SS-520 Nano Satellite Launcher and its Flight Result

The SS-520 is a two-stage solid fueled sounding rocket, designed to carry research payloads on sub-orbital missions to altitudes of 1000km (100kg). ISAS/JAXA has modified with the addition of a small third stage and a minimum of attitude control system to insert a 3U-class of small satellite into a low Earth orbit .This 3-staged launch vehicle\u27s specification is 9.54m length, 0.52m diameter and 2.6t of Gross mass at launch. In January 2018, SS-520-5 was launched with CubeSat (TRICOM-1R) after the launch failure one year before. The launch this time was in good shape, and the satellite was inserted into planned orbit. By the quick look, the satellite works as planned. This development program is funded by the Ministry of Economy and, Trade and Industry JAPAN and industry investments

Prophylactic clip closure for mucosal defects is associated with reduced adverse events after colorectal endoscopic submucosal dissection: a propensity-score matching analysis

博士（医学）乙日本医科大学202