Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: USA-193, wanda aka fi sani da NRO ƙaddamar da 21 (NROL-21 ko kawai L-21), wani tauraron dan adam ne na leken asiri na Amurka (zane-zane na radar) wanda aka ƙaddamar a ranar 14 ga Disamba, 2006. Shi ne karo na farko da aka kaddamar da shi ta hanyar United Launch Alliance. Mallakar Ofishin Bincike na Kasa (NRO), ainihin aikin jirgin da kuma manufar an rarraba su.  Tambaya: Yaushe aka kaddamar da USA-193?
14 ga watan Disamba 2006