Ephemeris
Date UT R.A. (J2000) Decl. Delta r El. Ph. Mag 2013 06 04 000000 02 15 42.9 -46 45 32 0.143 0.993 77.2 94.7 15.6 2013 06 05 000000 01 55 24.1 -47 21 38 0.135 1.001 80.4 92.0 15.4 2013 06 06 000000 01 32 14.5 -47 45 34 0.127 1.009 83.9 88.9 15.2 2013 06 07 000000 01 06 08.1 -47 51 21 0.121 1.018 87.9 85.3 14.9 2013 06 08 000000 00 37 14.9 -47 31 51 0.115 1.026 92.3 81.3 14.7 2013 06 09 000000 00 06 07.4 -46 39 41 0.110 1.035 97.2 76.7 14.5 2013 06 10 000000 23 33 41.8 -45 08 45 0.106 1.043 102.5 71.8 14.2 2013 06 11 000000 23 01 10.5 -42 56 07 0.103 1.052 108.2 66.5 14.0 2013 06 12 000000 22 29 47.3 -40 03 38 0.101 1.061 114.1 60.9 13.8 2013 06 13 000000 22 00 31.8 -36 38 07 0.101 1.070 120.1 55.3 13.7 2013 06 14 000000 21 34 00.2 -32 50 05 0.102 1.079 125.9 49.7 13.6 2013 06 15 000000 21 10 25.7 -28 51 31 0.104 1.087 131.4 44.5 13.5 2013 06 16 000000 20 49 44.6 -24 53 28 0.108 1.096 136.3 39.8 13.4 2013 06 17 000000 20 31 42.8 -21 04 37 0.113 1.106 140.7 35.6 13.4 2013 06 18 000000 20 16 02.0 -17 30 42 0.119 1.115 144.4 32.0 13.5 2013 06 19 000000 20 02 23.3 -14 14 48 0.125 1.124 147.4 29.1 13.5 2013 06 20 000000 19 50 28.9 -11 17 55 0.133 1.133 149.8 26.8 13.6 2013 06 21 000000 19 40 03.1 -08 39 42 0.141 1.142 151.5 25.1 13.7 2013 06 22 000000 19 30 52.6 -06 19 00 0.150 1.151 152.7 23.9 13.8 2013 06 23 000000 19 22 45.9 -04 14 16 0.159 1.161 153.4 23.1 13.9 2013 06 24 000000 19 15 33.7 -02 23 51 0.169 1.170 153.8 22.6 14.1 2013 06 25 000000 19 09 08.0 -00 46 07 0.179 1.179 153.8 22.3 14.2 2013 06 26 000000 19 03 22.5 +00 40 26 0.189 1.189 153.7 22.3 14.3 2013 06 27 000000 18 58 11.6 +01 57 08 0.200 1.198 153.3 22.4 14.5 2013 06 28 000000 18 53 30.9 +03 05 13 0.210 1.208 152.9 22.6 14.6 2013 06 29 000000 18 49 16.5 +04 05 43 0.222 1.217 152.3 22.8 14.7 2013 06 30 000000 18 45 25.4 +04 59 32 0.233 1.227 151.7 23.1 14.9
The 1200 - 2600 metre wide asteroid 1999 WC2 will make a close pass (39.2 lunar distances, 0.1007 AU), travelling at 20.38 km/second, to the Earth-Moon system on the 12th June, 2013 @ 17:02 UT ±00:01.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
