# 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 Helmholtz 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 Helmholtz 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 2025 11 09 34281 34281.5 2622 1 1.667 1.333 2.333 1.000 2.000 1.000 1.000 3.000 6 5 9 4 7 4 4 15 7 154 175.6 172.3 1 2025 11 10 34282 34282.5 2622 2 2.667 2.000 1.000 2.333 2.667 4.333 3.000 3.333 12 7 4 9 12 32 15 18 14 152 180.3 176.8 1 2025 11 11 34283 34283.5 2622 3 1.333 2.667 1.000 2.333 0.667 1.000 0.333 2.333 5 12 4 9 3 4 2 9 6 151 168.0 164.7 1 2025 11 12 34284 34284.5 2622 4 8.667 8.667 7.000 7.667 5.333 4.333 5.667 4.000 300 300 132 179 56 32 67 27 137 137 163.3 160.0 1 2025 11 13 34285 34285.5 2622 5 6.667 7.333 6.333 3.667 4.667 3.667 2.667 0.667 111 154 94 22 39 22 12 3 57 127 155.9 152.7 1 2025 11 14 34286 34286.5 2622 6 0.667 0.667 0.667 1.333 1.000 1.000 0.333 0.000 3 3 3 5 4 4 2 0 3 103 145.3 142.2 1 2025 11 15 34287 34287.5 2622 7 1.333 1.000 2.000 1.667 1.667 1.667 3.333 3.000 5 4 7 6 6 6 18 15 8 100 132.3 129.4 1 2025 11 16 34288 34288.5 2622 8 3.333 3.667 2.667 2.667 3.667 3.000 3.000 3.333 18 22 12 12 22 15 15 18 17 71 132.3 129.3 1 2025 11 17 34289 34289.5 2622 9 3.667 2.667 3.000 1.000 2.000 0.667 2.000 2.000 22 12 15 4 7 3 7 7 10 57 122.3 119.5 1 2025 11 18 34290 34290.5 2622 10 2.333 2.000 2.000 0.333 0.000 0.000 0.000 0.667 9 7 7 2 0 0 0 3 4 62 120.1 117.4 1 2025 11 19 34291 34291.5 2622 11 0.333 0.000 0.667 0.333 0.333 0.333 1.000 0.333 2 0 3 2 2 2 4 2 2 54 122.5 119.6 1 2025 11 20 34292 34292.5 2622 12 0.333 1.667 1.000 1.000 0.333 2.000 2.667 3.000 2 6 4 4 2 7 12 15 6 59 121.4 118.5 1 2025 11 21 34293 34293.5 2622 13 2.667 2.667 0.667 1.333 1.667 2.000 2.000 1.333 12 12 3 5 6 7 7 5 7 65 121.2 118.3 1 2025 11 22 34294 34294.5 2622 14 2.000 1.000 0.667 0.333 1.000 0.667 1.667 2.333 7 4 3 2 4 3 6 9 5 61 119.3 116.4 1 2025 11 23 34295 34295.5 2622 15 2.667 1.667 1.667 2.333 3.000 3.667 2.667 2.333 12 6 6 9 15 22 12 9 11 80 119.6 116.7 1 2025 11 24 34296 34296.5 2622 16 3.000 3.000 3.333 3.333 4.667 3.667 3.333 3.333 15 15 18 18 39 22 18 18 20 102 116.2 113.2 1 2025 11 25 34297 34297.5 2622 17 4.667 4.667 4.333 4.000 4.000 4.000 4.000 2.667 39 39 32 27 27 27 27 12 29 99 116.9 113.9 1 2025 11 26 34298 34298.5 2622 18 2.667 4.000 4.333 3.333 4.000 4.333 3.333 3.000 12 27 32 18 27 32 18 15 23 82 120.8 117.7 1 2025 11 27 34299 34299.5 2622 19 2.667 3.333 4.000 4.333 4.000 3.667 4.333 4.333 12 18 27 32 27 22 32 32 25 90 120.9 117.7 1 2025 11 28 34300 34300.5 2622 20 3.333 3.000 3.667 4.000 3.667 3.667 3.333 2.667 18 15 22 27 22 22 18 12 20 83 138.2 134.5 1 2025 11 29 34301 34301.5 2622 21 2.333 3.333 3.667 3.333 4.000 4.000 3.000 3.000 9 18 22 18 27 27 15 15 19 84 170.7 166.0 1 2025 11 30 34302 34302.5 2622 22 3.667 4.000 2.333 3.000 1.333 2.333 3.000 2.667 22 27 9 15 5 9 15 12 14 102 180.4 175.4 1 2025 12 01 34303 34303.5 2622 23 4.000 1.000 1.667 1.667 2.000 3.000 1.667 1.333 27 4 6 6 7 15 6 5 10 153 196.7 191.2 0 2025 12 02 34304 34304.5 2622 24 2.333 2.667 1.000 1.667 1.000 2.000 2.667 2.000 9 12 4 6 4 7 12 7 8 169 200.9 195.2 0 2025 12 03 34305 34305.5 2622 25 1.667 2.333 1.667 2.667 4.000 4.333 6.667 5.000 6 9 6 12 27 32 111 48 31 173 209.5 203.6 0 2025 12 04 34306 34306.5 2622 26 5.000 5.000 4.667 4.000 4.333 4.000 3.667 2.333 48 48 39 27 32 27 22 9 32 182 219.9 213.6 0 2025 12 05 34307 34307.5 2622 27 3.000 3.333 3.333 2.667 2.333 2.000 3.333 2.667 15 18 18 12 9 7 18 12 14 166 206.1 200.2 0 2025 12 06 34308 34308.5 2623 1 3.667 3.667 4.333 3.333 3.000 2.333 1.667 1.667 22 22 32 18 15 9 6 6 16 159 199.9 194.0 0 2025 12 07 34309 34309.5 2623 2 2.333 3.667 3.000 2.000 1.333 0.000 0.000 0.333 9 22 15 7 5 0 0 2 8 161 194.4 188.6 0 2025 12 08 34310 34310.5 2623 3 0.000 0.000 0.000 0.000 -1.000 -1.000 -1.000 -1.000 0 0 0 0 -1 -1 -1 -1 -1 -1 -1.0 -1.0 0