SIDC URSIGRAM 30121 SIDC SOLAR BULLETIN 21 Jan 2003, 1230UT SIDC FORECAST (valid from 1230UT, 21 Jan 2003 until 23 Jan 2003) SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 21 Jan 2003 10CM FLUX: 134 / AP: 015 PREDICTIONS FOR 22 Jan 2003 10CM FLUX: 133 / AP: 013 PREDICTIONS FOR 23 Jan 2003 10CM FLUX: 135 / AP: 016 SOLAR INDICES FOR 20 Jan 2003 SUNSPOT INDEX : 161 10CM SOLAR FLUX : 138 AK CHAMBON LA FORET : 029 AK WINGST : 018 ESTIMATED AP : 018 NOTICEABLE EVENTS SUMMARY DAY BEGIN MAX END LOC XRAY OP 10CM TYPE Catania NOAA NOTE NONE END BT