2013-01-02T18:06:51.000Z http://sot.lmsal.com Mr. Sam Freeland Lockheed Martin Solar and Astrophysics Laboratory (LMSAL) http://www.lmsal.com Lockheed Martin Advanced Tech Center, 3251 Hanover Rd, O/ADBS, B/252, Palo Alto, CA 94304 null null HINODE SOT Arikawa Katsukawa Katsukawa 0 HOP 87 penumbral filament Sunspot PEN PEN 11040 12 16 508 76 88 2010-01-12T17:00:30.000Z 2010-01-12T19:24:34.000Z 16 508 Structure and dynamics of penumbral filament Mg sh-less IV 64"x82" + Ca H, GB, BC, RC, 75 "x87" Structure and dynamics of penumbral filament ivo://sot.lmsal.com/VOEvent#2010-01-12T17:00:00Z