MPEC 2010-O27 : 2004 XK50
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M.P.E.C. 2010-O27 Issued 2010 July 23, 22:11 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.minorplanetcenter.org/iau/mpc.html ISSN 1523-6714
2004 XK50
Revision to MPEC 2004-X77
Additional Observations:
K04X50K S2010 07 19.60993 03 32 33.76 -46 43 03.6 20 R EO027C51
K04X50K s2010 07 19.60993 1 + 4234.3367 + 1141.8833 - 5345.8965 EO027C51
K04X50K S2010 07 19.67601 03 32 34.28 -46 47 08.9 EO027C51
K04X50K s2010 07 19.67601 1 + 4261.1537 + 1162.9819 - 5319.9593 EO027C51
K04X50K S2010 07 19.74223 03 32 34.76 -46 51 14.0 EO027C51
K04X50K s2010 07 19.74223 1 + 4231.3341 + 1151.0080 - 5346.3287 EO027C51
K04X50K S2010 07 19.80832 03 32 35.25 -46 55 18.4 EO027C51
K04X50K s2010 07 19.80832 1 + 4257.6928 + 1172.1040 - 5320.7655 EO027C51
K04X50K S2010 07 19.80845 03 32 35.29 -46 55 18.7 EO027C51
K04X50K s2010 07 19.80845 1 + 4201.3120 + 1138.9208 - 5372.6001 EO027C51
K04X50K S2010 07 19.87453 03 32 35.75 -46 59 22.8 EO027C51
K04X50K s2010 07 19.87453 1 + 4227.8898 + 1160.2604 - 5347.0558 EO027C51
K04X50K S2010 07 19.94075 03 32 36.16 -47 03 27.4 EO027C51
K04X50K s2010 07 19.94075 1 + 4198.6070 + 1148.7843 - 5372.5314 EO027C51
K04X50K S2010 07 20.00684 03 32 36.64 -47 07 30.9 EO027C51
K04X50K s2010 07 20.00684 1 + 4226.0164 + 1170.7544 - 5346.5362 EO027C51
K04X50K S2010 07 20.20536 03 32 37.92 -47 19 40.1 EO027C51
K04X50K s2010 07 20.20536 1 + 4194.8695 + 1168.6146 - 5371.5417 EO027C51
K04X50K QC2010 07 23.82189 03 32 39.20 -50 51 48.7 20.3 V EO027E12
K04X50K QC2010 07 23.82689 03 32 39.13 -50 52 05.3 EO027E12
Observer details:
C51 WISE. Measurers A. K. Mainzer, E. L. Wright, J. M. Bauer, T. Grav,
J. W. Dailey, J. R. Masiero, R. M. Cutri.
E12 Siding Spring Survey. Observer R. H. McNaught. 0.5-m Uppsala Schmidt
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
100719 C51 2.30- 0.78+ 100723 E12 1.98- 1.15+ MPO 74451 -2.6 day
Orbital elements:
2004 XK50 PHA, Earth MOID = 0.0426 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC
M 36.94751 (2000.0) P Q
n 0.56392731 Peri. 103.88807 -0.74294231 +0.26030636
a 1.4509551 Node 94.26510 -0.51045218 -0.81628226
e 0.6889413 Incl. 38.19784 +0.43298418 -0.51567807
P 1.75 H 19.1 G 0.15 U 2
Residuals in seconds of arc
041214 699 0.6- 0.3- 041217 649 0.1- 0.1- 050103 587 2.3- 0.6-
041214 699 0.7- 0.1- 041217 649 0.1+ 0.2- 050103 587 0.1- 1.3+
041214 699 0.4- 0.6+ 041221 448 0.4- 0.5+ 050103 587 1.4- 1.1+
041214 699 0.4- 0.2+ 041221 448 0.0 0.2+ 050108 448 0.3+ 0.5-
041214 413 0.1- 0.2- 041221 448 0.1+ 0.4+ 050108 448 0.4+ 0.6-
041214 413 0.1+ 0.2- 041225 448 0.0 0.2- 050108 448 0.3+ 0.3-
041214 413 0.0 0.2- 041225 448 0.3+ 0.0 100719 C51 0.0 0.6-
041214 413 0.2+ 0.1+ 041225 448 0.3+ 0.1- 100719 C51 0.1+ 0.5-
041214 413 0.2- 0.2+ 041227 170 0.8+ 0.3+ 100719 C51 0.0 0.2-
041214 587 1.3- 0.8- 041227 170 0.8+ 0.1+ 100719 C51 0.0 0.1+
041214 587 1.5+ 1.0- 041227 170 0.9+ 0.2+ 100719 C51 0.5+ 0.1+
041214 246 0.0 0.3- 041229 428 0.2- 0.2- 100719 C51 0.3+ 0.2+
041214 246 0.2- 0.3- 041229 428 1.6+ 0.4- 100719 C51 0.2- 0.1-
041214 246 0.0 0.2+ 041230 587 0.8+ 0.3- 100720 C51 0.1+ 0.1-
041214 587 1.3- 0.1- 041230 587 0.9+ 0.4+ 100720 C51 0.3+ 0.2-
041214 246 0.2+ 0.2+ 041231 104 0.6- 0.5+ 100723 E12 0.1- 0.1-
041214 246 0.5+ 0.1+ 041231 104 0.8+ 0.1- 100723 E12 0.1- 0.4+
041217 649 0.0 0.1- 041231 104 1.7- 0.2-
Ephemeris:
2004 XK50 a,e,i = 1.45, 0.69, 38 q = 0.4513
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 07 23 03 32.70 -50 05.0 0.580 1.194 92.7 58.2 20.4
2010 08 02 03 28.48 -58 41.0 0.663 1.306 100.1 49.9 20.6
2010 08 12 03 12.99 -65 36.8 0.752 1.410 105.1 43.9 20.9
2010 08 22 02 39.28 -70 51.6 0.848 1.508 108.1 39.6 21.2
2010 09 01 01 42.81 -74 02.5 0.951 1.599 109.3 36.5 21.5
2010 09 11 00 33.39 -74 45.7 1.061 1.685 109.1 34.4 21.8
Gareth V. Williams (C) Copyright 2010 MPC M.P.E.C. 2010-O27
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