Tällä sivulla voit lukea NOAA SWPC:n julkaisemat kommentit auringon havaitusta aktiivisuudesta edellisen vuorokauden kohdalta sekä muutaman seuraavan vuorokauden kattavan ennusteen. Uusin alkuperäinen julkaisu on luettavissa täällä. Tiedot päivittyvät kaksi kertaa vuorokaudessa.
Solar activity reached low levels with several C-class flares produced by Region 3207 (S12E23, Cai/beta). The largest of this activity was a C2.9/1f flare observed at 03/1645 UTC. Little change was noticed in this region. Old Region 3204 (N24, L=030) produced a C3.9 flare at 03/0249 UTC. Decay was observed in Regions 3206 (S21W08, Axx/alpha) and 3208 (N16E27, Axx/alpha). New Regions 3209 (N18E56, Dao/beta) and 3210 (S15W05, Cao/beta) were numbered this period. An 8 degree long filament, centered near N37W06, erupted on the disk beginning at about 03/0844 UTC. LASCO C2 and STEREO Ahead COR2 imagery detected a CME signature off the NW limb, first visible at about 03/1036 UTC. Analysis and initial model output suggests no Earthward-directed component exists. However, follow on modeling of this CME is in progress. No other Earth-directed CMEs were detected in available coronagraph imagery.
Solar activity is expected to be very low, with C-class flares activity expected on 04-06 Feb.
Solar wind parameters were near nominal levels. Total field ranged from 5-11 nT, the Bz component varied between +/-8 nT and solar wind speeds averaged near 350 km/s. Phi angle was in a predominately negative orientation.
Solar wind parameters are expected to be at or near nominal levels on 04-05 Feb. Late on 06 Feb, parameters are expected to increase due to negative polarity CH HSS influence.
The geomagnetic field was at quiet to unsettled levels.
Mostly quiet levels are expected on 04-05 Feb followed by quiet to unsettled levels on 06 Feb due to CH HSS influence.