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Aktuální sluneční data:


Pro 23.únor 2024 - 12:30 UT(GMT)

Mezinárodní číslo slunečních skvrn : 102

Sluneční záblesky : M-class flares expected (probability >=50%)
Geomagnetická situace : Quiet (A<20 and K<4)
Sluneční protony : Quiet

SIDC - Solar Influences Data Analysis Center - Homepage SIDC - Solar Influences Data Center

SIDC Ursigram

3-day-forecast of solar and geomagnetic activity.
Source SIDC (RWC-Belgium)
Frequency Daily
Format Encoded data (ISES)
Mail header SIDC Ursigram
SIDC code meu

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Latest issue

:Issued: 2024 Feb 23 1231 UTC
:Product: documentation at http://www.sidc.be/products/meu
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
# (RWC Belgium)                                                      #
#--------------------------------------------------------------------#
SIDC URSIGRAM 40223
SIDC SOLAR BULLETIN 23 Feb 2024, 1230UT
SIDC FORECAST 
SOLAR FLARES  : M-class flares expected (probability >=50%)
GEOMAGNETISM  : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 23 Feb 2024  10CM FLUX: 176 / AP: 013
PREDICTIONS FOR 24 Feb 2024  10CM FLUX: 180 / AP: 007
PREDICTIONS FOR 25 Feb 2024  10CM FLUX: 184 / AP: 010

Solar Active Regions and flaring: Solar flaring activity over the past 24
hours was at high levels, with one X-class flares and one M-class flare.
The largest flare was a X6.3-flare, with peak time 22:34 UTC on February 22
and the second largest flare was a M4.8-flare, with peak time 20:46 UTC on
February 22. Both flares were associated with NOAA AR 3590 (beta-gamma-
delta). The third largest flare a C9.4-flare, with peak time 16:29 UTC on
February 22 was produced by a yet unnumbered active region behind the east-
limb. There are currently 2 numbered active regions on the visible disk.
NOAA AR 3590 (beta-gamma-delta) is the largest, most magnetically complex
region and has produced most of the flaring activity in the last 24 hours.
NOAA AR 3586 (alfa) has been stable and inactive. The solar flaring
activity is likely to be at moderate levels over the coming days with
C-class flares expected and M-class flares probable and a chance for an
X-class flare.

Coronal mass ejections: No Earth directed Coronal Mass Ejections (CME)s
have been observed in the last 24 hours.

Coronal holes: Two negative polarity coronal holes are crossing the central
meridian. One in the northern half of the Sun at high latitude and the
other in the Southern half at low latitude. A high-speed stream from the
southern coronal hole is expected to impact the Earth early on the 25th of
November.

Solar wind: Slow solar wind conditions were recorded over the past 24
hours. The solar wind speed as measured by ACE fluctuated between 304 km/s
to 368 km/s. The interplanetary magnetic field fluctuated between 1 nT and
7 nT, with the Bz reaching a minimum value of -5 nT. The phi-angle was in
the positive sector (directed away the Sun) with periods on the negative
sector. In the next 24-hours slow solar wind conditions are expected.

Geomagnetism: Geomagnetic conditions were globally and locally quiet (Kp 3
and K Bel 3) with some unsettled periods over the past 24 hours.

Proton flux levels: Over the past 24 hours the greater than 10 MeV GOES
proton flux was at nominal levels and is expected to remain so over the
next days. Some enhancements are possible in the case of an eruptive
activity from NOAA AR 3590.

Electron fluxes at GEO: The greater than 2 MeV GOES 16 electron flux was
below the 1000 pfu threshold and is expected to remain so in the upcoming
days. The 24h electron fluence was at nominal level and is expected to
remain so in the next days.




Zdroj : SIDC Ursigram


Předpověď sluneční aktivity pro období : February 23 - February 29, 2024

Zdroj : http://www.asu.cas.cz/~sunwatch


Poslední fotografie ze SOHO / SDO:
Různé barvy snímků prozrazují odlišné vlnové délky - každá vlnová délka je vyzařována plynem o určité teplotě: oranžová: 80 000 °C, modrá: 1 000 000 °C, zelená: 1 500 000 °C, hnědá: 2 500 000 °C.


He II/Si XI 30,4 nm
80 000 °C
EIT 304

Fe IX/X 17,1 nm
1 000 000 °C
EIT 171

Fe XII 19,5 nm
1 500 000 °C
EIT 195

Fe XV 28,4 nm
2 500 000 °C
EIT 284

SDO/HMI Continuum

SDO/HMI Magnetogram

LASCO C2

LASCO C3


sidc.oma.be/LatestSWData