# PURPOSE: This file distributes the Kp index and ap index (one line per three-hour interval) # LICENSE: CC BY 4.0 # SOURCE: Geomagnetic Observatory Niemegk, GFZ German Research Centre for Geosciences # PLEASE CITE: 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 # # Kp, ap and Ap # The three-hourly equivalent planetary amplitude ap is derived from Kp and the daily equivalent planetary amplitude Ap is the daily mean of ap. # Kp is unitless. Ap and ap are unitless and can be multiplied by 2 nT to yield the average geomagnetic disturbance at 50 degree geomagnetic latitude. # Kp, ap and Ap were introduced by Bartels (1949, 1957) and are produced by Geomagnetic Observatory Niemegk, GFZ German Research Centre for Geosciences. # Described in: Matzka et al. (2021), see reference above. # Data publication: 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 # # Short file description (for a detailed file description, see Kp_ap_Ap_SN_F107_format.txt): # 30 header lines, all starting with # # ASCII, blank separated and fixed length, missing data indicated by -1.000 for Kp and -1 for ap # YYYY MM DD is date of UT day, hh.h is starting time in hours of interval for which Kp and ap are given # hh._m is mid time in hours of interval for which Kp and ap are given # days is days since 1932-01-01 00:00 UT to start of interval, days_m is days since 1932-01-01 00:00 UT to mid of interval # Kp, ap # D indicates if the Kp and ap values are definitive (D = 1) or preliminary (D=0) # # # # # The format for each line is (i stands for integer, f for float): #iii ii ii ff.f ff.ff fffff.fffff fffff.fffff ff.fff iiii i # The parameters in each line are: #YYY MM DD hh.h hh._m days days_m Kp ap D 2024 06 08 00.0 01.50 33762.00000 33762.06250 4.667 39 1 2024 06 08 03.0 04.50 33762.12500 33762.18750 3.000 15 1 2024 06 08 06.0 07.50 33762.25000 33762.31250 2.667 12 1 2024 06 08 09.0 10.50 33762.37500 33762.43750 2.667 12 1 2024 06 08 12.0 13.50 33762.50000 33762.56250 2.000 7 1 2024 06 08 15.0 16.50 33762.62500 33762.68750 2.667 12 1 2024 06 08 18.0 19.50 33762.75000 33762.81250 2.000 7 1 2024 06 08 21.0 22.50 33762.87500 33762.93750 1.667 6 1 2024 06 09 00.0 01.50 33763.00000 33763.06250 1.333 5 1 2024 06 09 03.0 04.50 33763.12500 33763.18750 0.667 3 1 2024 06 09 06.0 07.50 33763.25000 33763.31250 1.000 4 1 2024 06 09 09.0 10.50 33763.37500 33763.43750 0.667 3 1 2024 06 09 12.0 13.50 33763.50000 33763.56250 2.000 7 1 2024 06 09 15.0 16.50 33763.62500 33763.68750 1.000 4 1 2024 06 09 18.0 19.50 33763.75000 33763.81250 1.667 6 1 2024 06 09 21.0 22.50 33763.87500 33763.93750 1.333 5 1 2024 06 10 00.0 01.50 33764.00000 33764.06250 1.333 5 1 2024 06 10 03.0 04.50 33764.12500 33764.18750 0.333 2 1 2024 06 10 06.0 07.50 33764.25000 33764.31250 0.667 3 1 2024 06 10 09.0 10.50 33764.37500 33764.43750 1.000 4 1 2024 06 10 12.0 13.50 33764.50000 33764.56250 0.667 3 1 2024 06 10 15.0 16.50 33764.62500 33764.68750 3.667 22 1 2024 06 10 18.0 19.50 33764.75000 33764.81250 4.000 27 1 2024 06 10 21.0 22.50 33764.87500 33764.93750 2.000 7 1 2024 06 11 00.0 01.50 33765.00000 33765.06250 3.667 22 1 2024 06 11 03.0 04.50 33765.12500 33765.18750 4.333 32 1 2024 06 11 06.0 07.50 33765.25000 33765.31250 2.333 9 1 2024 06 11 09.0 10.50 33765.37500 33765.43750 1.333 5 1 2024 06 11 12.0 13.50 33765.50000 33765.56250 1.000 4 1 2024 06 11 15.0 16.50 33765.62500 33765.68750 1.000 4 1 2024 06 11 18.0 19.50 33765.75000 33765.81250 0.667 3 1 2024 06 11 21.0 22.50 33765.87500 33765.93750 1.333 5 1 2024 06 12 00.0 01.50 33766.00000 33766.06250 0.667 3 1 2024 06 12 03.0 04.50 33766.12500 33766.18750 0.667 3 1 2024 06 12 06.0 07.50 33766.25000 33766.31250 0.667 3 1 2024 06 12 09.0 10.50 33766.37500 33766.43750 0.667 3 1 2024 06 12 12.0 13.50 33766.50000 33766.56250 1.000 4 1 2024 06 12 15.0 16.50 33766.62500 33766.68750 1.333 5 1 2024 06 12 18.0 19.50 33766.75000 33766.81250 1.000 4 1 2024 06 12 21.0 22.50 33766.87500 33766.93750 1.333 5 1 2024 06 13 00.0 01.50 33767.00000 33767.06250 0.333 2 1 2024 06 13 03.0 04.50 33767.12500 33767.18750 0.333 2 1 2024 06 13 06.0 07.50 33767.25000 33767.31250 0.333 2 1 2024 06 13 09.0 10.50 33767.37500 33767.43750 0.333 2 1 2024 06 13 12.0 13.50 33767.50000 33767.56250 1.000 4 1 2024 06 13 15.0 16.50 33767.62500 33767.68750 1.000 4 1 2024 06 13 18.0 19.50 33767.75000 33767.81250 1.000 4 1 2024 06 13 21.0 22.50 33767.87500 33767.93750 0.000 0 1 2024 06 14 00.0 01.50 33768.00000 33768.06250 0.333 2 1 2024 06 14 03.0 04.50 33768.12500 33768.18750 0.667 3 1 2024 06 14 06.0 07.50 33768.25000 33768.31250 2.000 7 1 2024 06 14 09.0 10.50 33768.37500 33768.43750 1.667 6 1 2024 06 14 12.0 13.50 33768.50000 33768.56250 1.000 4 1 2024 06 14 15.0 16.50 33768.62500 33768.68750 0.667 3 1 2024 06 14 18.0 19.50 33768.75000 33768.81250 1.667 6 1 2024 06 14 21.0 22.50 33768.87500 33768.93750 2.333 9 1 2024 06 15 00.0 01.50 33769.00000 33769.06250 2.333 9 1 2024 06 15 03.0 04.50 33769.12500 33769.18750 2.333 9 1 2024 06 15 06.0 07.50 33769.25000 33769.31250 2.000 7 1 2024 06 15 09.0 10.50 33769.37500 33769.43750 3.000 15 1 2024 06 15 12.0 13.50 33769.50000 33769.56250 4.667 39 1 2024 06 15 15.0 16.50 33769.62500 33769.68750 3.333 18 1 2024 06 15 18.0 19.50 33769.75000 33769.81250 2.667 12 1 2024 06 15 21.0 22.50 33769.87500 33769.93750 4.000 27 1 2024 06 16 00.0 01.50 33770.00000 33770.06250 2.667 12 1 2024 06 16 03.0 04.50 33770.12500 33770.18750 0.667 3 1 2024 06 16 06.0 07.50 33770.25000 33770.31250 2.000 7 1 2024 06 16 09.0 10.50 33770.37500 33770.43750 3.333 18 1 2024 06 16 12.0 13.50 33770.50000 33770.56250 3.667 22 1 2024 06 16 15.0 16.50 33770.62500 33770.68750 3.000 15 1 2024 06 16 18.0 19.50 33770.75000 33770.81250 4.000 27 1 2024 06 16 21.0 22.50 33770.87500 33770.93750 1.667 6 1 2024 06 17 00.0 01.50 33771.00000 33771.06250 2.000 7 1 2024 06 17 03.0 04.50 33771.12500 33771.18750 2.333 9 1 2024 06 17 06.0 07.50 33771.25000 33771.31250 1.667 6 1 2024 06 17 09.0 10.50 33771.37500 33771.43750 1.667 6 1 2024 06 17 12.0 13.50 33771.50000 33771.56250 2.333 9 1 2024 06 17 15.0 16.50 33771.62500 33771.68750 3.333 18 1 2024 06 17 18.0 19.50 33771.75000 33771.81250 3.333 18 1 2024 06 17 21.0 22.50 33771.87500 33771.93750 3.000 15 1 2024 06 18 00.0 01.50 33772.00000 33772.06250 1.667 6 1 2024 06 18 03.0 04.50 33772.12500 33772.18750 2.667 12 1 2024 06 18 06.0 07.50 33772.25000 33772.31250 2.667 12 1 2024 06 18 09.0 10.50 33772.37500 33772.43750 2.667 12 1 2024 06 18 12.0 13.50 33772.50000 33772.56250 2.667 12 1 2024 06 18 15.0 16.50 33772.62500 33772.68750 3.333 18 1 2024 06 18 18.0 19.50 33772.75000 33772.81250 1.667 6 1 2024 06 18 21.0 22.50 33772.87500 33772.93750 1.333 5 1 2024 06 19 00.0 01.50 33773.00000 33773.06250 2.667 12 1 2024 06 19 03.0 04.50 33773.12500 33773.18750 3.000 15 1 2024 06 19 06.0 07.50 33773.25000 33773.31250 2.000 7 1 2024 06 19 09.0 10.50 33773.37500 33773.43750 1.333 5 1 2024 06 19 12.0 13.50 33773.50000 33773.56250 3.333 18 1 2024 06 19 15.0 16.50 33773.62500 33773.68750 2.667 12 1 2024 06 19 18.0 19.50 33773.75000 33773.81250 2.000 7 1 2024 06 19 21.0 22.50 33773.87500 33773.93750 1.000 4 1 2024 06 20 00.0 01.50 33774.00000 33774.06250 2.000 7 1 2024 06 20 03.0 04.50 33774.12500 33774.18750 1.333 5 1 2024 06 20 06.0 07.50 33774.25000 33774.31250 1.333 5 1 2024 06 20 09.0 10.50 33774.37500 33774.43750 1.000 4 1 2024 06 20 12.0 13.50 33774.50000 33774.56250 1.667 6 1 2024 06 20 15.0 16.50 33774.62500 33774.68750 1.333 5 1 2024 06 20 18.0 19.50 33774.75000 33774.81250 2.333 9 1 2024 06 20 21.0 22.50 33774.87500 33774.93750 2.333 9 1 2024 06 21 00.0 01.50 33775.00000 33775.06250 1.333 5 1 2024 06 21 03.0 04.50 33775.12500 33775.18750 1.333 5 1 2024 06 21 06.0 07.50 33775.25000 33775.31250 0.667 3 1 2024 06 21 09.0 10.50 33775.37500 33775.43750 0.333 2 1 2024 06 21 12.0 13.50 33775.50000 33775.56250 0.333 2 1 2024 06 21 15.0 16.50 33775.62500 33775.68750 0.333 2 1 2024 06 21 18.0 19.50 33775.75000 33775.81250 1.000 4 1 2024 06 21 21.0 22.50 33775.87500 33775.93750 0.667 3 1 2024 06 22 00.0 01.50 33776.00000 33776.06250 1.333 5 1 2024 06 22 03.0 04.50 33776.12500 33776.18750 0.333 2 1 2024 06 22 06.0 07.50 33776.25000 33776.31250 0.333 2 1 2024 06 22 09.0 10.50 33776.37500 33776.43750 0.333 2 1 2024 06 22 12.0 13.50 33776.50000 33776.56250 0.667 3 1 2024 06 22 15.0 16.50 33776.62500 33776.68750 1.000 4 1 2024 06 22 18.0 19.50 33776.75000 33776.81250 0.667 3 1 2024 06 22 21.0 22.50 33776.87500 33776.93750 0.667 3 1 2024 06 23 00.0 01.50 33777.00000 33777.06250 1.000 4 1 2024 06 23 03.0 04.50 33777.12500 33777.18750 1.667 6 1 2024 06 23 06.0 07.50 33777.25000 33777.31250 2.667 12 1 2024 06 23 09.0 10.50 33777.37500 33777.43750 3.000 15 1 2024 06 23 12.0 13.50 33777.50000 33777.56250 3.333 18 1 2024 06 23 15.0 16.50 33777.62500 33777.68750 2.667 12 1 2024 06 23 18.0 19.50 33777.75000 33777.81250 2.333 9 1 2024 06 23 21.0 22.50 33777.87500 33777.93750 1.667 6 1 2024 06 24 00.0 01.50 33778.00000 33778.06250 1.667 6 1 2024 06 24 03.0 04.50 33778.12500 33778.18750 0.333 2 1 2024 06 24 06.0 07.50 33778.25000 33778.31250 0.333 2 1 2024 06 24 09.0 10.50 33778.37500 33778.43750 0.333 2 1 2024 06 24 12.0 13.50 33778.50000 33778.56250 0.667 3 1 2024 06 24 15.0 16.50 33778.62500 33778.68750 0.667 3 1 2024 06 24 18.0 19.50 33778.75000 33778.81250 1.000 4 1 2024 06 24 21.0 22.50 33778.87500 33778.93750 1.333 5 1 2024 06 25 00.0 01.50 33779.00000 33779.06250 1.333 5 1 2024 06 25 03.0 04.50 33779.12500 33779.18750 1.333 5 1 2024 06 25 06.0 07.50 33779.25000 33779.31250 2.000 7 1 2024 06 25 09.0 10.50 33779.37500 33779.43750 2.000 7 1 2024 06 25 12.0 13.50 33779.50000 33779.56250 1.667 6 1 2024 06 25 15.0 16.50 33779.62500 33779.68750 2.667 12 1 2024 06 25 18.0 19.50 33779.75000 33779.81250 1.667 6 1 2024 06 25 21.0 22.50 33779.87500 33779.93750 1.000 4 1 2024 06 26 00.0 01.50 33780.00000 33780.06250 1.000 4 1 2024 06 26 03.0 04.50 33780.12500 33780.18750 1.333 5 1 2024 06 26 06.0 07.50 33780.25000 33780.31250 2.333 9 1 2024 06 26 09.0 10.50 33780.37500 33780.43750 2.667 12 1 2024 06 26 12.0 13.50 33780.50000 33780.56250 2.667 12 1 2024 06 26 15.0 16.50 33780.62500 33780.68750 2.667 12 1 2024 06 26 18.0 19.50 33780.75000 33780.81250 2.333 9 1 2024 06 26 21.0 22.50 33780.87500 33780.93750 1.333 5 1 2024 06 27 00.0 01.50 33781.00000 33781.06250 1.667 6 1 2024 06 27 03.0 04.50 33781.12500 33781.18750 1.333 5 1 2024 06 27 06.0 07.50 33781.25000 33781.31250 0.667 3 1 2024 06 27 09.0 10.50 33781.37500 33781.43750 1.000 4 1 2024 06 27 12.0 13.50 33781.50000 33781.56250 2.000 7 1 2024 06 27 15.0 16.50 33781.62500 33781.68750 2.333 9 1 2024 06 27 18.0 19.50 33781.75000 33781.81250 2.333 9 1 2024 06 27 21.0 22.50 33781.87500 33781.93750 3.333 18 1 2024 06 28 00.0 01.50 33782.00000 33782.06250 3.667 22 1 2024 06 28 03.0 04.50 33782.12500 33782.18750 4.000 27 1 2024 06 28 06.0 07.50 33782.25000 33782.31250 4.000 27 1 2024 06 28 09.0 10.50 33782.37500 33782.43750 6.000 80 1 2024 06 28 12.0 13.50 33782.50000 33782.56250 7.667 179 1 2024 06 28 15.0 16.50 33782.62500 33782.68750 5.667 67 1 2024 06 28 18.0 19.50 33782.75000 33782.81250 5.333 56 1 2024 06 28 21.0 22.50 33782.87500 33782.93750 3.667 22 1 2024 06 29 00.0 01.50 33783.00000 33783.06250 4.000 27 1 2024 06 29 03.0 04.50 33783.12500 33783.18750 2.333 9 1 2024 06 29 06.0 07.50 33783.25000 33783.31250 2.000 7 1 2024 06 29 09.0 10.50 33783.37500 33783.43750 2.333 9 1 2024 06 29 12.0 13.50 33783.50000 33783.56250 2.000 7 1 2024 06 29 15.0 16.50 33783.62500 33783.68750 3.000 15 1 2024 06 29 18.0 19.50 33783.75000 33783.81250 3.000 15 1 2024 06 29 21.0 22.50 33783.87500 33783.93750 2.667 12 1 2024 06 30 00.0 01.50 33784.00000 33784.06250 2.333 9 1 2024 06 30 03.0 04.50 33784.12500 33784.18750 2.333 9 1 2024 06 30 06.0 07.50 33784.25000 33784.31250 1.333 5 1 2024 06 30 09.0 10.50 33784.37500 33784.43750 2.667 12 1 2024 06 30 12.0 13.50 33784.50000 33784.56250 3.333 18 1 2024 06 30 15.0 16.50 33784.62500 33784.68750 3.667 22 1 2024 06 30 18.0 19.50 33784.75000 33784.81250 2.333 9 1 2024 06 30 21.0 22.50 33784.87500 33784.93750 1.667 6 1 2024 07 01 00.0 01.50 33785.00000 33785.06250 1.667 6 0 2024 07 01 03.0 04.50 33785.12500 33785.18750 1.333 5 0 2024 07 01 06.0 07.50 33785.25000 33785.31250 1.667 6 0 2024 07 01 09.0 10.50 33785.37500 33785.43750 1.333 5 0 2024 07 01 12.0 13.50 33785.50000 33785.56250 1.667 6 0 2024 07 01 15.0 16.50 33785.62500 33785.68750 1.333 5 0 2024 07 01 18.0 19.50 33785.75000 33785.81250 0.667 3 0 2024 07 01 21.0 22.50 33785.87500 33785.93750 0.667 3 0 2024 07 02 00.0 01.50 33786.00000 33786.06250 0.667 3 0 2024 07 02 03.0 04.50 33786.12500 33786.18750 1.333 5 0 2024 07 02 06.0 07.50 33786.25000 33786.31250 0.667 3 0 2024 07 02 09.0 10.50 33786.37500 33786.43750 0.333 2 0 2024 07 02 12.0 13.50 33786.50000 33786.56250 1.667 6 0 2024 07 02 15.0 16.50 33786.62500 33786.68750 0.667 3 0 2024 07 02 18.0 19.50 33786.75000 33786.81250 1.000 4 0 2024 07 02 21.0 22.50 33786.87500 33786.93750 1.333 5 0 2024 07 03 00.0 01.50 33787.00000 33787.06250 1.000 4 0 2024 07 03 03.0 04.50 33787.12500 33787.18750 1.333 5 0 2024 07 03 06.0 07.50 33787.25000 33787.31250 1.333 5 0 2024 07 03 09.0 10.50 33787.37500 33787.43750 0.667 3 0 2024 07 03 12.0 13.50 33787.50000 33787.56250 1.000 4 0 2024 07 03 15.0 16.50 33787.62500 33787.68750 0.667 3 0 2024 07 03 18.0 19.50 33787.75000 33787.81250 1.000 4 0 2024 07 03 21.0 22.50 33787.87500 33787.93750 1.333 5 0 2024 07 04 00.0 01.50 33788.00000 33788.06250 1.667 6 0 2024 07 04 03.0 04.50 33788.12500 33788.18750 2.000 7 0 2024 07 04 06.0 07.50 33788.25000 33788.31250 1.333 5 0 2024 07 04 09.0 10.50 33788.37500 33788.43750 1.333 5 0 2024 07 04 12.0 13.50 33788.50000 33788.56250 2.333 9 0 2024 07 04 15.0 16.50 33788.62500 33788.68750 2.667 12 0 2024 07 04 18.0 19.50 33788.75000 33788.81250 3.000 15 0 2024 07 04 21.0 22.50 33788.87500 33788.93750 2.667 12 0 2024 07 05 00.0 01.50 33789.00000 33789.06250 2.000 7 0 2024 07 05 03.0 04.50 33789.12500 33789.18750 2.667 12 0 2024 07 05 06.0 07.50 33789.25000 33789.31250 1.333 5 0 2024 07 05 09.0 10.50 33789.37500 33789.43750 2.000 7 0 2024 07 05 12.0 13.50 33789.50000 33789.56250 3.000 15 0 2024 07 05 15.0 16.50 33789.62500 33789.68750 2.000 7 0 2024 07 05 18.0 19.50 33789.75000 33789.81250 0.667 3 0 2024 07 05 21.0 22.50 33789.87500 33789.93750 0.667 3 0 2024 07 06 00.0 01.50 33790.00000 33790.06250 1.333 5 0 2024 07 06 03.0 04.50 33790.12500 33790.18750 0.667 3 0 2024 07 06 06.0 07.50 33790.25000 33790.31250 0.667 3 0 2024 07 06 09.0 10.50 33790.37500 33790.43750 0.333 2 0 2024 07 06 12.0 13.50 33790.50000 33790.56250 0.333 2 0 2024 07 06 15.0 16.50 33790.62500 33790.68750 0.667 3 0 2024 07 06 18.0 19.50 33790.75000 33790.81250 0.000 0 0 2024 07 06 21.0 22.50 33790.87500 33790.93750 0.667 3 0 2024 07 07 00.0 01.50 33791.00000 33791.06250 -1.000 -1 0 2024 07 07 03.0 04.50 33791.12500 33791.18750 -1.000 -1 0 2024 07 07 06.0 07.50 33791.25000 33791.31250 -1.000 -1 0 2024 07 07 09.0 10.50 33791.37500 33791.43750 -1.000 -1 0 2024 07 07 12.0 13.50 33791.50000 33791.56250 -1.000 -1 0 2024 07 07 15.0 16.50 33791.62500 33791.68750 -1.000 -1 0 2024 07 07 18.0 19.50 33791.75000 33791.81250 -1.000 -1 0 2024 07 07 21.0 22.50 33791.87500 33791.93750 -1.000 -1 0