# 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 2011   30  23   5  27  21    22  26   1   2  29     7* 14* 13* 19*  8*
 Feb 2011    3   9  27  13  28    24  23  25  17  22     4  18   5*  6* 14*
 Mar 2011   15  26  16  27  18    28  31  14  29  25    11   1  10*  2*  3*
 Apr 2011   27  26  10  28  16    17  23  21  15  14    30   6  12   2  20*
 May 2011   20   8  12  25   9    13   6  19  14  23    28  29   2   1* 31*
 Jun 2011   29   3  28  19  27    18  30  16   6  25     5  23* 22* 24*  8*
 Jul 2011   27  28  16  24  17    29  15   2  26  18    20* 30* 19*  1* 11*
 Aug 2011   31  18  19   3  21     2  30  13  12  11     6   5  15* 14* 23*
 Sep 2011   23  19   1  16   8     2  24  22  14  25    10  27  26  17  12 
 Oct 2011   28  29  22  14  23    10  13  26  11  18    25   1* 24   5*  2*
 Nov 2011   19  14   9  20  13    18  10   5   3  16     1* 29* 30*  2* 24*
 Dec 2011   27  16  26  17   6    15   7  23  24  18     3* 29* 10* 11* 30*