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: 2017 Jun 24 1230 UTC
:Product: documentation at http://www.sidc.be/products/xut
#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium)                       #
#--------------------------------------------------------------------#
GEOALERT BRU175
UGEOA 30512 70624 1230/ 9930/ 
10242 20242 30242 
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 24 Jun 2017 until 26 Jun
2017
PREDICTIONS FOR 24 Jun 2017  10CM FLUX: 074 / AP: 006
PREDICTIONS FOR 25 Jun 2017  10CM FLUX: 074 / AP: 008
PREDICTIONS FOR 26 Jun 2017  10CM FLUX: 075 / AP: 018
COMMENT: Over the past 24 hours solar activity has been low. No significant
flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs)
have been detected. There's  a small northern coronal hole extending to
lower latitudes in the western hemisphere that may increase solar wind
speeds in a couple of days. Solar activity is expected to remain low over
the next 24 hours with a low probability of C-class flares and a very low
probability of M-class flares.
The solar wind speed has slowly increased from around 320 km/s to 400 km/s
over the past 24 hours. The total magnetic field strength has fluctuated
around 7 nT. The Bz component fluctuated between -7 nT and +7 nT.
Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index
1-2 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected
to be quiet but the increasing solar wind speeds may enhance geomagnetic
conditions.
TODAY'S ESTIMATED ISN  : 026, BASED ON 11 STATIONS.
99999
UGEOI 30512 70624 1230/ 23/// 
10023 20740 3006/ 4//// 80002 90050 
99999

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

UGEOR 30512 70624 1230/ ///// ///// 
99999
USSPS 81202 23023 02322 49003 45313 2/801 51008 14717 2/802
USSPS 21305 22149 02532 53010 15418 2/803 51006 44612 2/802
UMAGF 30503 70624 1004/ 23065 1/012 21111 32322
UMAGF 31523 70624 0000/ 23008 1/006 21111 31133
#--------------------------------------------------------------------#
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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.