# 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 1970   26  25   4  11  13    22   6   7  19K 23     2  16* 30* 17*  9*
 Feb 1970    7  22  21   8  11     9  12  20   6  25     2  28*  4* 24* 14*
 Mar 1970   24  22  21  25  16    11  14  23  20  26     8  31   9   7   6 
 Apr 1970   14  13  10  28  15     1K  2  12  29A 11A   21  22  17   6  20 
 May 1970   10  26   9  11   8    18  31  16   6   7    28  12* 27* 20* 29*
 Jun 1970    6  23  22  12  11    30   9  10  25  24    27  18   1  21* 20*
 Jul 1970   28   7  18  19  15    20K 16  30A 17A 23A   25   9  29  10  21 
 Aug 1970    5   4  24   3   1    20  14  21  30   2    17  18   8   9* 26*
 Sep 1970   11  29  12   9   6     7  23  10K 26  28A   13  21   1  14* 27*
 Oct 1970   21   9   8   7  15    31  26  27   6  20A   18  17  16   4  23 
 Nov 1970   30  29   1  20  15     2  16   4A 17K 14A    7  21  23  11  22*
 Dec 1970    1  11  31  10  17    12  16  18  21  26    14   8* 28* 15* 24*