Viewing archive of niedziela, 27 marca 2011

Raport aktywności słonecznej

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.
Raport aktywności słoneczno- geomagnetycznej 2011 Mar 27 2200 UTC
Przygotowane przez NOAA © SWPC i przetworzone przez SpaceWeatherLive.com

Połączenie raportów USAF/NOAA o słonecznej i geofizycznej aktywności

Numer SDF 086 wydany w 2200Z na 27 Mar 2011

IA. Analiza aktywności regionów słonecznych i aktywność od 26-2100Z do 27-2100Z

Solar activity was low. Region 1176 (S15E02) produced a C3/Sf at 27/0014Z with discrete radio emissions. Associated with this event was a CME, first observed in LASCO C2 and C3 imagery at 27/0200Z and 27/0242Z respectively. The CME appeared as a narrow band extending east, as viewed in LASCO, and had an estimated plane-of-sky velocity of 630 km/s. SDO/AIA 193 imagery indicated material movement in a wide band extending north through east with stronger movement in an easterly direction. Region 1176 showed little change during the period. At 27/0511Z, Type II (estimated shock velocity of 651 km/s) and Type IV radio signatures were observed. GOES13 and 15 were in eclipse phase, so GOES XRS data was not available. At 27/0512Z, limited GOES-15 SXI data indicated surging and material movement off the NE limb in the vicinity of new Region 1183 (N15E62). LASCO C2 (27/0536Z) and C3 (27/0606Z) imagery detected an asymmetric, partial-halo CME lifting off the NE limb with an estimated plane-of-sky velocity of 880 km/s. New Region 1183 rotated on as a large, 8-spot E-type group with beta-gamma magnetic characteristics. New Region 1182 (N13E01) evolved on the disk as a single spot unipolar group. The remaining groups were quiet and stable during the period. At this time, neither CMEs observed on 27 March appeared to have an Earth-directed component. The Penticton 10.7 cm flux and 90 day mean are estimated due to non-receipt of 27 Marchs flux reading.
IB. Prognoza aktywności słonecznej
Solar activity is expected to be moderate for the next three days (28-30 March). A chance for M-class activity exists on day one (28 March) becoming likely on days two and three (29 - 30 March) with a slight chance for X-class activity on 29 - 30 March. This expected increase in activity is due to the complex nature of Regions 1176 and 1183 plus the return of old Regions 1166 (N10, L=110) on 28 March and 1169 (N17, L=078) on 30 March. On their last transit across the disk, these regions produced a total of six M-class events and one X-class event.
IIA. Podsumowanie aktywności geofizycznej 26-2100Z do 27-2100Z
The geomagnetic field was quiet. ACE solar wind velocities were low, varying between 300 to 370 Km/s, while the Bz component of the IMF was generally north through a majority of the period.
IIB. Prognoza aktywności geofizycznej
The geomagnetic field is expected to be at quiet to unsettled levels, with isolated active periods, on day one (28 March) due to possible effects from the 24 March CME. Mostly quiet conditions are expected for day two (29 March). By day three (30 March), quiet to unsettled conditions, with isolated active periods, are expected due to the arrival of a recurrent coronal hole high speed stream.
III. Prawdopodobieństwa zdarzenia 28 Mar do 30 Mar
Klasa M50%60%70%
Klasa X05%10%10%
Proton01%01%01%
PCAFgreen
IV. Przepływ 10,7 cm z Penticton
  Zaobserwowano       27 Mar 117
  Przewidywane   28 Mar-30 Mar  125/125/130
  Średnia z 90 dni        27 Mar 097
V. Indeks geomagnetyczny A
  Zaobserwowano Afr/Ap 26 Mar  001/001
  Szacowane     Afr/Ap 27 Mar  001/001
  Przewidywane    Afr/Ap 28 Mar-30 Mar  010/010-005/005-010/010
VI. Prawdopodobieństwa aktywności geomagnetycznej 28 Mar do 30 Mar
A. Średnie szerokości geograficzne
Aktywne20%10%20%
Słaba burza05%01%05%
Bardzo znacząca burza01%01%01%
B. Wysokie szerokości geograficzne
Aktywne25%15%25%
Słaba burza10%01%10%
Bardzo znacząca burza01%01%01%

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Fakty na temat pogody kosmicznej

Ostatnie rozbłyski klasy X2024/03/28X1.1
Ostatnie rozbłyski klasy M2024/03/29M3.2
Ostatnia burza geomagnetyczna2024/03/25Kp5 (G1)
Spotless days
Ostatni dzień bez skazy2022/06/08
Monthly mean Sunspot Number
lutego 2024124.7 +1.7

Ten dzień w przeszłości*

Rozbłyski słoneczne
12001X2.45
22014X1.45
32023X1.2
42024M3.2
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ApG
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4200122G1
5199820G1
*od 1994

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