# 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 03 25 33687 33687.5 2600 1 4.333 5.000 4.000 4.333 4.000 3.333 2.000 1.667 32 48 27 32 27 18 7 6 25 167 190.1 189.1 1 2024 03 26 33688 33688.5 2600 2 3.000 2.667 0.667 3.000 2.000 2.000 2.667 2.667 15 12 3 15 7 7 12 12 10 141 178.2 177.4 1 2024 03 27 33689 33689.5 2600 3 3.000 1.333 2.333 1.333 0.667 0.667 1.000 1.333 15 5 9 5 3 3 4 5 6 114 174.6 173.9 1 2024 03 28 33690 33690.5 2600 4 2.000 1.333 1.333 1.667 2.667 1.667 2.000 2.333 7 5 5 6 12 6 7 9 7 98 172.7 172.1 1 2024 03 29 33691 33691.5 2600 5 1.667 1.667 1.667 1.333 1.333 0.667 0.333 0.333 6 6 6 5 5 3 2 2 4 81 167.3 166.8 1 2024 03 30 33692 33692.5 2600 6 0.000 0.000 0.333 0.667 1.333 1.667 1.000 1.667 0 0 2 3 5 6 4 6 3 50 139.6 139.3 1 2024 03 31 33693 33693.5 2600 7 3.667 2.000 2.333 1.333 1.000 1.333 1.000 2.333 22 7 9 5 4 5 4 9 8 66 133.6 133.4 1 2024 04 01 33694 33694.5 2600 8 2.000 3.333 3.667 1.667 1.667 1.333 2.333 1.333 7 18 22 6 6 5 9 5 10 32 120.4 120.3 0 2024 04 02 33695 33695.5 2600 9 1.000 1.667 1.667 2.333 2.000 1.333 1.667 1.000 4 6 6 9 7 5 6 4 6 38 112.8 112.7 0 2024 04 03 33696 33696.5 2600 10 3.000 2.000 1.333 0.667 1.333 1.667 0.667 1.000 15 7 5 3 5 6 3 4 6 40 111.7 111.7 0 2024 04 04 33697 33697.5 2600 11 0.667 0.667 2.333 3.000 2.333 3.000 3.000 3.333 3 3 9 15 9 15 15 18 11 49 113.7 113.8 0 2024 04 05 33698 33698.5 2600 12 2.000 3.333 2.333 2.667 2.000 2.000 2.333 2.667 7 18 9 12 7 7 9 12 10 79 120.5 120.6 0 2024 04 06 33699 33699.5 2600 13 3.333 2.667 3.000 1.333 2.000 1.333 2.000 2.000 18 12 15 5 7 5 7 7 10 77 122.9 123.1 0 2024 04 07 33700 33700.5 2600 14 1.667 1.667 0.667 1.667 1.667 2.000 1.333 2.000 6 6 3 6 6 7 5 7 6 86 124.6 124.9 0 2024 04 08 33701 33701.5 2600 15 2.333 2.667 3.333 1.667 0.333 1.333 0.667 0.333 9 12 18 6 2 5 3 2 7 73 124.8 125.2 0 2024 04 09 33702 33702.5 2600 16 0.667 2.667 3.333 2.000 2.000 1.333 2.333 3.000 3 12 18 7 7 5 9 15 10 58 124.4 124.8 0 2024 04 10 33703 33703.5 2600 17 3.000 2.000 1.333 1.667 1.333 2.667 2.333 1.333 15 7 5 6 5 12 9 5 8 55 131.2 131.8 0 2024 04 11 33704 33704.5 2600 18 2.333 2.667 0.667 0.667 1.000 1.000 0.667 1.000 9 12 3 3 4 4 3 4 5 89 143.7 144.4 0 2024 04 12 33705 33705.5 2600 19 1.667 2.333 1.333 0.667 0.333 0.333 0.667 1.333 6 9 5 3 2 2 3 5 4 80 151.5 152.3 0 2024 04 13 33706 33706.5 2600 20 1.333 2.000 0.667 0.333 1.333 0.667 0.667 1.667 5 7 3 2 5 3 3 6 4 118 161.0 161.9 0 2024 04 14 33707 33707.5 2600 21 1.667 0.000 1.333 1.333 1.333 1.000 1.000 1.667 6 0 5 5 5 4 4 6 4 141 178.4 179.5 0 2024 04 15 33708 33708.5 2600 22 1.667 1.333 0.667 1.000 0.333 1.333 2.333 3.000 6 5 3 4 2 5 9 15 6 164 191.9 193.2 0 2024 04 16 33709 33709.5 2600 23 4.000 3.333 4.000 3.333 3.000 4.667 5.333 5.333 27 18 27 18 15 39 56 56 32 181 198.7 200.2 0 2024 04 17 33710 33710.5 2600 24 2.667 0.667 0.667 1.333 1.000 1.667 1.333 2.000 12 3 3 5 4 6 5 7 6 207 216.5 218.2 0 2024 04 18 33711 33711.5 2600 25 1.333 0.333 0.000 0.667 0.667 0.667 0.333 1.667 5 2 0 3 3 3 2 6 3 217 226.9 228.8 0 2024 04 19 33712 33712.5 2600 26 1.667 2.333 4.333 4.333 5.000 5.333 7.000 4.000 6 9 32 32 48 56 132 27 43 242 213.4 215.4 0 2024 04 20 33713 33713.5 2600 27 2.333 2.000 2.667 2.667 2.000 2.000 1.667 2.667 9 7 12 12 7 7 6 12 9 233 209.5 211.6 0 2024 04 21 33714 33714.5 2601 1 3.333 3.000 2.667 3.000 3.667 3.667 3.333 3.000 18 15 12 15 22 22 18 15 17 232 217.1 219.4 0 2024 04 22 33715 33715.5 2601 2 2.333 2.333 2.333 1.667 1.333 1.333 1.333 2.333 9 9 9 6 5 5 5 9 7 267 226.8 229.2 0 2024 04 23 33716 33716.5 2601 3 1.667 0.667 1.333 -1.000 -1.000 -1.000 -1.000 -1.000 6 3 5 -1 -1 -1 -1 -1 -1 263 -1.0 -1.0 0