Viewing archive of onsdag, 28 juli 2004
Geofysisk rapport
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.
:Product: 20040728SGAS.txt
:Issued: 2004 Jul 28 0250 UT
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.comUSAF/NOAAs sammanfattning av sol- och geofysisk aktivitet
SGAS nummer 210 publicerat klockan 0245Z på 28 Jul 2004 Den här rapporten har sammanställts med data från SWO på 27 JulA. Energihöga händelser
Start Max Ände Region Plats Xray På 245MHz 10 cm Sweep 0523 0523 0523 130 0541 0545 0552 0652 N02W53 M1.1 1n 320 100 0556 0556 0556 930 1127 1128 1128 100 1959 2020 2037 0652 N09W65 M1.5 1f 2346 0000 0011 0652 N10W54 M1.2 1f
B. Protonstormar
The greater than 10 MeV proton event that began
on 25/1855Z is still in progress. A rapid, short-lived increase in
the greater than 10 MeV protons to 2,090 pfu occurred with the shock
passage at 25/2250Z. Protons quickly declined and were straddling
the 10 pfu alert threshold by the end of the period.
C. Sammanfattning av geofysisk aktivitet
The geomagnetic field ranged from
active to severe storming. A strong sudden impulse (SI) of 95 nT
was observed on the Boulder magnetometer at 26/2228Z. This SI
followed the very fast (~31 hours) transit of the full halo CME
associated with the long duration M1 flare on 25/1514Z. Solar wind
speed increased from the already elevated levels near 600 km/s to
over 1050 km/s. After approximately four hours of fluctuating
between -15 and +15 nT, the IMF Bz rotated strong southward and
ranged from -15 to -25 nT for about 15 hours. The fast solar wind
speed and southward Bz combined to produce severe geomagnetic storm
levels at all latitudes from 27/0000Z to 27/1500Z. Solar wind speed
was still near 900 km/s by the end of the period but Bz was near
zero. The disturbance declined to minor storm levels to end the
period.
D. Stratwarm
Ingen
E. Dagligt index (uppskattade/förväntade värden i realtid)
10 cm 118 SSN 066 Afr/Ap 131/162 X-ray Background B4.4 Daglig protonenergi (flux-ackumulering över 24 timmar) GT 1 MeV 2.7e+08 GT 10 MeV 1.9e+06 p/(cm2-ster-day) (GOES-11 satellit synkron rotation W97 grader) Daglig elektronenergi GT 2 MeV 9.40e+07 e/(cm2-ster-day) (GOES-12 satellit synkron rotation W75 grader) K-index för 3 timmar Boulder 7 7 7 8 8 6 4 5 Planetair 8 7 8 8 9 7 5 5
F. Kommentarer
Ingen
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