# 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 1965   24   6  25  11  16    26   1  31   5   4    22   8* 13* 12*  2*
 Feb 1965    2  17  19  12  13    18K  1   5  22   3K    7  21* 23*  6*  8*
 Mar 1965   18   8  10  30  11     9  19  31  16   6     3  23  25   4  26*
 Apr 1965    2   3  28  21   8    16   5  25  15   1    18  19*  9* 17* 20*
 May 1965    2  11  19  14  13    25  30   3  29   1     5  16*  9*  8* 10*
 Jun 1965   21  13  20  10  24    19  23  12  28   7    16  17  15* 30*  9*
 Jul 1965   11  17  31   5   4    26  16  21  14  30     8   6* 28* 10* 23*
 Aug 1965   13   6  28   5  10     1  22  29K 15K 27    19  18  20* 24* 25*
 Sep 1965    9  10  14   8  30    11   3K 22  20  21    16  28  17* 27  19*
 Oct 1965    4   6  15  21  16     1  17  20   3  10    23*  2*  8* 24* 28*
 Nov 1965   10  16   3  23  28    14  15  29  11  26     6* 20*  5* 30* 19*
 Dec 1965   16  15  17  14   6    21   5   3  31  23    26*  1* 28* 25* 18*