EL ASTEROIDE 2007 TU24 SE APROXIMARA A 500.000 KILOMETRSO DE LA TIERRA el 29 DE ENERO DE 2008 El asteroide 2007 TU24, descubierto por el equipo de Christensen y Larson del Catalina Sky Survey el pasado 11 de octubre, cuando se encontraba a 60 millones de Kms. de la Tierra y su magnitud era de 20; se aproximará a 500.000 kilómetros de la Tierra el próximo 29 de enero de 2008 (2,38h TU), alcanzando la magnitud 10. 2007 TU24 posee una magnitud absoluta H=20, lo que indica un diámetro de entre 300 y 400 metros. Si bien se descarta el choque en 2008, figura en la escala de riesgos (0 Torino), con una probabilidad acumulada en las 300 futuras aproximaciones de P=1/10000, según estimaciones del J.P.L. De chocar con la Tierra el impacto causaría sobre nuestro planeta importantes daños regionales equivalentes a una explosión de 1200 megatones. La información orbital elaborada por SADEYA/Infortecnica se basa en 41 observaciones con un arco de sólo tres días. Los resultados son, por tanto, provisionales si bien excluyen el impacto a finales de enero de 2008. EVOLUCÓN ORBITAL DE 2007 TU24 ELEMENTOS HELIOCENTRICOS Perihelio 2008 Ene 7.181221 TT = 4:20:57 (JD 2454472.681221) Epoca 2007 Oct 15.0 TT = JDT 2454388.5 M 329.79887 (2000.0) P Q n 0.35876321 Peri. 334.23514 -0.18135243 -0.98022749 a 1.96154124 Nodo 126.11497 0.91836367 -0.19759447 e 0.5160808 Incl. 5.62301 0.35173776 0.01051051 P 2.75 H 20.2 G 0.15 q 0.94922744 Q 2.97385503 Perihelio 2008 Ene. 7.204674 TT = 4:54:43 (JD 2454472.704674) Epoca 2008 Ene. 27.0 TT = JDT 2454492.5 M 7.04663 (2000.0) P Q n 0.35597452 Peri. 334.26923 -0.18162151 -0.98016800 a 1.97177234 Nodo 126.09639 0.91831869 -0.19788818 e 0.5185941 Incl. 5.63021 0.35171635 0.01053354 P 2.77 H 20.2 G 0.15 q 0.94922269 Q 2.99432199 Perihelio 2008 Ene. 7.551848 TT = 13:14:39 (JD 2454473.051848) Epoca 2008 Ene. 31.0 TT = JDT 2454496.5 M 8.22677 (2000.0) P Q n 0.35084954 Peri. 334.74329 -0.18894470 -0.97890539 a 1.99092745 Nodo 126.05464 0.91649033 -0.20421832 e 0.5227282 Incl. 5.51829 0.35262638 0.00625343 P 2.81 H 20.2 G 0.15 q 0.95021343 Q 3.03164146 ELEMENTOS HIPERBOLICOS GEOCENTRICOS Perigeo 2008 Ene. 28.540015 TT = 12:57:37 (JD 2454494.040015) Epoca 2008 Ene. 29.0 TT = JDT 2454494.5 Find_Orb q 727722.398km (2000.0) P Q Peri. 63.29124 0.32882776 0.91198823 Nodo 15.74582 0.12841203 0.21410644 e 146.2221470 Incl. 64.65722 0.93561886 -0.34990839 A partir de 41 observaciones 2007 Oct. 11-14; RMS error 0.687 arcsec. EFEMERIDES DE LA APROXIMACION E 0.0, N 40.0 Fecha (UT) HH A.R. (2000,0) DEC. DELTA r ELON. MAG. ---- -- -- -- ------------ ------------ ------ ------ ----- --- 2008 01 27 00 01 10 00.739 +03 54 50.51 .00933 0.9817 71.4 14.1 2008 01 27 02 01 13 17.136 +05 28 14.78 .00891 0.9820 72.6 13.9 2008 01 27 04 01 17 06.446 +07 11 14.22 .00849 0.9823 74.0 13.7 2008 01 27 07 01 21 22.386 +09 05 33.42 .00806 0.9826 75.6 13.5 2008 01 27 09 01 25 57.108 +11 13 02.74 .00764 0.9830 77.3 13.3 2008 01 27 12 01 30 45.409 +13 35 20.36 .00723 0.9833 79.2 13.1 2008 01 27 14 01 35 48.859 +16 13 35.76 .00684 0.9836 81.3 12.9 Km. 2008 01 27 16 01 41 18.596 +19 08 23.06 969115 0.9839 83.5 12.7 2008 01 27 19 01 47 35.657 +22 19 50.56 919838 0.9843 85.9 12.5 2008 01 27 21 01 55 08.530 +25 48 03.13 875889 0.9846 88.7 12.2 2008 01 28 00 02 04 28.935 +29 33 20.69 837149 0.9849 91.9 12.0 2008 01 28 02 02 16 07.880 +33 36 09.18 803416 0.9853 95.5 11.8 2008 01 28 04 02 30 34.085 +37 56 08.22 774757 0.9856 99.4 11.6 2008 01 28 07 02 48 15.626 +42 30 39.84 751686 0.9859 103.8 11.3 2008 01 28 09 03 09 43.943 +47 13 07.16 735118 0.9863 108.2 11.1 2008 01 28 12 03 35 37.387 +51 51 51.71 726083 0.9866 112.7 11.0 2008 01 28 14 04 06 38.824 +56 10 40.40 725371 0.9870 116.9 10.8 2008 01 28 16 04 43 18.829 +59 51 05.55 733275 0.9873 120.8 10.8 2008 01 28 19 05 25 18.801 +62 36 19.32 749556 0.9876 124.3 10.7 2008 01 28 21 06 10 50.295 +64 15 49.32 773610 0.9880 127.4 10.7 2008 01 29 00 06 56 39.888 +64 48 53.78 804691 0.9883 130.1 10.7 2008 01 29 02 07 39 25.945 +64 24 50.76 842053 0.9887 132.5 10.7 2008 01 29 04 08 17 03.295 +63 19 04.61 884968 0.9890 134.6 10.8 2008 01 29 07 08 49 00.339 +61 47 56.47 932656 0.9894 136.3 10.8 2008 01 29 09 09 15 42.113 +60 05 13.94 984249 0.9897 137.6 10.9 U.A. 2008 01 29 12 09 37 50.837 +58 20 49.18 .00694 0.9901 138.6 11.0 2008 01 29 14 09 56 05.980 +56 40 36.27 .00732 0.9904 139.1 11.1 2008 01 29 16 10 11 00.135 +55 07 06.63 .00771 0.9908 139.5 11.2 2008 01 29 19 10 23 01.999 +53 40 23.17 .00811 0.9911 139.7 11.3 2008 01 29 21 10 32 40.458 +52 19 03.86 .00852 0.9915 139.8 11.4 2008 01 30 00 10 40 26.590 +51 01 25.80 .00894 0.9919 140.0 11.5 2008 01 30 02 10 46 52.456 +49 46 17.61 .00938 0.9922 140.1 11.6 2008 01 30 04 10 52 27.363 +48 33 27.84 .00983 0.9926 140.3 11.7 2008 01 30 07 10 57 33.556 +47 23 43.21 0.0103 0.9929 140.4 11.8 2008 01 30 09 11 02 23.487 +46 18 22.33 0.0108 0.9933 140.4 11.9 2008 01 30 12 11 06 59.828 +45 18 39.39 0.0112 0.9937 140.3 12.0 2008 01 30 14 11 11 18.020 +44 25 13.29 0.0117 0.9940 140.2 12.1 2008 01 30 16 11 15 10.334 +43 37 51.96 0.0122 0.9944 140.0 12.2 2008 01 30 19 11 18 30.126 +42 55 34.85 0.0126 0.9948 139.8 12.3 2008 01 30 21 11 21 15.174 +42 16 50.78 0.0131 0.9951 139.7 12.4 2008 01 31 00 11 23 29.168 +41 40 05.25 0.0136 0.9955 139.6 12.4 2008 01 31 02 11 25 20.950 +41 04 08.12 0.0141 0.9959 139.6 12.5 2008 01 31 04 11 27 01.777 +40 28 31.87 0.0145 0.9963 139.6 12.6 2008 01 31 07 11 28 41.726 +39 53 33.68 0.0150 0.9966 139.6 12.7 2008 01 31 09 11 30 26.672 +39 20 01.30 0.0155 0.9970 139.6 12.7 FEMERIDES DE SEGUIMIENTO FECHA (UT) A.R. DEC. DELTA r ELON. MAG. ---- -- -- ------------ ------------ ------ ------ ----- --- 2007 10 15 00 37 57.483 -15 52 47.34 0.4011 1.3690 153.9 19.9 2007 10 16 00 36 28.598 -16 15 13.12 0.3965 1.3617 152.7 19.9 2007 10 17 00 34 58.643 -16 37 27.71 0.3921 1.3543 151.5 19.9 2007 10 18 00 33 27.784 -16 59 29.10 0.3878 1.3470 150.2 19.9 2007 10 19 00 31 56.189 -17 21 15.32 0.3836 1.3397 149.0 19.8 2007 10 20 00 30 24.029 -17 42 44.47 0.3795 1.3323 147.7 19.8 2007 10 21 00 28 51.476 -18 03 54.73 0.3756 1.3250 146.4 19.8 2007 10 22 00 27 18.701 -18 24 44.37 0.3718 1.3177 145.1 19.8 2007 10 23 00 25 45.878 -18 45 11.76 0.3682 1.3105 143.8 19.8 2007 10 24 00 24 13.173 -19 05 15.37 0.3646 1.3032 142.5 19.8 2007 10 25 00 22 40.754 -19 24 53.75 0.3611 1.2960 141.2 19.8 2007 10 26 00 21 08.784 -19 44 05.54 0.3578 1.2888 139.9 19.8 2007 10 27 00 19 37.425 -20 02 49.45 0.3545 1.2816 138.6 19.8 2007 10 28 00 18 06.840 -20 21 04.26 0.3514 1.2744 137.3 19.8 2007 10 29 00 16 37.191 -20 38 48.77 0.3483 1.2672 136.0 19.8 2007 10 30 00 15 08.645 -20 56 01.88 0.3453 1.2601 134.7 19.8 2007 10 31 00 13 41.368 -21 12 42.52 0.3424 1.2530 133.3 19.8 2007 11 01 00 12 15.527 -21 28 49.74 0.3396 1.2459 132.0 19.8 2007 11 02 00 10 51.290 -21 44 22.67 0.3368 1.2389 130.8 19.8 2007 11 03 00 09 28.821 -21 59 20.58 0.3341 1.2319 129.5 19.8 2007 11 04 00 08 08.280 -22 13 42.82 0.3314 1.2249 128.2 19.8 2007 11 05 00 06 49.821 -22 27 28.90 0.3288 1.2180 126.9 19.8 2007 11 06 00 05 33.593 -22 40 38.44 0.3263 1.2110 125.7 19.8 2007 11 07 00 04 19.738 -22 53 11.19 0.3238 1.2042 124.4 19.8 2007 11 08 00 03 08.388 -23 05 07.02 0.3213 1.1973 123.2 19.8 2007 11 09 00 01 59.666 -23 16 25.92 0.3188 1.1906 121.9 19.8 2007 11 10 00 00 53.688 -23 27 07.99 0.3164 1.1838 120.7 19.8 2007 11 11 23 59 50.558 -23 37 13.46 0.3140 1.1771 119.5 19.8 2007 11 12 23 58 50.368 -23 46 42.65 0.3116 1.1705 118.3 19.8 2007 11 13 23 57 53.201 -23 55 35.99 0.3092 1.1638 117.2 19.8 2007 11 14 23 56 59.128 -24 03 53.99 0.3068 1.1573 116.0 19.8 2007 11 15 23 56 08.207 -24 11 37.27 0.3043 1.1508 114.8 19.8 2007 11 16 23 55 20.486 -24 18 46.51 0.3019 1.1444 113.7 19.8 2007 11 17 23 54 35.999 -24 25 22.47 0.2995 1.1380 112.6 19.8 2007 11 18 23 53 54.770 -24 31 25.98 0.2971 1.1317 111.5 19.8 2007 11 19 23 53 16.808 -24 36 57.91 0.2946 1.1254 110.4 19.8 2007 11 20 23 52 42.113 -24 41 59.19 0.2921 1.1192 109.3 19.8 2007 11 21 23 52 10.671 -24 46 30.77 0.2896 1.1131 108.2 19.8 2007 11 22 23 51 42.459 -24 50 33.61 0.2870 1.1070 107.2 19.8 2007 11 23 23 51 17.444 -24 54 08.64 0.2844 1.1010 106.1 19.8 2007 11 24 23 50 55.589 -24 57 16.78 0.2818 1.0951 105.1 19.8 2007 11 25 23 50 36.850 -24 59 58.88 0.2791 1.0893 104.1 19.8 2007 11 26 23 50 21.185 -25 02 15.74 0.2764 1.0835 103.1 19.8 2007 11 27 23 50 08.551 -25 04 08.08 0.2736 1.0779 102.1 19.8 2007 11 28 23 49 58.908 -25 05 36.60 0.2708 1.0723 101.1 19.8 2007 11 29 23 49 52.214 -25 06 41.96 0.2679 1.0668 100.1 19.8 2007 11 30 23 49 48.429 -25 07 24.82 0.2650 1.0614 99.2 19.8 2007 12 01 23 49 47.507 -25 07 45.85 0.2621 1.0561 98.2 19.8 2007 12 02 23 49 49.405 -25 07 45.69 0.2590 1.0508 97.3 19.8 2007 12 03 23 49 54.072 -25 07 25.02 0.2559 1.0457 96.4 19.8 2007 12 04 23 50 01.455 -25 06 44.52 0.2528 1.0407 95.5 19.8 2007 12 05 23 50 11.498 -25 05 44.87 0.2496 1.0358 94.6 19.8 2007 12 06 23 50 24.141 -25 04 26.77 0.2463 1.0310 93.7 19.8 2007 12 07 23 50 39.318 -25 02 50.91 0.2430 1.0263 92.8 19.8 2007 12 08 23 50 56.962 -25 00 58.00 0.2396 1.0217 91.9 19.8 2007 12 09 23 51 17.001 -24 58 48.72 0.2361 1.0173 91.1 19.8 2007 12 10 23 51 39.359 -24 56 23.80 0.2326 1.0129 90.2 19.7 2007 12 11 23 52 03.956 -24 53 43.96 0.2290 1.0087 89.4 19.7 2007 12 12 23 52 30.708 -24 50 49.91 0.2253 1.0046 88.6 19.7 2007 12 13 23 52 59.524 -24 47 42.37 0.2216 1.0006 87.7 19.7 2007 12 14 23 53 30.310 -24 44 22.08 0.2178 0.9968 86.9 19.7 2007 12 15 23 54 02.966 -24 40 49.76 0.2140 0.9931 86.1 19.7 2007 12 16 23 54 37.388 -24 37 06.11 0.2100 0.9895 85.3 19.7 2007 12 17 23 55 13.465 -24 33 11.83 0.2060 0.9860 84.5 19.7 2007 12 18 23 55 51.083 -24 29 07.58 0.2020 0.9827 83.7 19.7 2007 12 19 23 56 30.121 -24 24 53.97 0.1979 0.9796 83.0 19.6 2007 12 20 23 57 10.457 -24 20 31.56 0.1937 0.9766 82.2 19.6 2007 12 21 23 57 51.967 -24 16 00.80 0.1895 0.9737 81.4 19.6 2007 12 22 23 58 34.528 -24 11 22.04 0.1852 0.9710 80.7 19.6 2007 12 23 23 59 18.021 -24 06 35.46 0.1808 0.9684 79.9 19.6 2007 12 24 00 00 02.336 -24 01 41.09 0.1764 0.9660 79.1 19.6 2007 12 25 00 00 47.370 -23 56 38.82 0.1720 0.9638 78.4 19.6 2007 12 26 00 01 33.034 -23 51 28.33 0.1675 0.9617 77.6 19.5 2007 12 27 00 02 19.249 -23 46 09.18 0.1629 0.9597 76.9 19.5 2007 12 28 00 03 05.947 -23 40 40.80 0.1583 0.9579 76.2 19.5 2007 12 29 00 03 53.068 -23 35 02.44 0.1537 0.9563 75.4 19.5 2007 12 30 00 04 40.563 -23 29 13.24 0.1490 0.9549 74.7 19.4 2007 12 31 00 05 28.390 -23 23 12.17 0.1443 0.9536 73.9 19.4 2008 01 01 00 06 16.514 -23 16 57.99 0.1395 0.9525 73.2 19.4 2008 01 02 00 07 04.915 -23 10 29.26 0.1347 0.9515 72.5 19.4 2008 01 03 00 07 53.578 -23 03 44.26 0.1299 0.9507 71.8 19.3 2008 01 04 00 08 42.508 -22 56 40.92 0.1250 0.9501 71.0 19.3 2008 01 05 00 09 31.721 -22 49 16.83 0.1201 0.9496 70.3 19.3 2008 01 06 00 10 21.256 -22 41 29.07 0.1152 0.9494 69.6 19.2 2008 01 07 00 11 11.171 -22 33 14.17 0.1102 0.9492 68.9 19.2 2008 01 08 00 12 01.552 -22 24 27.95 0.1052 0.9493 68.2 19.1 2008 01 09 00 12 52.517 -22 15 05.37 0.1002 0.9495 67.5 19.1 2008 01 10 00 13 44.222 -22 05 00.27 0.0952 0.9499 66.8 19.0 2008 01 11 00 14 36.873 -21 54 05.07 0.0902 0.9505 66.1 19.0 2008 01 12 00 15 30.737 -21 42 10.35 0.0851 0.9512 65.4 18.9 2008 01 13 00 16 26.162 -21 29 04.19 0.0801 0.9521 64.7 18.8 2008 01 14 00 17 23.607 -21 14 31.35 0.0750 0.9532 64.1 18.8 2008 01 15 00 18 23.681 -20 58 11.99 0.0699 0.9544 63.4 18.7 2008 01 16 00 19 27.204 -20 39 39.83 0.0648 0.9558 62.8 18.6 2008 01 17 00 20 35.298 -20 18 19.38 0.0597 0.9574 62.2 18.5 2008 01 18 00 21 49.535 -19 53 21.57 0.0546 0.9591 61.7 18.3 2008 01 19 00 23 12.158 -19 23 36.69 0.0495 0.9610 61.2 18.2 2008 01 20 00 24 46.473 -18 47 22.53 0.0443 0.9630 60.7 18.0 2008 01 21 00 26 37.509 -18 02 03.46 0.0392 0.9652 60.4 17.8 2008 01 22 00 28 53.265 -17 03 30.57 0.0341 0.9676 60.2 17.5 2008 01 23 00 31 47.185 -15 44 41.07 0.0290 0.9701 60.2 17.2 2008 01 24 00 35 43.603 -13 52 37.39 0.0240 0.9728 60.7 16.8 2008 01 25 00 41 31.344 -11 00 48.33 0.0189 0.9756 61.8 16.2 2008 01 26 00 51 04.319 -06 06 15.93 0.0140 0.9786 64.5 15.4 2008 01 27 01 10 00.739 +03 54 50.51 .00933 0.9817 71.4 14.1 2008 01 28 02 04 28.935 +29 33 20.69 837149 0.9849 91.9 12.0 2008 01 29 06 56 39.888 +64 48 53.78 804691 0.9883 130.1 10.7 2008 01 30 10 40 26.590 +51 01 25.79 .00894 0.9919 140.0 11.5 2008 01 31 11 23 29.169 +41 40 05.25 0.0136 0.9955 139.6 12.4 2008 02 01 11 39 40.018 +36 52 24.36 0.0185 0.9993 139.0 13.1 2008 02 02 11 47 58.543 +34 02 52.92 0.0235 1.0032 138.7 13.7 2008 02 03 11 52 56.738 +32 12 02.06 0.0286 1.0073 138.8 14.1 2008 02 04 11 56 11.075 +30 54 05.95 0.0337 1.0114 139.1 14.4 2008 02 05 11 58 24.264 +29 56 20.46 0.0388 1.0157 139.5 14.7 2008 02 06 11 59 58.118 +29 11 47.36 0.0440 1.0201 140.0 15.0 2008 02 07 12 01 04.957 +28 36 19.20 0.0492 1.0247 140.6 15.2 2008 02 08 12 01 52.287 +28 07 20.35 0.0543 1.0293 141.3 15.4