EXTERNAL FIELDS/EFFECTS

 

The geomagnetic field saw active conditions today. The AP level was 15.  High latitude geomagnetic field  saw active conditions with AP 23. This storm continues the strongest at high latitudes since AP at high latitudes reached 45 on November 22, 2020. Strong excursions in the geomagnetic field can be accompanied by enhanced seismicity at high latitudes and near the geomagnetic equator in the next several days.

 

The geomagnetic field is expected to see minor storm periods February 23-24 and unsettled February 25. Solar activity is expected to be at quiet conditions February 23-25, 2021 with a slight chance (5%) of an M-class flare.  SWPC expects a proton storm with 1% likelihood.

 

The maximum disturbance in the geomagnetic field today occurred with KP 5 at 18:00, February 22, 2021.

 

The Wolf Sunspot number today was 11.  F 10.7 was 75 on February 22, 2021.

 

The last major Gamma Ray Burst (GRB) according to the online NASA Swift GRB Catalog was observed on February 18, 2021 at 13:35 UT with BAT Fluence  n/a erg/cm2 (MAGNITUDE: n/a), Associated earthquake: Fiji Islands, M 6.1 (15:30 UT), 13:35 UT Puerto Rico, Southern Alaska, Hawaii)

 

The last major Gamma Ray Burst (GRB) according to the online NASA Swift GRB Catalog was observed on February 17, 2021 at 23:25 UT with BAT Fluence  6.8e10-7 erg/cm2 (MAGNITUDE: n/a), Associated earthquake: M 6.1 Loyalty Islands (22:50 UT), M 4.9 Loyalty Islands (23:34))

 

The last major Gamma Ray Burst (GRB) according to the online NASA Swift GRB Catalog was observed on February 12, 2021 at 04:25 UT with BAT Fluence  8.0e10-7 erg/cm2 (MAGNITUDE: >19.0), Associated earthquake: Honshu, Japan, 7.1, Cook Strait, NZ M 4.9; Central Turkey M 4.7)

 

The last major Gamma Ray Burst (GRB) according to the online NASA Swift GRB Catalog was observed on February 11, 2021 at 08:43 UT with BAT Fluence  4.2e10-7 erg/cm2 (MAGNITUDE: >19.8), Associated earthquake: Loyalty Islands, M 5.7 (08:40 UT); Western Turkey M 3.8 08:45 UT)

 

 

 

SOLAR FLARE ACTIVITY

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

#-------------------------------------------------------------------------------

 

 

6280       1702   1707      1713   B4.5      (February 22, 2021)    1.8E-04  

6300       2119   2129      2136   B5.4      (February 22, 2021)    2.7E-04  

6310       2234   2239      2250   B1.5      (February 22, 2021)    1.3E-04  

 

AP INDICIES

 

AUGUST 2020

 

DATE: 1  2   3  4  5  6   7  8  9  10   11  12  13  14  15

 

AP:   3  9  16  8  5  5   4  5  3   3    3   3   4   4   3                 

 

DATE: 16   17  18   19  20  21  22  23  24  25  26  27  28  29  30 31   

 

AP:    4    3   7    6   3   4   8   7   3   4   7   8  10  14   9 26                

 

 

SEPTEMBER 2020

 

DATE: 1  2   3  4  5  6   7  8  9  10   11  12  13  14  15

 

AP:  16  9   4  8  6  4   4  4  1   2    3   5   6  11   7                 

 

DATE: 16   17  18   19  20  21  22  23  24  25  26  27  28  29  30    

 

AP:    3    4   5    3   4   5   6  11  19  20  27  24  33  16  19

 

 

OCTOBER 2020

 

DATE: 1  2   3  4  5  6   7  8  9  10   11  12  13  14  15

 

AP:  11  9   6  4  8  7   5  3  2   2    3   4   3   2   3                 

 

DATE: 16   17  18   19  20  21  22  23  24  25  26  27  28  29  30  31    

 

AP:    4    5   3    6   4  10   6  12  17  15  15   9  12  14   5   6

 

NOVEMBER 2020

 

DATE: 1  2   3  4  5  6   7  8  9  10   11  12  13  14  15

 

AP:  10  3   3  3  4  8   7  5  1   2    4   3   3   3   4                 

 

DATE: 16   17  18   19  20  21  22  23  24  25  26  27  28  29  30      

 

AP:    2    3   4    3   8  12  27   8   4   7   7   8  10   6   8    

 

 

DECEMBER 2020

 

DATE: 1  2   3  4  5  6   7  8  9  10   11  12  13  14  15

 

AP:   2  4   3  2  5  6   3  5  7   8    7   4   5   3   3                 

 

DATE: 16   17  18   19  20  21  22  23  24  25  26  27  28  29  30 31     

 

AP:    3    2   3    5   4  12  13  12  10   5   4   6   7   7   9  3 

 

JANUARY 2021

 

DATE: 1  2   3  4  5  6   7  8  9  10   11  12  13  14  15

 

AP:   4  2   2  3 11 11   6  2  3   3   14   9   4   2   3                 

 

DATE: 16   17  18   19  20  21  22  23  24  25  26  27  28  29  30 31     

 

AP:    0    3   4    6   6   3   4   5   5  17  12  11   5   3   2  1  

 

 

FEBRUARY 2021

 

DATE: 1  2   3  4  5  6   7  8  9  10   11  12  13  14  15

 

AP:   5 17  14  7  6  7  21  6  4   3    4   5  13   4   5                     

 

DATE: 16   17  18   19  20  21  22  23  24  25  26  27  28                

 

AP:   15    8   5   17  20  20  17