Chou Dean-yi explains that to obtain long-term continuous records of solar oscillations, and thereby improve the frequency resolution of the data, it is necessary to set up multiple telescopes at suitable longitudes around the world, so as to continuously observe the "unsetting sun." Therefore the first step in the program was to set up telescopes at points around the globe.
周定一表示，為取得長時間觀測太陽的震波連續數據，以提高頻率解析度，必須在全球適當的經度上放置多個望遠鏡，以隨時觀測「不落的太陽」，因此計畫的第一步是在全球各地裝設五架天文望遠鏡。