Viewing archive of lördag, 31 juli 1999
Solaktivitetsrapport
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport för sol- och geofysisk aktivitet 1999 Jul 31 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 212 publicerat klockan 2200Z på 31 JUL 1999IA. Analys av solfläcksgrupper och solaktivitet från 30-2100Z till 31-2100Z SOLAR ACTIVITY WAS LOW. SEVERAL C-CLASS FLARES WERE
PRODUCED BY REGION 8651 (N25E23). THE LARGEST WAS A C5/SF AT
30/2335Z. THIS REGION REMAINS THE LARGEST REGION ON THE DISK AND IS
AN E-TYPE GROUP WITH A WHITE LIGHT AREA OF AROUND 730 MILLIONTHS.
THE SECOND MOST INTERESTING GROUP IS REGION 8645 (S25W16) WHICH ALSO
PRODUCED SEVERAL C-CLASS FLARES. THIS REGION HAS MAINTAINED A WHITE
LIGHT AREA OF AROUND 600 MILLIONTHS AND IS A F-TYPE GROUP. NEW
REGION 8654 (N19W18) WAS NUMBERED TODAY.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. REGIONS 8645 AND 8651 HAVE THE POTENTIAL FOR PRODUCING
ISOLATED M-CLASS EVENTS.
IIA. Sammanfattning av geofysisk aktivitet 30-2100Z till 31-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO SEVERE STORM CONDITIONS. MAJOR
TO SEVERE STORMS WERE PRESENT EARLY IN THE PERIOD WITH UNSETTLED TO
ACTIVE LEVELS PREDOMINATE TOWARD THE END.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED WITH PERIODS OF ACTIVE CONDITIONS THE FIRST
DAY OF THE FORECAST. THE SECOND AND THIRD DAYS ARE EXPECTED TO
RETURN TO QUIET TO UNSETTLED CONDITIONS.
III. Chans för solutbrott från 01 AUG till 03 AUG
| M-klass | 80% | 80% | 80% |
| X-klass | 15% | 15% | 15% |
| Proton | 10% | 10% | 10% |
| PCAF | YELLOW | ||
IV. Penticton 10.7 cm Flux
Observerad 31 JUL 201 Prognoserat 01 AUG-03 AUG 195/190/190 90 Day Mean 31 JUL 162
V. Geomagnetiskt A-index
OBSERVED AFR/AP 30 JUL 041/036 ESTIMATED AFR/AP 31 JUL 018/020 PREDICTED AFR/AP 01 AUG-03 AUG 015/012-008/008-008/008
VI. Chanser för geomagnetisk aktivitet från 01 AUG till 03 AUG
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 15% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 20% | 20% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 05% | 01% | 01% |
All times in UTC
Senaste nytt
onsdag, 15 maj 2024
More X-flares!
tisdag, 14 maj 2024
X8.7 solar flare
måndag, 13 maj 2024
M6.6 solar flare with earth-directed CME
Senaste inläggen
AR3685 5Unspecified geomagnetic activity 1037Incoming Active Regions 345Unproven theories 452AR3664 1054
Fler foruminläggStöd SpaceWeatherLive.com!
För att vara tillgängliga vid stora norrskensutbrott måsta vi ha kraftiga servrar som kan hantera alla besökare. Donera och stöd vårt projekt, så att vi kan finnas online även under stora stormar!
Rymdvädersfakta
| Senaste X-utbrottet | 2024/05/15 | X2.9 |
| Senaste M-utbrottet | 2024/05/16 | M1.0 |
| Senaste geomagnetiska stormen | 2024/05/13 | Kp6 (G2) |
| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| april 2024 | 136.5 +31.6 |
| maj 2024 | 153.1 +16.6 |
| Last 30 days | 176.7 +74.1 |