Year Month Day AAO index 1999 NOV 1 2.001 1999 NOV 2 2.474 1999 NOV 3 2.620 1999 NOV 4 1.819 1999 NOV 5 0.681 1999 NOV 6 -0.430 1999 NOV 7 -1.411 1999 NOV 8 -1.444 1999 NOV 9 -0.690 1999 NOV 10 -0.120 1999 NOV 11 -0.145 1999 NOV 12 -0.297 1999 NOV 13 -0.030 1999 NOV 14 0.391 1999 NOV 15 1.272 1999 NOV 16 1.547 1999 NOV 17 1.582 1999 NOV 18 1.313 1999 NOV 19 1.162 1999 NOV 20 1.353 1999 NOV 21 1.517 1999 NOV 22 1.333 1999 NOV 23 0.922 1999 NOV 24 0.721 1999 NOV 25 0.732 1999 NOV 26 0.850 1999 NOV 27 1.514 1999 NOV 28 1.537 1999 NOV 29 1.569 1999 NOV 30 1.634 1999 DEC 1 1.682 1999 DEC 2 1.447 1999 DEC 3 1.568 1999 DEC 4 2.076 1999 DEC 5 2.155 1999 DEC 6 2.189 1999 DEC 7 2.425 1999 DEC 8 2.818 1999 DEC 9 3.120 1999 DEC 10 2.884 1999 DEC 11 2.687 1999 DEC 12 2.324 1999 DEC 13 2.169 1999 DEC 14 1.763 1999 DEC 15 1.010 1999 DEC 16 0.531 1999 DEC 17 0.201 1999 DEC 18 0.370 1999 DEC 19 0.738 1999 DEC 20 0.835 1999 DEC 21 0.866 1999 DEC 22 1.285 1999 DEC 23 1.755 1999 DEC 24 1.959 1999 DEC 25 1.744 1999 DEC 26 1.345 1999 DEC 27 1.542 1999 DEC 28 1.886 1999 DEC 29 1.853 1999 DEC 30 2.055 1999 DEC 31 1.954 2000 JAN 1 1.687 2000 JAN 2 2.279 2000 JAN 3 2.505 2000 JAN 4 2.008 2000 JAN 5 1.631 2000 JAN 6 1.445 2000 JAN 7 1.287 2000 JAN 8 0.967 2000 JAN 9 0.493 2000 JAN 10 0.508 2000 JAN 11 1.091 2000 JAN 12 1.180 2000 JAN 13 1.257 2000 JAN 14 1.678 2000 JAN 15 1.813 2000 JAN 16 1.636 2000 JAN 17 1.780 2000 JAN 18 1.664 2000 JAN 19 1.056 2000 JAN 20 0.928 2000 JAN 21 0.865 2000 JAN 22 0.958 2000 JAN 23 1.152 2000 JAN 24 1.191 2000 JAN 25 1.519 2000 JAN 26 1.654 2000 JAN 27 1.480 2000 JAN 28 1.034 2000 JAN 29 0.540 2000 JAN 30 -0.107 2000 JAN 31 -1.195 2000 FEB 1 -1.692 2000 FEB 2 -1.420 2000 FEB 3 -1.178 2000 FEB 4 -1.124 2000 FEB 5 -0.530 2000 FEB 6 0.497 2000 FEB 7 0.853 2000 FEB 8 0.818 2000 FEB 9 0.487 2000 FEB 10 0.052 2000 FEB 11 0.175 2000 FEB 12 0.933 2000 FEB 13 1.401 2000 FEB 14 1.490 2000 FEB 15 1.405 2000 FEB 16 1.230 2000 FEB 17 1.693 2000 FEB 18 2.332 2000 FEB 19 2.307 2000 FEB 20 1.656 2000 FEB 21 1.041 2000 FEB 22 0.082 2000 FEB 23 -0.036 2000 FEB 24 0.335 2000 FEB 25 0.655 2000 FEB 26 0.737 2000 FEB 27 0.617 2000 FEB 28 0.912 2000 FEB 29 1.527