# 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 2023 02 23 33291 33291.5 2585 10 4.333 3.667 3.000 2.667 2.667 4.000 3.333 3.667 32 22 15 12 12 27 18 22 20 89 148.2 145.1 1 2023 02 24 33292 33292.5 2585 11 2.333 1.000 2.000 1.333 1.667 0.667 0.000 0.333 9 4 7 5 6 3 0 2 4 117 164.1 160.7 1 2023 02 25 33293 33293.5 2585 12 0.667 0.333 1.667 2.000 2.000 3.333 3.000 3.333 3 2 6 7 7 18 15 18 10 126 279.3 273.7 1 2023 02 26 33294 33294.5 2585 13 3.333 2.333 3.000 3.333 3.000 1.667 5.000 5.667 18 9 15 18 15 6 48 67 24 118 159.0 155.9 1 2023 02 27 33295 33295.5 2585 14 5.000 6.000 6.667 6.667 6.333 6.667 6.333 6.000 48 80 111 111 94 111 94 80 91 127 161.2 158.1 1 2023 02 28 33296 33296.5 2585 15 5.667 4.667 3.000 3.000 1.667 1.333 4.000 4.333 67 39 15 15 6 5 27 32 26 92 160.9 157.9 1 2023 03 01 33297 33297.5 2585 16 3.333 1.000 1.333 3.000 0.667 1.333 2.000 2.000 18 4 5 15 3 5 7 7 8 93 162.0 159.0 0 2023 03 02 33298 33298.5 2585 17 1.000 1.333 1.667 2.000 1.333 1.667 2.667 3.667 4 5 6 7 5 6 12 22 8 100 168.8 165.8 0 2023 03 03 33299 33299.5 2585 18 4.000 3.667 3.333 3.667 3.667 1.667 4.000 4.333 27 22 18 22 22 6 27 32 22 121 190.9 187.5 0 2023 03 04 33300 33300.5 2585 19 3.333 3.000 3.000 3.333 2.000 2.333 3.000 4.000 18 15 15 18 7 9 15 27 16 132 181.6 178.6 0 2023 03 05 33301 33301.5 2585 20 3.333 3.333 4.000 2.667 4.000 3.333 4.333 3.667 18 18 27 12 27 18 32 22 22 150 179.8 176.8 0 2023 03 06 33302 33302.5 2585 21 4.000 3.000 2.667 2.333 2.667 3.000 2.667 3.667 27 15 12 9 12 15 12 22 16 190 188.0 185.0 0 2023 03 07 33303 33303.5 2585 22 2.667 3.000 3.000 3.000 2.000 1.000 1.000 0.667 12 15 15 15 7 4 4 3 9 182 180.3 177.5 0 2023 03 08 33304 33304.5 2585 23 1.000 1.667 2.000 1.667 1.000 1.333 3.000 2.667 4 6 7 6 4 5 15 12 7 156 181.9 179.2 0 2023 03 09 33305 33305.5 2585 24 2.000 3.667 4.000 3.667 3.000 2.667 2.333 2.333 7 22 27 22 15 12 9 9 15 158 178.8 176.2 0 2023 03 10 33306 33306.5 2585 25 3.333 2.000 1.667 0.333 0.667 2.667 2.000 3.000 18 7 6 2 3 12 7 15 9 144 171.2 168.8 0 2023 03 11 33307 33307.5 2585 26 3.000 2.000 1.333 0.333 0.667 0.333 1.667 2.667 15 7 5 2 3 2 6 12 6 140 157.4 155.3 0 2023 03 12 33308 33308.5 2585 27 2.667 2.000 3.000 2.333 0.667 0.333 0.667 0.667 12 7 15 9 3 2 3 3 7 131 150.0 148.1 0 2023 03 13 33309 33309.5 2586 1 0.667 0.000 0.333 0.333 0.333 1.333 0.333 0.667 3 0 2 2 2 5 2 3 2 102 143.3 141.5 0 2023 03 14 33310 33310.5 2586 2 2.333 3.667 3.333 3.333 3.000 3.000 2.667 4.333 9 22 18 18 15 15 12 32 18 111 138.5 136.9 0 2023 03 15 33311 33311.5 2586 3 3.667 5.333 4.333 4.000 2.667 1.667 2.000 5.667 22 56 32 27 12 6 7 67 29 106 135.7 134.2 0 2023 03 16 33312 33312.5 2586 4 4.000 2.667 0.667 1.000 0.000 0.333 0.667 0.333 27 12 3 4 0 2 3 2 7 95 135.4 133.9 0 2023 03 17 33313 33313.5 2586 5 0.333 1.333 1.667 2.667 2.000 0.333 0.333 2.000 2 5 6 12 7 2 2 7 5 69 134.2 132.9 0 2023 03 18 33314 33314.5 2586 6 2.333 2.333 1.667 2.333 2.000 1.333 2.000 1.000 9 9 6 9 7 5 7 4 7 44 140.3 139.0 0 2023 03 19 33315 33315.5 2586 7 1.667 2.667 2.333 1.333 1.333 2.333 3.000 1.667 6 12 9 5 5 9 15 6 8 72 142.7 141.4 0 2023 03 20 33316 33316.5 2586 8 3.000 0.667 0.667 2.000 3.667 4.000 1.667 2.667 15 3 3 7 22 27 6 12 12 81 156.1 154.8 0 2023 03 21 33317 33317.5 2586 9 2.667 1.000 1.667 2.000 1.000 2.333 1.333 2.333 12 4 6 7 4 9 5 9 7 95 151.6 150.4 0 2023 03 22 33318 33318.5 2586 10 4.000 3.667 2.667 3.333 2.333 2.667 3.000 0.667 27 22 12 18 9 12 15 3 15 99 158.9 157.7 0 2023 03 23 33319 33319.5 2586 11 1.333 2.000 2.667 4.667 7.000 5.000 6.333 7.333 5 7 12 39 132 48 94 154 61 113 151.0 150.0 0 2023 03 24 33320 33320.5 2586 12 7.333 7.667 6.333 4.333 2.333 3.333 4.333 -1.000 154 179 94 32 9 18 32 -1 -1 145 -1.0 -1.0 0