* Astronomy

Asteroid (?) 2007 UN12  was discovered at 08:56 UT on 21 Oct. by the Catalina Sky Survey (CSS).
Closest approach was  on  Oct. 17.64   2007, at a distance of 0.0004658  AU.

MPEC 2007-U84

PL Sentry has posted 2007 UN12 as an impact risk

2007 UN12 Earth Impact Table
Date	Distance	Width	Sigma Impact	Sigma LOV	Stretch LOV	Impact Probability	Impact Energy	Palermo Scale	Torino Scale
YYYY-MM-DD.DD	(rEarth)	(rEarth)			(rEarth)		(MT)
2069-09-27.44	0.10	4.91e-04	0.000	-2.28355	8.28e+04	7.1e-07	4.55e-03	-8.29	0

 2007 UN12 = 7U20A07

Orbital Elements at Epoch 2454200.5 (2007-Apr-10.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000) Element Value Uncertainty (1-sigma) Units e 0.0104838257169035 3.1026e-05 a 0.989774075195656 2.191e-05 AU q 0.979397456292195 5.2382e-05 AU i 3.0558136806268 0.00045367 deg node 27.71546757384391 0.0046878 deg peri 94.35257516172359 0.097016 deg M 72.46522504237723 0.10441 deg tp 2454128.101480909053 (2007-Jan-27.60148091) 0.10672 JED period 359.6686114960568 0.98 0.011943 3.27e-05 d yr n 1.00092137176654 3.3235e-05 deg/d Q 1.000150694099116 2.214e-05 AU

H=28.6 = ~3 to 7 meters.

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