COSMIC RAY RESEARCH UNIT, POTCHEFSTROOM UNIVERSITY, POTCHEFSTROOM SOUTH AFRICA 3NM64 NEUTRON MONITOR SANAE, ANTARCTICA COORDINATES 70 19 S, 02 21 W ALTITUDE 52 METERS BAROMETRIC PRESSURE IN QUANTITIES OF 0.1 mB 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 1986 335 9848 9847 9844 9844 9843 9842 9843 9844 9845 9846 9847 9846 9845 9846 9835 0 9841 9839 9840 9838 9836 9833 9831 9830 9841.4 23 2 12 1986 336 9830 9820 9831 9831 9833 9834 9835 9836 9838 9839 9838 9838 9838 9837 9836 9836 9834 9831 9830 9829 9827 9826 9824 9821 9832.2 24 3 12 1986 337 9819 9817 9814 9812 9810 9810 9809 9807 9805 9802 9800 9799 9798 9796 9793 9791 9787 9783 9781 9778 9776 9772 9769 9766 9795.6 24 4 12 1986 338 9764 9763 9762 9759 9757 9758 9762 9764 9767 9768 9772 9776 9778 9780 9779 9779 9780 9779 9779 9780 9781 9782 9784 9785 9772.4 24 5 12 1986 339 9784 9786 9788 9787 9787 9788 9789 9790 9792 9793 9795 9797 9799 9799 9800 9801 9802 9804 9806 9811 9815 9817 9820 9824 9798.9 24 6 12 1986 340 9827 9831 9833 9835 9840 9843 9846 9848 9849 9851 9854 9855 9856 9857 9859 9858 9856 9854 9854 9858 9858 9858 9859 9858 9849.9 24 7 12 1986 341 9858 9859 9861 9864 9870 9876 9881 9886 9890 9893 9895 9896 9896 9894 9895 9893 9892 9892 9894 9895 9894 9893 9890 9889 9885.3 24 8 12 1986 342 9889 9886 9883 9882 9881 9879 9879 9878 9876 9875 9871 9869 9867 9862 9856 9853 9849 9845 9840 0 9834 9832 9827 9824 9862.5 23 9 12 1986 343 9821 9817 9815 9813 9810 9809 9810 9810 9811 9811 9809 9809 9806 9805 9805 9805 9806 9806 9807 9807 9809 9809 9809 9809 9809.5 24 10 12 1986 344 9808 9808 9806 9804 9802 9801 9800 9798 9795 9793 9788 9782 9777 9769 9762 9755 9752 9750 9751 9753 9756 9756 9757 9757 9778.3 24 11 12 1986 345 9758 9760 9764 9767 9772 9776 9781 9785 9789 9794 9798 9803 9807 9810 9812 9814 9816 9817 9819 9821 9821 9819 9817 9814 9797.3 24 12 12 1986 346 9809 9804 9798 9792 9786 9783 9780 9777 9773 9767 9760 9754 9749 9742 9736 9730 9726 9722 9721 9720 9720 9719 9719 9718 9754.4 24 13 12 1986 347 9716 9712 9711 9709 9707 9708 9710 9711 9717 9722 9726 9727 9728 9730 9729 9731 9731 9732 9734 9738 9741 9743 9743 9743 9725.0 24 14 12 1986 348 9744 9745 9745 9745 9746 9748 9751 9754 9757 9758 9760 9761 9760 9759 9762 9768 9772 9777 9781 9784 9790 9794 9801 9806 9765.3 24 15 12 1986 349 9809 9813 9816 9822 9824 9828 9831 9838 9842 9844 9846 9847 9848 9850 9849 9849 9849 9849 9849 9849 9850 9850 9851 9851 9839.8 24 16 12 1986 350 9851 9853 9852 9852 9851 9852 9852 9853 9853 9851 9851 9848 9845 9843 9841 9838 9835 9833 9830 9827 9823 9820 9818 9817 9841.2 24 17 12 1986 351 9815 9812 9810 9808 9807 9808 9809 9811 9812 9812 9814 9816 9817 9818 9818 9818 9818 9820 9821 9822 9822 9821 9822 9823 9815.6 24 18 12 1986 352 9824 9822 9821 9820 9818 9817 9816 9817 9815 9813 0 9811 9807 9803 9799 9796 9784 9788 9784 9780 9777 9773 9767 9764 9800.7 23 19 12 1986 353 9763 9760 9756 9755 9752 9749 9751 9754 9755 9755 9754 9752 9753 9752 9744 9754 9755 9755 9759 9761 9764 9764 9766 9766 9756.2 24 20 12 1986 354 9766 9764 9764 9764 9763 9764 9763 9762 9762 9759 9756 9754 9752 9751 9749 9747 9745 9743 9741 9741 9741 9740 9742 9742 9753.1 24 21 12 1986 355 9743 9744 9744 9743 9743 9745 9746 9746 9746 9744 9743 9743 9742 9741 9740 9740 9740 9740 9742 9743 9743 9744 9744 9745 9743.1 24 22 12 1986 356 9747 9748 9750 9751 9751 9752 9755 9759 9760 9761 9761 9762 9763 9764 9764 9765 9764 9765 9767 9768 9769 9768 9769 9770 9760.5 24 23 12 1986 357 9771 9772 9771 9771 9771 9771 9772 9772 9772 9771 9769 9768 9766 9763 9760 9758 9754 9751 9749 9747 9744 9741 9737 9735 9760.7 24 24 12 1986 358 9732 9728 9726 9723 9719 9718 9718 9715 9712 9711 9710 9708 9707 9705 9704 9701 9698 9697 9697 9697 9697 9697 9698 9699 9709.0 24 25 12 1986 359 9700 9702 9704 9705 9708 9713 9718 9723 9729 9735 9740 9746 9751 9756 9760 9765 9770 9775 9780 9784 9788 9791 9795 9800 9747.4 24 26 12 1986 360 9803 9805 9805 9806 9808 9812 9817 9820 9821 9821 9822 9823 9822 9821 9821 9820 9808 9815 9813 9812 9812 9812 0 9810 9814.3 23 27 12 1986 361 9808 9807 9804 9802 9802 9799 9798 9798 9797 9793 9787 9780 9772 9764 9755 9743 9731 9720 9712 9701 9692 9679 9669 9661 9757.3 24 28 12 1986 362 9644 9636 9632 9630 9629 9628 9626 9627 9630 9629 9629 9629 9631 9634 9636 9639 9641 9645 9648 9651 9655 9661 9663 9663 9639.0 24 29 12 1986 363 9662 9662 9663 9665 9668 9671 9675 9679 9684 9690 9696 9701 9705 9709 9711 9713 9714 9717 9719 9721 9723 9723 9725 9725 9696.7 24 30 12 1986 364 9724 9721 9720 9717 9715 9713 9712 9712 9712 9713 9714 9713 9712 9705 9712 9711 9710 9709 9710 9711 9704 9712 9705 9716 9712.6 24 31 12 1986 365 9718 9721 9722 9724 9727 9731 9735 9737 9742 9745 9750 9753 9756 9756 9756 9754 9754 9752 9753 9754 9755 9757 9760 9763 9744.8 24 MONTHLY MEANS 9779 9778 9778 9777 9777 9778 9780 9781 9782 9783 9782 9783 9782 9781 9780 9778 9778 9778 9778 9776 9778 9778 9776 9777 9779.1 P-12