SOLAR ACTIVITY WAS LOW. NEW REGION 8450 (N21W18) EMERGED DURING THE PERIOD AND PRODUCED A MODERATE DURATION C3/2F PARALLEL RIBBON FLARE AT 27/1654Z. A LARGE PART OF THE MATERIAL IN A NEARBY FILAMENT FADED DURING THE EVENT. NO RADIO BURSTS ACCOMPANIED THIS EVENT. OTHER DISK REGIONS WERE STABLE OR EXHIBITED SLIGHT DECAY. THERE WERE SOME SOFT X-RAY ENHANCEMENTS OVER THE SOUTHWEST LIMB DURING THE PERIOD WHERE OLD REGION 8439 COMPLETED ITS WEST LIMB TRANSIT TWO DAYS AGO.

SOLAR ACTIVITY SHOULD BE LOW FOR 28-29 JAN. IF CURRENT TRENDS CONTINUE, VERY LOW LEVELS ARE POSSIBLE ON 30 JAN.

THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. SOLAR WIND DATA SHOWED A SLIGHT INCREASE IN VELOCITY AND BZ WAS SOUTHWARD FOR ALMOST ALL OF THE PERIOD.

THE GEOMAGNETIC FIELD SHOULD REMAIN QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.

  觀測的       27 JAN 125
  預測的   28 JAN-30 JAN  118/112/110
  90天平均值        27 JAN 144

OBSERVED AFR/AP 26 JAN  003/004
ESTIMATED AFR/AP 27 JAN  008/010
PREDICTED AFR/AP 28 JAN-30 JAN  010/008-010/007-010/006