1981 OBSERVED DAILY SOLAR FLUX 1981 Ottawa 2800 MHz Series C (Multiplied by Ten) 1700 UT =============================================================================== Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ------------------------------------------------------------------------------- 1 1962 2135 2285* 2110* 1850 1454 1696 1785 2439 2102* 2259* 2373* 2 1876 2164 2346* 2114* 1904 1402 1633 1773 2385 2046* 2452* 2369* 3 1790 2115* 2430* 2212 2030* 1311 1579* 1868 2252 1963 2595* 2457 4 1725 2032 2496* 2195 2175 1300 1604 1852* 2295 1911 2676 2489 5 1673 1932 2310 2260 2333 1320 1475 1738 2448 1936* 2585 2678 6 1628 1907* 2159 2352 2271 1365 1438 1745 2591* 2005 2491 2699 7 1744* 1855* 2045 2418 2298 1424 1449 1683 2586* 2043* 2458 2841* 8 1750 1841 2034* 2680* 2183* 1424* 1474 1735 2624* 2011* 2392* 2967 9 1727 1816 2058 2868 2145 1482 1451* 1756 2530 2060* 2371 3014* 10 1702 1901 2058 2677* 2134* 1524 1514* 1772 2442 2140 2357* 2873 11 1660 1914* 2023 2707 2236* 1501 1619 2010 2377 2209 2214 2752* 12 1619 1957* 1911 2506 2188 1474 1623* 2035* 2312A 2378* 2283 2623* 13 1635 2029 2046 2534* 2167 1479 1686* 2034 2272 2575 2205 2259 14 1592 2054 2112 2550* 2275 1542 1783 2029 2258* 2770 2118 1992 15 1549 1985 2086* 2531* 2191 1596 1883* 2194 2279 2888 1955 1781 16 1575 1915 1969 2458* 2140 1639 1987* 2164* 2250 3045 1853 1626 17 1604 1927* 1833 2408 2029 1659 1944* 2231 2160* 3050 1768 1490 18 1663 1947* 1816 2272 1898 1647 1982* 2381 2146* 2989* 1646* 1408* 19 1709 1830 1765 2130 1822* 1606 2133 2486* 2086* 2808 1609 1340 20 1652* 1925 1842 1989* 1758 1547 2272* 2635 1985 2601* 1557 1383 21 1618 1942* 1908 1942 1760 1487 2210* 2611* 1897 2404 1577 1469 22 1614 2040 1907* 1894 1652* 1608* 2286 2563* 1817 2208 1566 1507 23 1618 2226* 1891* 2027 1556 1657* 2468* 2493 1825 2103 1558 1582 24 1623 2365* 1926 2006* 1655 1690 2535* 2533 1811 2033 1544 1614* 25 1746* 2386 2003 2014* 1727 1777 2516 2493 1811 1883 1633 1676 26 1802 2434 1994* 1962 1692 1875 2646* 2673* 1879 1741 1831* 1719 27 1812* 2400 1984 1920* 1723 1870 2481* 2758* 2020 1735 1956 1828 28 2033* 2293* 2043* 1757* 1765 1853 2169 2699 2001 1848 2121* 1892 29 2105 2130* 1743 1660 1813* 2069 2540 2039 1902 2328* 1899 30 2156 2086 1727 1601* 1731 1981* 2602 2032 2044 2383 1920 31 2153 2144* 1518 1918 2512* 2103 1890 ------------------------------------------------------------------------------- Mean 1746 2045 2053 2232 1946 1569 1919 2206 2195 2243 2078 2078 ------------------------------------------------------------------------------- * = corrected for burst in progress 1981 Yearly Mean =2026 A = interpolated