RT @MinorPlanetCtr: Asteroid 2013 PD39 flyby in ~ 30 mins (Sep 3 at 09:36 UT). Dist: 29.78 LD. Size: 28-90 m. bit.ly/14UGSXV
RT @MinorPlanetCtr: Asteroid 2013 PD39 flyby in ~ 30 mins (Sep 3 at 09:36 UT). Dist: 29.78 LD. Size: 28-90 m. bit.ly/14UGSXV