MPEC 2005-N72 : 2004 XW186, 2004 XX186, 2004 XY186, 2004 XZ186
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M.P.E.C. 2005-N72 Issued 2005 July 14, 14:25 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2004 XW186, 2004 XX186, 2004 XY186, 2004 XZ186
Observations:
K04XI6W* C2004 12 12.30201 00 10 04.08 +00 26 36.2 25 R EN072568
K04XI6W C2004 12 13.31117 00 10 03.88 +00 26 36.1 24.8 R EN072568
K04XI6W C2004 12 14.30574 00 10 03.72 +00 26 35.8 24.8 R EN072568
K04XI6X* C2004 12 12.30899 00 57 49.14 +04 19 46.1 EN072568
K04XI6X C2004 12 13.31892 00 57 47.85 +04 19 40.5 25.3 R EN072568
K04XI6X C2004 12 14.31295 00 57 46.65 +04 19 35.3 24.9 R EN072568
K04XI6Y* C2004 12 12.31346 01 00 54.37 +04 57 56.5 25.1 R EN072568
K04XI6Y C2004 12 13.32341 01 00 52.39 +04 57 55.6 24.9 R EN072568
K04XI6Y C2004 12 14.31742 01 00 50.72 +04 57 54.1 24.7 R EN072568
K04XI6Z* C2004 12 12.32569 02 56 03.41 +15 47 49.2 25.2 R EN072568
K04XI6Z C2004 12 13.33535 02 55 58.89 +15 47 27.0 25.2 R EN072568
K04XI6Z C2004 12 14.32892 02 55 54.46 +15 47 05.8 25.0 R EN072568
Observer details:
568 Mauna Kea. Observers S. S. Sheppard, D. C. Jewitt. Measurer S. S.
Sheppard. 8.3-m Subaru reflector + CCD.
Orbital elements:
Object H G Epoch M Peri. Node Incl. e a Arc C
K04XI6W 8.7 0.15 K04C1 359.965 288.534 75.217 0.623 0.04549 45.65714 2EX
K04XI6X 8.6 0.15 K04C1 0.000 282.619 93.418 1.732 0.0 46.90595 2EX
K04XI6Y 9.8 0.15 K04C1 359.956 356.142 21.029 21.216 0.13603 39.47281 2EX
K04XI6Z 10.0 0.15 K04C1 307.233 276.513 222.463 11.053 0.34529 39.64804 2EX
Ephemerides:
2004 XW186 a,e,i = 45.66, 0.05, 1 q = 43.580
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 07 09 00 22.22 +01 45.5 43.375 43.581 101.0 1.3 25.3
2005 07 19 00 22.13 +01 44.8 43.213 43.581 110.6 1.3 25.3
2005 07 29 00 21.90 +01 43.2 43.061 43.581 120.2 1.2 25.2
2005 08 08 00 21.55 +01 40.9 42.924 43.581 129.9 1.0 25.2
2005 08 18 00 21.09 +01 37.8 42.805 43.581 139.6 0.9 25.2
2005 08 28 00 20.54 +01 34.1 42.708 43.581 149.4 0.7 25.2
2005 09 07 00 19.91 +01 30.0 42.637 43.581 159.2 0.5 25.1
2005 09 17 00 19.23 +01 25.5 42.593 43.581 169.1 0.2 25.1
2005 09 27 00 18.52 +01 20.9 42.579 43.581 178.9 0.0 25.1
2005 10 07 00 17.80 +01 16.3 42.594 43.581 170.8 0.2 25.1
2005 10 17 00 17.11 +01 11.9 42.639 43.581 160.7 0.4 25.1
2005 10 27 00 16.47 +01 07.8 42.712 43.581 150.6 0.6 25.2
2005 11 06 00 15.91 +01 04.3 42.812 43.581 140.5 0.8 25.2
2005 11 16 00 15.44 +01 01.3 42.935 43.581 130.3 1.0 25.2
2005 11 26 00 15.08 +00 59.2 43.077 43.581 120.1 1.1 25.2
2005 12 06 00 14.85 +00 57.9 43.236 43.581 109.9 1.2 25.2
2005 12 16 00 14.77 +00 57.5 43.404 43.581 99.7 1.3 25.3
2005 12 26 00 14.83 +00 58.0 43.577 43.581 89.6 1.3 25.3
2006 01 05 00 15.03 +00 59.5 43.751 43.581 79.4 1.3 25.3
2006 01 15 00 15.38 +01 01.9 43.918 43.581 69.3 1.2 25.3
2006 01 25 00 15.87 +01 05.2 44.076 43.581 59.3 1.1 25.3
2006 02 04 00 16.47 +01 09.2 44.217 43.581 49.3 1.0 25.3
2006 02 14 00 17.18 +01 13.9 44.340 43.581 39.4 0.8 25.3
2004 XX186 a,e,i = 46.91, 0.00, 2
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 07 09 01 08.83 +05 29.2 46.915 46.906 88.9 1.2 25.5
2005 07 19 01 08.90 +05 29.3 46.747 46.906 98.4 1.2 25.5
2005 07 29 01 08.85 +05 28.6 46.583 46.906 107.9 1.2 25.5
2005 08 08 01 08.66 +05 27.1 46.428 46.906 117.6 1.1 25.5
2005 08 18 01 08.36 +05 24.9 46.286 46.906 127.2 1.0 25.4
2005 08 28 01 07.95 +05 22.1 46.162 46.906 137.0 0.8 25.4
2005 09 07 01 07.45 +05 18.8 46.060 46.906 146.8 0.7 25.4
2005 09 17 01 06.87 +05 15.1 45.981 46.906 156.7 0.5 25.4
2005 09 27 01 06.23 +05 11.0 45.930 46.906 166.6 0.3 25.3
2005 10 07 01 05.56 +05 06.8 45.909 46.906 176.3 0.1 25.3
2005 10 17 01 04.88 +05 02.7 45.917 46.906 173.0 0.1 25.3
2005 10 27 01 04.21 +04 58.7 45.954 46.906 163.0 0.4 25.3
2005 11 06 01 03.59 +04 55.0 46.021 46.906 152.9 0.6 25.4
2005 11 16 01 03.03 +04 51.7 46.115 46.906 142.7 0.7 25.4
2005 11 26 01 02.55 +04 49.1 46.234 46.906 132.5 0.9 25.4
2005 12 06 01 02.18 +04 47.1 46.373 46.906 122.3 1.0 25.4
2005 12 16 01 01.92 +04 45.9 46.528 46.906 112.0 1.1 25.5
2005 12 26 01 01.80 +04 45.6 46.694 46.906 101.8 1.2 25.5
2006 01 05 01 01.81 +04 46.1 46.867 46.906 91.6 1.2 25.5
2006 01 15 01 01.96 +04 47.4 47.041 46.906 81.5 1.2 25.5
2006 01 25 01 02.24 +04 49.6 47.210 46.906 71.4 1.1 25.5
2006 02 04 01 02.66 +04 52.5 47.370 46.906 61.4 1.1 25.5
2006 02 14 01 03.19 +04 56.1 47.516 46.906 51.4 0.9 25.5
2006 02 24 01 03.82 +05 00.4 47.643 46.906 41.5 0.8 25.5
2006 03 06 01 04.54 +05 05.1 47.747 46.906 31.7 0.6 25.5
2004 XY186 a,e,i = 39.47, 0.14, 21 q = 34.103
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 07 09 01 15.99 +06 57.5 34.148 34.104 86.7 1.7 25.3
2005 07 19 01 16.12 +06 59.2 33.980 34.104 96.2 1.7 25.3
2005 07 29 01 16.08 +06 59.9 33.815 34.104 105.7 1.6 25.3
2005 08 08 01 15.86 +06 59.5 33.658 34.104 115.3 1.5 25.3
2005 08 18 01 15.47 +06 58.1 33.513 34.105 125.0 1.4 25.3
2005 08 28 01 14.92 +06 55.9 33.385 34.105 134.8 1.2 25.3
2005 09 07 01 14.24 +06 52.8 33.278 34.105 144.7 1.0 25.2
2005 09 17 01 13.45 +06 49.1 33.194 34.105 154.6 0.7 25.2
2005 09 27 01 12.57 +06 45.0 33.138 34.105 164.6 0.4 25.2
2005 10 07 01 11.64 +06 40.5 33.110 34.105 174.6 0.2 25.1
2005 10 17 01 10.69 +06 36.0 33.112 34.105 175.1 0.1 25.1
2005 10 27 01 09.75 +06 31.6 33.144 34.105 165.0 0.4 25.2
2005 11 06 01 08.87 +06 27.6 33.206 34.105 154.7 0.7 25.2
2005 11 16 01 08.07 +06 24.1 33.296 34.105 144.5 1.0 25.2
2005 11 26 01 07.39 +06 21.3 33.410 34.106 134.2 1.2 25.3
2005 12 06 01 06.85 +06 19.5 33.546 34.106 123.9 1.4 25.3
2005 12 16 01 06.47 +06 18.6 33.699 34.106 113.7 1.5 25.3
2005 12 26 01 06.28 +06 18.9 33.864 34.106 103.5 1.6 25.3
2006 01 05 01 06.27 +06 20.3 34.036 34.106 93.3 1.6 25.3
2006 01 15 01 06.45 +06 22.8 34.210 34.106 83.1 1.6 25.3
2006 01 25 01 06.81 +06 26.5 34.380 34.106 73.1 1.6 25.4
2006 02 04 01 07.36 +06 31.3 34.542 34.106 63.1 1.5 25.4
2006 02 14 01 08.06 +06 37.0 34.690 34.107 53.1 1.3 25.3
2006 02 24 01 08.91 +06 43.5 34.820 34.107 43.3 1.1 25.3
2006 03 06 01 09.88 +06 50.8 34.929 34.107 33.5 0.9 25.3
2004 XZ186 a,e,i = 39.65, 0.35, 11 q = 25.958
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 07 09 03 09.29 +16 33.6 35.628 35.091 57.4 1.4 25.7
2005 07 19 03 10.00 +16 35.7 35.470 35.080 66.7 1.5 25.7
2005 07 29 03 10.55 +16 37.0 35.300 35.070 76.1 1.6 25.7
2005 08 08 03 10.92 +16 37.6 35.123 35.060 85.6 1.7 25.7
2005 08 18 03 11.10 +16 37.4 34.944 35.050 95.2 1.6 25.7
2005 08 28 03 11.10 +16 36.5 34.768 35.040 104.8 1.6 25.6
2005 09 07 03 10.91 +16 34.9 34.600 35.030 114.5 1.5 25.6
2005 09 17 03 10.54 +16 32.5 34.443 35.020 124.4 1.4 25.6
2005 09 27 03 10.01 +16 29.5 34.303 35.010 134.3 1.2 25.6
2005 10 07 03 09.33 +16 26.0 34.184 35.000 144.3 1.0 25.5
2005 10 17 03 08.53 +16 22.0 34.089 34.990 154.4 0.7 25.5
2005 10 27 03 07.64 +16 17.6 34.021 34.980 164.5 0.4 25.5
2005 11 06 03 06.69 +16 13.1 33.983 34.970 174.7 0.2 25.4
2005 11 16 03 05.72 +16 08.6 33.975 34.960 174.7 0.1 25.4
2005 11 26 03 04.77 +16 04.2 33.998 34.950 164.5 0.4 25.5
2005 12 06 03 03.87 +16 00.0 34.050 34.940 154.2 0.7 25.5
2005 12 16 03 03.07 +15 56.3 34.131 34.930 143.8 1.0 25.5
2005 12 26 03 02.39 +15 53.2 34.236 34.920 133.5 1.2 25.6
2006 01 05 03 01.87 +15 50.7 34.362 34.910 123.1 1.4 25.6
2006 01 15 03 01.51 +15 49.0 34.506 34.900 112.9 1.5 25.6
2006 01 25 03 01.35 +15 48.1 34.661 34.890 102.6 1.6 25.6
2006 02 04 03 01.38 +15 48.0 34.823 34.879 92.5 1.6 25.6
2006 02 14 03 01.60 +15 48.8 34.986 34.869 82.4 1.6 25.6
2006 02 24 03 02.02 +15 50.4 35.145 34.859 72.4 1.6 25.6
2006 03 06 03 02.63 +15 52.7 35.295 34.849 62.6 1.4 25.6
2006 03 16 03 03.40 +15 55.7 35.432 34.839 52.8 1.3 25.6
2006 03 26 03 04.32 +15 59.3 35.551 34.829 43.1 1.1 25.6
2006 04 05 03 05.37 +16 03.3 35.649 34.819 33.5 0.9 25.6
The assumed 2:3 Neptune-resonance orbits for 2004 XY186 and 2004 XZ186
keep these objects more than 9 AU and 7 AU, respectively, from Neptune over
a 14 000-year period.
Brian G. Marsden (C) Copyright 2005 MPC M.P.E.C. 2005-N72
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