EQUINOX MEAN VALUES FOR QUIET DAYS CHICHIJIMA YEAR D I H X Y Z F Deg Min Deg Min nT nT nT nT nT 1973 -3 2.4 36 38.3 32557 32511 -1726 24214 40574 1974 -3 3.7 36 36.6 32577 32530 -1740 24204 40584 1975 -3 3.9 36 34.2 32597 32550 -1743 24183 40587 1976 -3 4.8 36 31.9 32622 32574 -1752 24168 40598 1977 -3 5.4 *1 36 29.9 *1 32650 *1 32602 *1 -1760 *1 24159 *1 40616 *1 1978 -3 6.8 36 28.1 32667 32619 -1773 24145 40621 1979 -3 7.7 36 26.2 32689 32639 -1784 24133 40631 1980 -3 8.0 36 24.0 32726 32677 -1789 24129 40660 1981 -3 9.6 36 24.4 32721 32671 -1803 24130 40656 1982 -3 10.9 36 26.8 32698 32647 -1814 24149 40649 1983 -3 11.0 *2 36 25.9 *2 32736 *2 32685 *2 -1817 *2 24164 *2 40689 *2 1984 -3 13.9 *2 36 27.9 *2 32737 *2 32684 *2 -1845 *2 24194 *2 40707 *2 1985 -3 14.9 36 28.7 32748 32695 -1855 24214 40728 1986 -3 15.8 36 30.2 32751 32697 -1864 24239 40745 1987 -3 16.2 *3 36 31.5 32761 32713 *3 -1869 *3 24264 40768 1988 - *3 36 31.8 *4 32767 *4 - *3 - *3 24273 *4 40778 *4 1989 -3 19.4 *3 36 35.5 *4 32755 *4 32700 *3 -1898 *3 24318 *4 40796 *4 1990 -3 20.7 36 37.6 32757 32701 -1911 24351 40817 1991 -3 22.2 36 39.5 32765 32708 -1926 24385 40843 1992 -3 23.6 36 43.1 32763 32705 -1938 24437 40873 1993 -3 25.2 36 47.8 32751 32692 -1953 24497 40899 1994 -3 26.3 36 52.0 32747 32687 -1963 24557 40931 1995 -3 27.1 *5 36 55.4 *5 32746 *5 32686 *5 -1971 *5 24607 *5 40961 *5 1996 -3 30.0 *5 37 0.5 *5 32732 *5 32670 *5 -1997 *5 24672 *5 40989 *5 1997 -3 31.0 37 3.1 32727 32665 -2007 24708 41006 1998 -3 32.6 37 7.2 32700 32638 -2021 24749 41008 *6 1999 -3 33.2 *7 37 9.1 *7 32693 *7 32630 *7 -2026 *7 24772 *7 41017 *7 2000 -3 34.8 *8 37 12.4 *8 32667 *8 32603 *8 -2039 *8 24802 *8 41016 *8 2001 -3 34.9 37 13.5 32652 32589 -2040 24807 41006 2002 -3 35.0 37 14.4 32645 32582 -2040 24814 41006 2003 -3 36.0 37 15.9 32625 32561 -2048 24822 40996 2004 -3 37.0 37 15.6 32628 32563 -2058 24820 40996 2005 -3 37.8 37 16.9 32616 32551 -2065 24830 40991 2006 -3 39.1 37 17.2 32622 32556 -2077 24839 41002 2007 -3 40.5 37 18.8 32618 32551 -2091 24860 41012 2008 -3 42.6 37 20.3 32618 32549 -2110 24883 41025 2009 -3 44.8 37 22.0 32624 32554 -2132 24912 41049 2010 -3 48.1 37 23.8 32626 32554 -2163 24941 41067 2011 -3 51.4 37 26.1 32626 32552 -2195 24975 41089 2012 -3 55.0 37 28.2 32633 32557 -2229 25013 41117 2013 -3 58.7 37 29.8 32653 32575 -2265 25053 41157 2014 -4 2.5 37 30.5 32675 32594 -2303 25079 41190 2015 -4 6.3 37 31.9 32691 32607 -2340 25114 41224 2016 -4 10.6 37 32.1 32720 32633 -2383 25138 41262 2017 -4 14.5 *9 37 32.8 *9 32737 *9 32648 *9 -2421 *9 25163 *9 41289 2018 -4 18.2 37 31.7 32770 32678 -2459 25171 41322 2019 -4 22.1 37 29.8 32807 32712 -2499 25171 41351 2020 -4 26.2 37 26.8 32848 32750 -2541 25156 41374 *10 2021 -4 29.7 37 24.2 32878 32777 -2577 25140 41389 2022 -4 32.7 37 22.8 32899 32795 -2607 25134 41400 *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