The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-2.7′°, H: 30039nT, Z: 35360nT and F: 46397nT for May 1999.
Monthly average of the K-index daily sum is 13. indicates a moderate level of geomagnetic activity during the month.
Notable geomagnetic events include 0 magnetic storms, 1 si, 0 bay, 4 sfe, 2 pi and 0 pc.
The international 5 quietest days are the 11,16,17,22,31th.
The international 5 most disturbed days are the 1,2,13,18,25th.
Plot of the geomagnetic hourly value for May 1999
Plot of the K-index daily total sum for 1999
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 21 | moderately disturbed | pi | ○ | plot | |
| 2 | 19 | moderately disturbed | ○ | plot | ||
| 3 | 17 | moderately disturbed | plot | |||
| 4 | 08 | calm | plot | |||
| 5 | 13 | moderately calm | si | plot | ||
| 6 | 16 | moderately calm | plot | |||
| 7 | 13 | moderately calm | plot | |||
| 8 | 08 | calm | plot | |||
| 9 | 11 | moderately calm | plot | |||
| 10 | 08 | calm | sfe | plot | ||
| 11 | 01 | extremely calm | ○ | plot | ||
| 12 | 15 | moderately calm | plot | |||
| 13 | 28 | disturbed | ○ | plot | ||
| 14 | 15 | moderately calm | plot | |||
| 15 | 11 | moderately calm | pi | plot | ||
| 16 | 09 | calm | ○ | plot | ||
| 17 | 06 | calm | sfe | ○ | plot | |
| 18 | 28 | disturbed | ○ | plot | ||
| 19 | 15 | moderately calm | plot | |||
| 20 | 13 | moderately calm | plot | |||
| 21 | 08 | calm | plot | |||
| 22 | 06 | calm | ○ | plot | ||
| 23 | 15 | moderately calm | plot | |||
| 24 | 23 | disturbed | plot | |||
| 25 | 22 | moderately disturbed | ○ | plot | ||
| 26 | 12 | moderately calm | plot | |||
| 27 | 12 | moderately calm | plot | |||
| 28 | 11 | moderately calm | plot | |||
| 29 | 10 | calm | plot | |||
| 30 | 09 | calm | plot | |||
| 31 | 01 | extremely calm | ○ | plot |
*) Plot diagram opens in a separate window.
