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Space Weather Indices Summary

==================================================================
     Date:  240513  240514  240515  240516  240517  240518  240519
------------------------------------------------------------------
    SWS T:   125.0   124.0   123.0   136.0   137.0   156.0  -999.0
------------------------------------------------------------------
     EISN:   222.0   185.0   195.0   201.0   182.0   163.0  -999.0
 F10 SSNf:   219.4   225.6   220.2   207.7   203.3   189.4  -999.0
FBAR SSNf:   148.0   148.6   149.2   149.8   150.3   150.9  -999.0
------------------------------------------------------------------
      F10:   215.4   219.8   216.0   207.2   204.1   194.3  -999.0
SWPC Pred:   220.0   215.0   205.0   200.0   200.0   205.0   195.0
     FBAR:   165.1   165.5   165.9   166.3   166.7   167.1  -999.0
------------------------------------------------------------------
   GFZ Ap:    29.0     7.0    10.0    25.0    30.0    12.0  -999.0
SWPC Pred:    23.0    18.0    15.0    10.0    13.0    15.0    13.0
------------------------------------------------------------------
===> No SSNe Analysis : Real-time foF2 Data Unavailable <===
==================================================================
GOES 1-8A X-ray flux at 2024-05-19T01:36:00: C1
24hr lower-decile/max GOES 1-8A X-ray flux: C1/C7
==================================================================
Real-time Geomagnetic Indices from GFZ Potsdam                    
                  06-09  09-12  12-15  15-18  18-21  21-24  00-03 
3-Hour ap (est)      9     15      7      7      5      5      0  
3-Hour Kp (est)     2+     3o     2o     2o     1+     1+     0o  
24-Hour Ap (est)    34     35     33     27     18     12      9  
==================================================================
Created on: Sun May 19 01:40:57 UTC 2024
[2024, NorthWest Research Associates, Inc]
 
Updated hourly at 40 minutes past the hour

The preceeding table is a listing of various space-weather indices from a variety of sources. The listings in the upper section of the table are daily values covering the past week, and the listings in the lower section (labeled Real-time Geomagnetic ...) are for the past 21 hours. A brief description of each parameter listed and the source of each is provided below:


  • SWS T: The daily T-index from the Austrailian Space Weather Services (SWS).

  • EISN: The Estimated International Sunspot Number from the WDC-SILSO, Royal Observatory of Belgium, Brussels.
  • F10 SSNf: SSN calculate from the 10.7cm solar radio flux (see F10 below and this link).
  • FBAR SSNf: SSN calculate from the 90-day mean F10.7 (see FBAR below and this link).

  • F10: The daily noon 10.7cm solar radio flux (F10.7) from the Dominion Radio Astrophysical Observatory (DRAO).
  • SWPC Pred: The predicted daily Penticton 10.7cm solar radio flux from the NOAA SWPC.
  • FBAR: The daily 90-day mean of F10.7.

  • GFZ Ap: Preliminary estimate of the daily Ap index from GeoForchungsZentrum Helmholtz Centre Potsdam.
  • SWPC Pred: Forecast of the daily Ap index form the NOAA SWPC.

  • GOES X-ray flux: The most recent 1-8 Angstrom (0.1-0.8 nm) solar x-ray flux from the primary GOES satellite in flare classification level (A, B, C, M, X). A flux level of '--' indicates that the flux is below the A classification level.
  • 24hr lower-decile GOES X-ray flux: The lower-decile 1-8 Angstrom (0.1-0.8 nm) solar x-ray flux from the primary GOES satellite for the previous 24 hours.
  • 3-Hour ap: Preliminary estimate of the geomagnetic ap index calculated for the 3-hour period at the column head. These (and the following two) indices are calculated by the GeoForchungsZentrum Helmholtz Centre Potsdam.
  • 3-Hour Kp: Preliminary estimate of the geomagnetic Kp index calculated for the 3-hour period at the column head.
  • 24-Hour Ap: Preliminary estimate of the 24-hour Ap index calculated for the 24-hour period ending at the end of the 3-hour period at the column head.

Notes:

  1. A -999.0 in the upper section is a missing-data indicator.

Plots and further information about these and other space-weather indices can be found on our space-weather indices page.

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