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: 2018 Apr 22 1230 UTC
:Product: documentation at http://www.sidc.be/products/tot
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
#--------------------------------------------------------------------#
SIDC URSIGRAM 80422
SIDC SOLAR BULLETIN 22 Apr 2018, 1230UT
SIDC FORECAST (valid from 1230UT, 22 Apr 2018 until 24 Apr 2018)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 22 Apr 2018  10CM FLUX: 076 / AP: 006
PREDICTIONS FOR 23 Apr 2018  10CM FLUX: 074 / AP: 008
PREDICTIONS FOR 24 Apr 2018  10CM FLUX: 073 / AP: 006
COMMENT: There are presently two numbered sunspot groups on the visible
side of the Sun (NOAA ARs 2706 and 2707).
During last 24 hours solar flaring activity was at the low B-class level.
We expect such a level of activity to persist in the coming hours, an
isolated C-class flares are also possible but not very probable.
There were no wide and Earth directed CMEs observed in the coronagraph
images. The solar protons were at the background level.

The solar wind speed decreased and it presently amounts about 500 km/s. The
interplanetary magnetic field magnitude is stable, amounting about 6 nT
during last 36 hours. The geomagnetic conditions are presently quiet and we
expect quiet to unsettled geomagnetic conditions in the coming hours.
TODAY'S ESTIMATED ISN  : 021, BASED ON 23 STATIONS.
99999

SOLAR INDICES FOR 21 Apr 2018
WOLF NUMBER CATANIA    : ///
10CM SOLAR FLUX        : 077
AK CHAMBON LA FORET    : 018
AK WINGST              : 015
ESTIMATED AP           : 015
ESTIMATED ISN          : 025, BASED ON 29 STATIONS.

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

UMAGF 30503 80422 1004/ 21065 1/018 22224 33211
UMAGF 31523 80422 0000/ 21008 1/015 23232 33442
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.