COSMIC RAY RESEARCH UNIT, POTCHEFSTROOM UNIVERSITY, POTCHEFSTROOM IGY NEUTRON MONITOR, POTCHEFSTROOM, SOUTH AFRICA COORDINATES 26 41 S, 27 06 E ALTITUDE 1351 METERS REAL COUNTS 100 TIMES TABULATED VALUES CORRECTED TO 652.4 MM HG CO-EFFICIENT 0.9900 PERCENT/MM HG DATE DAY UT 01 02 03 04 05 06 07 08 09 10 11 12 DAILY MEANS 13 14 15 16 17 18 19 20 21 22 23 24 1 12 1984 336 1962 1967 1979 1960 1980 1975 1973 1976 1965 1976 1982 1991 1970 1974 1974 1969 1960 1968 1968 1962 1964 1965 1954 1965 1970.0 24 2 12 1984 337 1965 1972 1975 1979 1981 1980 1981 1981 1962 1959 1976 1984 1971 1971 1966 1977 1963 1966 1967 1961 1971 1964 1966 1970 1971.2 24 3 12 1984 338 1968 1963 1956 1967 1966 1969 1980 1954 1975 1985 1985 1973 1968 1976 1983 1990 1971 1982 1971 1965 1974 1970 1971 1968 1972.1 24 4 12 1984 339 1977 1967 1974 1962 1979 1975 1974 1984 1957 1973 1981 1977 1980 1976 1967 1975 1967 1981 1981 1972 1961 1972 1961 1975 1972.8 24 5 12 1984 340 1958 1969 1972 1979 1977 1974 1987 1983 1977 1998 1987 1985 2003 2004 1997 1980 2004 1981 1982 1985 1983 1968 1965 1974 1982.2 24 6 12 1984 341 1978 1970 1974 1964 1969 1991 1979 1982 1988 1991 1994 1992 1991 1995 1994 1984 1987 1976 1975 1979 1978 1982 1975 1979 1982.0 24 7 12 1984 342 1984 1985 1996 1984 1982 1978 1982 1975 1995 1993 1982 1996 1992 1996 2002 2000 1995 1988 1985 1991 1987 1988 1986 1980 1988.4 24 8 12 1984 343 1979 1986 1977 1985 1986 1989 1997 1988 1998 2005 2008 1998 1996 1996 1990 2001 1982 1982 1976 1996 1997 1994 1993 1988 1991.1 24 9 12 1984 344 1985 1988 1980 2001 1997 1982 1993 1987 1990 1986 1998 1994 1990 1990 1990 1994 1993 1998 1998 1999 1990 2003 1992 1999 1992.4 24 10 12 1984 345 1988 1985 1991 1993 1991 1994 1993 1986 2001 1993 1976 1986 1996 1999 2013 2000 1992 2006 2003 1999 1993 1996 1999 1994 1994.5 24 11 12 1984 346 1987 1990 2002 1999 1992 1996 1980 2009 2004 1982 2000 1986 1993 2004 2004 2004 1991 1987 2001 1994 1991 1995 1998 2005 1995.6 24 12 12 1984 347 1994 1998 1984 1977 1958 1971 1964 1979 1984 1995 1997 1992 1994 2008 1978 1987 1999 2002 1980 1996 2004 2000 2003 1991 1989.0 24 13 12 1984 348 1995 1990 1982 1990 1983 1978 1979 1983 1992 1991 1994 1998 2009 2005 1997 2001 2013 1983 1991 1987 1984 1978 1987 1982 1990.5 24 14 12 1984 349 1982 1981 1982 1988 1998 1989 1998 2006 2012 2003 2006 1999 1999 2009 1998 2003 2007 1992 1985 2009 1996 1996 1992 1990 1996.7 24 15 12 1984 350 1983 1974 1983 2000 1984 1983 1999 1976 1991 1990 2003 2002 1993 1988 1983 1983 1981 1978 1978 1981 1964 1967 1982 1976 1984.3 24 16 12 1984 351 1987 1961 1967 1975 1992 1975 1975 1973 1988 1965 1990 1990 1990 2002 1978 1979 1979 1982 1990 1995 2008 1998 1984 1986 1983.7 24 17 12 1984 352 1992 1973 1981 1978 1976 1976 1989 1983 1997 1991 1998 1994 1983 1993 1999 2006 1999 1997 1990 1991 1987 1982 1986 1989 1988.8 24 18 12 1984 353 1973 1983 1981 1994 1994 1988 1992 1995 1983 2002 1998 1994 1985 1983 1976 1990 1991 1981 1980 1985 1979 1999 1983 1982 1987.1 24 19 12 1984 354 1984 1985 1984 1981 1990 1992 1989 1986 2000 1981 1992 1997 1989 2000 1984 1985 2000 1989 1990 1997 1988 1993 1992 1992 1990.0 24 20 12 1984 355 1995 1976 1997 1988 1993 2003 1992 1992 1994 2000 1991 1996 1995 2000 1991 1995 1988 2012 1989 2007 2010 1996 2006 1997 1996.0 24 21 12 1984 356 1997 1981 2003 1993 1990 1995 1996 1999 2013 2012 2021 2009 2000 2012 2000 2006 2001 1996 1983 1999 1990 1991 1993 1998 1999.1 24 22 12 1984 357 1990 1990 1989 1993 1996 1995 1987 1992 1994 1997 1990 2008 1995 1995 1985 2004 1997 1999 2009 1995 2005 1995 2001 2004 1996.0 24 23 12 1984 358 2005 1992 1987 1982 1976 1994 1976 1985 1984 1990 1995 1997 1985 1989 1999 2006 1989 1994 1985 1989 1996 2009 2008 1995 1992.0 24 24 12 1984 359 1994 1991 1988 1982 1986 1983 1984 1996 1991 1981 1996 1994 2000 1998 1997 2017 2004 1994 1988 1984 1988 1982 2001 1974 1991.4 24 25 12 1984 360 1987 1985 1981 1962 1971 1987 1996 2014 2010 1997 2002 2004 2005 2013 2005 2024 2003 1986 1972 2000 1986 1988 1988 1980 1993.6 24 26 12 1984 361 1985 1978 1982 1985 1997 1994 2007 2003 2014 2010 2015 2016 2024 2008 2001 1994 1972 1996 1982 1982 1986 1984 1982 1985 1995.1 24 27 12 1984 362 1978 1982 1972 1976 1971 1986 1970 1978 1969 1971 1989 1982 1988 1995 1996 1997 1998 1984 1992 1973 1972 1986 1999 1977 1982.5 24 28 12 1984 363 1984 1983 1992 1998 1996 1993 1984 1984 1984 1985 1980 1979 1993 1991 1973 1993 0 1985 1978 1970 1988 1960 1988 1953 1983.2 23 29 12 1984 364 1978 1969 1974 1983 2005 1979 1977 1980 1976 1993 1986 2008 1999 1984 1994 1982 1984 1975 1980 1981 1988 1978 1978 1976 1983.6 24 30 12 1984 365 1978 1984 1986 1987 1986 2004 1997 1994 1980 2001 1986 2010 1998 2003 1992 1987 1992 1999 1997 1995 2000 2005 1993 1995 1993.7 24 31 12 1984 366 1987 1987 2001 1982 2001 1995 1992 1999 1999 1994 1999 2000 2008 2006 2019 2013 1999 2007 1995 1999 1994 1993 1996 2002 1998.6 24 MONTHLY MEANS 1983 1980 1983 1983 1985 1986 1986 1987 1989 1990 1993 1995 1993 1996 1991 1994 1990 1989 1985 1988 1987 1986 1987 1985 1988.0 C-12