建立空間資訊對於國家來說相當重要，印尼是一個由島嶼組成的國家，位於三大地球板塊交界處包括：太平洋板塊、印澳板塊及歐亞板塊，因此許多天然災害威脅著印尼地區。精確且可更新的空間資訊對於印尼政府相當重要，現今科技之快速發展，使得高解析度衛星影像之獲取更為便利且具經濟價值。由於印尼領土分佈遼闊需要大量衛星影像才可涵蓋，因此衛星影像正射糾正及鑲嵌為必要之處理，而要進行衛星影像正射糾正必須先進行衛星軌道修正。The establishment of spatial information is an important undertaking for any nation. Indonesia is an archipelagic country. Geographically, Indonesia lies on three different tectonic plates: the Pacific, Indo-Australian and Eurasian plates making natural disasters an ever present threat in the region. Accurate and up-dateable spatial information is the most important resource for the Indonesian government to counteract this threat. Recent leaps in technology leaps have made acquisition of high resolution satellite images possible, which leads the way to convenient and cost-efficient acquirement of image data. Since Indonesia is spread over such a large area, many satellite images are needed to cover the area, making orthorectification and mosaicking of those images important. Hence, orbit adjustment is a prerequisite for the image orthorectification and geometric correction.
