********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 16 August 2007 Vol. XX No. 033 ______________________________________________________________________ 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 = -0.2 seconds beginning 14 June 2007 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 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 7 8 10 54322 .21810 .00010 .31089 .00010 -.163286 .000010 7 8 11 54323 .21722 .00010 .30827 .00010 -.162916 .000011 7 8 12 54324 .21685 .00010 .30570 .00010 -.162745 .000011 7 8 13 54325 .21662 .00009 .30329 .00009 -.162764 .000010 7 8 14 54326 .21618 .00009 .30106 .00009 -.162913 .000010 7 8 15 54327 .21534 .00009 .29910 .00009 -.163136 .000048 7 8 16 54328 .21421 .00009 .29726 .00010 -.163391 .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 = .0497 + .0622 cos A + .0553 sin A + .0973 cos C - .0942 sin C y = .3459 + .0500 cos A - .0586 sin A - .0942 cos C - .0973 sin C UT1-UTC = -.1804 - .00095 (MJD - 54333) - (UT2-UT1) where A = 2*pi*(MJD-54328)/365.25 and C = 2*pi*(MJD-54328)/435. TAI-UTC(MJD 54329) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54328)**0.80 S t = 0.00025 (MJD-54328)**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) 2007 8 17 54329 0.2129 0.2952 -0.16361 2007 8 18 54330 0.2115 0.2931 -0.16376 2007 8 19 54331 0.2102 0.2909 -0.16378 2007 8 20 54332 0.2089 0.2887 -0.16368 2007 8 21 54333 0.2077 0.2864 -0.16344 2007 8 22 54334 0.2065 0.2841 -0.16305 2007 8 23 54335 0.2052 0.2818 -0.16256 2007 8 24 54336 0.2039 0.2796 -0.16205 2007 8 25 54337 0.2026 0.2774 -0.16164 2007 8 26 54338 0.2012 0.2753 -0.16146 2007 8 27 54339 0.1997 0.2731 -0.16160 2007 8 28 54340 0.1982 0.2709 -0.16211 2007 8 29 54341 0.1967 0.2687 -0.16296 2007 8 30 54342 0.1952 0.2666 -0.16403 2007 8 31 54343 0.1936 0.2645 -0.16514 2007 9 1 54344 0.1920 0.2623 -0.16612 2007 9 2 54345 0.1904 0.2603 -0.16685 2007 9 3 54346 0.1887 0.2582 -0.16728 2007 9 4 54347 0.1870 0.2561 -0.16744 2007 9 5 54348 0.1852 0.2541 -0.16746 2007 9 6 54349 0.1835 0.2521 -0.16747 2007 9 7 54350 0.1816 0.2501 -0.16758 2007 9 8 54351 0.1798 0.2482 -0.16788 2007 9 9 54352 0.1779 0.2463 -0.16841 2007 9 10 54353 0.1760 0.2444 -0.16915 2007 9 11 54354 0.1740 0.2425 -0.17007 2007 9 12 54355 0.1721 0.2407 -0.17108 2007 9 13 54356 0.1700 0.2389 -0.17212 2007 9 14 54357 0.1680 0.2371 -0.17310 2007 9 15 54358 0.1659 0.2353 -0.17398 2007 9 16 54359 0.1638 0.2336 -0.17472 2007 9 17 54360 0.1617 0.2319 -0.17532 2007 9 18 54361 0.1595 0.2303 -0.17580 2007 9 19 54362 0.1573 0.2286 -0.17620 2007 9 20 54363 0.1551 0.2270 -0.17657 2007 9 21 54364 0.1528 0.2255 -0.17701 2007 9 22 54365 0.1505 0.2240 -0.17760 2007 9 23 54366 0.1482 0.2225 -0.17844 2007 9 24 54367 0.1458 0.2210 -0.17958 2007 9 25 54368 0.1435 0.2196 -0.18105 2007 9 26 54369 0.1411 0.2182 -0.18277 2007 9 27 54370 0.1387 0.2169 -0.18460 2007 9 28 54371 0.1362 0.2156 -0.18636 2007 9 29 54372 0.1337 0.2143 -0.18791 2007 9 30 54373 0.1313 0.2130 -0.18914 2007 10 1 54374 0.1287 0.2118 -0.19007 2007 10 2 54375 0.1262 0.2107 -0.19080 2007 10 3 54376 0.1236 0.2096 -0.19146 2007 10 4 54377 0.1211 0.2085 -0.19218 2007 10 5 54378 0.1185 0.2074 -0.19306 2007 10 6 54379 0.1158 0.2064 -0.19414 2007 10 7 54380 0.1132 0.2055 -0.19543 2007 10 8 54381 0.1105 0.2045 -0.19688 2007 10 9 54382 0.1079 0.2037 -0.19844 2007 10 10 54383 0.1052 0.2028 -0.20002 2007 10 11 54384 0.1025 0.2020 -0.20156 2007 10 12 54385 0.0997 0.2013 -0.20298 2007 10 13 54386 0.0970 0.2005 -0.20424 2007 10 14 54387 0.0943 0.1999 -0.20533 2007 10 15 54388 0.0915 0.1992 -0.20626 2007 10 16 54389 0.0887 0.1986 -0.20707 2007 10 17 54390 0.0859 0.1981 -0.20782 2007 10 18 54391 0.0831 0.1976 -0.20859 2007 10 19 54392 0.0803 0.1971 -0.20945 2007 10 20 54393 0.0775 0.1967 -0.21050 2007 10 21 54394 0.0746 0.1963 -0.21180 2007 10 22 54395 0.0718 0.1960 -0.21340 2007 10 23 54396 0.0690 0.1957 -0.21528 2007 10 24 54397 0.0661 0.1954 -0.21734 2007 10 25 54398 0.0632 0.1952 -0.21942 2007 10 26 54399 0.0604 0.1950 -0.22136 2007 10 27 54400 0.0575 0.1949 -0.22302 2007 10 28 54401 0.0546 0.1948 -0.22436 2007 10 29 54402 0.0517 0.1948 -0.22543 2007 10 30 54403 0.0489 0.1948 -0.22635 2007 10 31 54404 0.0460 0.1949 -0.22726 2007 11 1 54405 0.0431 0.1950 -0.22828 2007 11 2 54406 0.0402 0.1951 -0.22948 2007 11 3 54407 0.0373 0.1953 -0.23084 2007 11 4 54408 0.0344 0.1955 -0.23234 2007 11 5 54409 0.0316 0.1958 -0.23392 2007 11 6 54410 0.0287 0.1961 -0.23551 2007 11 7 54411 0.0258 0.1965 -0.23704 2007 11 8 54412 0.0229 0.1969 -0.23844 2007 11 9 54413 0.0201 0.1973 -0.23967 2007 11 10 54414 0.0172 0.1978 -0.24072 2007 11 11 54415 0.0144 0.1984 -0.24159 2007 11 12 54416 0.0115 0.1990 -0.24231 2007 11 13 54417 0.0087 0.1996 -0.24294 2007 11 14 54418 0.0059 0.2002 -0.24356 2007 11 15 54419 0.0030 0.2010 -0.24424 2007 11 16 54420 0.0002 0.2017 -0.24505 2007 11 17 54421 -0.0026 0.2025 -0.24607 2007 11 18 54422 -0.0053 0.2033 -0.24734 2007 11 19 54423 -0.0081 0.2042 -0.24885 2007 11 20 54424 -0.0109 0.2052 -0.25055 2007 11 21 54425 -0.0136 0.2061 -0.25233 2007 11 22 54426 -0.0163 0.2071 -0.25404 2007 11 23 54427 -0.0191 0.2082 -0.25554 2007 11 24 54428 -0.0218 0.2093 -0.25674 2007 11 25 54429 -0.0244 0.2104 -0.25765 2007 11 26 54430 -0.0271 0.2116 -0.25837 2007 11 27 54431 -0.0297 0.2128 -0.25902 2007 11 28 54432 -0.0324 0.2140 -0.25977 2007 11 29 54433 -0.0350 0.2153 -0.26069 2007 11 30 54434 -0.0376 0.2167 -0.26183 2007 12 1 54435 -0.0401 0.2180 -0.26313 2007 12 2 54436 -0.0427 0.2195 -0.26452 2007 12 3 54437 -0.0452 0.2209 -0.26592 2007 12 4 54438 -0.0477 0.2224 -0.26727 2007 12 5 54439 -0.0502 0.2239 -0.26851 2007 12 6 54440 -0.0526 0.2255 -0.26960 2007 12 7 54441 -0.0550 0.2271 -0.27050 2007 12 8 54442 -0.0574 0.2287 -0.27123 2007 12 9 54443 -0.0598 0.2304 -0.27182 2007 12 10 54444 -0.0621 0.2321 -0.27230 2007 12 11 54445 -0.0645 0.2339 -0.27276 2007 12 12 54446 -0.0667 0.2357 -0.27327 2007 12 13 54447 -0.0690 0.2375 -0.27391 2007 12 14 54448 -0.0712 0.2393 -0.27475 2007 12 15 54449 -0.0734 0.2412 -0.27581 2007 12 16 54450 -0.0756 0.2432 -0.27711 2007 12 17 54451 -0.0777 0.2451 -0.27859 2007 12 18 54452 -0.0798 0.2471 -0.28018 2007 12 19 54453 -0.0819 0.2491 -0.28174 2007 12 20 54454 -0.0839 0.2512 -0.28316 2007 12 21 54455 -0.0859 0.2533 -0.28432 2007 12 22 54456 -0.0879 0.2554 -0.28521 2007 12 23 54457 -0.0898 0.2575 -0.28588 2007 12 24 54458 -0.0917 0.2597 -0.28644 2007 12 25 54459 -0.0936 0.2619 -0.28704 2007 12 26 54460 -0.0954 0.2641 -0.28780 2007 12 27 54461 -0.0972 0.2664 -0.28876 2007 12 28 54462 -0.0990 0.2687 -0.28991 2007 12 29 54463 -0.1007 0.2710 -0.29119 2007 12 30 54464 -0.1023 0.2733 -0.29251 2007 12 31 54465 -0.1040 0.2757 -0.29379 2008 1 1 54466 -0.1056 0.2781 -0.29495 2008 1 2 54467 -0.1071 0.2805 -0.29597 2008 1 3 54468 -0.1086 0.2830 -0.29680 2008 1 4 54469 -0.1101 0.2854 -0.29745 2008 1 5 54470 -0.1116 0.2879 -0.29795 2008 1 6 54471 -0.1129 0.2904 -0.29833 2008 1 7 54472 -0.1143 0.2930 -0.29867 2008 1 8 54473 -0.1156 0.2955 -0.29905 2008 1 9 54474 -0.1169 0.2981 -0.29956 2008 1 10 54475 -0.1181 0.3007 -0.30025 2008 1 11 54476 -0.1193 0.3033 -0.30118 2008 1 12 54477 -0.1204 0.3059 -0.30235 2008 1 13 54478 -0.1215 0.3086 -0.30371 2008 1 14 54479 -0.1225 0.3112 -0.30518 2008 1 15 54480 -0.1235 0.3139 -0.30664 2008 1 16 54481 -0.1245 0.3166 -0.30797 2008 1 17 54482 -0.1254 0.3193 -0.30909 2008 1 18 54483 -0.1263 0.3220 -0.30995 2008 1 19 54484 -0.1271 0.3248 -0.31059 2008 1 20 54485 -0.1279 0.3275 -0.31109 2008 1 21 54486 -0.1286 0.3303 -0.31161 2008 1 22 54487 -0.1293 0.3331 -0.31225 2008 1 23 54488 -0.1299 0.3358 -0.31310 2008 1 24 54489 -0.1305 0.3386 -0.31418 2008 1 25 54490 -0.1310 0.3414 -0.31543 2008 1 26 54491 -0.1315 0.3443 -0.31678 2008 1 27 54492 -0.1320 0.3471 -0.31813 2008 1 28 54493 -0.1324 0.3499 -0.31939 2008 1 29 54494 -0.1327 0.3527 -0.32050 2008 1 30 54495 -0.1330 0.3556 -0.32144 2008 1 31 54496 -0.1333 0.3584 -0.32220 2008 2 1 54497 -0.1335 0.3613 -0.32278 2008 2 2 54498 -0.1336 0.3641 -0.32325 2008 2 3 54499 -0.1337 0.3670 -0.32365 2008 2 4 54500 -0.1338 0.3698 -0.32407 2008 2 5 54501 -0.1338 0.3727 -0.32460 2008 2 6 54502 -0.1338 0.3756 -0.32531 2008 2 7 54503 -0.1337 0.3784 -0.32626 2008 2 8 54504 -0.1335 0.3813 -0.32747 2008 2 9 54505 -0.1334 0.3841 -0.32890 2008 2 10 54506 -0.1331 0.3870 -0.33046 2008 2 11 54507 -0.1328 0.3898 -0.33203 2008 2 12 54508 -0.1325 0.3927 -0.33346 2008 2 13 54509 -0.1321 0.3955 -0.33465 2008 2 14 54510 -0.1317 0.3984 -0.33555 2008 2 15 54511 -0.1312 0.4012 -0.33617 2008 2 16 54512 -0.1307 0.4040 -0.33660 2008 2 17 54513 -0.1301 0.4068 -0.33693 2008 2 18 54514 -0.1295 0.4096 -0.33731 2008 2 19 54515 -0.1289 0.4124 -0.33780 2008 2 20 54516 -0.1282 0.4152 -0.33847 2008 2 21 54517 -0.1274 0.4180 -0.33931 2008 2 22 54518 -0.1266 0.4208 -0.34024 2008 2 23 54519 -0.1257 0.4235 -0.34121 2008 2 24 54520 -0.1248 0.4263 -0.34213 2008 2 25 54521 -0.1239 0.4290 -0.34294 2008 2 26 54522 -0.1229 0.4317 -0.34361 2008 2 27 54523 -0.1218 0.4344 -0.34415 2008 2 28 54524 -0.1208 0.4371 -0.34457 2008 2 29 54525 -0.1196 0.4398 -0.34493 2008 3 1 54526 -0.1184 0.4424 -0.34530 2008 3 2 54527 -0.1172 0.4450 -0.34575 2008 3 3 54528 -0.1159 0.4477 -0.34639 2008 3 4 54529 -0.1146 0.4503 -0.34730 2008 3 5 54530 -0.1133 0.4528 -0.34854 2008 3 6 54531 -0.1119 0.4554 -0.35016 2008 3 7 54532 -0.1104 0.4579 -0.35211 2008 3 8 54533 -0.1089 0.4604 -0.35431 2008 3 9 54534 -0.1074 0.4629 -0.35662 2008 3 10 54535 -0.1058 0.4654 -0.35890 2008 3 11 54536 -0.1042 0.4678 -0.36099 2008 3 12 54537 -0.1025 0.4703 -0.36283 2008 3 13 54538 -0.1008 0.4726 -0.36442 2008 3 14 54539 -0.0991 0.4750 -0.36582 2008 3 15 54540 -0.0973 0.4774 -0.36716 2008 3 16 54541 -0.0955 0.4797 -0.36855 2008 3 17 54542 -0.0936 0.4820 -0.37008 2008 3 18 54543 -0.0917 0.4842 -0.37179 2008 3 19 54544 -0.0898 0.4864 -0.37368 2008 3 20 54545 -0.0878 0.4887 -0.37569 2008 3 21 54546 -0.0858 0.4908 -0.37778 2008 3 22 54547 -0.0837 0.4930 -0.37986 2008 3 23 54548 -0.0817 0.4951 -0.38181 2008 3 24 54549 -0.0795 0.4972 -0.38361 2008 3 25 54550 -0.0774 0.4992 -0.38526 2008 3 26 54551 -0.0752 0.5012 -0.38666 2008 3 27 54552 -0.0729 0.5032 -0.38788 2008 3 28 54553 -0.0707 0.5051 -0.38899 2008 3 29 54554 -0.0684 0.5070 -0.39001 2008 3 30 54555 -0.0660 0.5089 -0.39098 2008 3 31 54556 -0.0637 0.5108 -0.39207 2008 4 1 54557 -0.0613 0.5126 -0.39328 2008 4 2 54558 -0.0588 0.5143 -0.39469 2008 4 3 54559 -0.0564 0.5161 -0.39634 2008 4 4 54560 -0.0539 0.5178 -0.39822 2008 4 5 54561 -0.0514 0.5194 -0.40023 2008 4 6 54562 -0.0488 0.5211 -0.40221 2008 4 7 54563 -0.0463 0.5226 -0.40411 2008 4 8 54564 -0.0437 0.5242 -0.40578 2008 4 9 54565 -0.0410 0.5257 -0.40719 2008 4 10 54566 -0.0384 0.5271 -0.40837 2008 4 11 54567 -0.0357 0.5286 -0.40943 2008 4 12 54568 -0.0330 0.5299 -0.41048 2008 4 13 54569 -0.0303 0.5313 -0.41155 2008 4 14 54570 -0.0275 0.5326 -0.41278 2008 4 15 54571 -0.0248 0.5338 -0.41419 2008 4 16 54572 -0.0220 0.5351 -0.41574 2008 4 17 54573 -0.0191 0.5362 -0.41735 2008 4 18 54574 -0.0163 0.5374 -0.41897 2008 4 19 54575 -0.0135 0.5384 -0.42052 2008 4 20 54576 -0.0106 0.5395 -0.42191 2008 4 21 54577 -0.0077 0.5405 -0.42315 2008 4 22 54578 -0.0048 0.5414 -0.42424 2008 4 23 54579 -0.0019 0.5424 -0.42510 2008 4 24 54580 0.0011 0.5432 -0.42578 2008 4 25 54581 0.0040 0.5440 -0.42642 2008 4 26 54582 0.0070 0.5448 -0.42708 2008 4 27 54583 0.0100 0.5456 -0.42774 2008 4 28 54584 0.0130 0.5462 -0.42862 2008 4 29 54585 0.0160 0.5469 -0.42975 2008 4 30 54586 0.0190 0.5475 -0.43112 2008 5 1 54587 0.0221 0.5480 -0.43276 2008 5 2 54588 0.0251 0.5485 -0.43456 2008 5 3 54589 0.0281 0.5490 -0.43641 2008 5 4 54590 0.0312 0.5494 -0.43818 2008 5 5 54591 0.0343 0.5498 -0.43967 2008 5 6 54592 0.0373 0.5501 -0.44088 2008 5 7 54593 0.0404 0.5504 -0.44176 2008 5 8 54594 0.0435 0.5506 -0.44238 2008 5 9 54595 0.0466 0.5508 -0.44293 2008 5 10 54596 0.0497 0.5509 -0.44358 2008 5 11 54597 0.0528 0.5510 -0.44437 2008 5 12 54598 0.0559 0.5510 -0.44533 2008 5 13 54599 0.0589 0.5510 -0.44642 2008 5 14 54600 0.0620 0.5509 -0.44759 2008 5 15 54601 0.0651 0.5508 -0.44872 2008 5 16 54602 0.0682 0.5507 -0.44974 2008 5 17 54603 0.0713 0.5505 -0.45059 2008 5 18 54604 0.0744 0.5502 -0.45125 2008 5 19 54605 0.0775 0.5499 -0.45176 2008 5 20 54606 0.0806 0.5496 -0.45206 2008 5 21 54607 0.0836 0.5492 -0.45217 2008 5 22 54608 0.0867 0.5488 -0.45213 2008 5 23 54609 0.0897 0.5483 -0.45200 2008 5 24 54610 0.0928 0.5478 -0.45191 2008 5 25 54611 0.0958 0.5472 -0.45191 2008 5 26 54612 0.0989 0.5466 -0.45205 2008 5 27 54613 0.1019 0.5459 -0.45248 2008 5 28 54614 0.1049 0.5452 -0.45315 2008 5 29 54615 0.1079 0.5444 -0.45403 2008 5 30 54616 0.1109 0.5436 -0.45506 2008 5 31 54617 0.1138 0.5428 -0.45599 2008 6 1 54618 0.1168 0.5419 -0.45682 2008 6 2 54619 0.1197 0.5409 -0.45740 2008 6 3 54620 0.1227 0.5400 -0.45769 2008 6 4 54621 0.1256 0.5389 -0.45777 2008 6 5 54622 0.1285 0.5378 -0.45773 2008 6 6 54623 0.1313 0.5367 -0.45779 2008 6 7 54624 0.1342 0.5356 -0.45800 2008 6 8 54625 0.1370 0.5344 -0.45838 2008 6 9 54626 0.1398 0.5331 -0.45889 2008 6 10 54627 0.1426 0.5318 -0.45946 2008 6 11 54628 0.1454 0.5305 -0.46005 2008 6 12 54629 0.1481 0.5291 -0.46059 2008 6 13 54630 0.1508 0.5277 -0.46101 2008 6 14 54631 0.1535 0.5262 -0.46129 2008 6 15 54632 0.1562 0.5247 -0.46145 2008 6 16 54633 0.1589 0.5232 -0.46141 2008 6 17 54634 0.1615 0.5216 -0.46122 2008 6 18 54635 0.1641 0.5200 -0.46093 2008 6 19 54636 0.1666 0.5183 -0.46056 2008 6 20 54637 0.1692 0.5166 -0.46019 2008 6 21 54638 0.1717 0.5149 -0.45988 2008 6 22 54639 0.1742 0.5131 -0.45972 2008 6 23 54640 0.1766 0.5113 -0.45974 2008 6 24 54641 0.1790 0.5094 -0.45997 2008 6 25 54642 0.1814 0.5075 -0.46038 2008 6 26 54643 0.1838 0.5056 -0.46091 2008 6 27 54644 0.1861 0.5036 -0.46150 2008 6 28 54645 0.1884 0.5016 -0.46206 2008 6 29 54646 0.1906 0.4996 -0.46256 2008 6 30 54647 0.1928 0.4975 -0.46287 2008 7 1 54648 0.1950 0.4954 -0.46294 2008 7 2 54649 0.1972 0.4933 -0.46287 2008 7 3 54650 0.1993 0.4911 -0.46281 2008 7 4 54651 0.2014 0.4889 -0.46289 2008 7 5 54652 0.2034 0.4867 -0.46315 2008 7 6 54653 0.2054 0.4844 -0.46355 2008 7 7 54654 0.2073 0.4821 -0.46403 2008 7 8 54655 0.2093 0.4798 -0.46456 2008 7 9 54656 0.2111 0.4774 -0.46502 2008 7 10 54657 0.2130 0.4751 -0.46537 2008 7 11 54658 0.2148 0.4726 -0.46558 2008 7 12 54659 0.2165 0.4702 -0.46554 2008 7 13 54660 0.2182 0.4677 -0.46522 2008 7 14 54661 0.2199 0.4652 -0.46474 2008 7 15 54662 0.2215 0.4627 -0.46412 2008 7 16 54663 0.2231 0.4602 -0.46341 2008 7 17 54664 0.2247 0.4576 -0.46271 2008 7 18 54665 0.2262 0.4550 -0.46211 2008 7 19 54666 0.2276 0.4524 -0.46170 2008 7 20 54667 0.2290 0.4498 -0.46149 2008 7 21 54668 0.2304 0.4471 -0.46147 2008 7 22 54669 0.2317 0.4444 -0.46166 2008 7 23 54670 0.2330 0.4417 -0.46196 2008 7 24 54671 0.2342 0.4390 -0.46228 2008 7 25 54672 0.2354 0.4363 -0.46256 2008 7 26 54673 0.2365 0.4335 -0.46272 2008 7 27 54674 0.2376 0.4308 -0.46271 2008 7 28 54675 0.2386 0.4280 -0.46254 2008 7 29 54676 0.2396 0.4252 -0.46215 2008 7 30 54677 0.2406 0.4223 -0.46170 2008 7 31 54678 0.2415 0.4195 -0.46135 2008 8 1 54679 0.2423 0.4166 -0.46122 2008 8 2 54680 0.2431 0.4138 -0.46133 2008 8 3 54681 0.2439 0.4109 -0.46164 2008 8 4 54682 0.2446 0.4080 -0.46206 2008 8 5 54683 0.2452 0.4051 -0.46250 2008 8 6 54684 0.2458 0.4022 -0.46284 2008 8 7 54685 0.2464 0.3993 -0.46298 2008 8 8 54686 0.2469 0.3964 -0.46292 2008 8 9 54687 0.2473 0.3934 -0.46267 2008 8 10 54688 0.2477 0.3905 -0.46224 2008 8 11 54689 0.2481 0.3876 -0.46175 2008 8 12 54690 0.2483 0.3846 -0.46124 2008 8 13 54691 0.2486 0.3817 -0.46073 2008 8 14 54692 0.2488 0.3787 -0.46032 2008 8 15 54693 0.2489 0.3757 -0.46006 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) 54309 -65.45 .36 -6.99 .13 54310 -65.51 .26 -6.89 .34 54311 -65.55 .26 -6.80 .34 54312 -65.59 .74 -6.73 .34 54313 -65.72 .25 -6.69 .34 54314 -66.02 .25 -6.68 .34 54315 -66.45 .25 -6.72 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54309 -0.034 0.143 -0.478 0.130 54310 -0.034 0.103 -0.489 0.340 54311 -0.044 0.103 -0.502 0.340 54312 -0.059 0.294 -0.503 0.340 54313 -0.073 0.099 -0.505 0.340 54314 -0.082 0.099 -0.500 0.340 54315 -0.082 0.099 -0.491 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 web site in section chapter 5.