2007 XB23, SE APROXIMÓ A 99.000 Kms. de la Tierra
Desde el observatorio (E12) Siding Spring Survey (S31.2735 E149.0642), R. H. McNaught, S. Larson,
y su equipo; utilizando la cámara de 0.5-m Uppsala Schmidt + CCD., descubrieron un nuevo asteroide
en aproximación muy cercana a la Tierra. Se trata de “2007XB23”, un astro de unos 20 metros de diámetro.
El objeto Pasó a menos de 100.000 Kms. del centro de la Tierra, el dia 13 a las 4 horas TU.
El astro presenta una órbita muy semejante a la de nuestro planeta. No se descarta un origen astronáutico
Figura en la escala de riesgos de choque en futuras aproximaciones, si bien dada su pequeña masa no se le
considera peligroso.
"Pseudo-MPEC"
for 2007 XB23
Created Mon Dec 17
11:12:08 2007 using Find_Orb
Astrometry
Observing stations
Orbital elements
Residuals
Ephemeris
Astrometry:
K07X23B 2007 12 14.56193 05 21 16.160-59 32 19.00 17.8 R E12
K07X23B 2007 12 14.56425 05 21 17.280-59 33 13.40 17.5 R E12
K07X23B 2007 12 14.57116 05 21 20.560-59 35 50.20 17.7 R E12
K07X23B 2007 12 14.57345 05 21 21.640-59 36 41.80 17.5 R E12
K07X23B 2007 12 14.58042 05 21 24.920-59 39 13.70 17.4 R E12
K07X23B 2007 12 14.58263 05 21 25.920-59 40 01.50 17.7 R E12
K07X23B 2007 12 14.58931 05 21 29.040-59 42 21.90 17.7 R E12
K07X23B 2007 12 14.59163 05 21 30.120-59 43 09.70 17.5 R E12
K07X23B 2007 12 15.47619 05 44 17.280-62 49 23.20 18.3 R E12
K07X23B 2007 12 15.47927 05 44 17.830-62 50 02.10 18.2 R E12
Station data:
(E12) Siding Spring Survey (S31.2735 E149.0642). Observers R. H. McNaught,
S. Larson, et.al. Measurer R. H. McNaught. 0.5-m Uppsala Schmidt + CCD.
Elementos hiperbólicos geocéntricos:
2007 XB23
Perigee 2007 Dec 13.167701 TT = 4:01:29 (JD 2454447.667701)
Epoch 2007 Dec 15.0 TT = JDT 2454449.5 Find_Orb
q 99536.6545km (2000.0) P Q
H 27.0 G 0.15 Peri. 156.01798 0.68555356 -0.06248209
Node 229.32498 0.41014029 -0.79001475
e 6.2070086 Incl. 73.01463 0.60149916 0.60989562
From 10 observations 2007 Dec. 14-15 (22.0 hr); RMS error 0.414 arcseconds
Residuals in arcseconds:
071214 E12 .03+ .29+ 071214 E12 .11+ .31+ 071215 E12 .57- .56+
071214 E12 .04+ .26- 071214 E12 .11- .11- 071215 E12 .57+ .56-
071214 E12 .04- .24+ 071214 E12 .00 .10-
071214 E12 .03- .26- 071214 E12 .00 .11-
Ephemerides (For E 0.0000, N 40.0000):
Date (UT) HH RA Dec delta r elong mag
---- -- -- -- ------------ ------------ ------ ------ ----- ---
2007 12 12 00 17 52 18.681 +63 25 10.24 495333 0.9845 86.8 17.9
2007 12 12 01 17 56 27.523 +63 44 13.42 478690 0.9845 87.2 17.8
2007 12 12 02 18 00 58.483 +64 06 22.53 461926 0.9845 87.6 17.7
2007 12 12 03 18 05 50.100 +64 31 48.28 445060 0.9846 88.1 17.6
2007 12 12 04 18 11 01.155 +65 00 35.75 428115 0.9846 88.7 17.5
2007 12 12 05 18 16 30.963 +65 32 44.08 411121 0.9846 89.4 17.4
2007 12 12 06 18 22 19.722 +66 08 06.33 394112 0.9846 90.1 17.3
2007 12 12 07 18 28 28.948 +66 46 29.51 377125 0.9846 90.9 17.1
2007 12 12 08 18 35 02.006 +67 27 34.76 360193 0.9847 91.7 17.0
2007 12 12 09 18 42 04.783 +68 10 57.53 343349 0.9847 92.6 16.9
2007 12 12 10 18 49 46.535 +68 56 07.74 326621 0.9847 93.6 16.7
2007 12 12 11 18 58 20.930 +69 42 29.53 310031 0.9847 94.6 16.6
2007 12 12 12 19 08 07.326 +70 29 19.93 293595 0.9847 95.6 16.4
2007 12 12 13 19 19 32.246 +71 15 45.69 277326 0.9848 96.7 16.2
2007 12 12 14 19 33 10.919 +72 00 36.43 261229 0.9848 97.9 16.1
2007 12 12 15 19 49 48.382 +72 42 11.75 245313 0.9848 99.2 15.9
2007 12 12 16 20 10 18.882 +73 17 59.20 229585 0.9848 100.5 15.7
2007 12 12 17 20 35 40.750 +73 43 59.80 214064 0.9849 102.1 15.5
2007 12 12 18 21 06 41.868 +73 54 02.13 198780 0.9849 103.8 15.3
2007 12 12 19 21 43 31.372 +73 38 57.05 183787 0.9849 105.8 15.0
2007 12 12 20 22 25 04.120 +72 46 24.75 169173 0.9849 108.2 14.8
2007 12 12 21 23 08 47.939 +71 01 49.15 155074 0.9849 111.0 14.5
2007 12 12 22 23 51 27.026 +68 10 08.88 141690 0.9850 114.4 14.2
2007 12 12 23 00 30 21.045 +63 57 37.98 129309 0.9850 118.5 13.9
2007 12 13 00 01 04 13.159 +58 12 56.52 118324 0.9850 123.3 13.5
2007 12 13 01 01 33 01.213 +50 49 31.06 109242 0.9850 128.7 13.2
2007 12 13 02 01 57 23.307 +41 50 56.38 102644 0.9850 134.3 12.9
2007 12 13 03 02 18 09.245 +31 37 52.98 99082 0.9850 139.2 12.7
2007 12 13 04 02 36 05.701 +20 49 54.58 98901 0.9850 142.2 12.6
2007 12 13 05 02 51 50.928 +10 15 20.23 102089 0.9851 142.5 12.7
2007 12 13 06 03 05 54.000 +00 33 55.73 108286 0.9851 140.5 12.9
2007 12 13 07 03 18 35.805 -07 53 45.38 116926 0.9851 137.1 13.1
2007 12 13 08 03 30 10.582 -15 04 51.77 127421 0.9851 133.3 13.4
2007 12 13 09 03 40 47.542 -21 06 47.23 139259 0.9851 129.6 13.7
2007 12 13 10 03 50 32.314 -26 10 33.60 152048 0.9851 126.1 14.0
2007 12 13 11 03 59 28.108 -30 27 07.44 165501 0.9851 123.0 14.3
2007 12 13 12 04 07 36.606 -34 05 50.63 179419 0.9850 120.2 14.5
2007 12 13 13 04 14 58.642 -37 14 11.30 193669 0.9850 117.7 14.8
2007 12 13 14 04 21 34.727 -39 57 53.75 208167 0.9850 115.4 15.0
2007 12 13 15 04 27 25.468 -42 21 16.87 222866 0.9850 113.3 15.2
2007 12 13 16 04 32 31.905 -44 27 33.00 237744 0.9850 111.5 15.4
2007 12 13 17 04 36 55.779 -46 19 04.47 252795 0.9850 109.8 15.6
2007 12 13 18 04 40 39.726 -47 57 37.33 268026 0.9850 108.3 15.8
2007 12 13 19 04 43 47.369 -49 24 32.41 283452 0.9850 106.9 15.9
2007 12 13 20 04 46 23.311 -50 40 54.25 299087 0.9850 105.7 16.1
2007 12 13 21 04 48 33.006 -51 47 37.91 314943 0.9850 104.7 16.2
2007 12 13 22 04 50 22.518 -52 45 34.12 331029 0.9850 103.8 16.4
2007 12 13 23 04 51 58.193 -53 35 32.69 347346 0.9850 103.0 16.5
2007 12 14 00 04 53 26.274 -54 18 24.46 363886 0.9850 102.3 16.6
2007 12 14 01 04 54 52.517 -54 55 01.98 380634 0.9850 101.7 16.7
2007 12 14 02 04 56 21.857 -55 26 19.16 397564 0.9850 101.2 16.9
2007 12 14 03 04 57 58.157 -55 53 10.23 414645 0.9849 100.8 17.0
2007 12 14 04 04 59 44.057 -56 16 28.29 431838 0.9849 100.4 17.1
2007 12 14 05 05 01 40.942 -56 37 03.79 449100 0.9849 100.1 17.2
2007 12 14 06 05 03 48.994 -56 55 43.08 466387 0.9849 99.8 17.3
2007 12 14 07 05 06 07.320 -57 13 07.21 483655 0.9849 99.5 17.3
2007 12 14 08 05 08 34.128 -57 29 51.02 500861 0.9849 99.2 17.4
2007 12 14 09 05 11 06.920 -57 46 22.59 517971 0.9849 99.0 17.5
2007 12 14 10 05 13 42.709 -58 03 02.94 534955 0.9849 98.7 17.6
2007 12 14 11 05 16 18.212 -58 20 06.01 551792 0.9849 98.4 17.7
2007 12 14 12 05 18 50.057 -58 37 38.93 568471 0.9849 98.2 17.7
2007 12 14 13 05 21 14.961 -58 55 42.37 584993 0.9849 97.9 17.8
2007 12 14 14 05 23 29.907 -59 14 11.22 601367 0.9849 97.6 17.9
2007 12 14 15 05 25 32.309 -59 32 55.37 617611 0.9849 97.2 18.0
2007 12 14 16 05 27 20.152 -59 51 40.66 633754 0.9848 96.9 18.0
2007 12 14 17 05 28 52.120 -60 10 10.07 649829 0.9848 96.6 18.1
2007 12 14 18 05 30 07.692 -60 28 04.96 665874 0.9848 96.3 18.2
2007 12 14 19 05 31 07.190 -60 45 06.49 681930 0.9848 96.0 18.2
2007 12 14 20 05 31 51.785 -61 00 57.01 698035 0.9848 95.8 18.3
2007 12 14 21 05 32 23.442 -61 15 21.44 714225 0.9848 95.5 18.3
2007 12 14 22 05 32 44.794 -61 28 08.42 730531 0.9848 95.3 18.4
2007 12 14 23 05 32 58.966 -61 39 11.21 746974 0.9848 95.1 18.4
2007 12 15 00 05 33 09.354 -61 48 28.26 763567 0.9848 95.0 18.5
2007 12 15 01 05 33 19.375 -61 56 03.29 780315 0.9848 94.8 18.5
2007 12 15 02 05 33 32.224 -62 02 05.02 797209 0.9848 94.7 18.6
2007 12 15 03 05 33 50.649 -62 06 46.45 814233 0.9848 94.6 18.6
2007 12 15 04 05 34 16.783 -62 10 23.86 831361 0.9848 94.6 18.7
2007 12 15 05 05 34 52.031 -62 13 15.68 848562 0.9848 94.5 18.7
2007 12 15 06 05 35 37.019 -62 15 41.15 865798 0.9848 94.5 18.8
2007 12 15 07 05 36 31.604 -62 17 59.16 883030 0.9847 94.4 18.8
2007 12 15 08 05 37 34.940 -62 20 27.08 900221 0.9847 94.4 18.9
2007 12 15 09 05 38 45.573 -62 23 19.86 917333 0.9847 94.3 18.9
2007 12 15 10 05 40 01.571 -62 26 49.31 934338 0.9847 94.3 19.0
2007 12 15 11 05 41 20.666 -62 31 03.57 951211 0.9847 94.2 19.0
2007 12 15 12 05 42 40.400 -62 36 06.86 967938 0.9847 94.1 19.0
2007 12 15 13 05 43 58.280 -62 41 59.42 984514 0.9847 94.0 19.1
2007 12 15 14 05 45 11.918 -62 48 37.68 .00669 0.9847 93.9 19.1
2007 12 15 15 05 46 19.172 -62 55 54.56 .00680 0.9847 93.7 19.2
2007 12 15 15 05 47 18.268 -63 03 40.06 .00691 0.9847 93.6 19.2
2007 12 15 16 05 48 07.909 -63 11 41.89 .00702 0.9847 93.5 19.2
2007 12 15 17 05 48 47.352 -63 19 46.33 .00712 0.9847 93.3 19.3
2007 12 15 18 05 49 16.467 -63 27 39.11 .00723 0.9847 93.2 19.3
2007 12 15 19 05 49 35.749 -63 35 06.39 .00734 0.9847 93.1 19.4
2007 12 15 20 05 49 46.288 -63 41 55.70 .00745 0.9846 93.0 19.4
2007 12 15 21 05 49 49.703 -63 47 56.80 .00755 0.9846 92.8 19.4
2007 12 15 22 05 49 48.027 -63 53 02.41 .00766 0.9846 92.8 19.5
2007 12 15 23 05 49 43.561 -63 57 08.65 .00777 0.9846 92.7 19.5
2007 12 16 00 05 49 38.702 -64 00 15.35 .00789 0.9846 92.6 19.5
2007 12 16 01 05 49 35.771 -64 02 25.92 .00800 0.9846 92.6 19.6
2007 12 16 02 05 49 36.848 -64 03 47.10 .00811 0.9846 92.6 19.6
2007 12 16 03 05 49 43.625 -64 04 28.35 .00823 0.9846 92.6 19.6
2007 12 16 04 05 49 57.311 -64 04 41.13 .00834 0.9846 92.6 19.6
2007 12 16 05 05 50 18.560 -64 04 38.08 .00845 0.9846 92.6 19.7
2007 12 16 06 05 50 47.462 -64 04 32.09 .00857 0.9846 92.6 19.7
2007 12 16 07 05 51 23.558 -64 04 35.50 .00868 0.9846 92.6 19.7
2007 12 16 08 05 52 05.900 -64 04 59.30 .00880 0.9846 92.5 19.8
2007 12 16 09 05 52 53.131 -64 05 52.51 .00891 0.9846 92.5 19.8
2007 12 16 10 05 53 43.592 -64 07 21.68 .00902 0.9846 92.5 19.8
2007 12 16 11 05 54 35.430 -64 09 30.62 .00913 0.9846 92.4 19.8
2007 12 16 12 05 55 26.716 -64 12 20.18 .00925 0.9845 92.4 19.9
2007 12 16 13 05 56 15.569 -64 15 48.36 .00935 0.9845 92.3 19.9
2007 12 16 14 05 57 00.264 -64 19 50.43 .00946 0.9845 92.2 19.9
2007 12 16 15 05 57 39.340 -64 24 19.35 .00957 0.9845 92.2 20.0
2007 12 16 16 05 58 11.686 -64 29 06.18 .00968 0.9845 92.1 20.0
2007 12 16 17 05 58 36.617 -64 34 00.71 .00979 0.9845 92.0 20.0
2007 12 16 18 05 58 53.913 -64 38 52.15 .00989 0.9845 91.9 20.0
2007 12 16 19 05 59 03.844 -64 43 29.85 0.0100 0.9845 91.8 20.1
2007 12 16 20 05 59 07.150 -64 47 43.99 0.0101 0.9845 91.8 20.1
2007 12 16 21 05 59 04.991 -64 51 26.30 0.0102 0.9845 91.7 20.1
2007 12 16 22 05 58 58.871 -64 54 30.59 0.0103 0.9845 91.7 20.1
2007 12 16 23 05 58 50.523 -64 56 53.19 0.0104 0.9845 91.6 20.2
2007 12 17 00 05 58 41.788 -64 58 33.19 0.0105 0.9845 91.6 20.2
2007 12 17 01 05 58 34.476 -64 59 32.40 0.0107 0.9845 91.6 20.2
2007 12 17 02 05 58 30.243 -64 59 55.27 0.0108 0.9845 91.6 20.2
2007 12 17 03 05 58 30.467 -64 59 48.42 0.0109 0.9845 91.6 20.3
2007 12 17 04 05 58 36.167 -64 59 20.20 0.0110 0.9845 91.6 20.3
2007 12 17 05 05 58 47.942 -64 58 40.04 0.0111 0.9844 91.6 20.3
2007 12 17 06 05 59 05.944 -64 57 57.76 0.0112 0.9844 91.6 20.3
2007 12 17 07 05 59 29.886 -64 57 22.94 0.0113 0.9844 91.6 20.3
2007 12 17 08 05 59 59.077 -64 57 04.28 0.0115 0.9844 91.6 20.4
2007 12 17 09 06 00 32.485 -64 57 09.08 0.0116 0.9844 91.6 20.4
2007 12 17 10 06 01 08.807 -64 57 42.77 0.0117 0.9844 91.6 20.4
2007 12 17 11 06 01 46.569 -64 58 48.67 0.0118 0.9844 91.6 20.4
2007 12 17 12 06 02 24.213 -65 00 27.81 0.0119 0.9844 91.5 20.5
2007 12 17 13 06 03 00.201 -65 02 38.91 0.0120 0.9844 91.5 20.5
2007 12 17 14 06 03 33.109 -65 05 18.49 0.0121 0.9844 91.4 20.5
2007 12 17 15 06 04 01.715 -65 08 21.17 0.0122 0.9844 91.4 20.5
2007 12 17 16 06 04 25.078 -65 11 39.98 0.0123 0.9844 91.3 20.5
2007 12 17 17 06 04 42.594 -65 15 06.87 0.0124 0.9844 91.3 20.6
2007 12 17 18 06 04 54.040 -65 18 33.23 0.0125 0.9844 91.2 20.6
2007 12 17 19 06 04 59.591 -65 21 50.48 0.0127 0.9844 91.1 20.6
2007 12 17 20 06 04 59.807 -65 24 50.64 0.0128 0.9844 91.1 20.6
2007 12 17 21 06 04 55.596 -65 27 26.90 0.0129 0.9844 91.1 20.6
2007 12 17 22 06 04 48.153 -65 29 34.06 0.0130 0.9844 91.0 20.7
2007 12 17 23 06 04 38.870 -65 31 08.90 0.0131 0.9844 91.0 20.7
2007 12 18 00 06 04 29.239 -65 32 10.36 0.0132 0.9843 91.0 20.7
2007 12 18 01 06 04 20.743 -65 32 39.63 0.0133 0.9843 91.0 20.7
2007 12 18 02 06 04 14.747 -65 32 40.01 0.0134 0.9843 91.0 20.7
2007 12 18 03 06 04 12.407 -65 32 16.61 0.0135 0.9843 91.0 20.8
2007 12 18 04 06 04 14.591 -65 31 36.02 0.0137 0.9843 91.0 20.8
2007 12 18 05 06 04 21.828 -65 30 45.75 0.0138 0.9843 91.0 20.8
2007 12 18 06 06 04 34.282 -65 29 53.75 0.0139 0.9843 91.0 20.8
2007 12 18 07 06 04 51.751 -65 29 07.85 0.0140 0.9843 91.0 20.8
2007 12 18 08 06 05 13.692 -65 28 35.24 0.0141 0.9843 91.0 20.8
2007 12 18 09 06 05 39.269 -65 28 21.98 0.0142 0.9843 91.0 20.9
2007 12 18 10 06 06 07.414 -65 28 32.71 0.0143 0.9843 91.0 20.9
2007 12 18 11 06 06 36.901 -65 29 10.29 0.0144 0.9843 91.0 20.9
2007 12 18 12 06 07 06.427 -65 30 15.75 0.0146 0.9843 91.0 20.9
2007 12 18 13 06 07 34.696 -65 31 48.14 0.0147 0.9843 91.0 20.9
2007 12 18 14 06 08 00.502 -65 33 44.74 0.0148 0.9843 90.9 20.9
2007 12 18 15 06 08 22.802 -65 36 01.17 0.0149 0.9843 90.9 21.0
2007 12 18 16 06 08 40.788 -65 38 31.73 0.0150 0.9843 90.8 21.0
2007 12 18 17 06 08 53.934 -65 41 09.76 0.0151 0.9843 90.8 21.0
2007 12 18 18 06 09 02.034 -65 43 48.12 0.0152 0.9843 90.8 21.0
2007 12 18 19 06 09 05.216 -65 46 19.65 0.0153 0.9843 90.7 21.0
2007 12 18 20 06 09 03.937 -65 48 37.67 0.0154 0.9843 90.7 21.0
2007 12 18 21 06 08 58.945 -65 50 36.41 0.0155 0.9842 90.6 21.1
2007 12 18 22 06 08 51.236 -65 52 11.45 0.0156 0.9842 90.6 21.1
2007 12 18 23 06 08 41.976 -65 53 19.98 0.0157 0.9842 90.6 21.1
2007 12 19 00 06 08 32.419 -65 54 01.01 0.0158 0.9842 90.6 21.1
2007 12 19 01 06 08 23.818 -65 54 15.41 0.0160 0.9842 90.6 21.1
2007 12 19 02 06 08 17.334 -65 54 05.79 0.0161 0.9842 90.6 21.1
2007 12 19 03 06 08 13.956 -65 53 36.38 0.0162 0.9842 90.6 21.1
2007 12 19 04 06 08 14.434 -65 52 52.59 0.0163 0.9842 90.6 21.2
2007 12 19 05 06 08 19.235 -65 52 00.72 0.0164 0.9842 90.6 21.2
2007 12 19 06 06 08 28.513 -65 51 07.44 0.0165 0.9842 90.6 21.2
2007 12 19 07 06 08 42.114 -65 50 19.35 0.0166 0.9842 90.7 21.2
2007 12 19 08 06 08 59.589 -65 49 42.56 0.0167 0.9842 90.7 21.2
2007 12 19 09 06 09 20.232 -65 49 22.26 0.0169 0.9842 90.7 21.2
2007 12 19 10 06 09 43.134 -65 49 22.45 0.0170 0.9842 90.7 21.2
2007 12 19 11 06 10 07.248 -65 49 45.63 0.0171 0.9842 90.7 21.3
2007 12 19 12 06 10 31.451 -65 50 32.71 0.0172 0.9842 90.6 21.3
2007 12 19 13 06 10 54.628 -65 51 43.00 0.0173 0.9842 90.6 21.3
2007 12 19 14 06 11 15.733 -65 53 14.18 0.0174 0.9842 90.6 21.3
2007 12 19 15 06 11 33.863 -65 55 02.58 0.0175 0.9842 90.6 21.3
2007 12 19 16 06 11 48.313 -65 57 03.34 0.0176 0.9842 90.5 21.3
2007 12 19 17 06 11 58.624 -65 59 10.80 0.0177 0.9842 90.5 21.3
2007 12 19 18 06 12 04.611 -66 01 18.85 0.0178 0.9842 90.5 21.4
2007 12 19 19 06 12 06.380 -66 03 21.35 0.0179 0.9842 90.4 21.4
2007 12 19 20 06 12 04.317 -66 05 12.56 0.0181 0.9842 90.4 21.4
2007 12 19 21 06 11 59.067 -66 06 47.52 0.0182 0.9841 90.4 21.4
2007 12 19 22 06 11 51.483 -66 08 02.40 0.0183 0.9841 90.3 21.4
2007 12 19 23 06 11 42.572 -66 08 54.75 0.0184 0.9841 90.3 21.4
2007 12 20 00 06 11 33.416 -66 09 23.67 0.0185 0.9841 90.3 21.4
2007 12 20 01 06 11 25.100 -66 09 29.85 0.0186 0.9841 90.3 21.5
2007 12 20 02 06 11 18.631 -66 09 15.52 0.0187 0.9841 90.3 21.5
2007 12 20 03 06 11 14.871 -66 08 44.24 0.0188 0.9841 90.3 21.5
2007 12 20 04 06 11 14.477 -66 08 00.67 0.0189 0.9841 90.4 21.5
2007 12 20 05 06 11 17.860 -66 07 10.22 0.0190 0.9841 90.4 21.5
2007 12 20 06 06 11 25.163 -66 06 18.63 0.0192 0.9841 90.4 21.5