MPEC 2004-R12 : 2003 KO20, 2003 QA91, 2003 QB92
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M.P.E.C. 2004-R12 Issued 2004 Sept. 4, 04:00 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 KO20, 2003 QA91, 2003 QB92
Revision to MPEC 2003-N18, 2003-Q58, 2003-Q61
Additional Observations:
K03K20O C2004 08 11.99963 14 07 34.77 -13 19 57.0 22.2 R ER012807
K03K20O C2004 08 13.01778 14 07 36.93 -13 20 07.7 ER012807
K03Q91A C2004 07 17.19348 22 00 40.85 -13 55 34.3 20.8 R ER012807
K03Q91A C2004 07 17.29596 22 00 40.48 -13 55 36.4 ER012807
K03Q91A C2004 08 12.26789 21 58 57.03 -14 05 19.6 21.0 R ER012807
K03Q91A C2004 08 12.34177 21 58 56.70 -14 05 21.4 ER012807
K03Q92B C2004 07 17.19348 22 02 16.23 -13 45 06.4 22.1 R ER012807
K03Q92B C2004 07 17.29596 22 02 15.78 -13 45 08.9 ER012807
K03Q92B C2004 08 12.26789 22 00 12.54 -13 56 58.7 20.9 R ER012807
K03Q92B C2004 08 12.34177 22 00 12.18 -13 57 00.2 ER012807
Observer details:
807 Cerro Tololo. Observers L. H. Wasserman, D. E. Trilling, J. R. Lovering,
M. W. Buie, J. L. Elliot, J. F. Kane, M. E. Teyssier. Measurers
L. H. Wasserman, M. W. Buie, R. L. Millis, S. D. Kern, S. J. Cole,
T. A. Jones, A. L. Vaz, J. L. Elliot, J. F. Kane, M. E. Teyssier,
A. A. S. Gulbis, M. Leung, A. L. Vax, K. B. Clancy. 4-m reflector + CCD.
Orbital elements:
2003 KO20
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 290.66208 (2000.0) P Q
n 0.00303190 Peri. 79.56892 +0.61890572 +0.78511624
a 47.2780741 Node 228.69354 -0.73229459 +0.56597277
e 0.2052419 Incl. 1.78612 -0.28407806 +0.25152994
P 325 H 6.0 G 0.15 U 8
Residuals in seconds of arc
K035U 807 0.2+ 0.1+ K035V 807 0.1+ 0.1+ K048D 807 0.0 0.2-
K035U 807 0.1- 0.2- K048B 807 0.1+ 0.1+
2003 QA91
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 256.62680 (2000.0) P Q
n 0.00335265 Peri. 333.37329 +0.20672913 -0.97754906
a 44.2123415 Node 104.67343 +0.90500600 +0.17522749
e 0.0731537 Incl. 2.41448 +0.37178920 +0.11701775
P 294 H 5.1 G 0.15 U 6
Residuals in seconds of arc
K038O 807 0.0 0.0 K039T 688 0.5+ 0.2- K047H 807 0.0 0.0
K038P 807 0.0 0.0 K03AN 304 0.0 0.1+ K048C 807 0.0 0.0
K038P 807 0.0 0.0 K03AN 304 0.0 0.2+ K048C 807 0.1- 0.0
K039T 688 0.5- 0.0 K047H 807 0.1+ 0.0
2003 QB92
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 138.89122 (2000.0) P Q
n 0.00481287 Peri. 61.40738 -0.99824690 +0.02688374
a 34.7429657 Node 120.08902 -0.04449329 -0.92836129
e 0.0958599 Incl. 3.49385 +0.03903163 -0.37070552
P 205 H 7.1 G 0.15 U 6
Residuals in seconds of arc
K038O 807 0.2- 0.1- K03A2 568 0.1+ 0.1- K047H 807 0.1- 0.1+
K038P 807 0.0 0.1- K03AO 695 0.0 0.1+ K048C 807 0.2- 0.4-
K038P 807 0.2+ 0.1- K03AO 695 0.1+ 0.4+ K048C 807 0.2+ 0.2+
K03A2 568 0.4- 0.1- K047H 807 0.1+ 0.1+
Ephemerides:
2003 KO20 a,e,i = 47.28, 0.21, 2 q = 37.575
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 09 02 14 08.59 -13 24.9 46.301 45.726 54.7 1.0 22.8
2004 09 12 14 09.25 -13 28.2 46.424 45.721 45.2 0.9 22.8
2004 09 22 14 10.00 -13 32.0 46.527 45.715 35.6 0.7 22.8
2003 QA91 a,e,i = 44.21, 0.07, 2 q = 40.978
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 09 02 21 57.46 -14 13.3 44.187 45.169 166.6 0.3 21.7
2004 09 12 21 56.77 -14 16.9 44.241 45.168 156.8 0.5 21.7
2004 09 22 21 56.14 -14 20.1 44.322 45.166 146.9 0.7 21.7
2004 10 02 21 55.60 -14 22.8 44.427 45.164 137.0 0.9 21.8
2004 10 12 21 55.15 -14 24.9 44.555 45.162 127.0 1.0 21.8
2004 10 22 21 54.83 -14 26.3 44.700 45.160 117.0 1.1 21.8
2004 11 01 21 54.64 -14 27.0 44.859 45.159 107.0 1.2 21.8
2004 11 11 21 54.59 -14 26.9 45.027 45.157 96.9 1.2 21.8
2004 11 21 21 54.69 -14 26.0 45.198 45.155 86.9 1.3 21.8
2004 12 01 21 54.94 -14 24.4 45.368 45.153 76.9 1.2 21.8
2004 12 11 21 55.32 -14 22.1 45.530 45.152 66.8 1.1 21.8
2004 12 21 21 55.85 -14 19.0 45.681 45.150 56.8 1.0 21.8
2004 12 31 21 56.49 -14 15.4 45.816 45.148 46.8 0.9 21.8
2005 01 10 21 57.24 -14 11.2 45.930 45.146 36.8 0.7 21.8
2003 QB92 a,e,i = 34.74, 0.10, 3 q = 31.413
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 09 02 21 58.42 -14 06.8 36.401 37.384 166.9 0.4 22.8
2004 09 12 21 57.60 -14 11.1 36.457 37.386 157.0 0.6 22.9
2004 09 22 21 56.85 -14 15.0 36.541 37.388 147.1 0.8 22.9
2004 10 02 21 56.20 -14 18.3 36.649 37.389 137.1 1.0 22.9
2004 10 12 21 55.67 -14 20.8 36.780 37.391 127.1 1.2 23.0
2004 10 22 21 55.29 -14 22.6 36.928 37.392 117.1 1.4 23.0
2004 11 01 21 55.07 -14 23.4 37.090 37.394 107.1 1.5 23.0
2004 11 11 21 55.02 -14 23.4 37.261 37.395 97.1 1.5 23.0
2004 11 21 21 55.15 -14 22.3 37.435 37.397 87.0 1.5 23.0
2004 12 01 21 55.46 -14 20.4 37.608 37.399 77.0 1.5 23.0
2004 12 11 21 55.94 -14 17.6 37.774 37.400 67.0 1.4 23.0
2004 12 21 21 56.58 -14 13.9 37.929 37.402 57.0 1.3 23.0
2004 12 31 21 57.36 -14 09.6 38.067 37.403 47.0 1.1 23.0
2005 01 10 21 58.27 -14 04.6 38.185 37.405 37.0 0.9 23.0
The 4:5 Neptune-resonance orbit for 2003 QB92 keeps the object more than
8 AU from Neptune over a 14 000-year period.
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-R12
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