On May 23, 2012 there were 1293 potentially hazardous asteroids.
| Asteroid | Date(UT) | Miss Distance | Mag. | Size |
| 2012 KA | May 17 | 0.6 LD | -- | 9 m |
| 2010 KK37 | May 19 | 2.3 LD | -- | 31 m |
| 4183 Cuno | May 20 | 47.4 LD | -- | 5.7 km |
| 2012 KW | May 21 | 3.4 LD | -- | 19 m |
| 2012 JV11 | May 22 | 6.7 LD | -- | 68 m |
| 2012 KT12 | May 23 | 1.4 LD | -- | 25 m |
| 2002 VX94 | May 26 | 72.8 LD | -- | 1.1 km |
| 2002 AC | Jun 16 | 62.2 LD | -- | 1.2 km |
| 1999 BJ8 | Jun 16 | 68.8 LD | -- | 1.1 km |
| 2005 GO21 | Jun 21 | 17.1 LD | -- | 2.2 km |
| 2003 KU2 | Jul 15 | 40.2 LD | -- | 1.2 km |
| 2004 EW9 | Jul 16 | 46.8 LD | -- | 2.1 km |
| 2002 AM31 | Jul 22 | 13.7 LD | -- | 1.0 km |
source: http://spaceweather.com/
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Newly discovered 2012 KT12 is a small 15-35 meter Apollo class near-Earth asteroid which will fly 0.0037 AU or 1.4 LD to both Earth and Moon on May 23. JPL Orbit: [link to ssd.jpl.nasa.gov]
Condition Code or orbit uncertainty estimate is a 8 on a scale of 0-9, with 0 being good, and 9 being highly uncertain.
Was first spotted May 19 but just added to NASA site today, and not yet posted on SpaceWeather list [link to spaceweather.com]source: http://www.godlikeproductions.com/forum1/message1876893/pg1
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For the following video poster:
Phil Plait is an astronomer, author, and science advocate. His blog, Bad Astronomy, is hosted by Discover Magazine, and he writes about news and current issues facing science. A common topic is astronomical doomsday: ways mythical and real the world can end. He's fascinated by asteroid and comet impacts, and is a big supporter of finding, tracking, and ultimately deflecting any dangerous rocks heading our way.
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