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 1982 335 1841 1840 1839 1841 1858 1850 1890 1893 1919 1932 1920 1930 1921 1909 1895 1885 1887 1880 1871 1853 1861 1846 1851 1851 1877.6 24 2 12 1982 336 1856 1843 1862 1872 1868 1885 1893 1896 1905 1905 1908 1924 1907 1910 1903 1885 1869 1869 1854 1855 1858 1854 1863 1871 1879.8 24 3 12 1982 337 1860 1854 1847 1862 1860 1855 1860 1855 1874 1858 1863 1883 1885 1883 1899 1911 1897 1894 1899 1884 1885 1900 1891 1891 1877.1 24 4 12 1982 338 1899 1904 1904 1905 1910 1898 1912 1922 1930 1924 1925 1941 1927 1927 1922 1917 1915 1924 1926 1900 1881 1887 1906 1912 1913.3 24 5 12 1982 339 1910 1921 1928 1931 1923 1925 1929 1922 1928 1931 1939 1932 1946 1922 1934 1921 1912 1922 1930 1918 1914 1920 1901 1924 1924.3 24 6 12 1982 340 1918 1914 1915 1915 1927 1924 1915 1923 1905 1919 1915 1905 1909 1932 1915 1910 1910 1915 1889 1899 1908 1904 1899 1897 1911.8 24 7 12 1982 341 1892 1876 1880 1890 1889 1889 1873 1874 1869 1869 1878 1871 1887 1900 1905 1916 1904 1901 1901 1906 1901 1902 1901 1890 1890.2 24 8 12 1982 342 1894 1884 1887 1892 1883 1880 1887 1896 1882 1905 1898 1909 1909 1903 1913 1903 1904 1914 1906 1912 1914 1905 1902 1900 1899.3 24 9 12 1982 343 1908 1910 1889 1886 1891 1894 1885 1889 1901 1909 1890 1902 1893 1890 1900 1896 1890 1900 1898 1893 1895 1897 1887 1891 1895.2 24 10 12 1982 344 1886 1904 1879 1892 1889 1893 1879 1884 1897 1894 1909 1877 1829 1839 1849 1843 1856 1851 1854 1859 1858 1847 1824 1836 1867.8 24 11 12 1982 345 1829 1845 1828 1846 1831 1827 1831 1846 1828 1828 1828 1825 1824 1829 1836 1821 1838 1833 1841 1852 1838 1848 1838 1854 1835.2 24 12 12 1982 346 1839 1836 1821 1836 1815 1827 1820 1819 1838 1828 1829 1824 1842 1835 1836 1825 1838 1829 1825 1846 1825 1844 1837 1819 1830.5 24 13 12 1982 347 1839 1829 1828 1835 1819 1833 1835 1828 1834 1837 1830 1842 1835 1846 1837 1844 1844 1844 1844 1849 1845 1837 1856 1851 1838.4 24 14 12 1982 348 1844 1845 1852 1844 1844 1843 1842 1834 1837 1845 1850 1850 1857 1849 1846 1860 1838 1841 1836 1849 1843 1846 1863 1836 1845.6 24 15 12 1982 349 1850 1851 1856 1856 1837 1844 1867 1855 1862 1866 1852 1855 1859 1850 1863 1846 1855 1845 1840 1854 1846 1859 1846 1845 1852.5 24 16 12 1982 350 1850 1840 1849 1862 1858 1872 1853 1855 1849 1850 1864 1866 1857 1865 1892 1872 1879 1888 1870 1858 1885 1874 1874 1871 1864.7 24 17 12 1982 351 1872 1889 1874 1874 1874 1882 1886 1894 1895 1876 1897 1914 1904 1913 1926 1875 1856 1864 1850 1842 1857 1860 1854 1859 1878.6 24 18 12 1982 352 1861 1854 1859 1854 1858 1854 1850 1852 1854 1864 1857 1859 1851 1832 1832 1838 1843 1826 1825 1837 1846 1831 1848 1848 1847.2 24 19 12 1982 353 1846 1843 1841 1835 1822 1834 1835 1828 1838 1834 1845 1854 1874 1862 1855 1847 1856 1853 1839 1838 1848 1837 1842 1833 1843.3 24 20 12 1982 354 1833 1827 1829 1835 1838 1841 1842 1839 1830 1835 1832 1833 1845 1852 1851 1863 1864 1848 1861 1852 1834 1843 1851 1848 1842.8 24 21 12 1982 355 1834 1843 1850 1833 1837 1839 1845 1850 1861 1858 1864 1866 1862 1865 1873 1875 1888 1883 1888 1892 1888 1875 1867 1874 1862.9 24 22 12 1982 356 1876 1880 1865 1878 1883 1885 1863 1877 1891 1879 1878 1880 1868 1863 1844 1880 1878 1880 1874 1873 1870 1865 1870 1838 1872.4 24 23 12 1982 357 1849 1823 1831 1834 1845 1848 1839 1854 1856 1852 1870 1874 1883 1884 1883 1890 1901 1905 1882 1896 1902 1888 1898 1888 1869.8 24 24 12 1982 358 1893 1907 1895 1900 1894 1889 1903 1902 1904 1914 1904 1929 1925 1921 1924 1931 1918 1919 1921 1914 1914 1917 1909 1905 1910.5 24 25 12 1982 359 1906 1897 1900 1919 1907 1911 1907 1905 1908 1905 1891 1918 1914 1923 1923 1933 1920 1906 1902 1909 1896 1888 1880 1905 1907.2 24 26 12 1982 360 1887 1891 1894 1898 1901 1899 1894 1890 1909 1903 1919 1910 1914 1914 1921 1913 1927 1910 1919 1918 1913 1919 1896 1914 1907.2 24 27 12 1982 361 1900 1905 1904 1907 1900 1891 1891 1895 1894 1899 1883 1895 1901 1888 1892 1899 1895 1887 1883 1885 1877 1895 1870 1856 1891.3 24 28 12 1982 362 1870 1864 1854 1856 1865 1858 1851 1841 1857 1848 1850 1845 1846 1848 1853 1851 1848 1836 1852 1849 1865 1855 1855 1856 1853.0 24 29 12 1982 363 1860 1843 1845 1857 1873 1863 1855 1864 1864 1868 1852 1879 1865 1866 1856 1862 1866 1865 1865 1866 1868 1860 1872 1870 1862.7 24 30 12 1982 364 1876 1870 1861 1864 1870 1861 1863 1857 1874 1868 1871 1862 1879 1865 1870 1870 1874 1888 1889 1888 1879 1879 1902 1884 1873.5 24 31 12 1982 365 1885 1885 1878 1895 1884 1881 1878 1892 1880 1901 1894 1876 1908 1880 1895 1897 1892 1876 1882 1893 1900 1900 1896 1886 1888.9 24 MONTHLY MEANS 1870 1868 1866 1871 1869 1870 1870 1872 1877 1878 1878 1882 1881 1880 1882 1880 1879 1877 1875 1875 1875 1874 1873 1871 1874.7 C-12