MPEC 2003-J18 : 2002 GP32
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M.P.E.C. 2003-J18 Issued 2003 May 4, 01:58 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2002 GP32
Revision to MPEC 2002-K13
Additional Observations:
K02G32P C2003 03 30.41985 15 03 48.63 -15 41 13.0 21.2 R 695
K02G32P C2003 03 30.47728 15 03 48.38 -15 41 11.7 695
K02G32P C2003 05 03.34189 15 00 50.68 -15 28 11.5 290
K02G32P C2003 05 03.36719 15 00 50.52 -15 28 10.7 290
Observer details:
290 Mt. Graham. Observers S. Tegler, G. Consolmagno. Measurer W. Romanishin.
1.8 m reflector + CCD.
695 Kitt Peak. Observers M. W. Buie, A. B. Jordan. Measurers M. W. Buie,
A. B. Jordan, L. H. Wasserman, R. L. Millis. 4-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
030330 695 0.04- 0.01+ 030503 290 0.04- 0.01+ MPO 33978
Orbital elements:
2002 GP32
Epoch 2003 June 10.0 TT = JDT 2452800.5 MPC
M 357.50116 (2000.0) P Q
n 0.00238589 Peri. 110.10288 -0.58621873 +0.80983867
a 55.4672149 Node 123.98760 -0.75309428 -0.53445507
e 0.4225875 Incl. 1.55909 -0.29865801 -0.24190725
P 413 H 6.4 G 0.15 U 5
Residuals in seconds of arc
020406 807 0.0 0.0 020606 568 0.0 0.1+ 020607 568 0.0 0.0
020406 807 0.2- 0.1- 020606 568 0.0 0.0 020607 568 0.1- 0.0
020407 807 0.1- 0.1- 020606 568 0.1- 0.0 020607 568 0.1- 0.0
020411 568 0.1+ 0.1- 020606 568 0.1+ 0.1- 020612 688 0.1+ 0.6+
020411 568 0.1+ 0.2- 020606 568 0.1- 0.0 020612 688 0.4+ 0.1-
020606 568 0.0 0.0 020606 568 0.0 0.0 030330 695 0.0 0.1-
020606 568 0.0 0.1- 020606 568 0.0 0.0 030330 695 0.0 0.1+
020606 568 0.0 0.1+ 020607 568 0.0 0.1+ 030503 290 0.0 0.2-
020606 568 0.1+ 0.1- 020607 568 0.1- 0.0 030503 290 0.1- 0.0
Ephemeris:
2002 GP32 a,e,i = 55.47, 0.42, 2 q = 32.027
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2003 05 01 15 01.07 -15 29.2 31.100 32.099 172.7 0.2 21.5
2003 05 11 15 00.09 -15 25.0 31.090 32.098 176.8 0.1 21.4
2003 05 21 14 59.12 -15 21.0 31.109 32.097 167.2 0.4 21.5
2003 05 31 14 58.19 -15 17.2 31.157 32.095 157.4 0.7 21.5
2003 06 10 14 57.35 -15 13.8 31.232 32.094 147.6 1.0 21.6
2003 06 20 14 56.62 -15 11.0 31.332 32.093 137.9 1.2 21.6
2003 06 30 14 56.04 -15 08.9 31.453 32.092 128.2 1.4 21.6
2003 07 10 14 55.62 -15 07.6 31.592 32.090 118.6 1.6 21.6
2003 07 20 14 55.38 -15 07.0 31.744 32.089 109.0 1.7 21.7
2003 07 30 14 55.34 -15 07.4 31.906 32.088 99.4 1.8 21.7
2003 08 09 14 55.50 -15 08.6 32.072 32.087 89.9 1.8 21.7
2003 08 19 14 55.86 -15 10.7 32.239 32.086 80.4 1.8 21.7
2003 08 29 14 56.41 -15 13.6 32.401 32.084 70.9 1.7 21.7
2003 09 08 14 57.16 -15 17.2 32.553 32.083 61.4 1.6 21.7
2003 09 18 14 58.07 -15 21.6 32.692 32.082 51.9 1.4 21.7
2003 09 28 14 59.14 -15 26.5 32.814 32.081 42.4 1.2 21.7
2003 10 08 15 00.34 -15 31.9 32.914 32.080 32.9 1.0 21.7
This 2:5 Neptune librator remains more than 30 AU from Neptune over a
14 000-year period.
Brian G. Marsden (C) Copyright 2003 MPC M.P.E.C. 2003-J18
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