* Astronomy

Blobrana · L

RE: Asteroid 2012 TC4

Blobrana · L

On October 12, 2017 the asteroid 2012 TC4 has a 3-sigma chance of passing between 0.00008818 and 0.002896 AU (0.034 to 1.127 LD, 13,200-433,200 km, 8,200-269,200 mi) from Earth.

Blobrana · L

Spoiler

Blobrana · L

Ephemeris

Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.  Mag
2012 10 12 004000 21 20 34.7 -19 38 18   0.0010  0.998  117.5  62.5  13.9
2012 10 12 005000 21 16 52.4 -20 11 57   0.0010  0.998  116.4  63.5  13.9
2012 10 12 010000 21 12 59.0 -20 46 43   0.0010  0.998  115.4  64.6  13.9
2012 10 12 011000 21 08 53.6 -21 22 39   0.0010  0.998  114.3  65.7  13.9
2012 10 12 012000 21 04 35.4 -21 59 43   0.00093 0.998  113.1  66.8  13.9
2012 10 12 013000 21 00 03.5 -22 37 58   0.00091 0.998  111.9  68.0  13.9
2012 10 12 014000 20 55 17.1 -23 17 22   0.00089 0.998  110.7  69.3  13.9
2012 10 12 015000 20 50 15.2 -23 57 54   0.00087 0.998  109.3  70.6  13.9
2012 10 12 020000 20 44 56.7 -24 39 32   0.00085 0.998  108.0  72.0  13.9
2012 10 12 021000 20 39 20.6 -25 22 14   0.00084 0.998  106.5  73.4  13.9
2012 10 12 022000 20 33 25.8 -26 05 55   0.00082 0.998  105.1  74.9  13.9
2012 10 12 023000 20 27 11.1 -26 50 30   0.00080 0.998  103.5  76.5  13.9
2012 10 12 024000 20 20 35.3 -27 35 52   0.00079 0.998  101.9  78.1  13.9
2012 10 12 025000 20 13 37.3 -28 21 51   0.00077 0.998  100.2  79.8  13.9
2012 10 12 030000 20 06 15.8 -29 08 17   0.00075 0.998   98.4  81.5  13.9
2012 10 12 031000 19 58 29.8 -29 54 56   0.00074 0.998   96.6  83.4  14.0
2012 10 12 032000 19 50 18.2 -30 41 34   0.00073 0.998   94.7  85.2  14.0
2012 10 12 033000 19 41 40.0 -31 27 51   0.00071 0.998   92.7  87.2  14.0
2012 10 12 034000 19 32 34.5 -32 13 27   0.00070 0.998   90.7  89.3  14.1
2012 10 12 035000 19 23 01.3 -32 57 59   0.00069 0.998   88.6  91.4  14.1
2012 10 12 040000 19 13 00.1 -33 41 01   0.00068 0.998   86.4  93.5  14.2
2012 10 12 041000 19 02 31.2 -34 22 05   0.00067 0.998   84.2  95.8  14.3
2012 10 12 042000 18 51 35.1 -35 00 42   0.00066 0.998   81.9  98.1  14.3
2012 10 12 043000 18 40 13.2 -35 36 23   0.00066 0.998   79.5 100.4  14.4
2012 10 12 044000 18 28 27.1 -36 08 36   0.00065 0.998   77.1 102.8  14.5
2012 10 12 045000 18 16 19.1 -36 36 55   0.00064 0.998   74.7 105.3  14.6
2012 10 12 050000 18 03 52.4 -37 00 52   0.00064 0.998   72.2 107.7  14.8
2012 10 12 051000 17 51 10.4 -37 20 04   0.00064 0.998   69.7 110.2  14.9
2012 10 12 052000 17 38 17.3 -37 34 13   0.00064 0.998   67.2 112.8  15.0
2012 10 12 053000 17 25 17.5 -37 43 07   0.00063 0.998   64.7 115.3  15.2
2012 10 12 054000 17 12 15.6 -37 46 39   0.00064 0.998   62.2 117.8  15.4
2012 10 12 055000 16 59 16.5 -37 44 49   0.00064 0.998   59.7 120.3  15.6
2012 10 12 060000 16 46 25.0 -37 37 43   0.00064 0.998   57.2 122.8  15.8

Blobrana · L

Ephemeris

Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   Mag
2012 10 11 100000 22 57 16.7 -02 30 21   0.0032  1.001  146.1  33.8  15.6
2012 10 11 110000 22 55 15.4 -02 53 46   0.0030  1.001  145.4  34.5  15.5
2012 10 11 120000 22 53 00.8 -03 19 41   0.0029  1.001  144.7  35.2  15.5
2012 10 11 130000 22 50 30.9 -03 48 32   0.0027  1.000  144.0  35.9  15.4
2012 10 11 140000 22 47 42.8 -04 20 48   0.0026  1.000  143.1  36.8  15.3
2012 10 11 150000 22 44 32.9 -04 57 09   0.0024  1.000  142.1  37.8  15.1
2012 10 11 160000 22 40 56.9 -05 38 21   0.0023  1.000  141.0  38.9  15.0
2012 10 11 170000 22 36 48.9 -06 25 25   0.0021  1.000  139.7  40.2  14.9
2012 10 11 180000 22 32 01.6 -07 19 38   0.0020  1.000  138.3  41.7  14.8
2012 10 11 190000 22 26 24.7 -08 22 40   0.0018  0.999  136.6  43.4  14.7
2012 10 11 200000 22 19 44.8 -09 36 40   0.0017  0.999  134.5  45.4  14.5
2012 10 11 210000 22 11 42.8 -11 04 30   0.0015  0.999  132.1  47.8  14.4
2012 10 11 220000 22 01 51.6 -12 49 57   0.0014  0.999  129.2  50.7  14.3
2012 10 11 230000 21 49 32.0 -14 57 54   0.0012  0.999  125.6  54.3  14.1
2012 10 12 000000 21 33 44.5 -17 34 32   0.0011  0.999  121.1  58.8  14.0
2012 10 12 010000 21 12 59.0 -20 46 43   0.0010  0.998  115.4  64.6  13.9
2012 10 12 020000 20 44 56.7 -24 39 32   0.00085 0.998  108.0  72.0  13.9
2012 10 12 030000 20 06 15.8 -29 08 17   0.00075 0.998   98.4  81.5  13.9
2012 10 12 040000 19 13 00.1 -33 41 01   0.00068 0.998   86.4  93.5  14.2
2012 10 12 050000 18 03 52.4 -37 00 52   0.00064 0.998   72.2 107.7  14.8
2012 10 12 060000 16 46 25.0 -37 37 43   0.00064 0.998   57.2 122.8  15.8
2012 10 12 070000 15 35 25.0 -35 21 47   0.00068 0.997   43.2 136.7  17.3
2012 10 12 080000 14 39 53.8 -31 33 33   0.00076 0.997   31.7 148.2  19.2
2012 10 12 090000 13 59 25.9 -27 32 54   0.00086 0.997   23.0 156.9  21.4
2012 10 12 100000 13 30 10.5 -23 57 38   0.0010  0.997   17.0 163.0  23.8

Google earth file: Asteroid 2012 TC4.kmz (16kb, kmz)

Blobrana · L

Orbital elements:
2012 TC4                                                 Earth MOID = 0.0001 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 322.00810              (2000.0)            P               Q
n   0.67724540     Peri.  233.68736     +0.30233884     -0.95316785
a   1.2842178      Node   198.71920     +0.88223745     +0.28295573
e   0.2940961      Incl.    1.40910     +0.36089930     +0.10680409
P   1.46           H   26.6           G   0.15           U   7

MPEC 2012 - T18

The 14 - 30 metre wide asteroid 2012 TC4 will make a close pass (0.2 lunar distances, 0.0006 AU), travelling at 7.14 km/second, to the Earth-Moon system on the 12th October, 2012 @ 05:17 UT ±00:15.

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

Ephemeris

Date       UT      R.A. (J2000) Decl.    Delta     r     El.    Ph.   Mag
2012 10 07 000000 23 30 22.8 +03 51 24   0.020   1.018  159.8  19.9  19.1
2012 10 08 000000 23 28 49.3 +03 34 16   0.016   1.014  158.4  21.3  18.7
2012 10 09 000000 23 26 22.2 +03 06 36   0.012   1.010  156.8  22.9  18.2
2012 10 10 000000 23 21 49.3 +02 14 23   0.0085  1.006  154.6  25.2  17.4
2012 10 11 000000 23 10 09.4 -00 00 51   0.0048  1.002  150.3  29.6  16.3
2012 10 12 000000 21 32 44.0 -17 44 16   0.0011  0.999  120.8  59.1  13.9
2012 10 13 000000 11 44 56.2 -06 40 07   0.0031  0.995   22.0 158.0  24.3
2012 10 14 000000 11 22 01.8 -02 16 51   0.0068  0.991   29.2 150.6  24.3
2012 10 15 000000 11 15 30.4 -01 00 39   0.011   0.988   32.1 147.6  24.7