MPEC 2005-L33 : 2003 LG7
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M.P.E.C. 2005-L33 Issued 2005 June 7, 02:36 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
2003 LG7
Revision to MPEC 2005-K47
Additional Observations:
K03L07G C2004 07 15.09464 15 41 37.04 -19 21 50.8 22.6 R EL033807
K03L07G C2004 07 16.01386 15 41 34.72 -19 21 36.0 EL033807
K03L07G C2004 07 16.05665 15 41 34.61 -19 21 35.2 EL033807
Observer details:
807 Cerro Tololo. Observers M. W. Buie, J. L. Elliot, J. F. Kane,
M. E. Teyssier. Measurer L. H. Wasserman. 4-m Blanco reflector + CCD.
Orbital elements:
2003 LG7
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5 MPC
M 6.23781 (2000.0) P Q
n 0.00198246 Peri. 341.80935 -0.74823648 +0.59556378
a 62.7575849 Node 238.33722 -0.55804000 -0.80327441
e 0.4837869 Incl. 20.08600 -0.35879454 +0.00734880
P 497 H 7.9 G 0.15 U 4
Residuals in seconds of arc
030601 807 0.0 0.1+ 030706 568 0.1- 0.1- 050510 807 0.2+ 0.2-
030602 807 0.2- 0.2- 040715 807 0.2- 0.1- 050510 807 0.1+ 0.2+
030602 807 0.3+ 0.5+ 040716 807 0.1+ 0.1- 050511 807 0.2- 0.1+
030706 568 0.0 0.3- 040716 807 0.1+ 0.1+
Ephemeris:
2003 LG7 a,e,i = 62.76, 0.48, 20 q = 32.396
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 05 30 15 55.03 -19 20.2 32.106 33.110 172.0 0.2 23.1
2005 06 09 15 54.08 -19 16.1 32.147 33.115 162.2 0.5 23.1
2005 06 19 15 53.19 -19 12.2 32.215 33.119 152.5 0.8 23.2
2005 06 29 15 52.41 -19 08.6 32.308 33.123 142.7 1.1 23.2
2005 07 09 15 51.75 -19 05.5 32.425 33.128 133.1 1.3 23.2
2005 07 19 15 51.25 -19 02.9 32.562 33.132 123.4 1.5 23.3
2005 07 29 15 50.93 -19 00.9 32.714 33.136 113.8 1.6 23.3
2005 08 08 15 50.81 -18 59.5 32.878 33.141 104.2 1.7 23.3
2005 08 18 15 50.88 -18 58.8 33.049 33.145 94.6 1.7 23.3
2005 08 28 15 51.15 -18 58.7 33.222 33.149 85.0 1.7 23.3
2005 09 07 15 51.63 -18 59.2 33.393 33.154 75.4 1.7 23.3
2005 09 17 15 52.30 -19 00.3 33.557 33.158 65.9 1.6 23.3
2005 09 27 15 53.16 -19 01.9 33.708 33.163 56.3 1.4 23.3
2005 10 07 15 54.17 -19 04.0 33.845 33.167 46.7 1.3 23.3
2005 10 17 15 55.34 -19 06.4 33.961 33.172 37.1 1.0 23.3
This object was previously suspected by both the current observers and
the undersigned as being in 1:3 resonance with Neptune, and the new orbit
above confirms the object as the first such librator to be definitely
established.
Brian G. Marsden (C) Copyright 2005 MPC M.P.E.C. 2005-L33
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