The 120 - 260 metre wide asteroid 2014 AY28 will make a close pass (16.7 lunar distances, 0.0429 AU), travelling at 5.37 km/second, to the Earth-Moon system on the 17th March 2014 @ 03:34 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 03 15 13 32.72 +04 21.6 0.0434 1.033 151.4 27.4 16.3 2014 03 16 13 48.31 +05 43.2 0.0431 1.031 148.3 30.4 16.4 2014 03 17 14 04.08 +07 04.1 0.0429 1.030 145.1 33.5 16.4 2014 03 18 14 19.89 +08 23.0 0.0430 1.029 141.8 36.7 16.5 2014 03 19 14 35.57 +09 38.7 0.0433 1.028 138.6 39.8 16.6 2014 03 20 14 50.96 +10 50.1 0.0438 1.027 135.5 42.8 16.7 2014 03 21 15 05.93 +11 56.5 0.0446 1.027 132.4 45.7 16.8 2014 03 22 15 20.36 +12 57.4 0.0455 1.026 129.5 48.5 17.0 2014 03 23 15 34.17 +13 52.7 0.0466 1.025 126.8 51.1 17.1 2014 03 24 15 47.29 +14 42.3 0.0479 1.025 124.3 53.5 17.2 2014 03 25 15 59.68 +15 26.4 0.0493 1.024 121.9 55.7 17.3 2014 03 26 16 11.33 +16 05.3 0.0509 1.024 119.8 57.8 17.5 2014 03 27 16 22.23 +16 39.5 0.0525 1.023 117.8 59.6 17.6 2014 03 28 16 32.42 +17 09.4 0.0543 1.023 116.0 61.2 17.7 2014 03 29 16 41.90 +17 35.4 0.0562 1.023 114.4 62.7 17.8 2014 03 30 16 50.72 +17 58.0 0.0581 1.023 113.0 64.0 17.9 2014 03 31 16 58.92 +18 17.5 0.0601 1.023 111.8 65.1 18.0
