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The 2009 WZ104 asteroid was discovered with 68-cm Schmidt Catalina Sky Surveytelescope of Mount Lemmon Observatory in Arizona (USA) in 25 of November 2009.The observations of the new object were confirmed with 60-cm reflector ofSchiaparelli observatory (Italy) and 35-cm Schmidt - Cassegrain telescope ofAlter Saltzberg observatory (Vienna, Austria). The asteroid was attributed aspotentially hazardous near Earth asteroid. The minimal orbit intersectiondistance is 0.0304 a.e.  The observations of the 2009 WZ104 asteroid were continued with MTM-500M50-cm meniscus telescope and ZA-320M 32-cm mirror astrograph of Pulkovoobservatory (Russia) since late 2009. The observations were made in theframework of NEOs investigation program. The following tasks were establishedfor the investigation: to get astrometric and photometric (in BVRI bands)series of observations, to improve the asteroid orbit on the base of theobservational data, to determine its taxonomic class and absolute magnitude, toinvestigate the dynamics of its rotation, to estimate its physical parameters.The asteroid was attributed to Aten group among NEAs.

Astrometric and Photometric Investigations of 2009 WZ104 Near Earth Asteroid