A developing active sunspot complex appear poised to produce potentially significant energetic solar flare activity over the coming days. Observers interested in monitoring solar activity are encouraged to pay close attention to active Region 9906, now transiting the south-central portion of the solar disk. Complete details, as well as a map showing the location of this spot complex, are available at: http://www.spacew/com/astroalert.html. Any observed energetic activity from this spot complex over the coming days may be associated with Earthward directed coronal mass ejections which may produce enhancements in auroral activity ("northern lights"). The trajectory of any ejected mass could be fairly heavily directed Earthward. SpaceWeather.com: HERE COMES THE SUN: Twisted magnetic fields above sunspot 9906 erupted on April 17th (at 0800 UT) and hurled a lopsided coronal mass ejection toward Earth. The expanding cloud could ignite Northern Lights when it sweeps past our planet on April 19th or 20th. NOAA forecasters estimate a 20% chance of severe geomagnetic activity at middle latitudes. NOAA SEC Forecast: Solar Activity Forecast: Solar activity is expected to be moderate. Additional M-class flares, possibly including a major flare, are expected in Region 9906. Geophysical Activity Forecast: The geomagnetic field is expected to be at active to minor storm levels as the current disturbance recovers over the next 24 hours. Another disturbance at minor to major storm levels is expected to begin on 19 April in response to the LDE M2/CME which occurred on 17 April. The greater than 10 MeV proton event currently in progress is expected to end within the next 24 hours. Apr 19, 2002 shift report -------------------------- At the 10:00 am EDT telecon, we decided to activate SCS 107 at 14:15 UTC, and replan to start again at ~2002:111:02:01 UTC, emergence from the radiation belts. Chandra Radiation environment is high and decreasing. We have stopped science because of the effects of the CME of April 17. ACE 2 hr fluence is 3.4e8 vs. threshold 3.6e8. CRM-based orbital fluence is 3.5e9 vs. threshold 3.0e9. Chandra is in the magnetosphere.