# 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 1971    8   7   9  26  12     6  10K 13   1K 17    28  27   3  20  30 
 Feb 1971    5  13   4  22   3    11   6  28K  7  12    25  15  26  16  14*
 Mar 1971   29  28  22  21  23     7   6   2   1   5    13  14  31  15  12 
 Apr 1971   25  24  20  26   8     7K  2A 27A 19A 17A   15   9  14  10   4 
 May 1971   27  31  12  28  13    11  22  16K 21  20K   17   6  18   7  30*
 Jun 1971   19   9   7  12  20    27  10  21  24  15    25   2   3  29   1 
 Jul 1971   10   7  25  20  17    24K 11  16  28K  9K   21  26*  2*  1* 31*
 Aug 1971    6  27  14  20   3    19   7  15   1  28K   31   2* 11* 18* 23*
 Sep 1971    2  23  22  21   3    11  10  29  24K  9A   18  27  25  30   7 
 Oct 1971   19  18  26  17  27    20  16  21  31  23     9  29   8   2   1 
 Nov 1971   17  16  14  15   3     6  13   2   9   5    23  25  24  22  26*
 Dec 1971    7  14   6   8  10    15  28  20   5  27    17  18  22* 30* 29*