# 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 2021    2   3  14   8  31    30   4  21  17   9    25* 11* 26*  6* 27*
 Feb 2021   11  10  27   9  14    18  15   1   5  28    20  21  24*  7* 22*
 Mar 2021   10  16   9  29  30    11  18  17   5   8K   20  14   1  21   3*
 Apr 2021    6  28   4   3   9     8  29  10   5  12    17  16* 19* 25* 18*
 May 2021    5  28  31  24   7    25  11   9   8   6    12  20  27* 26* 18*
 Jun 2021    1  28  27   9  19    26  21  14  23   4    15* 16* 30*  7* 12*
 Jul 2021   25   4  23  24  26    11  17   8  16   3    14* 28* 20* 15* 22*
 Aug 2021    5  23  22  14   1    21   9  12  19   8    27  28*  2*  7*  3*
 Sep 2021   26  19  20  16   2     9   1  29   4  15    17   8* 22* 23* 28*
 Oct 2021   28  27  29   7  23    22  24   8   9  25    12  11* 31*  1* 19*
 Nov 2021   13  26  14  12  11    24  27K 19  25  18     4   2*  6*  3* 16*
 Dec 2021    9  10  17  26  12    18   8  31  23   7     1* 20* 19* 27* 22*