BULLETIN B 136 02 June 1999 Contents described in the Explanatory Supplement, mailed with Bulletin B133 1 - EARTH ORIENTATION PARAMETERS (IERS evaluation). The values in this section are samplings of section 2 given at five-day intervals. Date MJD x y UT1R-UTC UT1R-TAI dPsi dEpsilon 1999 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. APR 1 51269 .02603 .24102 .616594 -31.383407 -44.1 -7.1 APR 6 51274 .01732 .23957 .609570 -31.390430 -45.1 -7.2 APR 11 51279 .01050 .24120 .602241 -31.397759 -43.7 -7.0 APR 16 51284 .00730 .24628 .595118 -31.404882 -44.1 -7.5 APR 21 51289 .00013 .24885 .588031 -31.411969 -43.8 -7.7 APR 26 51294 -.00710 .25187 .581197 -31.418803 -43.2 -7.4 MAY 1 51299 -.00934 .25786 .574196 -31.425804 -43.7 -7.5 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. MAY 6 51304 -.01586 .26031 .567619 -31.432381 -44.2 -8.1 MAY 11 51309 -.01900 .26436 .562354 -31.437646 -44.0 -8.0 MAY 16 51314 -.01904 .27165 .557105 -31.442895 -46.0 -8.0 MAY 21 51319 -.02060 .27749 .551468 -31.448532 -43.1 -7.8 MAY 26 51324 -.02222 .28105 .545500 -31.454500 -43.3 -7.2 MAY 31 51329 -.02483 .28424 .540249 -31.459751 -44.2 -7.9 JUN 5 51334 -.02813 .28817 .535210 -31.464790 -43.2 -8.0 JUN 10 51339 -.03124 .29226 .530418 -31.469582 -45.1 -7.3 JUN 15 51344 -.03411 .29623 .525909 -31.474091 -46.4 -8.1 JUN 20 51349 -.03671 .30015 .521729 -31.478272 -45.4 -7.4 JUN 25 51354 -.03903 .30405 .517876 -31.482124 -47.9 -7.4 JUN 30 51359 -.04107 .30793 .514351 -31.485649 -47.4 -7.7 JUL 5 51364 -.04282 .31175 .511131 -31.488869 -47.6 -7.3 JUL 10 51369 -.04430 .31553 .508183 -31.491818 -50.6 -7.6 JUL 15 51374 -.04552 .31923 .505463 -31.494537 -49.7 -7.5 JUL 20 51379 -.04647 .32285 .502911 -31.497089 -51.3 -7.0 JUL 25 51384 -.04717 .32638 .500481 -31.499519 -52.5 -7.5 JUL 30 51389 -.04762 .32979 .498108 -31.501892 -51.4 -7.3 Note. In UT1R, the effects of zonal tides with periods shorter than 35 days are removed; UT1-UT1R ( smaller than 0.0025s in absolute value ) should be added after quadratic interpolation of UT1R.Section 2 of this Bulletin gives the daily interpolation of x, y, UT1, duration of day, dPsi, and dEpsilon. IERS, B 136 (2) 2 - SMOOTHED VALUES OF X, Y, UT1, D, DPSI, DEPSILON (IERS EVALUATION) at one-day intervals. For smoothing characteristics, see Table2 in the explanatory supplement. The reference system is described in the 1997 IERS Annual Report. 1999 MJD x y UT1-UTC UT1-UT1R D dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" APR 1 51269 .02603 .24102 .616078 -.516 1.408 -44.1 -7.1 APR 2 51270 .02387 .24074 .614650 -.575 1.432 -44.6 -7.1 APR 3 51271 .02176 .24022 .613224 -.570 1.359 -45.0 -7.1 APR 4 51272 .01996 .23976 .611938 -.477 1.251 -45.2 -7.1 APR 5 51273 .01857 .23962 .610722 -.289 1.187 -45.3 -7.2 APR 6 51274 .01732 .23957 .609559 -.011 1.152 -45.1 -7.2 APR 7 51275 .01574 .23986 .608408 .335 1.134 -44.9 -7.1 APR 8 51276 .01373 .24031 .607276 .713 1.097 -44.5 -7.1 APR 9 51277 .01199 .24052 .606198 1.080 1.096 -44.2 -7.1 APR 10 51278 .01094 .24069 .605067 1.387 1.180 -43.9 -7.1 APR 11 51279 .01050 .24120 .603821 1.580 1.301 -43.7 -7.0 APR 12 51280 .01021 .24209 .602451 1.614 1.484 -43.7 -7.0 APR 13 51281 .00961 .24303 .600848 1.457 1.718 -43.8 -7.1 APR 14 51282 .00883 .24384 .599022 1.110 1.870 -44.0 -7.2 APR 15 51283 .00802 .24491 .597131 .619 1.934 -44.1 -7.3 APR 16 51284 .00730 .24628 .595189 .070 1.943 -44.1 -7.5 APR 17 51285 .00636 .24756 .593279 -.431 1.839 -44.1 -7.6 APR 18 51286 .00482 .24845 .591535 -.798 1.680 -44.1 -7.8 APR 19 51287 .00298 .24889 .589924 -.985 1.522 -43.9 -7.9 APR 20 51288 .00142 .24893 .588480 -1.000 1.382 -43.8 -7.8 APR 21 51289 .00013 .24885 .587139 -.892 1.293 -43.8 -7.7 APR 22 51290 -.00109 .24895 .585871 -.730 1.235 -43.6 -7.6 APR 23 51291 -.00230 .24936 .584652 -.575 1.234 -43.5 -7.5 APR 24 51292 -.00363 .25012 .583393 -.473 1.279 -43.3 -7.3 APR 25 51293 -.00534 .25101 .582092 -.441 1.338 -43.2 -7.3 APR 26 51294 -.00710 .25187 .580722 -.475 1.412 -43.2 -7.4 APR 27 51295 -.00814 .25278 .579278 -.552 1.470 -43.2 -7.4 APR 28 51296 -.00844 .25377 .577793 -.641 1.481 -43.4 -7.5 APR 29 51297 -.00853 .25500 .576327 -.705 1.447 -43.5 -7.5 APR 30 51298 -.00874 .25648 .574909 -.713 1.389 -43.6 -7.4 MAY 1 51299 -.00934 .25786 .573556 -.640 1.307 -43.7 -7.5 MAY 2 51300 -.01050 .25885 .572297 -.474 1.198 -43.7 -7.5 MAY 3 51301 -.01197 .25953 .571158 -.213 1.075 -43.8 -7.5 MAY 4 51302 -.01359 .25993 .570139 .126 .940 -44.0 -7.7 MAY 5 51303 -.01496 .25998 .569267 .515 .796 -44.1 -7.9 MAY 6 51304 -.01586 .26031 .568531 .912 .726 -44.2 -8.1 MAY 7 51305 -.01654 .26107 .567799 1.271 .756 -44.2 -8.2 MAY 8 51306 -.01721 .26189 .567004 1.543 .831 -44.1 -8.3 MAY 9 51307 -.01801 .26274 .566122 1.682 .980 -44.0 -8.3 MAY 10 51308 -.01864 .26346 .565034 1.652 1.166 -43.8 -8.1 MAY 11 51309 -.01900 .26436 .563788 1.434 1.312 -44.0 -8.0 MAY 12 51310 -.01917 .26568 .562421 1.046 1.456 -44.1 -7.9 MAY 13 51311 -.01933 .26712 .560900 .543 1.577 -44.7 -7.9 MAY 14 51312 -.01935 .26860 .559301 .018 1.587 -45.2 -7.9 MAY 15 51313 -.01908 .27010 .557758 -.432 1.472 -45.7 -7.9 MAY 16 51314 -.01904 .27165 .556374 -.731 1.288 -46.0 -8.0 MAY 17 51315 -.01951 .27327 .555180 -.855 1.128 -46.0 -8.0 MAY 18 51316 -.01999 .27483 .554102 -.833 1.045 -45.7 -8.0 MAY 19 51317 -.02029 .27612 .553065 -.729 1.029 -45.0 -8.0 MAY 20 51318 -.02049 .27691 .552023 -.612 1.059 -44.1 -7.9 MAY 21 51319 -.02060 .27749 .550934 -.534 1.135 -43.1 -7.8 MAY 22 51320 -.02046 .27827 .549750 -.521 1.242 -42.4 -7.5 MAY 23 51321 -.02044 .27911 .548455 -.570 1.247 -42.1 -7.3 MAY 24 51322 -.02078 .27974 .547164 -.662 1.117 -42.0 -7.1 MAY 25 51323 -.02127 .28034 .545871 -.766 1.423 -42.6 -7.1 MAY 26 51324 -.02222 .28105 .544651 -.849 1.121 -43.3 -7.2 MAY 27 51325 -.02304 .28157 .543536 -.879 1.100 -43.7 -7.3 MAY 28 51326 -.02371 .28184 .542501 -.832 .996 -44.1 -7.4 MAY 29 51327 -.02404 .28319 .541597 -.692 .850 -44.3 -7.7 MAY 30 51328 -.02439 .28321 .540816 -.457 .723 -44.3 -7.8 MAY 31 51329 -.02483 .28424 .540112 -.137 .651 -44.2 -7.9 IERS, B 136 (3) 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 1999 MJD x y UT1-UTC dPsi dEps x y UT1 dPsi dEps (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" APR 1 51269 .02609 .24105 .616077 -44.03 -7.04 .12 .13 .04 .32 .17 APR 6 51274 .01739 .23954 .609556 -44.67 -6.77 .11 .13 .04 .33 .18 APR 11 51279 .01036 .24093 .603822 - - .14 .15 .04 - - APR 16 51284 .00764 .24652 .595189 -43.23 -6.57 .15 .16 .05 .48 .23 APR 21 51289 .00017 .24886 .587136 -43.80 -7.76 .12 .13 .04 .21 .12 APR 26 51294 -.00716 .25183 .580719 -43.51 -7.60 .13 .13 .04 .45 .21 MAY 1 51299 -.00931 .25794 .573555 - - .12 .14 .05 - - MAY 6 51304 -.01605 .26001 .568531 -44.75 -8.68 .13 .12 .04 .22 .14 MAY 11 51309 -.01916 .26417 .563789 -44.40 -8.47 .11 .13 .04 .33 .19 MAY 16 51314 -.01892 .27167 .556377 - - .13 .14 .04 - - MAY 21 51319 -.02065 .27742 .550935 -43.24 -7.91 .11 .12 .03 .36 .21 MAY 26 51324 -.02215 .28112 .544666 - - .14 .16 .07 - - MAY 31 51329 -.02510 .28396 .000000 - - .16 .19 - - - 4 - DURATION OF THE DAY AND ANGULAR VELOCITY OF THE EARTH (IERS evaluation). The data of this section are smoothed, with the same characteristics as UT1R in section 1. They are corrected for the effects of zonal tides with periods up to 35 days. Section 2 gives the daily interpolation of D. Date (0h UTC) DR OmegaR 1999 MJD s (microrad/s) APR 1 51269 .00133 72.921 15034 APR 6 51274 .00147 15022 APR 11 51279 .00143 15026 APR 16 51284 .00141 15028 APR 21 51289 .00144 15025 APR 26 51294 .00136 15032 MAY 1 51299 .00143 15026 5 - INFORMATION ON TIME SCALES All information concerning time scales : announcements of the leap seconds (Bulletin C) and of the value of DUT1 (Bulletin D) can be found in our web/ftp site : World Wide Web : http://hpiers.obspm.fr Anonymous ftp : hpiers.obspm.fr or 145.238.100.28 IERS, B 136 (4) 6 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES This section gives the average precision of the individual series contri- buting to the combination and their average agreement with it. The periods covered start at the beginning of the first month in Section 1 and end with the last available value in the individual series considered. The complete list of measurements is available in the electronic-mailed version of Bulletin B in section 7. Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dPsi, dEpsi. -------------------------------------------------------------------------------- EOP series Mean formal uncertainty Periods covered Weighted RMS agreement with Bulletin B -------------------------------------------------------------------------------- x y UT D dPsi dEps Data Number VLBI EOP(SPBU) 99 R 01 - - .15 - - - 39 51269.69 to 51322.72 - - .19 - - - EOP(OPA) 98 R 01 - - .16 - - - 35 51269.69 to 51322.72 - - .33 - - - EOP(IAA) 98 R 01 .09 .08 .04 - .18 .07 7 51275.25 to 51317.25 .28 .19 .08 - .41 .20 EOP(USNO) 98 R 10 .12 .09 .05 .18 .23 .09 9 51275.25 to 51317.25 .27 .09 .08 .26 .03 .03 EOP(USNO) 98 R 11 - - .15 - - - 40 51269.69 to 51322.72 - - .10 - - - GPS EOP(CODE) 98 P 01 .02 .02 - .01 - - 52 51269.50 to 51320.50 .13 .12 - .17 - - EOP(EMR) 96 P 03 .05 .05 - .09 - - 60 51269.50 to 51328.50 .23 .18 - .30 - - EOP(ESOC) 96 P 01 .04 .04 - .04 - - 52 51269.50 to 51320.50 .29 .13 - .20 - - EOP(GFZ) 96 P 02 .01 .01 - .01 - - 52 51269.50 to 51320.50 .12 .11 - .26 - - EOP(JPL) 96 P 03 .06 .06 - .20 - - 52 51269.50 to 51320.50 .17 .09 - .30 - - EOP(NOAA) 96 P 01 .03 .03 - .18 - - 53 51269.50 to 51321.50 .16 1.16 - .47 - - EOP(SIO) 96 P 01 .05 .05 - .17 - - 45 51269.50 to 51313.50 .14 .10 - .31 - - EOP(IGS) 95 P 02 .04 .05 .13 .09 - - 45 51269.50 to 51313.50 .10 .05 .29 .18 - - EOP(IGS) 96 P 02 .08 .09 .34 .12 - - 60 51269.50 to 51328.50 .15 .12 .69 .27 - - EOP(IERS) 97 P 01 .06 .07 .25 .14 - - 60 51269.50 to 51328.50 .02 .03 .32 .04 - - SLR EOP(CGS) 97 L 02 .50 .55 1.27 - - - 54 51271.00 to 51325.00 1.15 1.09 2.34 - - - EOP(CSR) 95 L 01 .40 .44 .83 - - - 19 51269.89 to 51323.08 .39 .46 .69 - - - EOP(DUT) 98 L 01 .11 .12 - - - - 19 51270.00 to 51324.00 .25 .36 - - - - EOP(IAA) 98 L 02 .05 .05 .03 .03 - - 60 51269.00 to 51328.00 .17 .23 .73 .37 - - EOP(MCC) 97 L 01 .07 .07 - .09 - - 49 51269.00 to 51317.00 .22 .25 - .32 - - Bulletin A EOP(NEOS) 97 C 01 .40 .40 .51 - - - 61 51269.00 to 51329.00 .11 .11 .21 - - - 7 - INDIVIDUAL SERIES OF EARTH ORIENTATION PARAMETERS The series listed hereafter,obtained by the IERS Operational Centres, have been used for the evaluations of Section 1. They are described in IERS Annual Report or in the IERS Technical Notes . 7-a - Very Long Base Radio Interferometry - EOP(SPBU) 99 R 01 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998/99 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 1 51269.69 615088 18 APR 2 51270.69 613646 10 APR 3 51271.68 612319 12 APR 3 51271.85 612134 15 APR 5 51273.68 609920 17 APR 6 51274.68 608786 17 APR 9 51277.67 605461 22 APR 10 51278.66 604253 12 APR 10 51278.82 604063 10 APR 12 51280.66 601400 24 APR 15 51283.65 595861 15 APR 16 51284.65 593917 21 APR 17 51285.64 592119 18 APR 17 51285.81 591881 8 APR 19 51287.64 588975 22 APR 20 51288.64 587623 12 APR 22 51290.63 585097 14 APR 23 51291.63 583861 18 APR 24 51292.63 582596 13 APR 24 51292.79 582364 15 APR 26 51294.62 579822 10 MAY 1 51299.61 572776 22 MAY 1 51299.77 572567 15 MAY 3 51301.77 570363 13 MAY 6 51304.76 567977 18 MAY 7 51305.76 567224 13 MAY 8 51306.75 566353 9 MAY 8 51306.92 566216 16 MAY 10 51308.75 564125 18 MAY 13 51311.75 559735 14 MAY 14 51312.74 558167 18 MAY 15 51313.74 556757 15 MAY 15 51313.91 556500 11 MAY 17 51315.73 554403 15 MAY 20 51318.73 551287 28 MAY 21 51319.72 550093 18 MAY 22 51320.72 548807 11 MAY 22 51320.89 548633 10 MAY 24 51322.72 546253 9 7-b - Very Long Base Radio Interferometry - EOP(OPA) 98 R 01 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998/99 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 1 51269.69 615111 15 APR 2 51270.69 613676 16 APR 3 51271.68 612338 16 APR 3 51271.85 612160 16 APR 5 51273.68 609959 15 APR 6 51274.68 608843 15 APR 10 51278.66 604284 16 APR 10 51278.82 604095 18 APR 12 51280.66 601423 16 APR 15 51283.65 595872 15 APR 16 51284.65 593928 18 APR 17 51285.64 592150 16 APR 17 51285.80 591918 18 APR 19 51287.65 589015 24 APR 20 51288.64 587680 15 APR 22 51290.64 585152 16 APR 23 51291.63 583874 16 APR 24 51292.63 582602 18 APR 24 51292.79 582374 18 APR 26 51294.62 579845 15 MAY 1 51299.61 572810 16 MAY 1 51299.77 572623 16 MAY 3 51301.77 570395 16 MAY 6 51304.76 568000 17 MAY 7 51305.76 567248 16 MAY 8 51306.75 566404 15 MAY 10 51308.75 564154 16 MAY 13 51311.75 559736 17 MAY 14 51312.74 558180 17 MAY 15 51313.74 556770 17 MAY 17 51315.74 554426 17 MAY 20 51318.73 551280 17 MAY 21 51319.73 550099 17 MAY 22 51320.72 548836 11 MAY 24 51322.72 546259 12 7-c - Very Long Base Radio Interferometry - EOP(IAA) 98 R 01 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998/99 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 7 51275.25 1528 23999 608126 -4467 -714 7 7 3 15 6 APR 14 51282.25 821 24419 598550 -4375 -743 12 12 6 27 10 APR 21 51289.25 -32 24889 586817 -4385 -771 7 6 3 13 5 APR 28 51296.25 -827 25405 577444 -4393 -750 10 9 5 20 8 MAY 5 51303.25 -1505 26016 569090 -4401 -782 9 8 4 18 7 MAY 12 51310.25 -1929 26585 562066 -4368 -760 8 8 4 16 7 MAY 19 51317.25 -2065 27604 552826 -4433 -771 11 9 5 21 8 7-d - Very Long Base Radio Interferometry - EOP(USNO) 98 R 00 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998/99 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 7 51275.25 1547 23986 608103 -4472 -720 10 8 4 22 9 APR 14 51282.25 870 24382 598539 -4402 -724 12 10 7 25 9 APR 20 51288.08 168 24883 588336 -4375 -787 12 7 5 20 8 APR 21 51289.25 -11 24874 586791 -4365 -773 10 7 4 18 8 APR 28 51296.25 -789 25397 577408 -4331 -760 14 12 7 34 11 MAY 4 51302.08 -1324 25984 570051 -4392 -778 14 7 6 18 10 MAY 5 51303.25 -1503 25970 569061 -4411 -805 12 9 5 23 10 MAY 12 51310.25 -1917 26595 562040 -4418 -793 11 9 5 23 9 MAY 19 51317.25 -2009 27637 552796 -4474 -801 12 9 5 25 10 7-e - Very Long Base Radio Interferometry - EOP(USNO) 98 R 01 Units : 0.00001" for x,y , 0.000001s for UT1 ,0.00001" for dPsi,dEpsi. Date Uncertainties 1998/99 MJD x y UT1-UTC dPsi dEpsi x y UT1-UTCdPsi dEpsi APR 1 51269.69 615092 17 APR 2 51270.69 613652 12 APR 3 51271.68 612325 13 APR 3 51271.85 612134 14 APR 5 51273.68 609918 18 APR 6 51274.68 608775 16 APR 9 51277.67 605448 16 APR 10 51278.66 604249 11 APR 10 51278.82 604044 13 APR 12 51280.66 601414 17 APR 15 51283.65 595862 15 APR 16 51284.65 593924 21 APR 17 51285.64 592114 17 APR 17 51285.81 591878 15 APR 19 51287.64 588977 18 APR 20 51288.64 587614 12 APR 22 51290.63 585097 14 APR 23 51291.63 583857 20 APR 24 51292.63 582594 13 APR 24 51292.79 582359 14 APR 26 51294.62 579824 12 APR 30 51298.61 574066 21 MAY 1 51299.61 572782 23 MAY 1 51299.77 572567 15 MAY 3 51301.77 570361 12 MAY 6 51304.76 567976 18 MAY 7 51305.76 567199 13 MAY 8 51306.75 566351 11 MAY 8 51306.92 566197 15 MAY 10 51308.75 564110 18 MAY 13 51311.75 559703 11 MAY 14 51312.74 558140 19 MAY 15 51313.74 556727 13 MAY 15 51313.91 556469 16 MAY 17 51315.73 554376 15 MAY 20 51318.73 551232 14 MAY 21 51319.72 550088 11 MAY 22 51320.72 548807 10 MAY 22 51320.89 548607 9 MAY 24 51322.72 546245 7 7-f - Lunar Laser Ranging - EOP(UTXMO)96 M 01 (UNIT : 0.000001s for UT0-UTC) Date Uncertainties 1998/99 MJD UT0-UTC UTO-UTC STATION REFLECTOR 7 -g - EOP(CODE) 98 P 01 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25181 240956 6182100 14186 16 15 26 15 APR 2 51270.50 23148 240497 6167722 14019 15 15 24 14 APR 3 51271.50 21187 240092 6153903 13363 15 15 24 13 APR 4 51272.50 19588 239738 6140975 12446 16 15 25 14 APR 5 51273.50 18259 239652 6128798 11747 17 16 26 15 APR 6 51274.50 16801 239774 6117034 11462 17 17 26 15 APR 7 51275.50 14934 240091 6105732 11187 18 17 26 15 APR 8 51276.50 13224 240409 6094790 11055 16 16 25 14 APR 9 51277.50 11870 240608 6083620 11538 16 16 25 14 APR 10 51278.50 11114 240967 6071717 12530 16 16 25 14 APR 11 51279.50 10652 241673 6058457 14115 16 15 25 14 APR 12 51280.50 10129 242590 6043184 16253 16 15 25 14 APR 13 51281.50 9456 243589 6025913 18191 18 15 25 14 APR 14 51282.50 8629 244526 6007313 19231 18 16 26 15 APR 15 51283.50 7838 245663 5988049 19424 18 16 27 16 APR 16 51284.50 6935 246889 5968897 18792 18 17 28 16 APR 17 51285.50 5710 247986 5950457 17679 18 17 28 16 APR 18 51286.50 4147 248724 5933384 16150 18 16 28 16 APR 19 51287.50 2472 248960 5917828 14735 17 16 27 16 APR 20 51288.50 1006 249002 5903970 13323 18 16 29 17 APR 21 51289.50 -237 248943 5891226 12556 16 15 29 17 APR 22 51290.50 -1332 249165 5878908 12430 16 15 28 17 APR 23 51291.50 -2678 249691 5866421 12788 16 15 28 16 APR 24 51292.50 -4102 250492 5853356 13425 15 14 29 18 APR 25 51293.50 -5749 251405 5839700 13966 15 15 30 18 APR 26 51294.50 -7022 252289 5825399 14482 16 15 31 19 APR 27 51295.50 -7784 253357 5810353 15059 15 15 31 19 APR 28 51296.50 -8077 254617 5795034 15155 16 15 30 18 APR 29 51297.50 -8192 255955 5780130 14587 15 14 30 18 APR 30 51298.50 -8715 257259 5765976 13726 15 15 29 17 MAY 1 51299.50 -9634 258387 5752850 12646 15 14 28 17 MAY 2 51300.50 -11006 259259 5740928 11461 15 15 28 17 MAY 3 51301.50 -12522 259787 5730302 10259 16 15 28 17 MAY 4 51302.50 -13955 260035 5721361 8739 17 16 28 16 MAY 5 51303.50 -15108 260268 5713722 7652 16 16 26 15 MAY 6 51304.50 -15914 260761 5706595 7377 17 16 25 14 MAY 7 51305.50 -16584 261466 5699231 7857 17 16 24 13 MAY 8 51306.50 -17290 262222 5690964 8986 16 16 23 13 MAY 9 51307.50 -18014 262970 5681345 10507 18 16 23 12 MAY 10 51308.50 -18508 263833 5669940 12345 18 16 22 12 MAY 11 51309.50 -18788 265081 5656496 14253 18 15 21 11 MAY 12 51310.50 -18940 266432 5641197 15770 16 15 20 10 MAY 13 51311.50 -18951 267880 5625045 16140 15 15 19 9 MAY 14 51312.50 -18877 269351 5608889 15661 15 14 20 10 MAY 15 51313.50 -18789 270884 5593837 14237 15 14 19 9 MAY 16 51314.50 -19005 272560 5580589 12379 15 14 19 10 MAY 17 51315.50 -19423 274111 5569128 10792 16 14 20 10 MAY 18 51316.50 -19836 275526 5558493 10309 17 15 21 10 MAY 19 51317.50 -20149 276549 5547950 10559 17 15 21 10 MAY 20 51318.50 -20278 277303 5537088 11112 16 15 21 10 MAY 21 51319.50 -20245 277922 5525422 12004 17 15 20 10 MAY 22 51320.50 -20189 278616 5512975 12746 16 15 20 10 7 -h - EOP(EMR) 96 P 03 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 24912 240803 5988099 14673 42 42 203 58 APR 2 51270.50 22853 240636 5974107 13707 42 42 202 58 APR 3 51271.50 20976 239920 5960612 13393 42 43 202 56 APR 4 51272.50 19567 240049 5947790 12747 43 44 202 58 APR 5 51273.50 18151 239669 5935876 11716 42 43 202 54 APR 6 51274.50 16974 239823 5924441 11518 43 45 202 56 APR 7 51275.50 15221 240363 5913142 11272 44 45 201 58 APR 8 51276.50 13013 240697 5902118 10707 45 45 201 61 APR 9 51277.50 11763 240845 5891095 11429 43 44 210 60 APR 10 51278.50 11242 240980 5879518 12026 44 44 213 59 APR 11 51279.50 10800 241725 5866495 14163 43 44 209 59 APR 12 51280.50 10358 242903 5851568 16134 43 43 205 57 APR 13 51281.50 9594 243570 5834410 17919 43 43 202 55 APR 14 51282.50 8714 244630 5815880 19210 43 43 199 55 APR 15 51283.50 7955 245656 5796987 18781 43 44 198 57 APR 16 51284.50 7153 247255 5777561 18866 45 46 196 63 APR 17 51285.50 6028 247974 5759807 17528 44 45 199 60 APR 18 51286.50 4249 248834 5742548 16425 41 42 195 52 APR 19 51287.50 2547 249083 5727662 14348 41 42 192 52 APR 20 51288.50 1043 248844 5713501 13506 41 43 190 54 APR 21 51289.50 -149 249098 5700692 12562 41 41 191 51 APR 22 51290.50 -1291 249365 5688391 12786 42 43 189 55 APR 23 51291.50 -2397 249908 5675691 12727 42 42 188 55 APR 24 51292.50 -4194 250859 5662379 13400 42 42 186 56 APR 25 51293.50 -6179 251616 5648799 14160 49 49 190 74 APR 26 51294.50 -7440 252395 5634659 13979 49 48 192 75 APR 27 51295.50 -8112 253223 5620375 14658 46 47 191 68 APR 28 51296.50 -8389 254551 5605336 14978 47 49 192 70 APR 29 51297.50 -8468 255746 5590946 14166 43 44 191 62 APR 30 51298.50 -8745 257197 5577045 13604 46 45 190 62 MAY 1 51299.50 -9680 258310 5564196 12283 43 43 189 57 MAY 2 51300.50 -11175 259316 5552240 11666 43 43 191 60 MAY 3 51301.50 -12494 259919 5541638 10149 43 43 189 58 MAY 4 51302.50 -14195 260113 5532070 8830 42 42 188 54 MAY 5 51303.50 -15167 260120 5524240 7356 43 43 188 57 MAY 6 51304.50 -15966 260784 5517028 7009 43 43 190 58 MAY 7 51305.50 -16677 261513 5509818 7898 42 43 190 57 MAY 8 51306.50 -17353 262394 5501349 8809 43 44 189 59 MAY 9 51307.50 -18287 263227 5491627 10452 46 46 189 72 MAY 10 51308.50 -18690 263722 5480166 11637 42 43 190 55 MAY 11 51309.50 -19073 265028 5467463 13990 42 43 188 54 MAY 12 51310.50 -19178 266395 5452651 15322 42 43 186 55 MAY 13 51311.50 -19246 267751 5437013 15745 43 44 185 56 MAY 14 51312.50 -19072 269240 5421268 15010 41 43 184 56 MAY 15 51313.50 -18725 270695 5406629 13602 43 44 184 60 MAY 16 51314.50 -18862 272389 5393514 11955 41 42 182 56 MAY 17 51315.50 -19324 274131 5382249 10446 42 44 182 57 MAY 18 51316.50 -19796 275531 5372028 9922 41 43 182 55 MAY 19 51317.50 -20176 276334 5361425 10272 41 43 182 55 MAY 20 51318.50 -20064 277145 5350725 10708 42 45 182 60 MAY 21 51319.50 -20151 277892 5339388 11705 41 44 181 58 MAY 22 51320.50 -20147 278532 5327017 12531 41 42 182 55 MAY 23 51321.50 -20466 279869 5355378 11310 87 91 622 1169 MAY 24 51322.50 -20716 280354 5344406 13031 88 88 223 127 MAY 25 51323.50 -21544 281200 5331442 12851 92 96 223 134 MAY 26 51324.50 -22730 281629 5319364 10882 98 100 223 149 MAY 27 51325.50 -22943 281998 5308728 10517 81 86 222 126 MAY 28 51326.50 -23421 282612 5298976 9251 88 90 230 146 MAY 29 51327.50 -23969 283413 5290719 7756 76 78 229 114 MAY 30 51328.50 -24418 284050 5283182 6881 87 90 229 153 MAY 31 51329.50 -24935 284642 5276525 6460 99 108 229 174 7 -i - EOP(ESOC) 96 P 01 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25260 240701 6154041 14517 38 42 76 65 APR 2 51270.50 23172 240734 6140448 13504 32 36 65 52 APR 3 51271.50 21118 240123 6126699 13202 35 38 64 54 APR 4 51272.50 19638 239801 6113840 12120 33 36 64 51 APR 5 51273.50 18190 239262 6101477 11646 36 40 62 50 APR 6 51274.50 16905 239638 6089778 11243 35 37 63 52 APR 7 51275.50 14938 240093 6078279 11042 36 39 59 50 APR 8 51276.50 13087 240522 6067288 10423 35 39 60 51 APR 9 51277.50 11599 240711 6055668 11264 40 44 70 60 APR 10 51278.50 11057 241016 6043936 11728 43 47 74 70 APR 11 51279.50 10524 241833 6030699 13801 37 40 62 56 APR 12 51280.50 10276 242698 6014775 16050 34 35 63 50 APR 13 51281.50 9726 243518 5996546 18108 33 36 66 51 APR 14 51282.50 8622 244612 5979598 19005 35 38 68 55 APR 15 51283.50 7968 245839 5961891 19218 38 43 71 61 APR 16 51284.50 6940 247120 5942729 18742 41 44 66 63 APR 17 51285.50 6149 247873 5924601 17598 42 47 73 67 APR 18 51286.50 4369 248785 5908012 15975 28 29 57 26 APR 19 51287.50 2551 248998 5893019 14361 25 26 53 22 APR 20 51288.50 930 249120 5879095 13009 32 31 62 28 APR 21 51289.50 -80 249166 5865960 12279 114 113 231 104 APR 22 51290.50 -1416 249227 5853293 11814 52 53 107 47 APR 23 51291.50 -2269 249835 5840358 12483 25 25 52 22 APR 24 51292.50 -4140 250782 5827280 12840 23 23 47 19 APR 25 51293.50 -5903 251505 5814150 13928 43 47 10 47 APR 26 51294.50 -7270 252390 5800246 13881 41 45 29 42 APR 27 51295.50 -7760 253240 5786005 14602 40 44 44 40 APR 28 51296.50 -7890 254403 5771448 14511 40 45 54 41 APR 29 51297.50 -8060 255809 5757089 14205 39 44 63 38 APR 30 51298.50 -8325 257165 5743391 13192 39 44 70 37 MAY 1 51299.50 -9101 258289 5730687 12216 41 46 76 39 MAY 2 51300.50 -10731 259452 5717300 11070 38 39 10 39 MAY 3 51301.50 -12119 259935 5706780 9969 35 36 25 35 MAY 4 51302.50 -13848 260143 5697640 8312 35 36 38 36 MAY 5 51303.50 -14959 260333 5689865 7237 36 36 48 37 MAY 6 51304.50 -15742 260852 5682921 6653 36 36 57 37 MAY 7 51305.50 -16292 261655 5675634 7921 36 37 64 38 MAY 8 51306.50 -17129 262626 5667321 8706 39 40 71 41 MAY 9 51307.50 -17954 263527 5655950 10485 37 36 10 39 MAY 10 51308.50 -18511 264103 5644737 11941 34 33 25 36 MAY 11 51309.50 -18805 265177 5631822 13890 33 33 39 35 MAY 12 51310.50 -18897 266662 5617174 15404 33 33 47 35 MAY 13 51311.50 -18784 268149 5601481 15981 33 32 54 33 MAY 14 51312.50 -18638 269546 5585886 15210 33 32 60 32 MAY 15 51313.50 -18454 271010 5571402 13757 35 35 66 35 MAY 16 51314.50 -18612 272413 5558000 11883 38 41 10 37 MAY 17 51315.50 -19076 274106 5546842 10432 36 39 23 32 MAY 18 51316.50 -19549 275726 5536570 10114 36 39 35 33 MAY 19 51317.50 -19941 276655 5526138 10751 36 38 43 31 MAY 20 51318.50 -20096 277277 5515362 10801 36 38 50 30 MAY 21 51319.50 -19984 277945 5504138 11645 35 38 55 30 MAY 22 51320.50 -19945 278561 5491974 12683 37 40 60 33 7 -j - EOP(GFZ) 96 P 02 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25335 240788 6153775 14509 8 9 9 9 APR 2 51270.50 23101 240532 6139840 13980 8 9 9 9 APR 3 51271.50 21144 239864 6126384 13791 10 11 13 13 APR 4 51272.50 19571 239628 6112986 12748 9 10 11 11 APR 5 51273.50 18340 239412 6100426 12124 8 9 9 9 APR 6 51274.50 16990 239573 6088341 11808 8 9 9 9 APR 7 51275.50 15111 240076 6076548 11470 8 9 9 9 APR 8 51276.50 13115 240377 6065106 11109 8 9 9 9 APR 9 51277.50 11682 240528 6053503 11739 9 9 10 10 APR 10 51278.50 10874 240548 6039593 12610 9 9 6 6 APR 11 51279.50 10773 241447 6026198 14249 8 9 7 7 APR 12 51280.50 10217 242525 6010762 16654 8 9 8 8 APR 13 51281.50 9590 243253 5993236 18360 9 9 7 7 APR 14 51282.50 8709 244307 5974194 19610 9 9 6 6 APR 15 51283.50 8002 245436 5954583 19442 9 9 6 6 APR 16 51284.50 7098 247008 5935221 19109 9 9 8 8 APR 17 51285.50 6007 248212 5923887 17716 9 9 12 12 APR 18 51286.50 4215 248748 5906909 16433 7 7 9 9 APR 19 51287.50 2501 248932 5891426 14608 7 7 7 7 APR 20 51288.50 1054 248831 5877511 13565 7 7 7 7 APR 21 51289.50 -120 248762 5864640 12440 7 7 7 7 APR 22 51290.50 -1375 248967 5852438 12206 7 7 7 7 APR 23 51291.50 -2539 249588 5840108 12635 7 7 7 7 APR 24 51292.50 -4251 250483 5827786 13037 9 9 11 11 APR 25 51293.50 -5981 251405 5814080 14008 8 8 13 13 APR 26 51294.50 -7422 252300 5799976 14306 8 8 10 10 APR 27 51295.50 -8123 253237 5785371 14920 7 7 9 9 APR 28 51296.50 -8162 254342 5770437 15044 7 8 10 10 APR 29 51297.50 -8315 255729 5755889 14277 7 7 8 8 APR 30 51298.50 -8644 257231 5741949 13732 7 7 8 8 MAY 1 51299.50 -9524 258411 5728898 12362 11 11 14 14 MAY 2 51300.50 -10882 259178 5717112 11530 9 9 11 11 MAY 3 51301.50 -12463 259721 5706341 10254 9 9 9 9 MAY 4 51302.50 -14094 259955 5697112 8783 9 9 9 9 MAY 5 51303.50 -15143 260058 5689299 7264 9 9 9 9 MAY 6 51304.50 -15885 260598 5682423 6826 9 9 9 9 MAY 7 51305.50 -16481 261400 5675266 7894 9 9 8 8 MAY 8 51306.50 -17292 262447 5665615 8650 12 12 15 15 MAY 9 51307.50 -18036 263188 5656378 10195 10 10 12 12 MAY 10 51308.50 -18508 263951 5645481 11889 9 10 11 11 MAY 11 51309.50 -18815 265091 5632554 13923 9 9 10 10 MAY 12 51310.50 -18933 266518 5617834 15436 9 9 10 10 MAY 13 51311.50 -19041 267994 5601991 16063 9 9 10 10 MAY 14 51312.50 -18894 269407 5586293 15499 9 9 9 9 MAY 15 51313.50 -18630 270776 5570897 14174 11 11 13 13 MAY 16 51314.50 -18920 272423 5557790 12051 9 9 10 10 MAY 17 51315.50 -19523 274030 5546568 10512 8 8 9 9 MAY 18 51316.50 -19856 275445 5536242 10145 8 8 8 8 MAY 19 51317.50 -20054 276405 5525813 10825 8 8 8 8 MAY 20 51318.50 -20277 277058 5515006 11079 8 8 9 9 MAY 21 51319.50 -20332 277773 5503504 11938 8 8 8 8 MAY 22 51320.50 -20298 278551 5491165 12809 9 9 10 10 7 -k - EOP(JPL) 96 P 03 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25345 240805 6015382 14449 51 56 235 235 APR 2 51270.50 23077 240523 6001168 13936 51 52 225 225 APR 3 51271.50 21067 239875 5987447 13480 54 54 226 226 APR 4 51272.50 19501 239606 5974488 12443 61 60 226 226 APR 5 51273.50 18196 239561 5962463 11629 57 58 223 223 APR 6 51274.50 16921 239513 5951003 11341 65 66 231 231 APR 7 51275.50 15012 240122 5939780 11174 73 76 236 236 APR 8 51276.50 12998 240403 5928815 10834 71 72 232 232 APR 9 51277.50 11750 240472 5917713 11455 62 62 221 221 APR 10 51278.50 10900 240825 5905979 12101 60 62 212 212 APR 11 51279.50 10789 241359 5893012 13900 67 73 216 216 APR 12 51280.50 10334 242513 5878152 15851 68 72 212 212 APR 13 51281.50 9647 243474 5861330 17756 70 71 214 214 APR 14 51282.50 8786 244360 5842733 19323 73 71 212 212 APR 15 51283.50 7996 245353 5823500 18972 75 76 213 213 APR 16 51284.50 7243 246863 5804353 19149 76 77 218 218 APR 17 51285.50 5877 247930 5786172 17095 80 77 216 216 APR 18 51286.50 4224 248625 5769575 16060 54 56 190 190 APR 19 51287.50 2506 248816 5754194 14757 53 55 185 185 APR 20 51288.50 1070 248729 5740083 13570 51 53 186 186 APR 21 51289.50 -206 248789 5727116 12482 53 54 189 189 APR 22 51290.50 -1360 248896 5714506 12831 51 53 183 183 APR 23 51291.50 -2634 249425 5701735 12762 51 52 185 185 APR 24 51292.50 -4112 250389 5688809 13100 51 57 193 193 APR 25 51293.50 -5895 251329 5675302 13892 58 68 202 202 APR 26 51294.50 -7418 252286 5661456 13752 55 65 197 197 APR 27 51295.50 -8102 253152 5647015 15072 50 57 184 184 APR 28 51296.50 -8177 254284 5631898 15104 50 58 185 185 APR 29 51297.50 -8330 255658 5617191 14261 52 60 189 189 APR 30 51298.50 -8590 257115 5603106 13875 58 59 182 182 MAY 1 51299.50 -9508 258318 5589821 12682 54 56 183 183 MAY 2 51300.50 -10824 259139 5577545 11888 56 57 182 182 MAY 3 51301.50 -12310 259632 5566424 10392 61 63 186 186 MAY 4 51302.50 -14011 259972 5556703 9113 57 57 180 180 MAY 5 51303.50 -15255 259931 5548407 7553 61 62 191 191 MAY 6 51304.50 -15891 260650 5541051 7242 61 63 189 189 MAY 7 51305.50 -16497 261473 5533422 8094 62 65 187 187 MAY 8 51306.50 -17104 262328 5524798 9228 66 70 188 188 MAY 9 51307.50 -18085 263161 5514853 10711 67 73 194 194 MAY 10 51308.50 -18423 263681 5503384 12234 64 66 192 192 MAY 11 51309.50 -18778 264951 5490138 14197 59 65 186 186 MAY 12 51310.50 -18880 266300 5475150 15648 69 68 187 187 MAY 13 51311.50 -19092 267677 5459111 16259 65 67 187 187 MAY 14 51312.50 -18935 269315 5443135 15535 58 61 179 179 MAY 15 51313.50 -18710 270826 5428247 14154 54 56 180 180 MAY 16 51314.50 -18937 272522 5414980 12385 54 56 182 182 MAY 17 51315.50 -19486 274169 5403576 10509 57 58 181 181 MAY 18 51316.50 -19853 275468 5393344 10077 57 58 180 180 MAY 19 51317.50 -20028 276470 5383095 10532 56 57 181 181 MAY 20 51318.50 -20144 277163 5372429 10865 51 51 177 177 MAY 21 51319.50 -20288 277850 5360900 12209 46 50 173 173 MAY 22 51320.50 -20298 278606 5348326 12918 49 51 177 177 7 -l - EOP(NOAA) 96 P 01 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25432 240657 6153951 14137 33 31 94 189 APR 2 51270.50 23065 240584 6140205 13670 31 28 92 184 APR 3 51271.50 21268 239847 6126771 13518 32 28 92 184 APR 4 51272.50 19685 239694 6113018 12263 32 29 92 184 APR 5 51273.50 18461 239125 6100677 12046 33 29 93 187 APR 6 51274.50 17185 239188 6089413 11734 33 31 92 184 APR 7 51275.50 15213 239803 6079002 11215 34 33 92 183 APR 8 51276.50 13086 239908 6069167 10605 34 32 89 178 APR 9 51277.50 11704 240349 6058960 11220 34 31 87 174 APR 10 51278.50 10945 240498 6048515 11809 36 34 90 179 APR 11 51279.50 10592 241269 6031138 13583 33 33 90 180 APR 12 51280.50 10422 242478 6016758 15843 33 30 87 174 APR 13 51281.50 9513 243228 6001124 17551 31 29 88 176 APR 14 51282.50 8771 244232 5984276 18287 32 31 87 173 APR 15 51283.50 7777 245433 5966404 18410 30 28 88 176 APR 16 51284.50 7141 246842 5948371 17837 34 31 89 178 APR 17 51285.50 6155 247999 5930718 17406 36 37 93 186 APR 18 51286.50 4376 248742 5906300 16321 28 27 88 175 APR 19 51287.50 2488 248593 5891626 14389 30 30 89 178 APR 20 51288.50 1112 248612 5878425 13050 32 32 93 185 APR 21 51289.50 -223 248629 5866449 12282 29 29 88 176 APR 22 51290.50 -1301 248848 5854795 12609 27 27 86 172 APR 23 51291.50 -2583 249547 5843673 12495 29 28 88 176 APR 24 51292.50 -4011 250456 5831980 13101 27 26 85 169 APR 25 51293.50 -5802 251246 5812955 14172 31 32 87 173 APR 26 51294.50 -7501 252512 5799442 14376 39 35 87 174 APR 27 51295.50 -7849 253245 5785393 15033 30 29 87 175 APR 28 51296.50 -8155 254434 5771892 14695 34 34 91 182 APR 29 51297.50 -8322 255720 5758826 14326 31 31 89 178 APR 30 51298.50 -8358 257167 5746856 13107 32 34 89 178 MAY 1 51299.50 -9287 258268 5735537 12585 29 31 90 179 MAY 2 51300.50 -10782 259017 5720524 11211 30 28 88 175 MAY 3 51301.50 -12545 259376 5711618 9364 30 31 92 183 MAY 4 51302.50 -13969 259565 5703222 8157 30 29 87 174 MAY 5 51303.50 -15018 259970 5695465 7109 30 30 85 170 MAY 6 51304.50 -15674 260209 5687877 6586 31 30 87 175 MAY 7 51305.50 -16361 261079 5679259 7882 31 30 87 175 MAY 8 51306.50 -17147 262033 5670227 8646 31 29 86 172 MAY 9 51307.50 -17907 262810 5650953 10075 30 29 86 172 MAY 10 51308.50 -18300 263276 5637510 11481 30 29 84 168 MAY 11 51309.50 -18543 264694 5622097 13786 31 29 87 174 MAY 12 51310.50 -18661 266072 5605938 15142 30 29 87 174 MAY 13 51311.50 -18882 267280 5589525 15630 35 33 98 197 MAY 14 51312.50 -18651 268933 5573657 15084 29 29 91 181 MAY 15 51313.50 -18519 270437 5558885 14307 30 29 91 181 MAY 16 51314.50 -18741 272268 5556971 11999 29 27 88 176 MAY 17 51315.50 -19234 273758 5545526 10489 28 27 86 172 MAY 18 51316.50 -19625 275092 5535269 10063 33 31 94 187 MAY 19 51317.50 -20032 276477 5525549 10721 30 29 93 186 MAY 20 51318.50 -20110 276809 5516472 10915 31 30 94 187 MAY 21 51319.50 -20043 277537 5507254 11732 28 28 89 179 MAY 22 51320.50 -20066 278284 5497934 12871 27 27 89 178 MAY 23 51321.50 -20048 279366 5478158 13163 28 29 95 189 7 -m - EOP(SIO) 96 P 01 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25340 241040 6153600 14511 40 40 420 175 APR 2 51270.50 23230 240630 6139150 14040 40 40 480 177 APR 3 51271.50 21180 240100 6124960 13991 50 60 540 190 APR 4 51272.50 19490 239910 0 12566 50 60 0 182 APR 5 51273.50 18300 239530 6100860 12118 40 40 180 176 APR 6 51274.50 16960 239790 6088930 11781 40 40 270 175 APR 7 51275.50 15010 240120 6077439 11344 40 40 349 176 APR 8 51276.50 13070 240390 6066580 10908 40 40 410 174 APR 9 51277.50 11640 240690 6055450 11485 40 40 470 175 APR 10 51278.50 10820 240980 6043809 12224 60 60 520 180 APR 11 51279.50 10730 241650 0 13563 60 60 0 176 APR 12 51280.50 10330 242680 6016580 16005 40 40 170 168 APR 13 51281.50 9630 243640 5999300 18193 40 40 260 168 APR 14 51282.50 8810 244620 5980380 19392 40 40 330 171 APR 15 51283.50 8130 245730 5960830 19688 40 40 390 167 APR 16 51284.50 7330 247040 5941550 19037 40 40 440 168 APR 17 51285.50 6220 248190 5923280 17606 60 60 500 176 APR 18 51286.50 4260 248750 0 15905 50 60 0 158 APR 19 51287.50 2470 249040 5892110 14443 40 40 160 156 APR 20 51288.50 830 249040 5878510 13049 40 40 250 165 APR 21 51289.50 -350 249010 5865540 12430 40 40 310 158 APR 22 51290.50 -1410 249210 5853159 12246 40 40 360 153 APR 23 51291.50 -2650 249760 5840630 12809 40 40 410 166 APR 24 51292.50 -4240 250660 5827710 13266 50 60 460 153 APR 25 51293.50 -5820 251350 0 13927 70 70 0 195 APR 26 51294.50 -7290 252270 5800100 14493 50 50 190 191 APR 27 51295.50 -7939 253300 5784830 15496 50 50 290 181 APR 28 51296.50 -8160 254290 5769480 15186 50 50 370 185 APR 29 51297.50 -8220 255660 5754629 14437 50 50 430 173 APR 30 51298.50 -8500 257139 5740280 13853 50 50 480 174 MAY 1 51299.50 -9340 258359 5727370 12399 60 70 530 177 MAY 2 51300.50 -10890 259189 0 11599 60 70 0 182 MAY 3 51301.50 -12480 259820 5706320 10149 50 50 170 172 MAY 4 51302.50 -14070 259990 5697110 8486 50 50 270 171 MAY 5 51303.50 -15200 260110 5689210 7310 50 50 340 175 MAY 6 51304.50 -15930 260610 5681929 7183 50 50 400 170 MAY 7 51305.50 -16510 261359 5674570 7760 50 50 450 170 MAY 8 51306.50 -17250 262350 5666270 8965 70 70 510 180 MAY 9 51307.50 -17960 263050 0 10551 70 70 0 180 MAY 10 51308.50 -18520 263800 5645760 11327 50 50 180 178 MAY 11 51309.50 -18670 264920 5632300 14099 50 50 270 175 MAY 12 51310.50 -18730 266470 5617200 15717 50 50 349 177 MAY 13 51311.50 -18930 267800 5600929 16529 50 50 410 175 MAY 14 51312.50 -18720 269280 5584760 15762 50 50 460 165 MAY 15 51313.50 -18550 270840 5569760 14247 60 70 510 176 7 -n - EOP(IGS) 95 P 02 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25293 240916 6152974 14500 37 51 78 67 APR 2 51270.50 23111 240563 6139037 13794 38 40 97 125 APR 3 51271.50 21140 239970 6125505 13547 42 51 102 123 APR 4 51272.50 19571 239771 6113236 12417 42 51 192 121 APR 5 51273.50 18303 239531 6101318 11737 46 31 131 140 APR 6 51274.50 16980 239648 6089732 11458 50 53 123 107 APR 7 51275.50 15079 240148 6078429 11218 40 38 108 67 APR 8 51276.50 13094 240410 6067599 10787 37 45 108 71 APR 9 51277.50 11721 240559 6056348 11508 36 45 108 81 APR 10 51278.50 10955 240843 6044677 12175 51 45 135 134 APR 11 51279.50 10669 241539 6031410 13958 61 70 141 122 APR 12 51280.50 10253 242610 6016280 16148 50 49 137 130 APR 13 51281.50 9528 243539 5999249 18059 59 41 136 122 APR 14 51282.50 8704 244479 5980718 19203 48 59 149 70 APR 15 51283.50 7940 245612 5961835 18988 67 65 178 109 APR 16 51284.50 7143 247042 5942566 18838 53 61 162 106 APR 17 51285.50 5947 248141 5924363 17358 67 41 156 98 APR 18 51286.50 4240 248707 5907437 16125 18 45 191 117 APR 19 51287.50 2496 248896 5892190 14474 15 63 144 92 APR 20 51288.50 1040 248845 5878174 13336 42 70 141 91 APR 21 51289.50 -191 248814 5865126 12469 30 61 117 62 APR 22 51290.50 -1380 249019 5852542 12492 7 57 131 146 APR 23 51291.50 -2570 249606 5840255 12711 29 47 119 61 APR 24 51292.50 -4131 250518 5827538 13191 24 54 131 74 APR 25 51293.50 -5909 251397 5814043 13993 36 27 130 72 APR 26 51294.50 -7370 252324 5800194 14111 23 41 152 111 APR 27 51295.50 -8031 253234 5785252 14993 48 26 161 128 APR 28 51296.50 -8154 254371 5770363 14966 42 38 171 57 APR 29 51297.50 -8270 255746 5755995 14259 42 32 157 57 APR 30 51298.50 -8550 257191 5742106 13595 38 29 102 67 MAY 1 51299.50 -9429 258391 5729250 12385 48 27 91 83 MAY 2 51300.50 -10886 259217 5717273 11468 35 42 100 81 MAY 3 51301.50 -12451 259745 5706562 10095 66 41 80 67 MAY 4 51302.50 -14091 259993 5697151 8648 48 32 97 78 MAY 5 51303.50 -15222 260093 5688994 7321 45 47 99 59 MAY 6 51304.50 -15908 260651 5681597 6969 34 39 110 81 MAY 7 51305.50 -16505 261420 5673960 7954 39 41 132 75 MAY 8 51306.50 -17241 262361 5665746 8929 51 34 132 77 MAY 9 51307.50 -18029 263118 5656087 10432 24 69 145 117 MAY 10 51308.50 -18494 263798 5644726 11834 20 66 131 144 MAY 11 51309.50 -18795 265012 5631163 14052 31 39 134 57 MAY 12 51310.50 -18900 266416 5616398 15475 36 51 161 57 MAY 13 51311.50 -19034 267852 5600898 16009 39 65 181 89 MAY 14 51312.50 -18877 269328 5585529 15308 43 38 183 79 MAY 15 51313.50 -18648 270832 5570909 13997 40 48 186 112 7 -o - EOP(IGS) 96 P 02 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 25322 240808 6154264 14360 50 76 353 164 APR 2 51270.50 23111 240638 6140167 13948 80 49 366 76 APR 3 51271.50 21064 240038 6126429 13564 50 76 375 130 APR 4 51272.50 19355 239749 6113418 12675 103 76 383 100 APR 5 51273.50 18233 239328 6101226 11955 110 92 394 155 APR 6 51274.50 17058 239619 6089503 11492 118 88 409 159 APR 7 51275.50 15110 239999 6078019 11301 38 87 422 105 APR 8 51276.50 13118 240328 6066917 10951 57 96 431 117 APR 9 51277.50 11718 240701 6055734 11449 67 118 440 126 APR 10 51278.50 10871 240744 6043878 12136 102 69 452 174 APR 11 51279.50 10532 241506 6031427 13976 25 76 267 140 APR 12 51280.50 10205 242506 6014167 16108 34 128 339 224 APR 13 51281.50 9618 243376 5996976 18329 49 103 367 161 APR 14 51282.50 8833 244450 5981262 18929 124 89 346 238 APR 15 51283.50 7977 245475 5961742 19298 89 102 276 120 APR 16 51284.50 7122 247044 5942541 18797 107 101 410 102 APR 17 51285.50 6062 248090 5924328 17448 96 69 404 78 APR 18 51286.50 4263 248859 5907771 16003 59 87 412 99 APR 19 51287.50 2537 249070 5892616 14491 51 87 440 81 APR 20 51288.50 871 248774 5878615 13194 79 45 249 108 APR 21 51289.50 -108 248844 5865546 12596 96 93 243 179 APR 22 51290.50 -1440 249123 5852952 12537 79 58 234 82 APR 23 51291.50 -2446 249611 5840187 12617 109 65 221 130 APR 24 51292.50 -4286 250426 5827234 13378 112 68 251 185 APR 25 51293.50 -5918 251519 5813688 14090 132 106 243 78 APR 26 51294.50 -7455 252338 5799439 14067 100 71 294 122 APR 27 51295.50 -7936 253301 5785358 14703 118 53 431 110 APR 28 51296.50 -8256 254440 5770804 14997 76 74 509 110 APR 29 51297.50 -8148 255680 5756133 14426 62 68 236 109 APR 30 51298.50 -8447 257205 5742082 13582 53 61 470 126 MAY 1 51299.50 -9205 258372 5729289 12632 83 84 501 75 MAY 2 51300.50 -10763 259241 5716805 11422 67 53 496 104 MAY 3 51301.50 -12293 259859 5705961 10178 90 50 449 89 MAY 4 51302.50 -14024 259951 5696424 8914 60 67 447 194 MAY 5 51303.50 -15127 259999 5688083 7602 108 109 289 246 MAY 6 51304.50 -15953 260639 5680954 7294 71 89 287 232 MAY 7 51305.50 -16524 261254 5673486 8086 89 109 316 95 MAY 8 51306.50 -17077 262336 5664886 8991 50 100 301 135 MAY 9 51307.50 -18054 263261 5655132 10568 51 45 296 121 MAY 10 51308.50 -18708 263909 5644519 11787 116 96 258 113 MAY 11 51309.50 -18760 265064 5631969 13824 57 92 231 44 MAY 12 51310.50 -18876 266492 5617354 15387 44 108 221 66 MAY 13 51311.50 -19039 267868 5601430 16211 141 56 267 128 MAY 14 51312.50 -18790 269377 5585374 15554 120 101 341 129 MAY 15 51313.50 -18580 271070 5570613 14157 95 118 338 125 MAY 16 51314.50 -18759 272610 5557151 12085 68 99 349 92 MAY 17 51315.50 -19288 274350 5545697 10331 79 70 331 134 MAY 18 51316.50 -19794 275666 5534930 10006 75 93 257 71 MAY 19 51317.50 -20171 276720 5524073 10792 133 122 263 148 MAY 20 51318.50 -20236 277462 5514396 10870 83 139 273 64 MAY 21 51319.50 -20210 277898 5503064 12068 76 147 331 144 MAY 22 51320.50 -20093 278688 5490730 12752 51 96 514 95 MAY 23 51321.50 -20292 279440 5477907 12978 73 70 582 118 MAY 24 51322.50 -20640 280039 5465049 12905 69 90 659 113 MAY 25 51323.50 -21375 280673 5452381 12965 40 92 232 124 MAY 26 51324.50 -22338 281315 5440079 11280 50 93 366 134 MAY 27 51325.50 -23127 281650 5429206 10312 69 73 227 83 MAY 28 51326.50 -23559 282492 5419915 8833 79 64 194 66 MAY 29 51327.50 -23891 283196 5411481 7716 47 69 196 97 MAY 30 51328.50 -24294 283680 5403993 6980 20 107 196 98 7 -p - EOP(IERS) 97 P 01 Units : 1uas for x,y, 0.1us for UT1 and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.50 24957 240872 6153620 14267 81 99 210 205 APR 2 51270.50 22801 240522 6139470 13923 33 35 240 60 APR 3 51271.50 20831 239923 6125760 13385 54 62 260 229 APR 4 51272.50 19240 239679 6112980 12416 41 73 260 133 APR 5 51273.50 17970 239559 6100880 11757 64 82 300 225 APR 6 51274.50 16584 239667 6089200 11449 75 107 220 198 APR 7 51275.50 14707 240111 6078070 11060 65 38 180 101 APR 8 51276.50 12794 240436 6067410 10771 71 55 180 152 APR 9 51277.50 11426 240576 6056470 11288 86 59 230 91 APR 10 51278.50 10655 240898 6044890 12165 108 67 240 214 APR 11 51279.50 10406 241606 6031700 13984 78 73 160 116 APR 12 51280.50 9943 242566 6016560 16048 97 36 230 113 APR 13 51281.50 9258 243437 5999420 18004 83 81 290 197 APR 14 51282.50 8416 244434 5980830 19176 70 65 240 217 APR 15 51283.50 7680 245595 5961650 19295 87 80 220 105 APR 16 51284.50 6889 246953 5942480 18760 104 87 230 192 APR 17 51285.50 5678 248050 5924120 17541 123 158 220 128 APR 18 51286.50 3903 248719 5906990 16128 35 60 180 175 APR 19 51287.50 2184 248933 5891580 14524 31 56 150 44 APR 20 51288.50 754 248890 5877720 13254 58 95 160 146 APR 21 51289.50 -471 248878 5865090 12375 71 60 210 55 APR 22 51290.50 -1672 249117 5852930 12238 38 76 210 202 APR 23 51291.50 -2927 249696 5840650 12560 45 41 140 46 APR 24 51292.50 -4428 250560 5827880 13131 30 80 190 129 APR 25 51293.50 -6259 251430 5814350 13837 75 39 220 133 APR 26 51294.50 -7693 252312 5800350 14176 52 50 190 181 APR 27 51295.50 -8332 253251 5785540 14812 127 90 90 69 APR 28 51296.50 -8487 254371 5770410 14900 61 51 120 50 APR 29 51297.50 -8604 255725 5755700 14314 58 74 130 110 APR 30 51298.50 -8957 257193 5741640 13498 55 85 140 78 MAY 1 51299.50 -9858 258394 5728630 12350 65 65 170 122 MAY 2 51300.50 -11200 259219 5716570 11361 74 33 130 116 MAY 3 51301.50 -12750 259755 5705820 10093 84 36 100 65 MAY 4 51302.50 -14344 259992 5696700 8609 59 36 130 82 MAY 5 51303.50 -15479 260077 5689000 7385 69 76 170 100 MAY 6 51304.50 -16208 260677 5681860 7064 30 52 160 141 MAY 7 51305.50 -16845 261465 5674330 7719 43 67 150 81 MAY 8 51306.50 -17596 262304 5666020 8751 30 86 180 122 MAY 9 51307.50 -18349 263119 5656330 10350 38 125 290 134 MAY 10 51308.50 -18820 263843 5645140 11969 59 140 270 252 MAY 11 51309.50 -19098 264996 5631850 14014 35 71 150 86 MAY 12 51310.50 -19232 266376 5616820 15499 49 60 140 120 MAY 13 51311.50 -19356 267849 5600850 16002 74 146 90 78 MAY 14 51312.50 -19212 269348 5584990 15445 55 108 210 42 MAY 15 51313.50 -18986 270860 5570290 13960 57 38 240 206 MAY 16 51314.50 -19233 272452 5557400 12088 72 98 150 114 MAY 17 51315.50 -19747 274072 5546260 10533 101 32 150 98 MAY 18 51316.50 -20142 275501 5535890 10089 54 39 260 113 MAY 19 51317.50 -20390 276506 5525440 10483 41 41 260 236 MAY 20 51318.50 -20534 277190 5514740 10943 64 85 140 118 MAY 21 51319.50 -20567 277853 5503150 11861 87 51 220 74 MAY 22 51320.50 -20359 278704 5490850 12475 88 78 550 203 MAY 23 51321.50 -20590 279430 5479190 11642 30 60 600 509 MAY 24 51322.50 -20969 280021 5465990 12930 33 143 390 325 MAY 25 51323.50 -21714 280693 5452260 12787 82 77 400 213 MAY 26 51324.50 -22616 281350 5440900 11030 169 30 500 423 MAY 27 51325.50 -23423 281623 5430010 10444 111 30 600 244 MAY 28 51326.50 -23860 282536 5420250 9259 30 30 700 3 MAY 29 51327.50 -24202 283222 5411940 7788 30 32 800 75 MAY 30 51328.50 -24566 283674 5404590 6876 30 30 900 38 MAY 31 51329.50 -25176 284460 5397800 6469 30 30 1000 6 7-q - Satellite Laser Ranging : LAGEOS -EOP(CGS) 97 L 02 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998/99 MJD x y UT1-UTC x y UT1-UTC APR 3 51271.00 2072 24216 613993 49 60 50 APR 4 51272.00 2164 23922 612684 47 61 51 APR 5 51273.00 1766 23998 611575 46 54 45 APR 6 51274.00 2198 24458 610041 37 40 41 APR 7 51275.00 1929 23643 609478 45 58 55 APR 8 51276.00 1742 24083 607952 66 67 60 APR 9 51277.00 1411 24514 606242 62 107 80 APR 10 51278.00 1368 24289 605474 66 119 85 APR 11 51279.00 1332 24306 604269 47 57 50 APR 12 51280.00 1014 24116 602809 71 85 72 APR 13 51281.00 1067 24323 600931 65 70 73 APR 14 51282.00 999 24484 599131 42 43 43 APR 15 51283.00 926 24649 597243 61 53 49 APR 16 51284.00 700 24667 595167 52 37 43 APR 17 51285.00 630 24782 593282 44 42 49 APR 19 51287.00 154 24844 590018 36 39 43 APR 20 51288.00 96 24898 588585 47 41 41 APR 21 51289.00 -21 24873 587302 52 43 44 APR 22 51290.00 -245 24888 586177 78 45 48 APR 23 51291.00 -338 25002 584916 59 45 44 APR 24 51292.00 -362 24825 584056 94 339 238 APR 25 51293.00 -419 24966 582635 52 48 55 APR 26 51294.00 -939 24983 580947 61 41 45 APR 27 51295.00 -1094 25198 579594 50 42 42 APR 28 51296.00 -875 25335 578045 50 44 42 APR 29 51297.00 -781 25268 576475 38 52 45 APR 30 51298.00 -805 25363 575148 34 46 45 MAY 1 51299.00 -866 25631 573556 41 47 46 MAY 2 51300.00 -881 25884 572470 25 25 26 MAY 3 51301.00 -1158 25952 571329 33 30 33 MAY 4 51302.00 -1333 26000 570270 32 39 35 MAY 5 51303.00 -1511 26080 569389 31 25 26 MAY 6 51304.00 -1565 25961 568629 33 32 29 MAY 7 51305.00 -1618 26110 567852 23 22 24 MAY 8 51306.00 -1732 26049 567059 24 29 29 MAY 9 51307.00 -1827 26248 566134 33 28 26 MAY 10 51308.00 -1886 26360 564927 20 21 25 MAY 11 51309.00 -1938 26253 563799 28 36 28 MAY 12 51310.00 -1872 26568 562441 37 29 26 MAY 13 51311.00 -1997 26617 560905 27 26 27 MAY 14 51312.00 -2018 26788 559271 28 25 24 MAY 15 51313.00 -1942 26995 557825 30 26 25 MAY 16 51314.00 -1928 27039 556576 32 34 34 MAY 17 51315.00 -1942 27336 555151 23 28 28 MAY 18 51316.00 -1957 27629 554173 38 26 30 MAY 19 51317.00 -1910 27619 553066 23 27 27 MAY 20 51318.00 -1980 27773 552023 23 20 22 MAY 21 51319.00 -2038 27785 550836 24 20 24 MAY 22 51320.00 -2086 27924 549645 29 25 26 MAY 23 51321.00 -1975 27921 548281 24 26 25 MAY 24 51322.00 -1949 27956 547060 24 25 27 MAY 25 51323.00 -2019 28152 545581 25 23 25 MAY 26 51324.00 -2309 28087 544199 80 50 49 MAY 27 51325.00 -3254 27200 536304 455 455 4550 7-r - Satellite Laser Ranging : LAGEOS -EOP(CSR) 95 L 01 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998/99 MJD x y UT1-UTC x y UT1-UTC APR 1 51269.89 2318 23912 614877 36 48 39 APR 5 51273.37 1758 23753 610438 29 33 27 APR 7 51275.73 1294 23941 607612 46 49 39 APR 11 51279.03 889 23885 603910 45 62 46 APR 14 51282.07 797 24232 598970 33 32 30 APR 16 51284.94 537 24598 593441 29 25 24 APR 19 51287.87 66 24771 588632 30 32 24 APR 22 51290.99 -409 24828 584752 40 43 33 APR 26 51294.01 -845 25048 580851 34 26 21 APR 29 51297.18 -956 25337 576236 25 32 27 MAY 1 51299.97 -1141 25752 572368 26 29 27 MAY 4 51302.84 -1574 25752 569518 54 44 29 MAY 8 51306.05 -1901 26057 566949 32 37 28 MAY 10 51308.93 -2057 26247 563866 23 26 22 MAY 14 51312.36 -2029 26736 558831 36 40 70 MAY 16 51314.95 -2068 27157 555231 30 29 144 MAY 20 51318.14 -2136 27562 551872 28 24 237 MAY 22 51320.97 -2185 27773 548472 43 37 323 MAY 25 51323.08 -2249 27898 545821 146 191 395 7-s - Satellite Laser Ranging : LAGEOS -EOP(DUT) 98 L 01 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998/99 MJD x y UT1-UTC x y UT1-UTC APR 2 51270.00 2488 24062 0 14 17 0 APR 5 51273.00 1944 23987 0 11 12 0 APR 8 51276.00 1410 24103 0 14 15 0 APR 11 51279.00 1103 24246 0 14 26 0 APR 14 51282.00 976 24392 0 10 10 0 APR 17 51285.00 701 24763 0 11 12 0 APR 20 51288.00 221 24975 0 9 9 0 APR 23 51291.00 -161 24993 0 13 12 0 APR 26 51294.00 -658 25252 0 11 9 0 APR 29 51297.00 -766 25516 0 9 11 0 MAY 2 51300.00 -999 25967 0 11 13 0 MAY 5 51303.00 -1431 26027 0 13 12 0 MAY 8 51306.00 -1667 26245 0 11 13 0 MAY 11 51309.00 -1821 26486 0 8 9 0 MAY 14 51312.00 -1880 26882 0 13 13 0 MAY 17 51315.00 -1868 27431 0 10 12 0 MAY 20 51318.00 -1920 27805 0 10 11 0 MAY 23 51321.00 -2037 27958 0 12 12 0 MAY 26 51324.00 -2140 28105 0 8 9 0 7-t - Satellite Laser Ranging : LAGEOS -EOP(IAA) 98 L 02 Units : 0.00001" for x,y, 0.000001s for UT1.and D. Date Uncertainties 1998/99 MJD x y UT1-UTC D x y UT1-UTC D APR 1 51269.00 2596 24066 616035 1416 7 7 4 4 APR 2 51270.00 2415 24082 614607 1415 6 8 4 3 APR 3 51271.00 2214 24040 613214 1349 5 6 3 3 APR 4 51272.00 2027 23994 611899 1260 5 6 3 3 APR 5 51273.00 1886 23964 610668 1185 5 6 3 3 APR 6 51274.00 1746 23969 609502 1133 5 5 3 3 APR 7 51275.00 1582 23989 608378 1103 5 5 3 4 APR 8 51276.00 1386 24013 607271 1096 5 5 4 3 APR 9 51277.00 1211 24023 606319 1108 6 6 4 5 APR 10 51278.00 1119 24018 605175 1179 6 6 4 4 APR 11 51279.00 1055 24090 603926 1317 5 6 4 3 APR 12 51280.00 1007 24176 602512 1508 4 5 3 3 APR 13 51281.00 964 24260 600894 1718 4 4 3 2 APR 14 51282.00 890 24367 599088 1877 4 4 3 3 APR 15 51283.00 797 24470 597165 1943 4 4 3 3 APR 16 51284.00 716 24590 595216 1925 4 4 3 3 APR 17 51285.00 615 24720 593324 1829 4 3 3 3 APR 18 51286.00 479 24828 591556 1680 4 3 2 2 APR 19 51287.00 305 24875 589949 1516 4 4 2 2 APR 20 51288.00 146 24886 588498 1380 4 4 3 3 APR 21 51289.00 -21 24884 587158 1301 7 5 4 4 APR 22 51290.00 -129 24870 585895 1225 6 5 4 4 APR 23 51291.00 -206 24899 584663 1236 7 6 4 4 APR 24 51292.00 -338 24994 583401 1278 7 6 3 3 APR 25 51293.00 -507 25071 582082 1345 7 6 3 3 APR 26 51294.00 -685 25153 580687 1425 7 7 3 4 APR 27 51295.00 -795 25295 579228 1474 5 5 3 2 APR 28 51296.00 -839 25396 577751 1460 4 5 2 2 APR 29 51297.00 -842 25492 576294 1430 4 5 2 3 APR 30 51298.00 -862 25648 574878 1380 4 5 3 3 MAY 1 51299.00 -942 25776 573526 1305 6 7 3 3 MAY 2 51300.00 -1059 25885 572269 1191 7 7 4 4 MAY 3 51301.00 -1206 25914 571146 1042 5 5 4 3 MAY 4 51302.00 -1361 25958 570161 916 5 5 3 3 MAY 5 51303.00 -1486 25986 569294 807 4 4 3 3 MAY 6 51304.00 -1574 26016 568512 743 5 4 3 3 MAY 7 51305.00 -1639 26081 567755 760 5 5 3 3 MAY 8 51306.00 -1705 26175 566948 843 5 5 3 3 MAY 9 51307.00 -1780 26260 566041 960 3 4 3 2 MAY 10 51308.00 -1839 26353 564988 1131 3 4 2 2 MAY 11 51309.00 -1880 26445 563751 1322 4 4 2 2 MAY 12 51310.00 -1895 26563 562331 1489 5 5 3 3 MAY 13 51311.00 -1907 26713 560779 1581 5 5 3 2 MAY 14 51312.00 -1913 26861 559190 1561 5 5 3 3 MAY 15 51313.00 -1925 26994 557710 1456 7 7 4 6 MAY 16 51314.00 -1928 27158 556280 1293 7 6 4 5 MAY 17 51315.00 -1966 27327 555056 1142 8 6 5 6 MAY 18 51316.00 -1980 27473 553971 1050 5 5 4 4 MAY 19 51317.00 -2011 27598 552930 1039 5 5 3 4 MAY 20 51318.00 -2032 27696 551876 1072 5 5 4 5 MAY 21 51319.00 -2031 27752 550759 1159 4 3 4 3 MAY 22 51320.00 -2028 27814 549556 1238 4 4 3 3 MAY 23 51321.00 -2042 27896 548287 1282 5 5 4 4 MAY 24 51322.00 -2058 27969 546980 1312 4 4 4 4 MAY 25 51323.00 -2120 28019 545678 1273 4 4 3 3 MAY 26 51324.00 -2206 28090 544446 1173 4 3 3 3 MAY 27 51325.00 -2284 28163 543347 1006 5 5 4 4 MAY 28 51326.00 -2357 28225 542401 868 4 4 3 3 MAY 29 51327.00 -2414 28287 541564 793 4 4 4 4 MAY 30 51328.00 -2432 28362 540787 750 7 6 6 8 7-u - Satellite Laser Ranging : LAGEOS -EOP(MCC) 97 L 01 Units : 0.00001" for x,y, 0.000001s for UT1. Date Uncertainties 1998/99 MJD x y D x y D APR 1 51269.00 2576 24062 1410 6 6 10 APR 2 51270.00 2377 24048 1350 6 8 0 APR 3 51271.00 2164 24006 1380 5 6 0 APR 4 51272.00 1986 23962 1290 6 8 10 APR 5 51273.00 1847 23904 1220 5 7 10 APR 6 51274.00 1726 23920 1170 5 6 10 APR 7 51275.00 1545 23945 1150 6 6 10 APR 8 51276.00 1351 23990 1100 8 6 10 APR 9 51277.00 1153 24020 1150 12 15 20 APR 10 51278.00 1054 24039 1190 7 10 10 APR 11 51279.00 1005 24083 1350 7 8 10 APR 12 51280.00 972 24182 1500 6 5 10 APR 13 51281.00 961 24296 1690 6 5 10 APR 14 51282.00 867 24371 1810 6 5 10 APR 15 51283.00 828 24457 1870 6 5 10 APR 16 51284.00 733 24599 1900 5 4 10 APR 17 51285.00 628 24755 1810 7 6 10 APR 18 51286.00 471 24844 1710 5 5 10 APR 19 51287.00 283 24881 1560 7 7 10 APR 20 51288.00 81 24921 1400 7 7 10 APR 21 51289.00 -48 24875 1310 8 7 10 APR 22 51290.00 -155 24874 1250 9 6 10 APR 23 51291.00 -280 24916 1270 10 8 10 APR 24 51292.00 -427 24996 1310 10 10 10 APR 25 51293.00 -587 25099 1380 6 6 10 APR 26 51294.00 -715 25200 1420 7 5 0 APR 27 51295.00 -807 25263 1450 6 5 10 APR 28 51296.00 -835 25381 1480 6 5 10 APR 29 51297.00 -862 25492 1430 6 5 0 APR 30 51298.00 -900 25637 1400 8 11 10 MAY 1 51299.00 -974 25769 1300 6 6 10 MAY 2 51300.00 -1081 25853 1220 7 6 10 MAY 3 51301.00 -1204 25894 1110 8 10 10 MAY 4 51302.00 -1327 25916 900 9 9 10 MAY 5 51303.00 -1459 25975 810 12 10 10 MAY 6 51304.00 -1562 26023 780 9 9 10 MAY 7 51305.00 -1672 26110 790 6 6 10 MAY 8 51306.00 -1733 26166 900 7 6 10 MAY 9 51307.00 -1803 26253 990 5 6 10 MAY 10 51308.00 -1861 26305 1150 5 5 10 MAY 11 51309.00 -1931 26431 1330 5 5 10 MAY 12 51310.00 -1908 26543 1460 8 5 10 MAY 13 51311.00 -1896 26683 1550 9 6 10 MAY 14 51312.00 -1924 26827 1520 7 6 10 MAY 15 51313.00 -1922 26991 1460 7 5 10 MAY 16 51314.00 -1933 27152 1330 5 5 10 MAY 17 51315.00 -1985 27328 1120 7 6 10 MAY 18 51316.00 -1986 27457 1080 7 6 10 MAY 19 51317.00 -2053 27585 1070 6 5 10