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: 2019 Jan 15 1230 UTC
:Product: documentation at http://www.sidc.be/products/xut
#--------------------------------------------------------------------#
# GEOALERT message from the SIDC (RWC-Belgium)                       #
#--------------------------------------------------------------------#
GEOALERT BRU015
UGEOA 30512 90115 1230/ 9930/ 
10152 21152 30152 
99999
PLAIN
NOTE: the above forecasts are valid from 1230UT, 15 Jan 2019 until 17 Jan
2019
PREDICTIONS FOR 15 Jan 2019  10CM FLUX: 070 / AP: 007
PREDICTIONS FOR 16 Jan 2019  10CM FLUX: 070 / AP: 017
PREDICTIONS FOR 17 Jan 2019  10CM FLUX: 070 / AP: 013
COMMENT: Solar X-ray flux remained below B level throughout the period.
There are no active regions on disk and X-ray flux is expected to continue
to be below C level.

No earth directed CMEs have been recorded.

The proton flux levels were at background values and are expected to remain
so.

Solar wind was close to nominal with Solar wind speed recovering from
around 400 km/s at the start of the period to a minimum of 330 km/s, while
presently around 360 km/s. Total magnetic field was in the 2-8.5 nT range
with Bz variable. The magnetic field phi angle was in the negative sector.
Solar wind may become somewhat enhanced again tomorrow under the possible
influence of the coronal hole that passed central meridian midnight January
12/13.

Geomagnetic conditions were quiet to unsettled (local K Dourbes and NOAA Kp
1-3).
Quiet to unsettled conditions are expected over the next days with a
possibility for an isolated active period.
TODAY'S ESTIMATED ISN  : 000, BASED ON 14 STATIONS.
99999
UGEOI 30512 90115 1230/ 14/// 
1//// 20700 3010/ 4//// 8//// 9//// 
99999

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

UGEOR 30512 90115 1230/ ///// ///// 
99999
UMAGF 30503 90115 1004/ 14066 1/013 21112 31331
UMAGF 31523 90115 0000/ 14007 1/010 22222 31314
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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.