# DOI: https://doi.org/10.5880/Kp.0001
# LICENCE: CC BY 4.0, please cite:
# Matzka, J., Bronkalla, O., Tornow, K., Elger, K. and Stolle, C., 2021.
# Geomagnetic Kp index. V. 1.0. GFZ Data Services,
# https://doi.org/10.5880/Kp.0001
# Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A.,
# 2021. The geomagnetic Kp index and derived indices of geomagnetic activity.
# Space Weather, https://doi.org/10.1029/2020SW002641
# The Kp index was introduced by Bartels (1949) and is produced by Geomagnetic
# Observatory Niemegk, GFZ German Research Centre for Geosciences.
  International           Quietest Days                 Most Disturbed Days
  Month
            Q1  Q2  Q3  Q4  Q5    Q6  Q7  Q8  Q9  Q10   D1  D2  D3  D4  D5

 Jan 1969    6   3  13  29  10     5   4  22   2   9    25  17  26  18  15*
 Feb 1969   18   1   9  17  22    24  25A 19A 21A 20A   11   3   2  27  15*
 Mar 1969    3  10  27  28   4K   14A 13A  2A  9A  1A   24  17  12  23  25 
 Apr 1969   23  19K 26  21K 10    11A  8A 20A 25A 24A   28  30   1  17  13 
 May 1969   27  26  11  29   8     7  25A 12A  6A 20A   15  14  13  16   2 
 Jun 1969   22  28  29   6  18    30   3   1  23   5    14  16* 12* 17* 13*
 Jul 1969   29   5   4  19   3    20  24  18  25  17    27  26   1* 14* 13*
 Aug 1969    1  29  11  25  30    16  31  15   2   6    27  12   3* 19* 26*
 Sep 1969    2  13  22   1  26     4   3  21  12  24    30  29  28   6  18*
 Oct 1969   30  14   8  15  26    29  23  20  16  13K    2  10   1   3*  6*
 Nov 1969   15  21   1  14   6    16  17  18  20  23     9  10  27  30*  3*
 Dec 1969   20  30  31  21  13    18  14   2  19  28     6*  5* 16*  9* 23*