List of 1999 Geomagnetic Storms

#    begin    -    end         Ap           Type     Solar Sources               Additional notes

1  01/23 12 - 01/23 24    24           Minor                                 Predicted by SSM in Comm #1
2  02/11 12 - 02/12 24  24-27        Minor                                       Unnpredicted
3  02/17 07 - 02/19 24  20-60    Minor-Severe   ADF, SF-CH-DSF    Prd by SSM in Comm #3
4 02/28 12 - 03/02 12  20-50  Moderate-Severe SDF-HCS       Prd by SSM with the 1.5 day error
5 03/03 12 - 03/05 18  20-30        Minor          CH                         Unpredicted
6 03/06 18 - 03/07 21    25           Minor          CH                         Predicted by SSM
7 03/08 21 - 03/10 21  20-30        Minor          SF-SDF          Prd by SSM with 2 days error
8 03/29  00-03/30 12     25           Minor          SDF-HCS       Prd by SSM with 12 hrs error
9 04/16 10 -04/17 12     50           Severe      SF-DSF-HCS   Prd by SSM and SEC with +-0.5 day error 0 04/19 18 -04/20 24     22           Minor      CH-DSF           Prd by SEC with -day error
1 04/29 10 -04/30 12     32           Moderate   CH-ADF         Prd by SEC
2 05/01 00 -05/01 12     21           Minor        CH                 Prd by SEC and SSM
3 05/13 00 -05/14 00     26           Minor     SF-ADF-HCS    Prd by SEC and SSM  with +0.5 day error
4 05/18 00 -05/18 24     26           Minor     SF-CH-ADF-HCS         Unpredicted
5 05/24 21 -05/25 12     24           Minor     DSF-HCS          Prd by SSM  with -1 day error
6 06/26 06 -06/26 24     20           Minor     ADF                              Unpredicted
7 06/27 12 -06/28 12     27           Minor     SF-CH-DSF         Predicted by Meudon
8 07/02 00 -07/02 24     29           Minor     SF-DSF               Predicted by SSM
9 07/12 00 -07/12 12     21           Minor     ADF                    Unpredicted
0 07/21 15 -07/22 24     24           Minor     AFS                     Predicted by Meudon
1 07/30 06 -07/31 12     38           Moderate  SF-DSF-HCS      Not predicted
2 07/31 18 -08/01 06     24           Minor       SF                     Predicted by SSM
 
 
 
 
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