MPEC 2008-O48 : 2006 SG369
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M.P.E.C. 2008-O48 Issued 2008 July 30, 03:36 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2006 SG369
Revision to MPEC 2006-U62
Additional Observations:
K06Sa9G C2007 07 12.35906 02 27 08.60 +01 17 08.5 EO048304
K06Sa9G C2007 07 12.43765 02 27 08.90 +01 17 08.4 EO048304
K06Sa9G C2007 09 04.40137 02 27 46.49 +00 59 25.9 22.1 EO048705
K06Sa9G C2007 09 04.40220 02 27 46.49 +00 59 26.0 22.7 EO048705
K06Sa9G C2007 09 14.37580 02 27 15.87 +00 53 44.3 22.8 EO048705
K06Sa9G C2007 09 14.37912 02 27 15.85 +00 53 44.3 23.8 EO048705
K06Sa9G C2007 09 19.42538 02 26 56.51 +00 50 43.7 22.6 EO048705
K06Sa9G C2007 09 19.42870 02 26 56.49 +00 50 43.7 23.6 EO048705
K06Sa9G C2007 09 22.40598 02 26 43.99 +00 48 56.0 22.6 EO048705
K06Sa9G C2007 09 22.40930 02 26 43.95 +00 48 56.0 23.8 EO048705
K06Sa9G C2007 10 08.42463 02 25 24.67 +00 39 16.4 22.6 EO048705
K06Sa9G C2007 10 08.42795 02 25 24.64 +00 39 16.5 23.8 EO048705
K06Sa9G C2007 10 12.42207 02 25 02.31 +00 36 56.4 22.3 EO048705
K06Sa9G C2007 10 12.42539 02 25 02.28 +00 36 56.5 23.6 EO048705
K06Sa9G C2007 11 05.33175 02 22 38.14 +00 24 49.1 22.9 EO048705
K06Sa9G C2007 11 05.33258 02 22 38.13 +00 24 49.3 24.2 EO048705
K06Sa9G C2007 11 08.35246 02 22 19.67 +00 23 36.5 22.4 EO048705
K06Sa9G C2007 11 08.35578 02 22 19.64 +00 23 36.6 23.7 EO048705
K06Sa9G C2007 11 17.33061 02 21 26.09 +00 20 33.1 22.2 EO048705
K06Sa9G C2007 11 17.33393 02 21 26.06 +00 20 33.5 23.1 EO048705
Observer details:
304 Las Campanas Observatory. Observers S. D. Kern, A. Springmann.
Measurer S. D. Kern. Baade 6.5-m telescope + IMACS CCD.
705 Apache Point. Observer SDSS Collaboration. Measurers A. C. Becker,
A. W. Puckett, J. Kubica. 2.5-m f/5 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
070712 304 7.0+ 3.3+ 071117 705 10.7+ 5.3+ MPO112937
Orbital elements:
2006 SG369
Epoch 2008 May 14.0 TT = JDT 2454600.5 MPC
M 1.35752 (2000.0) P Q
n 0.00298794 Peri. 290.10311 +0.82782333 -0.51140306
a 47.7406123 Node 101.28647 +0.56098316 +0.75278596
e 0.3686762 Incl. 13.60020 +0.00253614 +0.41446376
P 330 H 7.7 G 0.15 U 4
Residuals in seconds of arc
060916 705 0.0 0.0 061029 705 0.1+ 0.0 070914 705 0.0 0.0
060916 705 0.1- 0.0 061029 705 0.3+ 0.0 070914 705 0.1- 0.1+
060918 705 0.1- 0.1+ 061110 705 0.1- 0.2+ 070919 705 0.0 0.1-
060918 705 0.1+ 0.2- 061110 705 0.2- 0.2- 070919 705 0.1- 0.0
060927 705 0.1+ 0.1+ 061114 705 0.0 0.1- 070922 705 0.1+ 0.0
060927 705 0.0 0.0 061114 705 0.0 0.1- 070922 705 0.3- 0.2+
061002 705 0.0 0.1+ 061120 705 0.2+ 0.3- 071008 705 0.1+ 0.2-
061002 705 0.1- 0.0 061120 705 0.1- 0.1- 071008 705 0.1- 0.0
061011 705 0.2- 0.1- 061123 705 0.1+ 0.0 071012 705 0.3+ 0.1-
061011 705 0.0 0.0 061123 705 0.0 0.1- 071012 705 0.1+ 0.1+
061013 705 0.2- 0.0 061125 705 0.2- 0.1- 071105 705 0.1+ 0.2-
061013 705 0.1+ 0.1- 061125 705 0.1- 0.0 071105 705 0.0 0.1+
061021 705 0.0 0.2+ 070712 304 0.1- 0.0 071108 705 0.1+ 0.0
061021 705 0.2+ 0.1- 070712 304 0.1- 0.1+ 071108 705 0.1- 0.2+
061028 705 0.1- 0.3+ 070904 705 0.0 0.1- 071117 705 0.1+ 0.4-
061028 705 0.3+ 0.2+ 070904 705 0.1+ 0.1+ 071117 705 0.1- 0.1+
Ephemeris:
2006 SG369 a,e,i = 47.74, 0.37, 14 q = 30.140
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 07 23 02 37.00 +02 18.7 30.264 30.156 83.0 1.9 22.7
2008 08 02 02 37.38 +02 16.7 30.101 30.157 92.2 1.9 22.7
2008 08 12 02 37.56 +02 13.7 29.938 30.158 101.5 1.9 22.7
2008 08 22 02 37.54 +02 09.8 29.782 30.158 110.9 1.8 22.7
2008 09 01 02 37.31 +02 05.1 29.636 30.159 120.4 1.7 22.7
2008 09 11 02 36.89 +01 59.8 29.505 30.160 129.8 1.5 22.6
2008 09 21 02 36.29 +01 54.1 29.393 30.160 139.3 1.2 22.6
2008 10 01 02 35.54 +01 48.3 29.303 30.161 148.5 1.0 22.6
2008 10 11 02 34.66 +01 42.5 29.238 30.162 157.3 0.7 22.6
2008 10 21 02 33.69 +01 37.0 29.202 30.162 164.6 0.5 22.5
2008 10 31 02 32.68 +01 32.1 29.195 30.163 167.1 0.4 22.5
2008 11 10 02 31.65 +01 27.9 29.217 30.164 162.7 0.6 22.5
2008 11 20 02 30.65 +01 24.7 29.269 30.165 154.6 0.8 22.6
2008 11 30 02 29.73 +01 22.7 29.349 30.166 145.4 1.1 22.6
2008 12 10 02 28.92 +01 21.9 29.454 30.166 135.7 1.3 22.6
2008 12 20 02 28.25 +01 22.4 29.581 30.167 125.8 1.5 22.7
2008 12 30 02 27.76 +01 24.2 29.726 30.168 115.9 1.7 22.7
2009 01 09 02 27.47 +01 27.4 29.885 30.169 105.9 1.8 22.7
2009 01 19 02 27.38 +01 31.8 30.051 30.170 96.0 1.9 22.7
2009 01 29 02 27.51 +01 37.4 30.222 30.170 86.1 1.9 22.7
2009 02 08 02 27.86 +01 44.0 30.390 30.171 76.3 1.8 22.7
2009 02 18 02 28.42 +01 51.4 30.551 30.172 66.6 1.7 22.7
2009 02 28 02 29.17 +01 59.5 30.701 30.173 57.0 1.6 22.7
2009 03 10 02 30.10 +02 08.1 30.834 30.174 47.6 1.4 22.7
2009 03 20 02 31.18 +02 16.9 30.949 30.175 38.4 1.2 22.7
This apparent 1:2 Neptune librator remains more than 19 AU from Neptune
over a 14 000-year period.
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-O48
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