The 31 - 68 metre wide asteroid 2014 DG80 will make a close pass (15.5 lunar distances, 0.0400 AU), travelling at 6.46 km/second, to the Earth-Moon system on the 24th March, 2014 @ 05:00 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 23 14 03 50.8 -24 17 39 0.04024 1.0291 143.4 35.3 19.4 2014 03 24 14 26 54.0 -25 22 29 0.03999 1.0275 139.4 39.2 19.5 2014 03 25 14 50 18.5 -26 13 05 0.04009 1.0260 135.3 43.1 19.6 2014 03 26 15 13 34.4 -26 48 18 0.04054 1.0247 131.3 47.0 19.8 2014 03 27 15 36 12.9 -27 08 12 0.04132 1.0234 127.5 50.7 19.9 2014 03 28 15 57 49.6 -27 14 01 0.04241 1.0222 123.8 54.2 20.1 2014 03 29 16 18 06.8 -27 07 46 0.04378 1.0212 120.5 57.4 20.2 2014 03 30 16 36 53.8 -26 51 50 0.04540 1.0203 117.4 60.3 20.4 2014 03 31 16 54 06.2 -26 28 37 0.04724 1.0195 114.7 62.9 20.5 2014 04 01 17 09 44.8 -26 00 17 0.04927 1.0188 112.2 65.2 20.7 2014 04 02 17 23 53.9 -25 28 41 0.05147 1.0183 110.1 67.2 20.9 2014 04 03 17 36 39.8 -24 55 15 0.05381 1.0179 108.2 68.9 21.0 2014 04 04 17 48 09.8 -24 21 07 0.05626 1.0176 106.6 70.3 21.2 2014 04 05 17 58 31.4 -23 47 03 0.05882 1.0174 105.3 71.5 21.3 2014 04 06 18 07 51.9 -23 13 37 0.06147 1.0173 104.1 72.5 21.4 2014 04 07 18 16 18.2 -22 41 11 0.06418 1.0174 103.1 73.3 21.5 2014 04 08 18 23 56.3 -22 10 00 0.06696 1.0176 102.3 74.0 21.7 2014 04 09 18 30 51.9 -21 40 10 0.06978 1.0179 101.7 74.5 21.8 2014 04 10 18 37 09.6 -21 11 46 0.07264 1.0183 101.2 74.8 21.9