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Lightcurves
2001 YB5

2.5 hours ?

2001 YB5 Light Curve

This near earth asteroid was discovered on December 26-7, 2001 and made its closest pass to Earth on January 7, 2002. This was initially listed as a potential collision when when first discovered. Kyle Smalley collected 139 ten second exposures from Powell Observatory on December 31, 2001. These were reduced and plotted and the resulting analysis suggested a 2.5 hour period. For a 250-500 meter object this would suggest a monolithic body if the period determination is accurate.

MPO Canopus Data File is available on request.