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Date: 2014-04-10 22:39:53Space Spaceguard Japan Spaceguard Association Bisei Spaceguard Center Catalina Sky Survey Impact event Asteroid 17286 Bisei Lincoln Near-Earth Asteroid Research Astronomical surveys Astronomy Planetary science | Microsoft PowerPoint - (Dr. Urakawa-using his pc)APRSAF_Hanoi6.pptx[読み取り専用]Add to Reading ListSource URL: www.aprsaf.orgDownload Document from Source WebsiteFile Size: 3,55 MBShare Document on Facebook |