The 34 - 77 metre wide asteroid 2014 FS52 will make a close pass (15.3 lunar distances, 0.0392 AU), travelling at 15.09 km/second, to the Earth-Moon system on the 11th April, 2014 @ 07:50 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).
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2014 04 10 17 21.43 -03 21.9 0.0409 1.022 118.2 59.8 19.7 2014 04 11 18 10.63 -02 54.2 0.0393 1.014 106.8 71.0 20.0 2014 04 12 19 01.28 -02 17.5 0.0396 1.007 95.1 82.6 20.4 2014 04 13 19 48.80 -01 36.9 0.0418 0.999 84.2 93.4 20.9 2014 04 14 20 30.06 -00 58.1 0.0456 0.992 74.9 102.6 21.5 2014 04 15 21 04.17 -00 24.5 0.0506 0.985 67.3 110.0 22.2 2014 04 16 21 31.74 +00 03.2 0.0564 0.978 61.4 115.7 22.7 2014 04 17 21 53.93 +00 25.6 0.0630 0.971 56.8 120.1 23.3 2014 04 18 22 11.90 +00 43.8 0.0700 0.964 53.3 123.3 23.8 2014 04 19 22 26.61 +00 58.8 0.0774 0.957 50.6 125.8 24.2 2014 04 20 22 38.83 +01 11.2 0.0850 0.950 48.6 127.6 24.5 2014 04 21 22 49.10 +01 21.9 0.0929 0.944 47.0 128.9 24.8 2014 04 22 22 57.86 +01 31.1 0.101 0.938 45.8 129.8 25.1 2014 04 23 23 05.42 +01 39.3 0.109 0.931 44.9 130.4 25.3 2014 04 24 23 12.02 +01 46.6 0.117 0.925 44.2 130.7 25.5 2014 04 25 23 17.86 +01 53.4 0.126 0.919 43.8 130.8 25.6 2014 04 26 23 23.06 +01 59.8 0.134 0.913 43.5 130.7 25.7 2014 04 27 23 27.75 +02 05.8 0.143 0.908 43.3 130.5 25.8 2014 04 28 23 32.01 +02 11.6 0.151 0.902 43.2 130.2 25.9 2014 04 29 23 35.92 +02 17.3 0.160 0.897 43.2 129.8 26.0 2014 04 30 23 39.52 +02 22.8 0.169 0.892 43.3 129.2 26.0
