Space-based remote sensing is playing a prominent role for disaster management and socioeconomic development in Asia-Pacific. However, the unequal access to space technology in the region prompts the establishment of regional data-sharing agreements. This situation provides an opportunity for the region's leading space powers to enhance their regional influence. By invoking the concept of concept of Normative Power from the field of international relations, this article demonstrates (1) the applicability of this concept in the space sector, through an analysis of the European space sector and (2) the usefulness for decision-makers in advanced space powers to follow its methodological framework to design efficient strategies for enhanced regional influence. In particular, this paper argues that a tight collaboration with the Association of Southeast Asian Nations on space data sharing could participate in an ambitious Japanese diplomatic strategy of enhancement of its normative influence over the Asian space sector, in times marked by the rise of other powerful regional space actors.

天基遥感在亚太地区的灾害管理和社会经济发展中发挥着重要作用。然而，该区域对空间技术的不平等利用促使建立区域数据共享协定。这种情况为该地区的领先太空大国提供了增强其区域影响力的机会。通过援引规范性权力的概念从国际关系领域来看，本文通过对欧洲航天部门的分析证明了（1）该概念在航天部门的适用性；（2）先进航天大国的决策者遵循其方法框架的有用性设计有效的策略来增强区域影响力。特别是，本文认为，与东南亚国家联盟在空间数据共享方面的紧密合作可以参与一项雄心勃勃的日本外交战略，以增强其对亚洲航天领域的规范影响力，而其他强大国家的崛起则标志着这一时期。区域空间参与者。