* Astronomy

The 1400 - 3100 metre wide asteroid 2001 RZ11 will make a close pass (34.2 lunar distances, 0.0879 AU), travelling at 29.33 km/second, to the Earth-Moon system on the 17th August 2014 @ 03:16 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 08 16    22 03 43.0 -37 36 08   0.09001 1.0954   155.8    22.3    12.4
2014 08 17    21 32 31.4 -28 56 02   0.08794 1.0974   164.4    14.4    12.1
2014 08 18    21 06 01.5 -19 47 07   0.08913 1.0996   167.9    11.1    12.0
2014 08 19    20 43 50.5 -10 58 51   0.09348 1.1019   163.2    15.4    12.3
2014 08 20    20 25 21.8 -03 06 27   0.1006  1.1044   155.7    22.1    12.7
2014 08 21    20 09 57.2 +03 35 39   0.1099  1.1069   148.5    28.5    13.1
2014 08 22    19 57 03.0 +09 08 38   0.1209  1.1096   142.2    33.9    13.5
2014 08 23    19 46 10.7 +13 41 17   0.1332  1.1123   136.9    38.4    13.8
2014 08 24    19 36 57.6 +17 24 15   0.1464  1.1152   132.5    42.0    14.1
2014 08 25    19 29 05.5 +20 27 27   0.1604  1.1182   128.7    44.9    14.4
2014 08 26    19 22 20.0 +22 59 07   0.1749  1.1213   125.5    47.2    14.6
2014 08 27    19 16 29.8 +25 05 47   0.1898  1.1245   122.7    49.1    14.9
2014 08 28    19 11 25.8 +26 52 33   0.2050  1.1278   120.4    50.6    15.1
2014 08 29    19 07 00.7 +28 23 21   0.2204  1.1312   118.3    51.8    15.3
2014 08 30    19 03 08.8 +29 41 12   0.2360  1.1347   116.4    52.8    15.5
2014 08 31    18 59 45.2 +30 48 30   0.2518  1.1383   114.8    53.6    15.7