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 tot

Latest issue

:Issued: 2022 Nov 27 1313 UTC
:Product: documentation at http://www.sidc.be/products/tot
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
#--------------------------------------------------------------------#
SIDC URSIGRAM 21127
SIDC SOLAR BULLETIN 27 Nov 2022, 1313UT
SIDC FORECAST (valid from 1230UT, 27 Nov 2022 until 29 Nov 2022)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 27 Nov 2022  10CM FLUX: 108 / AP: 012
PREDICTIONS FOR 28 Nov 2022  10CM FLUX: 107 / AP: 012
PREDICTIONS FOR 29 Nov 2022  10CM FLUX: 107 / AP: 007
COMMENT: The solar flaring activity is very low with only B-class flares
reported in the last 48 hours. As there are no complex active regions
observed on the visible side of the solar disc, we expect such a low level
of flaring activity to continue in the coming hours.
During last 24 hours there were no potentially Earth-directed CMEs detected
in the available coronagraph observations.

The greater than 10 MeV proton flux remained at the background levels, and
the greater than 2 MeV electron flux was under the 1000 pfu threshold
during last several days. The 24h electron fluence is at moderate to normal
level, and we expect it will remain so in the coming hours.

The solar wind speed has decreased and it is presently about the 415 km/s.
The interplanetary magnetic field magnitude is about 7 nT.
During last 24 hours the geomagnetic conditions were mostly unsettled. We
can expect unsettled to quiet geomagnetic conditions to persist in the
coming hours.

TODAY'S ESTIMATED ISN  : 067, BASED ON 10 STATIONS.
99999

SOLAR INDICES FOR 26 Nov 2022
WOLF NUMBER CATANIA    : ///
10CM SOLAR FLUX        : 107
AK CHAMBON LA FORET    : 026
AK WINGST              : 018
ESTIMATED AP           : 020
ESTIMATED ISN          : 069, BASED ON 16 STATIONS.

NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX  END  LOC    XRAY OP  10CM Catania/NOAA RADIO_BURST_TYPES 
NONE
END

UMAGF 30503 21127 1004/ 26069 1/026 23233 34323
UMAGF 31523 21127 0000/ 26004 1/018 24332 34343
BT
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Details

The SIDC ursigram starts with the code SIDC URSIGRAM YMMDD, where
Y is the last digit of the year number,
MM is the number of the month,
DD is the day of the month.
Besides the ISES codes like UMAGF, UCOSE and USSPS,
this message contains a forecast on:
the global flare probability,
geomagnetic disturbances,
solar proton events.
PREDICTIONS FOR "today" : 10CM FLUX: xxx / AP: xxx
PREDICTIONS FOR "today+1": 10CM FLUX: xxx / AP: xxx
PREDICTIONS FOR "today+2": 10CM FLUX: xxx / AP: xxx
COMMENT
ESTIMATED ISN : xxx, based on xx stations.
where ISN stands for International Sunspot Number.

OBSERVED SOLAR INDICES FOR THE DAY BEFORE
SUNSPOT INDEX : xxx, the Wolf number observed by Catania
10CM SOLAR FLUX : xxx,
AK CHAMBON LA FORET : xxx,
AK WINGST : xxx,
ESTIMATED AP : xxx,
ESTIMATED ISN : xxx, based on xx stations.

NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE

DAY gives the day-of-the-month.
BEGIN, MAX and END give the UT time of the different phases of the X-ray output of the event.
LOC gives the location of the event in heliographic coordinates.
XRAY gives the GOES X-ray class of the event.
OP lists the optical flare class.
10cm gives the 10.7 cm radioflux output of the event.
TYPE specifies the type of radiobursts observed.
Catania gives the Catania sunspot group number where the event happened.
NOAA is the corresponding NOAA active region number.
NOTE is the header of any other type of information, e.g. if a CME was observed associated with the event.


Check the ISES code book for information on ISES codes.