| Observatory | Commencing time | Ending time | Geomagnetic field | Geoelectric field | |||||
| Type (sudden/gradual) | Amplitude of abrupt onset H (nT) g(nT) |
Range | Range | ||||||
| Hour Minute (UTC) |
Date Time (UTC) |
Horizontal component H (nT) |
Declination D (arcminute) |
Vertical component Z (nT) |
East-west component (mV/km) |
North-south component (mV/km) |
|||
| Kakioka | 10h 13m | 12d 17h | sudden | +21 | 98 | 9.5 | 41 | 183 | 32 |
| Memambetsu | 10h 13m | 12d 17m | sudden | +26 | 120 | 12.3 | 39 | 18 | 36 |
| Kanoya | 10h 13m | 12d 17h | sudden | +23 | 110 | 10.4 | 39 | 50 | 21 |
(*) Time is in UTC (Universal Time Coordinated).
(*) Time is given in 1-minute increments for the sudden commencement type and in 0.1-hour increments for the gradual commencement type.
(*) "-1" is displayed for the range, when it is unknown due to missing measurements, etc.
(*) The range may not be determined for a storm which is followed by the next one before its ending (the ending time is indicated by "C").
Plot of Kakioka 1-minute geomagnetic field for the geomagnetic storm on 11 May 2002.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 11 May 2002.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 11 May 2002.
*) Plot diagram opens in a separate window.
| Observatory | Commencing time | Ending time | Geomagnetic field | Geoelectric field | |||||
| Type (sudden/gradual) | Amplitude of abrupt onset H (nT) g(nT) |
Range | Range | ||||||
| Hour Minute (UTC) |
Date Time (UTC) |
Horizontal component H (nT) |
Declination D (arcminute) |
Vertical component Z (nT) |
East-west component (mV/km) |
North-south component (mV/km) |
|||
| Kakioka | 10h 49m | 23d 23h | sudden | +50 | 174 | 10.3 | 101 | 490 | 90 |
| Memambetsu | 10h 49m | 23d 23m | sudden | +55 | 213 | 14.8 | 41 | 37 | 110 |
| Kanoya | 10h 49m | 23d 23h | sudden | +55 | 195 | 9.4 | 94 | 137 | 53 |
(*) Time is in UTC (Universal Time Coordinated).
(*) Time is given in 1-minute increments for the sudden commencement type and in 0.1-hour increments for the gradual commencement type.
(*) "-1" is displayed for the range, when it is unknown due to missing measurements, etc.
(*) The range may not be determined for a storm which is followed by the next one before its ending (the ending time is indicated by "C").
Plot of Kakioka 1-minute geomagnetic field for the geomagnetic storm on 23 May 2002.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 23 May 2002.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 23 May 2002.
*) Plot diagram opens in a separate window.
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