[252] Satellite Radio Footprints / 衛星行徑軌跡, 2005

Footprints of radio direct broadcasting satellites (World Space Channels on XM, AmeriStar, AfriStar, AsiaStar).

直播衛星的行徑軌跡(世廣衛星公司在XM衛星廣播的頻道、AmeriStar衛星、AfriStar衛星、AsiaStar衛星)