# PURPOSE: This file distributes the geomagnetic planetary three-hour index Kp and associated geomagnetic indices as well as relevant solar indices. # LICENSE: CC BY 4.0, except for the sunspot numbers contained in this file, which have the CC BY-NC 4.0 license # 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 # Note: the most recent values are nowcast values and will be replaced by definitive values as soon as they become available. # # International Sunspot Number SN # The international sunspot number SN (written with subscript N) is given as the daily total sunspot number version 2.0 introduced in 2015. # The sunspot data is available under the licence CC BY-NC 4.0 from WDC-SILSO, Royal Observatory of Belgium, Brussels. Described in: # Clette, F., Lefevre, L., 2016. The New Sunspot Number: assembling all corrections. Solar Physics, 291, https://doi.org/10.1007/s11207-016-1014-y # Note: the most recent values are preliminary and replaced by definitive values as soon as they become available. # # F10.7 Solar Radio Flux # Local noon-time observed (F10.7obs) and adjusted (F10.7adj) solar radio flux F10.7 in s.f.u. (10^-22 W m^-2 Hz^-1) is provided by # Dominion Radio Astrophysical Observatory and Natural Resources Canada. # Described in: Tapping, K.F., 2013. The 10.7 cm solar radio flux (F10.7). Space Weather, 11, 394-406, https://doi.org/10.1002/swe.20064 # Note: For ionospheric and atmospheric studies the use of F10.7obs is recommended. # # Short file description (for a detailed file description, see Kp_ap_Ap_SN_F107_format.txt): # 40 header lines, all starting with # # ASCII, blank separated and fixed length, missing data indicated by -1.000 for Kp, -1 for ap and SN, -1.0 for F10.7 # YYYY MM DD is date of UT day, days is days since 1932-01-01 00:00 UT to start of UT day, days_m is days since 1932-01-01 00:00 UT to midday of UT day # BSR is Bartels solar rotation number, dB is day within BSR # Kp1 to Kp8 (Kp for the eight eighth of the UT day), ap1 to ap8 (ap for the eight eighth of the UT day), Ap, SN, F10.7obs, F10.7adj # D indicates if the Kp and SN values are definitive or preliminary. D=0: Kp and SN preliminary; D=1: Kp definitive, SN preliminary; D=2 Kp and SN definitive # # # The format for each line is (i stands for integer, f for float): #iii ii ii iiiii fffff.f iiii ii ff.fff ff.fff ff.fff ff.fff ff.fff ff.fff ff.fff ff.fff iiii iiii iiii iiii iiii iiii iiii iiii iiii iii ffffff.f ffffff.f i # The parameters in each line are: #YYY MM DD days days_m Bsr dB Kp1 Kp2 Kp3 Kp4 Kp5 Kp6 Kp7 Kp8 ap1 ap2 ap3 ap4 ap5 ap6 ap7 ap8 Ap SN F10.7obs F10.7adj D 2024 08 17 33832 33832.5 2605 11 1.000 0.333 1.333 1.333 3.667 6.333 5.000 5.333 4 2 5 5 22 94 48 56 30 197 229.5 235.2 1 2024 08 18 33833 33833.5 2605 12 2.333 2.667 2.000 3.333 3.667 2.333 2.000 2.000 9 12 7 18 22 9 7 7 11 202 231.0 236.6 1 2024 08 19 33834 33834.5 2605 13 0.667 1.333 0.667 1.333 3.000 3.000 3.000 2.667 3 5 3 5 15 15 15 12 9 224 239.1 244.8 1 2024 08 20 33835 33835.5 2605 14 3.333 1.667 1.667 1.667 2.333 2.333 1.667 1.667 18 6 6 6 9 9 6 6 8 215 238.2 243.8 1 2024 08 21 33836 33836.5 2605 15 3.333 1.333 1.333 1.667 2.000 2.667 1.667 1.333 18 5 5 6 7 12 6 5 8 209 239.0 244.5 1 2024 08 22 33837 33837.5 2605 16 3.000 2.667 2.000 2.000 2.000 2.000 1.667 2.333 15 12 7 7 7 7 6 9 9 214 230.6 235.8 1 2024 08 23 33838 33838.5 2605 17 1.333 1.333 2.333 1.333 2.000 0.667 1.667 1.333 5 5 9 5 7 3 6 5 6 213 241.7 247.1 1 2024 08 24 33839 33839.5 2605 18 1.667 1.667 2.667 2.667 1.667 3.000 1.333 1.667 6 6 12 12 6 15 5 6 8 225 232.3 237.3 1 2024 08 25 33840 33840.5 2605 19 2.000 2.333 2.000 1.333 0.667 0.333 0.667 1.000 7 9 7 5 3 2 3 4 5 205 232.6 237.6 1 2024 08 26 33841 33841.5 2605 20 1.667 1.000 0.333 1.000 1.000 1.333 0.333 0.333 6 4 2 4 4 5 2 2 4 219 -1.0 -1.0 1 2024 08 27 33842 33842.5 2605 21 0.000 0.667 2.667 1.667 2.667 3.000 2.333 3.333 0 3 12 6 12 15 9 18 9 182 221.3 225.8 1 2024 08 28 33843 33843.5 2605 22 5.667 4.000 5.000 2.333 2.667 2.333 1.333 2.667 67 27 48 9 12 9 5 12 24 186 211.9 216.1 1 2024 08 29 33844 33844.5 2605 23 2.000 1.000 0.667 1.000 1.667 1.000 1.000 1.000 7 4 3 4 6 4 4 4 4 151 204.0 207.9 1 2024 08 30 33845 33845.5 2605 24 1.333 0.667 3.667 3.000 4.667 4.667 4.667 4.333 5 3 22 15 39 39 39 32 24 151 214.2 218.3 1 2024 08 31 33846 33846.5 2605 25 4.000 4.333 4.333 1.667 3.667 4.667 4.000 3.000 27 32 32 6 22 39 27 15 25 176 231.6 235.9 1 2024 09 01 33847 33847.5 2605 26 3.667 3.333 2.000 2.000 3.333 3.667 2.333 2.333 22 18 7 7 18 22 9 9 14 182 225.5 229.5 0 2024 09 02 33848 33848.5 2605 27 2.000 1.667 1.333 1.333 2.000 2.667 2.000 1.333 7 6 5 5 7 12 7 5 7 195 237.6 241.8 0 2024 09 03 33849 33849.5 2606 1 1.000 1.333 2.000 2.000 0.667 1.000 1.000 1.000 4 5 7 7 3 4 4 4 5 179 242.1 246.3 0 2024 09 04 33850 33850.5 2606 2 0.667 0.333 1.667 4.333 4.667 2.333 1.333 2.000 3 2 6 32 39 9 5 7 13 174 261.8 266.2 0 2024 09 05 33851 33851.5 2606 3 1.000 1.667 0.667 1.000 0.667 0.667 0.667 1.667 4 6 3 4 3 3 3 6 4 181 240.7 244.6 0 2024 09 06 33852 33852.5 2606 4 0.333 0.000 1.000 2.667 3.000 0.333 1.000 2.000 2 0 4 12 15 2 4 7 6 189 248.9 252.8 0 2024 09 07 33853 33853.5 2606 5 2.000 1.667 1.000 1.667 2.333 1.333 1.333 0.667 7 6 4 6 9 5 5 3 6 168 221.7 225.0 0 2024 09 08 33854 33854.5 2606 6 2.000 2.000 1.667 1.333 2.333 2.000 1.667 2.333 7 7 6 5 9 7 6 9 7 171 227.6 231.0 0 2024 09 09 33855 33855.5 2606 7 2.000 1.333 2.333 1.333 1.000 2.000 2.333 2.333 7 5 9 5 4 7 9 9 7 156 214.8 217.8 0 2024 09 10 33856 33856.5 2606 8 2.667 1.667 1.667 1.667 1.000 0.667 2.333 1.333 12 6 6 6 4 3 9 5 6 148 205.2 207.9 0 2024 09 11 33857 33857.5 2606 9 0.667 1.000 1.000 1.000 3.333 3.000 2.000 2.667 3 4 4 4 18 15 7 12 8 153 207.0 209.6 0 2024 09 12 33858 33858.5 2606 10 2.333 4.333 5.333 6.667 6.667 6.000 7.000 5.000 9 32 56 111 111 80 132 48 72 145 201.2 203.7 0 2024 09 13 33859 33859.5 2606 11 5.333 4.333 4.000 3.333 3.333 3.667 4.000 6.000 56 32 27 18 18 22 27 80 35 120 185.8 188.1 0 2024 09 14 33860 33860.5 2606 12 3.667 3.667 2.667 4.000 4.333 2.000 2.667 3.333 22 22 12 27 32 7 12 18 19 117 172.4 174.4 0 2024 09 15 33861 33861.5 2606 13 1.000 -1.000 -1.000 -1.000 -1.000 -1.000 -1.000 -1.000 4 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1.0 -1.0 0