GEOALERT SIDC

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

Latest issue

:Issued: 2018 Nov 17 1230 UTC
:Product: documentation at http://www.sidc.be/products/xut
#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium)                       #
#--------------------------------------------------------------------#
GEOALERT BRU321
UGEOA 30512 81117 1230/ 9930/ 
10172 20172 30172 
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 17 Nov 2018 until 19 Nov
2018
PREDICTIONS FOR 17 Nov 2018  10CM FLUX: 072 / AP: 003
PREDICTIONS FOR 18 Nov 2018  10CM FLUX: 072 / AP: 004
PREDICTIONS FOR 19 Nov 2018  10CM FLUX: 072 / AP: 004
COMMENT: There were no flares on the visible solar disc of the Sun in the
past 24 hours. The chance for a C flare in the next 24 hours is estimated
at 10%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available
coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24
hours, and is expected to stay at nominal levels in the next 24 hours.

In the past 24 hours, solar wind speed near Earth as registered by DSCOVR
varied between about 315 and 365 km/s, with current values around 330 km/s.
The Interplanetary Magnetic Field (IMF) was predominantly directed towards
the Sun and its magnitude varied between about 0 and 6 nT. Bz was never
below -5 nT.

Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0
and 1) were registered in the past 24 hours. Quiet to unsettled conditions
(K Dourbes < 4) are expected on November 17, 18 and 19.
TODAY'S ESTIMATED ISN  : 016, BASED ON 18 STATIONS.
99999
UGEOI 30512 81117 1230/ 16/// 
1//// 20710 3002/ 4//// 8//// 9//// 
99999

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

UGEOR 30512 81117 1230/ ///// ///// 
99999
USSPS 32404 15069 01232 48002 40702 01202
USSPS 21305 15160 01432 51001 41201 11304
UMAGF 30503 81117 1004/ 16069 1/005 20011 30011
UMAGF 31523 81117 0000/ 16006 1/002 20001 31101
#--------------------------------------------------------------------#
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Details

The Geoalert message starts with the code GEOALERT BRUXXX, where xxx is the day-of-the-year number.
Besides the ISES codes like UGEOA, UGEOI, UGEOR and USSPS, this message contains the following information:
PLAIN
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
99999
This gives the predicted 10.7 cm radioflux and the predicted Ap index for 3 days starting on the date of the message
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE

This is the header of a table that lists all major events.
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.