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 | meu |
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Latest issue
:Issued: 2013 May 22 1205 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 30522 SIDC SOLAR BULLETIN 22 May 2013, 1205UT SIDC FORECAST (valid from 1230UT, 22 May 2013 until 24 May 2013) SOLAR FLARES : Eruptive (C-class flares expected, probability >=50%) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 22 May 2013 10CM FLUX: 127 / AP: 008 PREDICTIONS FOR 23 May 2013 10CM FLUX: 128 / AP: 007 PREDICTIONS FOR 24 May 2013 10CM FLUX: 130 / AP: 007 COMMENT:Solar activity was eruptive the last 24 hours with 6 C-class flares, with the largest one a C2.9 flare from AR NOAA 1756. NOAA 1748 (Catania 75) has become less complex and has only a small chance in producing an M-class flare. Geomagnetic conditions where quiet to moderate and are expected to remain so for the next 48 hours. TODAY'S ESTIMATED ISN : 084, BASED ON 11 STATIONS. SOLAR INDICES FOR 21 May 2013 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 125 AK CHAMBON LA FORET : 012 AK WINGST : 006 ESTIMATED AP : 007 ESTIMATED ISN : 083, BASED ON 11 STATIONS. NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM Catania/NOAA RADIO_BURST_TYPES NONE END BT #--------------------------------------------------------------------# # Solar Influences Data analysis Center - RWC Belgium # # Royal Observatory of Belgium # # Fax : 32 (0) 2 373 0 224 # # Tel.: 32 (0) 2 373 0 491 # # # # For more information, see http://www.sidc.be. Please do not reply # # directly to this message, but send comments and suggestions to # # 'sidctech@oma.be'. If you are unable to use that address, use # # 'rvdlinden@spd.aas.org' instead. # # To unsubscribe, visit http://sidc.be/registration/unsub.php # #--------------------------------------------------------------------#
Details
The SIDC ursigram starts with the code SIDC URSIGRAM YMMDD, whereY is the last digit of the year number,
MM is the number of the month,
DD is the day of the month.
A forecast is given 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.