Perhaps the Lunik space vehicle:<p><a href="https:&#x2F;&#x2F;www.cia.gov&#x2F;library&#x2F;center-for-the-study-of-intelligence&#x2F;kent-csi&#x2F;vol11no1&#x2F;html&#x2F;v11i1a04p_0001.htm" rel="nofollow">https:&#x2F;&#x2F;www.cia.gov&#x2F;library&#x2F;center-for-the-study-of-intellig...</a>