Study 000341: Acronym: JS_CH_280x256_2arc TARGET: Coronal Hole Coronal Hole study: JS_CH_280x256_2arc with 90s, modified version of study 267 to increase DN/pixel Study description: The target of this study is a polar coronal hole. EIS should be pointed to include the boundary of the coronal hole and the limb. The purpose is to obtain velocity maps of million degree plasma. 2"slit scan, FOV 280"x256", 90sec exp time. DCPM compression is used to get good line profile. Duration: 3h 45m Volume: 97 Mbits Instruction to planners: 1. It would be better to run REGCAL 071 & 072 studies prior to run this study. 2. Ideally this study should run repeatedly (e.g. 4 or 5 times consecutively). WARNING: None