 0.4682 -0.05336 2010 7 20 55397 0.0842 0.4681 -0.05317 2010 7 21 55398 0.0863 0.4680 -0.05278 2010 7 22 55399 0.0883 0.4678 -0.05226 2010 7 23 55400 0.0903 0.4676 -0.05169 2010 7 24 55401 0.0923 0.4674 -0.05114 2010 7 25 55402 0.0943 0.4671 -0.05067 2010 7 26 55403 0.0963 0.4668 -0.05032 2010 7 27 55404 0.0982 0.4665 -0.05011 2010 7 28 55405 0.1002 0.4662 -0.05003 2010 7 29 55406 0.1022 0.4658 -0.05006 2010 7 30 55407 0.1041 0.4654 -0.05014 2010 7 31 55408 0.1060 0.4649 -0.05024 2010 8 1 55409 0.1079 0.4645 -0.05030 2010 8 2 55410 0.1098 0.4639 -0.05028 2010 8 3 55411 0.1117 0.4634 -0.05016 2010 8 4 55412 0.1136 0.4629 -0.04992 2010 8 5 55413 0.1155 0.4623 -0.04958 2010 8 6 55414 0.1173 0.4617 -0.04920 2010 8 7 55415 0.1191 0.4610 -0.04885 2010 8 8 55416 0.1209 0.4603 -0.04864 2010 8 9 55417 0.1227 0.4596 -0.04867 2010 8 10 55418 0.1245 0.4589 -0.04899 2010 8 11 55419 0.1263 0.4582 -0.04957 2010 8 12 55420 0.1280 0.4574 -0.05030 2010 8 13 55421 0.1297 0.4566 -0.05104 2010 8 14 55422 0.1314 0.4558 -0.05163 2010 8 15 55423 0.1331 0.4549 -0.05197 2010 8 16 55424 0.1348 0.4540 -0.05203 2010 8 17 55425 0.1364 0.4531 -0.05185 2010 8 18 55426 0.1381 0.4522 -0.05150 2010 8 19 55427 0.1397 0.4512 -0.05105 2010 8 20 55428 0.1412 0.4502 -0.05059 2010 8 21 55429 0.1428 0.4492 -0.05017 2010 8 22 55430 0.1443 0.4482 -0.04983 2010 8 23 55431 0.1459 0.4472 -0.04959 2010 8 24 55432 0.1473 0.4461 -0.04947 2010 8 25 55433 0.1488 0.4450 -0.04943 2010 8 26 55434 0.1503 0.4439 -0.04945 2010 8 27 55435 0.1517 0.4427 -0.04952 2010 8 28 55436 0.1531 0.4416 -0.04959 2010 8 29 55437 0.1545 0.4404 -0.04965 2010 8 30 55438 0.1558 0.4392 -0.04968 2010 8 31 55439 0.1571 0.4379 -0.04966 2010 9 1 55440 0.1584 0.4367 -0.04960 2010 9 2 55441 0.1597 0.4354 -0.04954 2010 9 3 55442 0.1610 0.4342 -0.04952 2010 9 4 55443 0.1622 0.4329 -0.04965 2010 9 5 55444 0.1634 0.4315 -0.05001 2010 9 6 55445 0.1646 0.4302 -0.05068 2010 9 7 55446 0.1657 0.4289 -0.05167 2010 9 8 55447 0.1668 0.4275 -0.05290 2010 9 9 55448 0.1679 0.4261 -0.05426 2010 9 10 55449 0.1690 0.4247 -0.05557 2010 9 11 55450 0.1700 0.4233 -0.05671 2010 9 12 55451 0.1710 0.4218 -0.05761 2010 9 13 55452 0.1720 0.4204 -0.05826 2010 9 14 55453 0.1729 0.4189 -0.05875 2010 9 15 55454 0.1738 0.4175 -0.05917 2010 9 16 55455 0.1747 0.4160 -0.05959 2010 9 17 55456 0.1756 0.4145 -0.06008 2010 9 18 55457 0.1764 0.4130 -0.06067 2010 9 19 55458 0.1772 0.4114 -0.06140 2010 9 20 55459 0.1780 0.4099 -0.06225 2010 9 21 55460 0.1788 0.4083 -0.06323 2010 9 22 55461 0.1795 0.4068 -0.06430 2010 9 23 55462 0.1802 0.4052 -0.06541 2010 9 24 55463 0.1808 0.4036 -0.06652 2010 9 25 55464 0.1814 0.4020 -0.06759 2010 9 26 55465 0.1820 0.4004 -0.06860 2010 9 27 55466 0.1826 0.3988 -0.06952 2010 9 28 55467 0.1832 0.3972 -0.07032 2010 9 29 55468 0.1837 0.3956 -0.07100 2010 9 30 55469 0.1841 0.3940 -0.07160 2010 10 1 55470 0.1846 0.3923 -0.07221 2010 10 2 55471 0.1850 0.3907 -0.07295 2010 10 3 55472 0.1854 0.3891 -0.07393 2010 10 4 55473 0.1858 0.3874 -0.07526 2010 10 5 55474 0.1861 0.3857 -0.07690 2010 10 6 55475 0.1864 0.3841 -0.07874 2010 10 7 55476 0.1866 0.3824 -0.08057 2010 10 8 55477 0.1869 0.3808 -0.08223 2010 10 9 55478 0.1871 0.3791 -0.08363 2010 10 10 55479 0.1873 0.3774 -0.08474 2010 10 11 55480 0.1874 0.3757 -0.08561 2010 10 12 55481 0.1875 0.3741 -0.08629 2010 10 13 55482 0.1876 0.3724 -0.08694 2010 10 14 55483 0.1877 0.3707 -0.08763 2010 10 15 55484 0.1877 0.3690 -0.08838 2010 10 16 55485 0.1877 0.3674 -0.08928 2010 10 17 55486 0.1877 0.3657 -0.09031 2010 10 18 55487 0.1876 0.3640 -0.09146 2010 10 19 55488 0.1875 0.3624 -0.09271 2010 10 20 55489 0.1874 0.3607 -0.09403 2010 10 21 55490 0.1872 0.3590 -0.09535 2010 10 22 55491 0.1871 0.3574 -0.09662 2010 10 23 55492 0.1869 0.3557 -0.09775 2010 10 24 55493 0.1866 0.3541 -0.09875 2010 10 25 55494 0.1864 0.3524 -0.09964 2010 10 26 55495 0.1861 0.3508 -0.10044 2010 10 27 55496 0.1857 0.3491 -0.10120 2010 10 28 55497 0.1854 0.3475 -0.10195 2010 10 29 55498 0.1850 0.3459 -0.10280 2010 10 30 55499 0.1846 0.3442 -0.10385 2010 10 31 55500 0.1842 0.3426 -0.10516 2010 11 1 55501 0.1837 0.3410 -0.10681 2010 11 2 55502 0.1832 0.3394 -0.10871 2010 11 3 55503 0.1827 0.3378 -0.11077 2010 11 4 55504 0.1822 0.3363 -0.11280 2010 11 5 55505 0.1816 0.3347 -0.11469 2010 11 6 55506 0.1810 0.3331 -0.11635 2010 11 7 55507 0.1804 0.3316 -0.11777 2010 11 8 55508 0.1798 0.3300 -0.11901 2010 11 9 55509 0.1791 0.3285 -0.12012 2010 11 10 55510 0.1784 0.3270 -0.12120 2010 11 11 55511 0.1777 0.3255 -0.12238 2010 11 12 55512 0.1770 0.3240 -0.12369 2010 11 13 55513 0.1762 0.3225 -0.12511 2010 11 14 55514 0.1754 0.3211 -0.12660 2010 11 15 55515 0.1746 0.3196 -0.12815 2010 11 16 55516 0.1738 0.3182 -0.12974 2010 11 17 55517 0.1729 0.3167 -0.13130 2010 11 18 55518 0.1720 0.3153 -0.13281 2010 11 19 55519 0.1711 0.3139 -0.13421 2010 11 20 55520 0.1702 0.3125 -0.13551 2010 11 21 55521 0.1692 0.3112 -0.13667 2010 11 22 55522 0.1683 0.3098 -0.13772 2010 11 23 55523 0.1673 0.3085 -0.13870 2010 11 24 55524 0.1663 0.3071 -0.13969 2010 11 25 55525 0.1653 0.3058 -0.14076 2010 11 26 55526 0.1642 0.3046 -0.14195 2010 11 27 55527 0.1631 0.3033 -0.14333 2010 11 28 55528 0.1620 0.3020 -0.14491 2010 11 29 55529 0.1609 0.3008 -0.14668 2010 11 30 55530 0.1598 0.2996 -0.14856 2010 12 1 55531 0.1587 0.2984 -0.15042 2010 12 2 55532 0.1575 0.2972 -0.15210 2010 12 3 55533 0.1563 0.2960 -0.15353 2010 12 4 55534 0.1552 0.2949 -0.15473 2010 12 5 55535 0.1539 0.2938 -0.15572 2010 12 6 55536 0.1527 0.2927 -0.15651 2010 12 7 55537 0.1515 0.2916 -0.15717 2010 12 8 55538 0.1502 0.2905 -0.15782 2010 12 9 55539 0.1490 0.2895 -0.15855 2010 12 10 55540 0.1477 0.2884 -0.15943 2010 12 11 55541 0.1464 0.2874 -0.16041 2010 12 12 55542 0.1451 0.2864 -0.16146 2010 12 13 55543 0.1437 0.2855 -0.16255 2010 12 14 55544 0.1424 0.2845 -0.16364 2010 12 15 55545 0.1411 0.2836 -0.16467 2010 12 16 55546 0.1397 0.2827 -0.16561 2010 12 17 55547 0.1383 0.2818 -0.16644 2010 12 18 55548 0.1369 0.2810 -0.16721 2010 12 19 55549 0.1356 0.2802 -0.16791 2010 12 20 55550 0.1342 0.2793 -0.16854 2010 12 21 55551 0.1327 0.2785 -0.16917 2010 12 22 55552 0.1313 0.2778 -0.16985 2010 12 23 55553 0.1299 0.2770 -0.17065 2010 12 24 55554 0.1285 0.2763 -0.17163 2010 12 25 55555 0.1270 0.2756 -0.17284 2010 12 26 55556 0.1256 0.2749 -0.17425 2010 12 27 55557 0.1241 0.2743 -0.17574 2010 12 28 55558 0.1226 0.2737 -0.17720 2010 12 29 55559 0.1212 0.2731 -0.17850 2010 12 30 55560 0.1197 0.2725 -0.17959 2010 12 31 55561 0.1182 0.2719 -0.18043 2011 1 1 55562 0.1167 0.2714 -0.18108 2011 1 2 55563 0.1152 0.2709 -0.18160 2011 1 3 55564 0.1137 0.2704 -0.18205 2011 1 4 55565 0.1122 0.2699 -0.18246 2011 1 5 55566 0.1107 0.2695 -0.18290 2011 1 6 55567 0.1092 0.2690 -0.18344 2011 1 7 55568 0.1077 0.2686 -0.18412 2011 1 8 55569 0.1062 0.2683 -0.18491 2011 1 9 55570 0.1047 0.2679 -0.18573 2011 1 10 55571 0.1032 0.2676 -0.18653 2011 1 11 55572 0.1017 0.2673 -0.18729 2011 1 12 55573 0.1002 0.2670 -0.18803 2011 1 13 55574 0.0987 0.2668 -0.18871 2011 1 14 55575 0.0972 0.2665 -0.18926 2011 1 15 55576 0.0957 0.2663 -0.18967 2011 1 16 55577 0.0942 0.2662 -0.18998 2011 1 17 55578 0.0927 0.2660 -0.19021 2011 1 18 55579 0.0912 0.2659 -0.19040 2011 1 19 55580 0.0897 0.2657 -0.19063 2011 1 20 55581 0.0882 0.2657 -0.19103 2011 1 21 55582 0.0867 0.2656 -0.19175 2011 1 22 55583 0.0852 0.2656 -0.19274 2011 1 23 55584 0.0838 0.2655 -0.19390 2011 1 24 55585 0.0823 0.2655 -0.19507 2011 1 25 55586 0.0808 0.2656 -0.19613 2011 1 26 55587 0.0794 0.2656 -0.19699 2011 1 27 55588 0.0779 0.2657 -0.19763 2011 1 28 55589 0.0765 0.2658 -0.19809 2011 1 29 55590 0.0750 0.2659 -0.19840 2011 1 30 55591 0.0736 0.2660 -0.19865 2011 1 31 55592 0.0722 0.2662 -0.19895 2011 2 1 55593 0.0708 0.2664 -0.19935 2011 2 2 55594 0.0694 0.2666 -0.19985 2011 2 3 55595 0.0680 0.2668 -0.20043 2011 2 4 55596 0.0666 0.2671 -0.20107 2011 2 5 55597 0.0652 0.2673 -0.20179 2011 2 6 55598 0.0638 0.2676 -0.20254 2011 2 7 55599 0.0625 0.2679 -0.20331 2011 2 8 55600 0.0611 0.2683 -0.20407 2011 2 9 55601 0.0598 0.2686 -0.20477 2011 2 10 55602 0.0585 0.2690 -0.20536 2011 2 11 55603 0.0572 0.2694 -0.20585 2011 2 12 55604 0.0559 0.2698 -0.20626 2011 2 13 55605 0.0546 0.2702 -0.20663 2011 2 14 55606 0.0533 0.2707 -0.20702 2011 2 15 55607 0.0521 0.2712 -0.20752 2011 2 16 55608 0.0508 0.2717 -0.20818 2011 2 17 55609 0.0496 0.2722 -0.20909 2011 2 18 55610 0.0484 0.2727 -0.21032 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) 55219 -64.78 0.22 -5.65 0.34 55220 -65.05 0.19 -5.79 0.12 55221 -65.42 0.19 -5.71 0.12 55222 -65.81 0.11 -5.53 0.18 55223 -66.08 0.21 -5.54 0.12 55224 -66.00 0.21 -5.82 0.12 55225 -65.52 0.21 -6.11 0.12 55226 -64.92 0.30 -6.14 0.34 55227 -64.55 0.21 -5.98 0.34 55228 -64.48 0.21 -5.87 0.34 55229 -64.56 0.74 -5.90 0.34 55230 -64.70 0.74 -5.92 0.34 55231 -64.94 0.74 -5.84 0.34 55232 -65.20 0.74 -5.82 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55219 -0.157 0.088 -0.301 0.340 55220 -0.164 0.076 -0.323 0.120 55221 -0.162 0.076 -0.358 0.120 55222 -0.138 0.044 -0.409 0.180 55223 -0.095 0.084 -0.433 0.120 55224 -0.064 0.084 -0.390 0.120 55225 -0.083 0.084 -0.324 0.120 55226 -0.140 0.119 -0.310 0.340 55227 -0.186 0.084 -0.354 0.340 55228 -0.210 0.084 -0.374 0.340 55229 -0.232 0.294 -0.365 0.340 55230 -0.249 0.294 -0.358 0.340 55231 -0.253 0.294 -0.346 0.340 55232 -0.252 0.294 -0.322 0.340 The recommended software to predict celestial pole offsets can be found at and software for the calculation of the dX and dY components with respect to IAU2000A Nutation/Precession Theory can be found at the web site in Chapter 5 Section 5.5 of the IERS Conventions.