EQUINOX MEAN VALUES FOR DISTURBED DAYS CHICHIJIMA YEAR D I H X Y Z F Deg Min Deg Min nT nT nT nT nT 1973 -3 3.4 36 40.5 32520 32473 -1734 24218 40546 1974 -3 4.6 36 38.8 32539 32492 -1746 24208 40556 1975 -3 4.7 36 36.1 32565 32518 -1748 24187 40564 1976 -3 5.6 36 34.4 32578 32530 -1758 24172 40566 1977 -3 6.1 *1 36 31.8 *1 32617 *1 32569 *1 -1764 *1 24162 *1 40591 *1 1978 -3 7.8 36 30.6 32623 32574 -1781 24149 40588 1979 -3 8.5 36 28.5 32648 32598 -1789 24136 40600 1980 -3 8.8 36 25.9 32693 32644 -1794 24133 40635 1981 -3 10.5 36 27.2 32671 32621 -1809 24135 40619 1982 -3 12.1 36 30.6 32634 32583 -1822 24157 40602 1983 -3 12.0 *2 36 27.9 *2 32703 *2 32651 *2 -1825 *2 24168 *2 40664 *2 1984 -3 15.4 *2 36 30.8 *2 32687 *2 32634 *2 -1856 *2 24199 *2 40670 *2 1985 -3 15.2 36 30.4 32718 32665 -1857 24217 40706 1986 -3 16.3 36 31.4 32730 32676 -1867 24240 40728 1987 -3 16.0 *3 36 32.3 32747 32703 *3 -1866 *3 24265 40757 1988 - *3 36 34.9 *4 32721 *4 - *3 - *3 24284 *4 40747 *4 1989 -3 20.8 *3 36 38.9 *4 32695 *4 32638 *3 -1908 *3 24324 *4 40751 *4 1990 -3 21.8 36 40.1 32711 32654 -1919 24354 40782 1991 -3 23.7 36 44.0 32690 32632 -1935 24396 40789 1992 -3 24.4 36 45.3 32725 32666 -1944 24441 40845 1993 -3 25.9 36 50.0 32712 32653 -1957 24502 40871 1994 -3 27.3 36 54.6 32699 32639 -1970 24560 40895 1995 -3 27.7 *5 36 57.3 *5 32715 *5 32655 *5 -1975 *5 24613 *5 40939 *5 1996 -3 30.5 *5 37 1.9 *5 32710 *5 32648 *5 -2001 *5 24676 *5 40974 *5 1997 -3 31.5 37 4.4 32701 32639 -2010 24708 40986 1998 -3 33.2 37 9.0 32668 32605 -2025 24752 40986 *6 1999 -3 33.7 *7 37 11.0 *7 32661 *7 32598 *7 -2030 *7 24776 *7 40994 *7 2000 -3 35.5 *8 37 14.8 *8 32622 *8 32558 *8 -2043 *8 24804 *8 40981 *8 2001 -3 36.0 37 17.0 32591 32527 -2047 24813 40961 2002 -3 36.1 37 17.5 32592 32528 -2047 24820 40966 2003 -3 37.2 37 18.8 32574 32509 -2056 24827 40958 2004 -3 37.4 37 17.1 32603 32538 -2061 24824 40978 2005 -3 38.4 37 18.5 32588 32522 -2069 24833 40970 2006 -3 39.6 37 18.9 32593 32526 -2081 24843 40981 2007 -3 41.0 37 19.8 32601 32533 -2094 24862 41000 2008 -3 42.9 37 21.3 32600 32532 -2113 24884 41012 2009 -3 45.2 37 22.6 32614 32544 -2135 24913 41041 2010 -3 48.4 37 24.8 32607 32535 -2164 24943 41053 2011 -3 51.9 37 27.6 32600 32526 -2198 24978 41070 2012 -3 55.5 37 31.1 32586 32509 -2230 25021 41084 2013 -3 59.1 37 31.0 32632 32554 -2268 25054 41141 2014 -4 2.9 37 31.4 32659 32577 -2306 25081 41178 2015 -4 7.2 37 34.4 32647 32563 -2346 25117 41192 2016 -4 11.4 37 33.8 32690 32603 -2388 25141 41240 2017 -4 15.1 *9 37 34.6 *9 32705 *9 32615 *9 -2425 *9 25165 *9 41267 2018 -4 18.5 37 32.9 32751 32658 -2460 25174 41308 2019 -4 22.3 37 31.2 32785 32689 -2499 25174 41335 2020 -4 26.5 37 27.7 32831 32732 -2543 25157 41364 *10 2021 -4 30.1 37 25.2 32860 32759 -2579 25142 41375 2022 -4 33.3 37 24.1 32874 32770 -2610 25136 41380 *11 *1 From 1977/10/01 to 1977/10/31 are missed. *2 From 1983/11/07 to 1984/03/31 are missed. *3 From 1987/04/01 to 1989/01/22 are missed. *4 From 1988/04/01 to 1989/01/22 are missed. *5 From 1995/09/24 to 1996/05/12 are missed. *6 From 1998/01/09 to 1998/03/12 are missed. *7 From 1999/09/02 to 1999/11/17 are missed. *8 From 2000/09/15 to 2000/10/21 are missed. *9 From 2017/08/10 to 2017/09/22 are missed. *10 From 2020/07/01 to 2020/09/29 are missed. *11 From 2022/09/22 to 2022/10/26 are missed. Seasons are grouped as follows: Winter : January, February, November, December Equinox : March, April, September, October Summer : May, June, July, August