2025-08-31T18:31:59.000Z 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 SOTSP Arai K. Watanabe Tiwari(RCO) 492 HOP 492 SOOP and DKIST Active Region AR AR 5 20241019_184713 292 325 332 5 1 2047 2 1 1 2 0 21 2021 1016 0.992672 404.054 -321.784 322.072 162.304 2024-10-19T18:47:13.000Z 2024-10-19T19:51:53.000Z 404.054 -321.784 [SOOP: burst SOOP] Solar Orbiter & DKIST coordinated observation Fast map, 328x164", 1-side, Q75, no repeat Main Objective: Upflow region at AR border Scientific Justification: The upflow regions at the boundaries of active regions may be potential sources of the slow solar wind. However, the mechanisms driving plasma flow in these coronal upflow regions and the underlying layers of the solar atmosphere remain open questions. This study aims to understand the mechanisms responsible for plasma upflow at the borders of coronal active regions. To achieve this, we propose coordinated observations involving Solar Orbiter, DKIST, IRIS, and Hinode. Dates: The most important is to provide a coordinated observation between DKIST, Solar Orbiter (high-resolution instrument) and IRIS: start time: 19 October 2024 19:00 UT - end time: 19 October 2024 19:30 UT. It is possible to extend the coordinated observation time to provide a coordination between DKIST, IRIS and Hinode: start time: 19 October 2024 18:00 UT and end time: 19 October 2024 22:00 UT. ivo://sot.lmsal.com/VOEvent#2024-10-19T18:45:30Z