YEAR M D DUT1 DUTC UT1-UTC NOTE 1972 1 1 42.227000 42.184 -0.043000 From MICA 1972 2 1 42.328000 42.184 -0.144000 1972 3 1 42.423000 42.184 -0.239000 1972 4 1 42.524000 42.184 -0.340000 1972 5 1 42.622000 42.184 -0.438000 1972 6 1 42.724000 42.184 -0.540000 1972 7 1 42.822000 43.184 0.362000 1972 8 1 42.915000 43.184 0.269000 1972 9 1 43.008000 43.184 0.176000 1972 10 1 43.098000 43.184 0.086000 1972 11 1 43.190000 43.184 -0.006000 1972 12 1 43.280000 43.184 -0.096000 1973 1 1 43.373000 44.184 0.811000 Last from MICA 1973 2 1 43.472400 44.184 0.711600 From ftp://maia.usno.navy.mil/ser7/deltat.data 1973 3 1 43.564800 44.184 0.619200 1973 4 1 43.673700 44.184 0.510300 1973 5 1 43.778200 44.184 0.405800 1973 6 1 43.876300 44.184 0.307700 1973 7 1 43.956200 44.184 0.227800 1973 8 1 44.031500 44.184 0.152500 1973 9 1 44.113200 44.184 0.070800 1973 10 1 44.198200 44.184 -0.014200 1973 11 1 44.295200 44.184 -0.111200 1973 12 1 44.393600 44.184 -0.209600 1974 1 1 44.484100 45.184 0.699900 1974 2 1 44.564600 45.184 0.619400 1974 3 1 44.642500 45.184 0.541500 1974 4 1 44.738600 45.184 0.445400 1974 5 1 44.837000 45.184 0.347000 1974 6 1 44.930200 45.184 0.253800 1974 7 1 44.998600 45.184 0.185400 1974 8 1 45.058400 45.184 0.125600 1974 9 1 45.128400 45.184 0.055600 1974 10 1 45.206400 45.184 -0.022400 1974 11 1 45.298000 45.184 -0.114000 1974 12 1 45.389700 45.184 -0.205700 1975 1 1 45.476100 46.184 0.707900 1975 2 1 45.563300 46.184 0.620700 1975 3 1 45.645000 46.184 0.539000 1975 4 1 45.737500 46.184 0.446500 1975 5 1 45.828400 46.184 0.355600 1975 6 1 45.913300 46.184 0.270700 1975 7 1 45.982000 46.184 0.202000 1975 8 1 46.040800 46.184 0.143200 1975 9 1 46.106700 46.184 0.077300 1975 10 1 46.182500 46.184 0.001500 1975 11 1 46.278900 46.184 -0.094900 1975 12 1 46.371300 46.184 -0.187300 1976 1 1 46.456700 47.184 0.727300 1976 2 1 46.544500 47.184 0.639500 1976 3 1 46.631100 47.184 0.552900 1976 4 1 46.730200 47.184 0.453800 1976 5 1 46.828400 47.184 0.355600 1976 6 1 46.924700 47.184 0.259300 1976 7 1 46.997000 47.184 0.187000 1976 8 1 47.070900 47.184 0.113100 1976 9 1 47.145100 47.184 0.038900 1976 10 1 47.236200 47.184 -0.052200 1976 11 1 47.341300 47.184 -0.157300 1976 12 1 47.431900 47.184 -0.247900 1977 1 1 47.521400 48.184 0.662600 1977 2 1 47.604900 48.184 0.579100 1977 3 1 47.683700 48.184 0.500300 1977 4 1 47.778100 48.184 0.405900 1977 5 1 47.877100 48.184 0.306900 1977 6 1 47.968700 48.184 0.215300 1977 7 1 48.034800 48.184 0.149200 1977 8 1 48.094200 48.184 0.089800 1977 9 1 48.160800 48.184 0.023200 1977 10 1 48.246000 48.184 -0.062000 1977 11 1 48.343900 48.184 -0.159900 1977 12 1 48.435500 48.184 -0.251500 1978 1 1 48.534400 49.184 0.649600 1978 2 1 48.632500 49.184 0.551500 1978 3 1 48.729400 49.184 0.454600 1978 4 1 48.836500 49.184 0.347500 1978 5 1 48.935300 49.184 0.248700 1978 6 1 49.031900 49.184 0.152100 1978 7 1 49.101300 49.184 0.082700 1978 8 1 49.159100 49.184 0.024900 1978 9 1 49.228600 49.184 -0.044600 1978 10 1 49.307000 49.184 -0.123000 1978 11 1 49.401800 49.184 -0.217800 1978 12 1 49.494500 49.184 -0.310500 1979 1 1 49.586200 50.184 0.597800 1979 2 1 49.680500 50.184 0.503500 1979 3 1 49.760200 50.184 0.423800 1979 4 1 49.855600 50.184 0.328400 1979 5 1 49.948900 50.184 0.235100 1979 6 1 50.034700 50.184 0.149300 1979 7 1 50.101900 50.184 0.082100 1979 8 1 50.162200 50.184 0.021800 1979 9 1 50.226000 50.184 -0.042000 1979 10 1 50.296800 50.184 -0.112800 1979 11 1 50.383100 50.184 -0.199100 1979 12 1 50.459900 50.184 -0.275900 1980 1 1 50.538700 51.184 0.645300 1980 2 1 50.616100 51.184 0.567900 1980 3 1 50.686600 51.184 0.497400 1980 4 1 50.765800 51.184 0.418200 1980 5 1 50.845400 51.184 0.338600 1980 6 1 50.918700 51.184 0.265300 1980 7 1 50.976100 51.184 0.207900 1980 8 1 51.027800 51.184 0.156200 1980 9 1 51.084300 51.184 0.099700 1980 10 1 51.153800 51.184 0.030200 1980 11 1 51.231900 51.184 -0.047900 1980 12 1 51.306300 51.184 -0.122300 1981 1 1 51.380800 51.184 -0.196800 1981 2 1 51.452600 51.184 -0.268600 1981 3 1 51.516000 51.184 -0.332000 1981 4 1 51.598500 51.184 -0.414500 1981 5 1 51.680900 51.184 -0.496900 1981 6 1 51.757300 51.184 -0.573300 1981 7 1 51.813300 52.184 0.370700 1981 8 1 51.853200 52.184 0.330800 1981 9 1 51.901400 52.184 0.282600 1981 10 1 51.960300 52.184 0.223700 1981 11 1 52.032800 52.184 0.151200 1981 12 1 52.098500 52.184 0.085500 1982 1 1 52.166800 52.184 0.017200 1982 2 1 52.231600 52.184 -0.047600 1982 3 1 52.293800 52.184 -0.109800 1982 4 1 52.368000 52.184 -0.184000 1982 5 1 52.446500 52.184 -0.262500 1982 6 1 52.518000 52.184 -0.334000 1982 7 1 52.575200 53.184 0.608800 1982 8 1 52.617800 53.184 0.566200 1982 9 1 52.666800 53.184 0.517200 1982 10 1 52.734000 53.184 0.450000 1982 11 1 52.805600 53.184 0.378400 1982 12 1 52.879200 53.184 0.304800 1983 1 1 52.956500 53.184 0.227500 1983 2 1 53.044500 53.184 0.139500 1983 3 1 53.126800 53.184 0.057200 1983 4 1 53.219700 53.184 -0.035700 1983 5 1 53.302400 53.184 -0.118400 1983 6 1 53.374700 53.184 -0.190700 1983 7 1 53.433500 54.184 0.750500 1983 8 1 53.477800 54.184 0.706200 1983 9 1 53.530000 54.184 0.654000 1983 10 1 53.584500 54.184 0.599500 1983 11 1 53.652300 54.184 0.531700 1983 12 1 53.725600 54.184 0.458400 1984 1 1 53.788200 54.184 0.395800 1984 2 1 53.836700 54.184 0.347300 1984 3 1 53.883000 54.184 0.301000 1984 4 1 53.944300 54.184 0.239700 1984 5 1 54.004200 54.184 0.179800 1984 6 1 54.053600 54.184 0.130400 1984 7 1 54.085600 54.184 0.098400 1984 8 1 54.108400 54.184 0.075600 1984 9 1 54.146300 54.184 0.037700 1984 10 1 54.191400 54.184 -0.007400 1984 11 1 54.245200 54.184 -0.061200 1984 12 1 54.295800 54.184 -0.111800 1985 1 1 54.342700 54.184 -0.158700 1985 2 1 54.391100 54.184 -0.207100 1985 3 1 54.432000 54.184 -0.248000 1985 4 1 54.489800 54.184 -0.305800 1985 5 1 54.545600 54.184 -0.361600 1985 6 1 54.597700 54.184 -0.413700 1985 7 1 54.635500 55.184 0.548500 1985 8 1 54.653200 55.184 0.530800 1985 9 1 54.677600 55.184 0.506400 1985 10 1 54.717400 55.184 0.466600 1985 11 1 54.774100 55.184 0.409900 1985 12 1 54.825300 55.184 0.358700 1986 1 1 54.871300 55.184 0.312700 1986 2 1 54.916100 55.184 0.267900 1986 3 1 54.958100 55.184 0.225900 1986 4 1 54.999700 55.184 0.184300 1986 5 1 55.047600 55.184 0.136400 1986 6 1 55.091200 55.184 0.092800 1986 7 1 55.113200 55.184 0.070800 1986 8 1 55.132800 55.184 0.051200 1986 9 1 55.153200 55.184 0.030800 1986 10 1 55.189800 55.184 -0.005800 1986 11 1 55.241600 55.184 -0.057600 1986 12 1 55.283800 55.184 -0.099800 1987 1 1 55.322200 55.184 -0.138200 1987 2 1 55.361300 55.184 -0.177300 1987 3 1 55.406300 55.184 -0.222300 1987 4 1 55.462900 55.184 -0.278900 1987 5 1 55.511100 55.184 -0.327100 1987 6 1 55.552400 55.184 -0.368400 1987 7 1 55.581200 55.184 -0.397200 1987 8 1 55.600400 55.184 -0.416400 1987 9 1 55.626200 55.184 -0.442200 1987 10 1 55.665600 55.184 -0.481600 1987 11 1 55.716800 55.184 -0.532800 1987 12 1 55.769800 55.184 -0.585800 1988 1 1 55.819700 56.184 0.364300 1988 2 1 55.861500 56.184 0.322500 1988 3 1 55.913000 56.184 0.271000 1988 4 1 55.966300 56.184 0.217700 1988 5 1 56.022000 56.184 0.162000 1988 6 1 56.070000 56.184 0.114000 1988 7 1 56.093900 56.184 0.090100 1988 8 1 56.110500 56.184 0.073500 1988 9 1 56.131400 56.184 0.052600 1988 10 1 56.161100 56.184 0.022900 1988 11 1 56.206800 56.184 -0.022800 1988 12 1 56.258300 56.184 -0.074300 1989 1 1 56.300000 56.184 -0.116000 1989 2 1 56.339900 56.184 -0.155900 1989 3 1 56.379000 56.184 -0.195000 1989 4 1 56.428300 56.184 -0.244300 1989 5 1 56.480400 56.184 -0.296400 1989 6 1 56.535200 56.184 -0.351200 1989 7 1 56.569700 56.184 -0.385700 1989 8 1 56.598300 56.184 -0.414300 1989 9 1 56.632800 56.184 -0.448800 1989 10 1 56.673900 56.184 -0.489900 1989 11 1 56.733200 56.184 -0.549200 1989 12 1 56.797200 56.184 -0.613200 1990 1 1 56.855300 57.184 0.328700 1990 2 1 56.911100 57.184 0.272900 1990 3 1 56.975500 57.184 0.208500 1990 4 1 57.047100 57.184 0.136900 1990 5 1 57.113600 57.184 0.070400 1990 6 1 57.173800 57.184 0.010200 1990 7 1 57.222600 57.184 -0.038600 1990 8 1 57.259700 57.184 -0.075700 1990 9 1 57.307300 57.184 -0.123300 1990 10 1 57.364300 57.184 -0.180300 1990 11 1 57.433400 57.184 -0.249400 1990 12 1 57.501600 57.184 -0.317600 1991 1 1 57.565300 58.184 0.618700 1991 2 1 57.633300 58.184 0.550700 1991 3 1 57.697300 58.184 0.486700 1991 4 1 57.771100 58.184 0.412900 1991 5 1 57.840700 58.184 0.343300 1991 6 1 57.905800 58.184 0.278200 1991 7 1 57.957600 58.184 0.226400 1991 8 1 57.997500 58.184 0.186500 1991 9 1 58.042600 58.184 0.141400 1991 10 1 58.104300 58.184 0.079700 1991 11 1 58.167900 58.184 0.016100 1991 12 1 58.238900 58.184 -0.054900 1992 1 1 58.309200 58.184 -0.125200 1992 2 1 58.383300 58.184 -0.199300 1992 3 1 58.453700 58.184 -0.269700 1992 4 1 58.540100 58.184 -0.356100 1992 5 1 58.622800 58.184 -0.438800 1992 6 1 58.691700 58.184 -0.507700 1992 7 1 58.741000 59.184 0.443000 1992 8 1 58.783600 59.184 0.400400 1992 9 1 58.840600 59.184 0.343400 1992 10 1 58.898600 59.184 0.285400 1992 11 1 58.971400 59.184 0.212600 1992 12 1 59.043800 59.184 0.140200 1993 1 1 59.121800 59.184 0.062200 1993 2 1 59.200300 59.184 -0.016300 1993 3 1 59.274700 59.184 -0.090700 1993 4 1 59.357400 59.184 -0.173400 1993 5 1 59.443400 59.184 -0.259400 1993 6 1 59.524200 59.184 -0.340200 1993 7 1 59.585000 60.184 0.599000 1993 8 1 59.634400 60.184 0.549600 1993 9 1 59.692800 60.184 0.491200 1993 10 1 59.758800 60.184 0.425200 1993 11 1 59.838600 60.184 0.345400 1993 12 1 59.911100 60.184 0.272900 1994 1 1 59.984500 60.184 0.199500 1994 2 1 60.056400 60.184 0.127600 1994 3 1 60.123100 60.184 0.060900 1994 4 1 60.204200 60.184 -0.020200 1994 5 1 60.280400 60.184 -0.096400 1994 6 1 60.353000 60.184 -0.169000 1994 7 1 60.401200 61.184 0.782800 1994 8 1 60.444000 61.184 0.740000 1994 9 1 60.490000 61.184 0.694000 1994 10 1 60.557800 61.184 0.626200 1994 11 1 60.632400 61.184 0.551600 1994 12 1 60.705900 61.184 0.478100 1995 1 1 60.785300 61.184 0.398700 1995 2 1 60.866400 61.184 0.317600 1995 3 1 60.938700 61.184 0.245300 1995 4 1 61.027700 61.184 0.156300 1995 5 1 61.110300 61.184 0.073700 1995 6 1 61.187000 61.184 -0.003000 1995 7 1 61.245400 61.184 -0.061400 1995 8 1 61.288100 61.184 -0.104100 1995 9 1 61.337800 61.184 -0.153800 1995 10 1 61.403600 61.184 -0.219600 1995 11 1 61.476000 61.184 -0.292000 1995 12 1 61.552500 61.184 -0.368500 1996 1 1 61.628700 62.184 0.555300 1996 2 1 61.684600 62.184 0.499400 1996 3 1 61.743300 62.184 0.440700 1996 4 1 61.813200 62.184 0.370800 1996 5 1 61.882300 62.184 0.301700 1996 6 1 61.949700 62.184 0.234300 1996 7 1 61.996900 62.184 0.187100 1996 8 1 62.034300 62.184 0.149700 1996 9 1 62.071400 62.184 0.112600 1996 10 1 62.120200 62.184 0.063800 1996 11 1 62.181000 62.184 0.003000 1996 12 1 62.238200 62.184 -0.054200 1997 1 1 62.295000 62.184 -0.111000 1997 2 1 62.350600 62.184 -0.166600 1997 3 1 62.399500 62.184 -0.215500 1997 4 1 62.475400 62.184 -0.291400 1997 5 1 62.546300 62.184 -0.362300 1997 6 1 62.613600 62.184 -0.429600 1997 7 1 62.657100 63.184 0.526900 1997 8 1 62.694200 63.184 0.489800 1997 9 1 62.738300 63.184 0.445700 1997 10 1 62.792600 63.184 0.391400 1997 11 1 62.856700 63.184 0.327300 1997 12 1 62.914600 63.184 0.269400 1998 1 1 62.965900 63.184 0.218100 1998 2 1 63.021700 63.184 0.162300 1998 3 1 63.080700 63.184 0.103300 1998 4 1 63.146200 63.184 0.037800 1998 5 1 63.205300 63.184 -0.021300 1998 6 1 63.259900 63.184 -0.075900 1998 7 1 63.284400 63.184 -0.100400 1998 8 1 63.296100 63.184 -0.112100 1998 9 1 63.312600 63.184 -0.128600 1998 10 1 63.342200 63.184 -0.158200 1998 11 1 63.387100 63.184 -0.203100 1998 12 1 63.433900 63.184 -0.249900 1999 1 1 63.467300 64.184 0.716700 1999 2 1 63.497900 64.184 0.686100 1999 3 1 63.531900 64.184 0.652100 1999 4 1 63.567900 64.184 0.616100 1999 5 1 63.610400 64.184 0.573600 1999 6 1 63.644400 64.184 0.539600 1999 7 1 63.664200 64.184 0.519800 1999 8 1 63.673900 64.184 0.510100 1999 9 1 63.692600 64.184 0.491400 1999 10 1 63.714700 64.184 0.469300 1999 11 1 63.751800 64.184 0.432200 1999 12 1 63.792700 64.184 0.391300 2000 1 1 63.828500 64.184 0.355500 2000 2 1 63.855700 64.184 0.328300 2000 3 1 63.880400 64.184 0.303600 2000 4 1 63.907500 64.184 0.276500 2000 5 1 63.939300 64.184 0.244700 2000 6 1 63.969100 64.184 0.214900 2000 7 1 63.979900 64.184 0.204100 2000 8 1 63.983300 64.184 0.200700 2000 9 1 63.993800 64.184 0.190200 2000 10 1 64.009300 64.184 0.174700 2000 11 1 64.040000 64.184 0.144000 2000 12 1 64.067000 64.184 0.117000 2001 1 1 64.090800 64.184 0.093200 2001 2 1 64.106800 64.184 0.077200 2001 3 1 64.128200 64.184 0.055800 2001 4 1 64.158400 64.184 0.025600 2001 5 1 64.183300 64.184 0.000700 2001 6 1 64.209400 64.184 -0.025400 2001 7 1 64.211700 64.184 -0.027700 2001 8 1 64.207300 64.184 -0.023300 2001 9 1 64.211600 64.184 -0.027600 2001 10 1 64.222300 64.184 -0.038300 2001 11 1 64.250000 64.184 -0.066000 2001 12 1 64.276100 64.184 -0.092100 2002 1 1 64.299800 64.184 -0.115800 2002 2 1 64.319200 64.184 -0.135200 2002 3 1 64.345000 64.184 -0.161000 2002 4 1 64.373500 64.184 -0.189500 2002 5 1 64.394300 64.184 -0.210300 2002 6 1 64.415100 64.184 -0.231100 2002 7 1 64.413200 64.184 -0.229200 2002 8 1 64.411800 64.184 -0.227800 2002 9 1 64.409700 64.184 -0.225700 2002 10 1 64.416800 64.184 -0.232800 2002 11 1 64.432900 64.184 -0.248900 2002 12 1 64.451100 64.184 -0.267100 2003 1 1 64.473400 64.184 -0.289400 2003 2 1 64.489300 64.184 -0.305300 2003 3 1 64.505300 64.184 -0.321300 2003 4 1 64.526900 64.184 -0.342900 2003 5 1 64.547100 64.184 -0.363100 2003 6 1 64.559700 64.184 -0.375700 2003 7 1 64.551200 64.184 -0.367200 2003 8 1 64.537100 64.184 -0.353100 2003 9 1 64.535900 64.184 -0.351900 2003 10 1 64.541500 64.184 -0.357500 2003 11 1 64.554400 64.184 -0.370400 2003 12 1 64.565400 64.184 -0.381400 2004 1 1 64.573600 64.184 -0.389600 2004 2 1 64.589100 64.184 -0.405100 2004 3 1 64.601500 64.184 -0.417500 2004 4 1 64.617600 64.184 -0.433600 2004 5 1 64.637400 64.184 -0.453400 2004 6 1 64.654900 64.184 -0.470900 2004 7 1 64.653000 64.184 -0.469000 2004 8 1 64.637900 64.184 -0.453900 2004 9 1 64.637200 64.184 -0.453200 2004 10 1 64.640000 64.184 -0.456000 2004 11 1 64.654300 64.184 -0.470300 2004 12 1 64.672300 64.184 -0.488300 2005 1 1 64.687600 64.184 -0.503600 2005 2 1 64.705200 64.184 -0.521200 2005 3 1 64.731300 64.184 -0.547300 2005 4 1 64.757500 64.184 -0.573500 2005 5 1 64.781100 64.184 -0.597100 2005 6 1 64.800100 64.184 -0.616100 2005 7 1 64.799500 64.184 -0.615500 2005 8 1 64.787600 64.184 -0.603600 2005 9 1 64.783100 64.184 -0.599100 2005 10 1 64.792100 64.184 -0.608100 2005 11 1 64.809600 64.184 -0.625600 2005 12 1 64.831100 64.184 -0.647100 2006 1 1 64.845200 65.184 0.338800 2006 2 1 64.859700 65.184 0.324300 2006 3 1 64.885000 65.184 0.299000 2006 4 1 64.917500 65.184 0.266500 2006 5 1 64.948000 65.184 0.236000 2006 6 1 64.979400 65.184 0.204600 2006 7 1 64.989500 65.184 0.194500 2006 8 1 65.002800 65.184 0.181200 2006 9 1 65.013800 65.184 0.170200 2006 10 1 65.037100 65.184 0.146900 2006 11 1 65.077300 65.184 0.106700 2006 12 1 65.112200 65.184 0.071800 2007 1 1 65.146400 65.184 0.037600 2007 2 1 65.183300 65.184 0.000700 2007 3 1 65.214500 65.184 -0.030500 2007 4 1 65.249400 65.184 -0.065400 2007 5 1 65.292100 65.184 -0.108100 2007 6 1 65.327900 65.184 -0.143900 2007 7 1 65.341300 65.184 -0.157300 2007 8 1 65.345200 65.184 -0.161200 2007 9 1 65.349600 65.184 -0.165600 2007 10 1 65.371100 65.184 -0.187100 2007 11 1 65.397200 65.184 -0.213200 2007 12 1 65.429600 65.184 -0.245600 2008 1 1 65.457300 65.184 -0.273300 2008 2 1 65.486800 65.184 -0.302800 2008 3 1 65.515200 65.184 -0.331200 2008 4 1 65.545000 65.184 -0.361000 2008 5 1 65.578100 65.184 -0.394100 2008 6 1 65.612700 65.184 -0.428700 2008 7 1 65.628800 65.184 -0.444800 2008 8 1 65.637000 65.184 -0.453000 2008 9 1 65.649300 65.184 -0.465300 2008 10 1 65.676000 65.184 -0.492000 2008 11 1 65.709700 65.184 -0.525700 2008 12 1 65.746100 65.184 -0.562100 2009 1 1 65.776800 66.184 0.407200 2009 2 1 65.802500 66.184 0.381500 2009 3 1 65.823700 66.184 0.360300 2009 4 1 65.859500 66.184 0.324500 2009 5 1 65.897300 66.184 0.286700 2009 6 1 65.932300 66.184 0.251700 2009 7 1 65.950900 66.184 0.233100 2009 8 1 65.953400 66.184 0.230600 2009 9 1 65.962800 66.184 0.221200 2009 10 1 65.983900 66.184 0.200100 2009 11 1 66.014700 66.184 0.169300 2009 12 1 66.042000 66.184 0.142000 2010 1 1 66.069900 66.184 0.114100 2010 2 1 66.096100 66.184 0.087900 2010 3 1 66.131000 66.184 0.053000 2010 4 1 66.168300 66.184 0.015700 2010 5 1 66.207200 66.184 -0.023200 2010 6 1 66.235600 66.184 -0.051600 2010 7 1 66.240900 66.184 -0.056900 2010 8 1 66.233500 66.184 -0.049500 2010 9 1 66.234900 66.184 -0.050900 2010 10 1 66.244100 66.184 -0.060100 2010 11 1 66.275100 66.184 -0.091100 2010 12 1 66.305400 66.184 -0.121400 2011 1 1 66.324600 66.184 -0.140600 2011 2 1 66.340600 66.184 -0.156600 2011 3 1 66.362400 66.184 -0.178400 2011 4 1 66.395700 66.184 -0.211700 2011 5 1 66.428900 66.184 -0.244900 2011 6 1 66.461900 66.184 -0.277900 2011 7 1 66.474900 66.184 -0.290900 2011 8 1 66.475100 66.184 -0.291100 2011 9 1 66.482900 66.184 -0.298900 2011 10 1 66.505600 66.184 -0.321600 2011 11 1 66.538300 66.184 -0.354300 2011 12 1 66.570600 66.184 -0.386600 2012 1 1 66.603000 66.184 -0.419000 2012 2 1 66.634000 66.184 -0.450000 2012 3 1 66.656900 66.184 -0.472900 2012 4 1 66.692500 66.184 -0.508500 2012 5 1 66.728900 66.184 -0.544900 2012 6 1 66.757900 66.184 -0.573900 2012 7 1 66.770800 67.184 0.413200 2012 8 1 66.774000 67.184 0.410000 2012 9 1 66.784600 67.184 0.399400 2012 10 1 66.810300 67.184 0.373700 2012 11 1 66.840000 67.184 0.344000 2012 12 1 66.877900 67.184 0.306100 2013 1 1 66.906900 67.184 0.277100 2013 2 1 66.944300 67.184 0.239700 2013 3 1 66.976300 67.184 0.207700 2013 4 1 67.025800 67.184 0.158200 2013 5 1 67.071600 67.184 0.112400 2013 6 1 67.110000 67.184 0.074000 2013 7 1 67.126600 67.184 0.057400 2013 8 1 67.133100 67.184 0.050900 2013 9 1 67.145800 67.184 0.038200 2013 10 1 67.171700 67.184 0.012300 2013 11 1 67.209100 67.184 -0.025100 2013 12 1 67.246000 67.184 -0.062000 2014 1 1 67.281000 67.184 -0.097000 2014 2 1 67.313600 67.184 -0.129600 2014 3 1 67.345700 67.184 -0.161700 2014 4 1 67.389000 67.184 -0.205000 2014 5 1 67.431800 67.184 -0.247800 2014 6 1 67.466600 67.184 -0.282600 2014 7 1 67.485800 67.184 -0.301800 2014 8 1 67.498900 67.184 -0.314900 2014 9 1 67.511100 67.184 -0.327100 2014 10 1 67.535300 67.184 -0.351300 2014 11 1 67.571100 67.184 -0.387100 2014 12 1 67.607000 67.184 -0.423000 2015 1 1 67.643900 67.184 -0.459900 2015 2 1 67.676500 67.184 -0.492500 2015 3 1 67.711700 67.184 -0.527700 2015 4 1 67.759100 67.184 -0.575100 2015 5 1 67.801100 67.184 -0.617100 2015 6 1 67.840200 67.184 -0.656200 2015 7 1 67.860600 68.184 0.323400 2015 8 1 67.882200 68.184 0.301800 2015 9 1 67.912000 68.184 0.272000 2015 10 1 67.954600 68.184 0.229400 2015 11 1 68.005500 68.184 0.178500 2015 12 1 68.051400 68.184 0.132600 2016 1 1 68.102400 68.184 0.081600 2016 2 1 68.157700 68.184 0.026300 2016 3 1 68.204400 68.184 -0.020400 2016 4 1 68.266500 68.184 -0.082500 2016 5 1 68.318800 68.184 -0.134800 2016 6 1 68.370300 68.184 -0.186300 2016 7 1 68.396400 68.184 -0.212400 2016 8 1 68.409400 68.184 -0.225400 2016 9 1 68.430500 68.184 -0.246500 2016 10 1 68.463000 68.184 -0.279000 2016 11 1 68.507800 68.184 -0.323800 2016 12 1 68.553722 68.184 -0.369722 IERS-B347 final 2017 1 1 68.592703 69.184 0.591297 IERS-B348 final 2017 2 1 68.629807 69.184 0.554193 IERS-B349 final 2017 3 1 68.667082 69.184 0.516918 IERS-B350 final 2017 4 1 68.713531 69.184 0.470469 IERS-B351 final 2017 5 1 68.762404 69.184 0.421596 IERS-B352 final 2017 6 1 68.803261 69.184 0.380739 IERS-B353 final 2017 7 1 68.824528 69.184 0.359472 IERS-B354 final 2017 8 1 68.837348 69.184 0.346652 IERS-B355 final 2017 9 1 68.847693 69.184 0.336307 IERS-B356 final 2017 10 1 68.868808 69.184 0.315192 IERS-B357 final 2017 11 1 68.900565 69.184 0.283435 IERS-B358 final 2017 12 1 68.935477 69.184 0.248523 IERS-B359 final 2018 1 1 68.967630 69.184 0.216370 IERS-B360 final 2018 2 1 68.987499 69.184 0.196501 IERS-B361 final 2018 3 1 69.017539 69.184 0.166461 IERS-B362 final 2018 4 1 69.049955 69.184 0.134045 IERS-B363 final 2018 5 1 69.082371 69.184 0.101629 IERS-B364 final 2018 6 1 69.107056 69.184 0.076944 IERS-B365 final 2018 7 1 69.113252 69.184 0.070748 IERS-B366 final 2018 8 1 69.114265 69.184 0.069735 IERS-B367 final 2018 9 1 69.120745 69.184 0.063255 IERS-B368 final 2018 10 1 69.135609 69.184 0.048391 IERS-B369 final 2018 11 1 69.164630 69.184 0.019370 IERS-B370 final 2018 12 1 69.196514 69.184 -0.012514 IERS-B371 final 2019 1 1 69.220176 69.184 -0.036176 IERS-B372 final 2019 2 1 69.245210 69.184 -0.061210 IERS-B373 final 2019 3 1 69.273322 69.184 -0.089322 IERS-B374 final 2019 4 1 69.303181 69.184 -0.119181 IERS-B375 final 2019 5 1 69.332556 69.184 -0.148556 IERS-B376 final 2019 6 1 69.354045 69.184 -0.170045 IERS-B377 final 2019 7 1 69.358180 69.184 -0.174180 IERS-B378 final 2019 8 1 69.344227 69.184 -0.160227 IERS-B379 final 2019 9 1 69.337623 69.184 -0.153623 IERS-B380 final 2019 10 1 69.337749 69.184 -0.153749 IERS-B381 final 2019 11 1 69.343204 69.184 -0.159204 IERS-B382 final 2019 12 1 69.354000 69.184 -0.170000 IERS-B383 final 2020 1 1 69.361130 69.184 -0.177130 IERS-B384 final 2020 2 1 69.375172 69.184 -0.191172 IERS-B385 final 2020 3 1 69.388967 69.184 -0.204967 IERS-B386 final 2020 4 1 69.409168 69.184 -0.225168 IERS-B387 final 2020 5 1 69.426474 69.184 -0.242474 IERS-B388 final 2020 6 1 69.438651 69.184 -0.254651 IERS-B389 final 2020 7 1 69.424154 69.184 -0.240154 IERS-B390 final 2020 8 1 69.392120 69.184 -0.208120 IERS-B391 final 2020 9 1 69.369345 69.184 -0.185345 IERS-B392 final 2020 10 1 69.357436 69.184 -0.173436 IERS-B393 final 2020 11 1 69.359321 69.184 -0.175321 IERS-B394 final 2020 12 1 69.363005 69.184 -0.179005 IERS-B395 final 2021 1 1 69.359376 69.184 -0.175376 IERS-B396 final 2021 2 1 69.351020 69.184 -0.167020 IERS-B397 final 2021 3 1 69.353788 69.184 -0.169788 IERS-B398 final 2021 4 1 69.358220 69.184 -0.174220 IERS-B399 final 2021 5 1 69.367309 69.184 -0.183309 IERS-B400 final 2021 6 1 69.367876 69.184 -0.183876 IERS-B401 final 2021 7 1 69.351425 69.184 -0.167425 IERS-B402 final 2021 8 1 69.327354 69.184 -0.143354 IERS-B403 final 2021 9 1 69.303307 69.184 -0.119307 IERS-B404 final 2021 10 1 69.289257 69.184 -0.105257 IERS-B405 final 2021 11 1 69.288062 69.184 -0.104062 IERS-B406 final 2021 12 1 69.290822 69.184 -0.106822 IERS-B407 final 2022 1 1 69.294520 69.184 -0.110520 IERS-B408 final 2022 2 1 69.291399 69.184 -0.107399 IERS-B409 final 2022 3 1 69.286143 69.184 -0.102143 IERS-B410 final 2022 4 1 69.283503 69.184 -0.099503 IERS-B411 final 2022 5 1 69.281526 69.184 -0.097526 IERS-B412 final 2022 6 1 69.279911 69.184 -0.095911 IERS-B413 final 2022 7 1 69.252666 69.184 -0.068666 IERS-B414 final 2022 8 1 69.221389 69.184 -0.037389 IERS-B415 final 2022 9 1 69.197484 69.184 -0.013484 IERS-B416 final 2022 10 1 69.188904 69.184 -0.004904 IERS-B417 final 2022 11 1 69.194177 69.184 -0.010177 IERS-B418 final 2022 12 1 69.203604 69.184 -0.019604 IERS-B419 final 2023 1 1 69.203797 69.184 -0.019797 IERS-B420 final 2023 2 1 69.198601 69.184 -0.014601 IERS-B421 final 2023 3 1 69.199279 69.184 -0.015279 IERS-B422 final 2023 4 1 69.208345 69.184 -0.024345 IERS-B423 final 2023 5 1 69.218208 69.184 -0.034208 IERS-B424 final 2023 6 1 69.230039 69.184 -0.046039 IERS-B425 final 2023 7 1 69.220134 69.184 -0.036134 IERS-B426 final 2023 8 1 69.198801 69.184 -0.014801 IERS-B427 final 2023 9 1 69.181415 69.184 0.002585 IERS-B428 final 2023 10 1 69.172288 69.184 0.011712 IERS-B429 final 2023 11 1 69.172666 69.184 0.011334 IERS-B430 final 2023 12 1 69.172428 69.184 0.011572 IERS-B431 final 2024 1 1 69.175184 69.184 0.008816 IERS-A2401 rapid 2024 2 1 69.179830 69.184 0.004170 IERS-A2401 prediction 2024 3 1 69.182400 69.184 0.001600 IERS-A2401 prediction 2024 4 1 69.189950 69.184 -0.005950 IERS-A2401 prediction 2024 5 1 69.200280 69.184 -0.016280 IERS-A2401 prediction 2024 6 1 69.200220 69.184 -0.016220 IERS-A2401 prediction 2024 7 1 69.184740 69.184 -0.000740 IERS-A2401 prediction 2024 8 1 69.157820 69.184 0.026180 IERS-A2401 prediction 2024 9 1 69.142760 69.184 0.041240 IERS-A2401 prediction 2024 10 1 69.147150 69.184 0.036850 IERS-A2401 prediction 2024 11 1 69.150390 69.184 0.033610 IERS-A2401 prediction 2024 12 1 69.155080 69.184 0.028920 IERS-A2401 prediction 2025 1 1 69.146340 69.184 0.037660 IERS-A2401 prediction 2025 2 1 69.143684 69.184 0.040316 GWG extension 2025 3 1 69.141035 69.184 0.042965 GWG extension 2025 4 1 69.138359 69.184 0.045641 GWG extension 2025 5 1 69.135108 69.184 0.048892 GWG extension 2025 6 1 69.131913 69.184 0.052087 GWG extension 2025 7 1 69.129045 69.184 0.054955 GWG extension 2025 8 1 69.127616 69.184 0.056384 GWG extension 2025 9 1 69.126805 69.184 0.057195 GWG extension 2025 10 1 69.125503 69.184 0.058497 GWG extension 2025 11 1 69.123468 69.184 0.060532 GWG extension 2025 12 1 69.120601 69.184 0.063399 GWG extension 2026 1 1 69.117727 69.184 0.066273 GWG extension 2026 2 1 69.115071 69.184 0.068929 GWG extension 2026 3 1 69.112422 69.184 0.071578 GWG extension 2026 4 1 69.109746 69.184 0.074254 GWG extension 2026 5 1 69.106495 69.184 0.077505 GWG extension 2026 6 1 69.103300 69.184 0.080700 GWG extension 2026 7 1 69.100432 69.184 0.083568 GWG extension 2026 8 1 69.099003 69.184 0.084997 GWG extension 2026 9 1 69.098192 69.184 0.085808 GWG extension 2026 10 1 69.096890 69.184 0.087110 GWG extension 2026 11 1 69.094855 69.184 0.089145 GWG extension 2026 12 1 69.091988 69.184 0.092012 GWG extension 2027 1 1 69.089114 69.184 0.094886 GWG extension 2027 2 1 69.086458 69.184 0.097542 GWG extension 2027 3 1 69.083809 69.184 0.100191 GWG extension 2027 4 1 69.081133 69.184 0.102867 GWG extension 2027 5 1 69.077882 69.184 0.106118 GWG extension 2027 6 1 69.074687 69.184 0.109313 GWG extension 2027 7 1 69.071819 69.184 0.112181 GWG extension 2027 8 1 69.070390 69.184 0.113610 GWG extension 2027 9 1 69.069579 69.184 0.114421 GWG extension 2027 10 1 69.068277 69.184 0.115723 GWG extension 2027 11 1 69.066242 69.184 0.117758 GWG extension 2027 12 1 69.063375 69.184 0.120625 GWG extension 2028 1 1 69.060501 69.184 0.123499 GWG extension end 01/04/2024 23:10:18 UTC ftp://maia.usno.navy.mil/ser7/deltat.data After ftp-data, IERS data used. IERS-Ayyww denotes data from Bulletin A year 20yy, week ww. IERS-Bnnn denotes data from Bulletin B, number nnn. After IERS data, GWG's extended predictions are listed.