H-alpha

SOHO/EIT, 195 A (original)

SOHO/EIT, 195 A (modified)

SOHO/EIT, 195 A (running difference)

    SOHO/EIT, 195 A (running difference images)

SOHO/EIT, 195 A (difference to 16:48 UT)

    SOHO/EIT, 195 A (images differencing to 16:48 UT)

SOHO/LASCO/C2

  SOHO/LASCO/C3

       Sagamore Hill radio profiles

       Illustration for FD of 27d and 28d

       See 4lines