2018-09-04T12:33:24.000Z http://sot.lmsal.com Ted Tarbell LMSAL http://lmsal.com 3251 Hanover Rd, O/ADBS, B/252, Palo Alto, CA, 94304 +1-650-424-2400 tarbell@lmsal.com Hinode SOT Yoshitake Masuda Muhamad 206 206 null HOP 206 N-pole PCH PCH North pole 11 -18 844 0 0 2018-09-05T15:00:00.000Z 2018-09-05T18:05:05.000Z -18 844 Polar Panorama Map for understanding Polar Reversal in Cycle 24 Fast deep mode, 2048 slit position, LIMB ONLY To understand the fast solar wind, the relationship between photospheric magnetic fields and coronal structures in the polar coronal hole is very essential. During the polarity reversal, the opposite polarity magnetic field invade the polar region. At the time, the relationship between coronal activities/structures and photospheric magnetic field is very interesting for understanding the solar wind.