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Solar Activity Report for 7/22/05

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  • David
    When sunspot region 786 rotated out of view, the sunspot number dropped as low as it can get. It dropped to zero. And it has stayed there for several days.
    Message 1 of 1 , Jul 22, 2005
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      When sunspot region 786 rotated out of view, the sunspot number
      dropped as low as it can get. It dropped to zero. And it has stayed
      there for several days. That might be an indicator that the solar
      minimum will arrive a little sooner than the projections say, which is
      January of 2007. Time will tell. Anyway, the Earth is inside of a
      solar wind stream coming from a coronal hole, and the speed is in the
      mid-500's. Thusfar, there hasn't been any geomagnetic activity, and
      none is forecasted. Despite the solar disk being currently devoid of
      sunspots, that may be about to change. Something launched a big CME
      off of the backside of the sun, and it was close enough to the eastern
      limb to be visible. Additionally, the background X-ray flux is
      beginning to rise, which is an indicator that there is a sunspot
      approaching. Stay tuned.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 0
      SFI : 74
      A index : 13
      K index : 3

      Solar wind speed : 558.3 km/sec
      Solar wind density : 0.6 protons/cc
      Solar wind pressure : 0.4 nPa

      IMF : 2.7 nT
      IMF Orientation : 1.4 nT South

      GOES-12 Background X-ray Flux level : A1

      Conditions for the last 24 hours :
      No space weather storms were observed for the past 24 hours.

      Forecast for the next 24 hours
      No space weather storms are expected for the next 24 hours.

      Solar activity forecast :
      Solar activity is expected to be very low.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at quiet to unsettled levels
      on 23 July as the coronal hole high speed stream wanes. Predominantly
      quiet conditions are expected on 24 and 25 July.

      Recent significant solar flare activity :
      None
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