Values of TAI-TA(laboratory) for 1988. 0.0 denotes that no value is available. Unit is one microsecond. For NISA and NIST add -45000 microseconds. For SU and USNO add respectively 2827000 and -34000 microseconds. Example, for MJD = 47189, TAI-TA(USNO) = -34552.844 microseconds. MJD AOS CH DDR F JATC NIST NIM NRC PTB CRL SO SU USNO APL CSAO NISA 47169 -76.574 -46.824 -24.349 49.859 -0.313-105.738 -7.394 20.794 47169-359.091 -2.820 -44.963 271.462-551.671 0.023 39.869 -45.280 47179 -78.630 -47.008 -24.678 50.234 -0.315-106.144 -7.557 20.939 47179-359.130 -2.903 -45.138 271.242-552.276 0.011 39.726 -45.531 47189 -80.548 -47.161 -24.947 50.640 -0.277-106.512 -7.585 21.121 47189-359.137 -2.991 -45.387 271.509-552.844 0.028 39.764 -45.754 47199 -82.656 -47.357 -25.279 51.014 -0.629-106.892 -7.607 21.242 47199-359.165 -3.129 -45.666 271.283-553.409 0.031 39.662 -46.005 47209 -84.499 -47.558 -25.674 51.384 -0.567-107.275 -7.544 21.404 47209-359.161 -3.305 -45.721 271.126-553.999 0.035 39.680 -46.249 47219 -86.471 -47.765 -25.904 51.750 -0.466-107.659 -7.520 21.504 47219-359.156 -3.451 -45.791 271.038-554.542 0.029 39.630 -46.500 47229 -88.406 -47.961 -26.076 52.124 -0.272-108.029 -7.612 21.574 47229-359.136 -3.536 -45.695 270.755-555.125 0.025 39.604 -46.745 47239 -90.316 -48.164 -26.306 52.538 -0.063-108.397 -7.672 21.630 47239-359.116 -3.568 -45.665 270.552-555.681 0.035 39.572 -46.983 47249 -92.462 -48.374 -26.563 52.930 -0.224-108.789 -7.763 21.649 47249-359.102 -3.616 -45.659 270.375-556.252 0.025 39.541 -47.239 47259 -94.447 -48.582 -26.817 53.318 -0.188-109.187 -7.872 21.692 47259-359.097 -3.627 -45.725 270.160-556.835 0.023 39.578 -47.497 47269 -96.551 -48.803 -27.091 53.733 -0.144-109.573 -8.061 21.753 47269-359.061 -3.633 -45.696 270.077-557.388 0.013 39.579 -47.744 47279 -98.702 -49.021 -27.422 54.153 -0.068-109.973 -8.202 21.818 47279-359.072 -3.669 -45.663 269.616-557.954 0.008 39.669 -47.992 47289-101.003 -49.255 -27.773 54.536 -0.059-110.371 -8.337 21.846 47289-359.093 -3.673 -45.754 269.624-558.549 0.020 39.587 -48.212 47299-102.877 -49.465 -28.107 54.985 0.005-110.767 -8.459 21.874 47299-359.067 -3.710 -45.685 269.520-559.131 0.012 39.596 -48.442 47309-104.904 -49.689 -28.514 55.431 0.086-111.163 -8.476 21.882 47309-359.053 -3.729 -45.700 269.178-559.705 0.020 39.629 -48.661 47319-106.974 -49.918 -28.835 55.885 0.181-111.547 -8.224 21.888 47319-359.054 -3.757 -45.691 269.319-560.280 -0.013 39.667 -48.905 47329-109.088 -50.126 -29.158 56.317 0.315-111.938 -8.164 21.895 47329-359.028 -3.721 -45.634 269.417-560.810 -0.032 39.788 -49.123 47339-111.491 -50.342 -29.561 56.781 0.422-112.323 -8.202 21.898 47339-359.051 -3.721 -45.634 269.440-561.350 -0.062 39.835 -49.358 47349-113.781 -50.538 -29.951 57.292 0.430-112.708 -8.384 21.826 47349-359.061 -3.709 -45.743 269.340-561.898 -0.087 39.739 -49.594 47359-115.742 -50.759 -30.352 57.751 0.563-113.063 -8.405 21.758 47359-359.102 -3.699 -45.689 269.130-562.447 -0.118 39.836 -49.790 47369-117.937 -50.920 -30.707 58.229 0.677-113.421 -8.503 21.706 47369-359.097 -3.671 -45.796 268.790-562.924 -0.186 39.973 -49.970 47379-119.987 -51.147 -31.117 58.675 0.785-113.804 -8.496 21.682 47379-359.197 -3.666 -45.881 268.980-563.414 -0.197 40.001 -50.172 47389-122.337 -51.331 -31.287 59.139 0.944-114.172 -8.499 21.665 47389-359.167 -3.638 -45.955 268.840-563.912 -0.215 40.141 -50.357 47399-124.200 -51.559 -30.559 59.591 0.964-114.538 -8.661 21.549 47399-359.149 -3.622 -46.056 268.690-564.422 -0.250 40.202 -50.544 47409-126.021 -51.793 -30.661 60.046 1.056-114.914 -8.775 21.367 47409-359.141 -3.604 -46.058 268.550-564.918 -0.287 40.239 -50.734 47419-128.028 -52.018 -30.718 60.466 1.183-115.290 -8.793 21.063 47419-359.158 -3.599 -46.042 268.400-565.449 -0.329 40.382 -50.920 47429-129.998 -52.255 -30.768 60.900 1.311-115.681 -8.924 20.775 47429-359.168 -3.579 -45.991 268.260-565.914 -0.360 40.460 -51.102 47439-132.050 -52.474 -30.759 61.299 1.460-116.064 -9.271 20.461 47439-359.189 -3.571 -45.998 268.110-566.405 -0.399 40.552 -51.290 47449-133.760 -52.692 -30.695 61.711 1.517-116.446 -9.303 20.152 47449-359.204 -3.539 -45.927 267.970-566.937 -0.413 40.585 -51.485 47459-135.600 -52.887 -30.742 62.120 1.553-116.809 -9.551 19.860 47459-359.221 -3.500 -45.954 267.830-567.429 -0.426 40.516 -51.669 47469-137.490 -53.083 -30.634 62.513 1.690-117.170 -9.757 19.559 47469-359.254 -3.503 -45.826 267.700-567.974 -0.440 40.493 -51.854 47479-139.210 -53.278 -30.464 62.878 1.850-117.536 -9.802 19.261 47479-359.224 -3.463 -45.573 267.580-568.527 -0.447 40.579 -52.049 47489-141.290 -53.464 -30.362 63.240 1.710-117.909 -10.045 18.945 47489-359.212 -3.434 -45.478 267.355-569.032 -0.467 40.548 -52.253 47499 0.0 -53.646 -30.182 63.609 1.632-118.305 -10.092 18.602 47499-359.271 -3.415 -45.343 267.254-569.587 -0.484 40.467 -52.472 47509 0.0 -53.839 -29.954 63.988 1.533-118.708 -9.949 18.420 47509-359.294 -3.383 -45.052 267.028-570.149 -0.511 40.474 -52.701 47519 0.0 -54.010 -29.727 64.360 1.457-119.106 -9.695 18.250 47519-359.287 -3.321 -44.888 266.749-570.729 -0.541 40.390 -52.920