The 400 - 900 metre wide asteroid 2000 RS11 will make a close pass (13.7 lunar distances, 0.0352 AU), travelling at 11.39 km/second, to the Earth-Moon system on the 11th March 2014 @ 09:24 UT ±00:01.
See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2014 03 10 19 06 00.6 -32 23 14 0.03641 0.9784 65.4 112.6 16.2 2014 03 11 18 36 44.2 -24 13 53 0.03534 0.9828 71.8 106.3 15.8 2014 03 12 18 10 28.7 -15 32 19 0.03547 0.9872 78.7 99.3 15.4 2014 03 13 17 47 21.1 -07 01 24 0.03679 0.9916 85.6 92.3 15.2 2014 03 14 17 27 11.8 +00 44 32 0.03916 0.9961 91.9 85.8 15.1 2014 03 15 17 09 42.3 +07 27 57 0.04242 1.0007 97.4 80.2 15.0 2014 03 16 16 54 31.4 +13 06 20 0.04638 1.0053 102.0 75.4 15.1 2014 03 17 16 41 18.1 +17 45 49 0.05086 1.0099 105.8 71.4 15.2 2014 03 18 16 29 44.0 +21 35 34 0.05574 1.0146 108.9 68.1 15.3 2014 03 19 16 19 32.8 +24 44 48 0.06092 1.0193 111.5 65.4 15.4 2014 03 20 16 10 31.0 +27 21 34 0.06634 1.0240 113.6 63.0 15.5 2014 03 21 16 02 27.5 +29 32 21 0.07193 1.0288 115.3 61.1 15.6 2014 03 22 15 55 12.9 +31 22 17 0.07766 1.0336 116.8 59.3 15.8 2014 03 23 15 48 39.8 +32 55 23 0.08351 1.0385 118.1 57.9 15.9 2014 03 24 15 42 41.8 +34 14 45 0.08944 1.0433 119.1 56.6 16.0 2014 03 25 15 37 13.8 +35 22 49 0.09544 1.0482 120.1 55.4 16.1 2014 03 26 15 32 11.5 +36 21 29 0.1015 1.0532 120.9 54.4 16.2 2014 03 27 15 27 31.5 +37 12 13 0.1076 1.0581 121.6 53.4 16.3 2014 03 28 15 23 10.9 +37 56 15 0.1138 1.0631 122.2 52.6 16.4 2014 03 29 15 19 07.2 +38 34 30 0.1200 1.0681 122.8 51.8 16.5 2014 03 30 15 15 18.5 +39 07 45 0.1262 1.0731 123.3 51.1 16.6 2014 03 31 15 11 43.1 +39 36 39 0.1325 1.0781 123.7 50.4 16.7