2017-01-20T11:42:25.000Z 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 SOTSP Hosoi Arikawa DeRosa (RCO) -> Okamoto 331 331 null HOP331 test (AR12626) AR, NL AR, NL 12626 Active Region 5 227 190 0 0 2017-01-20T10:30:00.000Z 2017-01-20T11:30:00.000Z 227 190 Flux cancellation and magnetic flux rope formation HOP331, 60"x120" fast map, repeats The aim of this IHOP is to make repeated observations of the likely sites of flux cancellation along the PIL of the target active region as it crosses the solar disk. We request combined IRIS, EIS, and XRT observations. IRIS studies with chromospheric and transition region lines will allow us to determine the locations and possible heights of reconnection occurring as a consequence of flux cancellation. Large FOV EIS observations will provide abundance measurements along the PIL and throughout the active region. XRT observations will be used to investigate the presence of a sigmoid/flux rope.