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 Jul 21 1230 UTC
:Product: documentation at http://www.sidc.be/products/tot
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
#--------------------------------------------------------------------#
SIDC URSIGRAM 80721
SIDC SOLAR BULLETIN 21 Jul 2018, 1230UT
SIDC FORECAST (valid from 1230UT, 21 Jul 2018 until 23 Jul 2018)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 21 Jul 2018  10CM FLUX: 070 / AP: 008
PREDICTIONS FOR 22 Jul 2018  10CM FLUX: 070 / AP: 005
PREDICTIONS FOR 23 Jul 2018  10CM FLUX: 069 / AP: 006
COMMENT: Solar activity is extremely low without any flaring activity
reported during last 24 hours. We do not expect any change of the activity
in the coming hours.
Coronagraph images do not show signatures of the Earth directed CMEs, and
the solar protons are at the background level.

Solar wind speed has increased and it presently amounts about 510 km/s. The
maximum solar wind speed (about 550 km/s), during last 24 hours was reached
at about 11:20 UT today. The interplanetary magnetic filed magnitude is
presently about 8 nT.
The patchy but rather extended equatorial coronal hole (possibly even
connected with the southern polar coronal hole), has reached central
meridian early this morning. The associated fast solar wind is expected at
the Earth in the mid of the day on July 24. The geomagnetic conditions are
presently unsettled to quiet and we expect such a geomagnetic conditions to
persist in the coming hours.

TODAY'S ESTIMATED ISN  : 000, BASED ON 12 STATIONS.
99999

SOLAR INDICES FOR 20 Jul 2018
WOLF NUMBER CATANIA    : 000
10CM SOLAR FLUX        : 071
AK CHAMBON LA FORET    : 015
AK WINGST              : 009
ESTIMATED AP           : 009
ESTIMATED ISN          : 000, BASED ON 30 STATIONS.

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

UMAGF 30503 80721 1004/ 20061 1/015 21221 33322
UMAGF 31523 80721 0000/ 20006 1/009 22113 32233
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.