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2004 UP10

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(385571) Otrera (also 2004 UP10) is a Neptune Trojan discovered by Scott S. Sheppard and Chadwick A. Trujillo in 2004. Only five others are known: 2001 QR322, 2005 TN53, 2005 TO74, 2006 RJ103 and 2007 RW10. They have the same orbital period as Neptune and orbit at the L4 Lagrangian point about 60 degrees ahead of Neptune.