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: 2017 Nov 19 1236 UTC
:Product: documentation at http://www.sidc.be/products/tot
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
#--------------------------------------------------------------------#
SIDC URSIGRAM 71119
SIDC SOLAR BULLETIN 19 Nov 2017, 1236UT
SIDC FORECAST (valid from 1230UT, 19 Nov 2017 until 21 Nov 2017)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 19 Nov 2017  10CM FLUX: 075 / AP: 010
PREDICTIONS FOR 20 Nov 2017  10CM FLUX: 073 / AP: 015
PREDICTIONS FOR 21 Nov 2017  10CM FLUX: 071 / AP: 009
COMMENT: Both sunspot groups, which were observed on the visible side of
the solar disc during last 24 hours, are decaying. Solar flaring activity
was low and will remain so in the coming hours with very low probability
for C-class flares (about 5%).
There were no Earth directed CMEs observed since last report, and the solar
protons remained at background level.

The Earth is within the slow solar wind (speed of about 360 km/s) and the
interplanetary magnetic field magnitude is very low presently amounting
about 1 nT.
The fast solar wind associated with the large equatorial coronal hole
(reached central meridian in the early morning of November 16) is expected
to arrive at the Earth later today. The geomagnetic conditions are
presently quiet and we expect unsettled to active geomagnetic conditions
starting from this evening, due to the expected arrival of the fast solar
wind.
TODAY'S ESTIMATED ISN  : 000, BASED ON 19 STATIONS.
99999

SOLAR INDICES FOR 18 Nov 2017
WOLF NUMBER CATANIA    : ///
10CM SOLAR FLUX        : 076
AK CHAMBON LA FORET    : 013
AK WINGST              : 008
ESTIMATED AP           : 008
ESTIMATED ISN          : 015, BASED ON 20 STATIONS.

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

UMAGF 30503 71119 1004/ 18067 1/013 22122 32311
UMAGF 31523 71119 0000/ 18005 1/008 22222 32223
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.