MPEC 2004-K29 : 2003 FE128, 2003 FF128, 2003 GF55
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M.P.E.C. 2004-K29 Issued 2004 May 20, 17:54 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 Steven and Michele Kirsch 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 FE128, 2003 FF128, 2003 GF55
Revision to MPEC 2003-H07, 2003-N18
Additional Observations:
K03FC8E C2004 03 15.41250 14 06 47.81 -10 19 43.6 21.6 R EK029695
K03FC8E C2004 03 15.48722 14 06 47.52 -10 19 41.9 EK029695
K03FC8E C2004 04 15.42473 14 04 25.30 -10 05 42.8 EK029675
K03FC8E C2004 04 15.44770 14 04 25.18 -10 05 42.2 EK029675
K03FC8E C2004 04 16.45247 14 04 20.02 -10 05 13.3 EK029675
K03FC8F C2004 03 15.41711 14 14 40.90 -11 46 04.7 20.6 R EK029695
K03FC8F C2004 03 15.49111 14 14 40.56 -11 46 03.0 EK029695
K03FC8F C2004 04 15.42950 14 12 06.15 -11 32 10.2 EK029675
K03FC8F C2004 04 15.45098 14 12 06.02 -11 32 09.6 EK029675
K03FC8F C2004 04 16.45590 14 12 00.35 -11 31 39.9 EK029675
K03G55F C2004 04 15.41712 13 51 10.58 -06 51 02.4 EK029675
K03G55F C2004 04 15.44053 13 51 10.48 -06 51 02.0 EK029675
K03G55F C2004 04 16.43393 13 51 06.39 -06 50 37.6 EK029675
Observer details:
675 Palomar. Observers B. Gladman, J. Kavelaars. Measurer C. Van Laerhoven.
5-m Hale reflector + CCD.
695 Kitt Peak. Observers L. H. Wasserman, R. L. Millis. Measurers
M. W. Buie, R. L. Millis, L. H. Wasserman, S. D. Kern, K. B. Clancy,
D. E. Trilling, G. C. Panova. 4-m reflector + CCD.
Orbital elements:
2003 FE128
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 356.96126 (2000.0) P Q
n 0.00294567 Peri. 48.89499 -0.78703305 +0.61681132
a 48.1963057 Node 169.17301 -0.58221369 -0.73670919
e 0.2540492 Incl. 3.38167 -0.20397597 -0.27713419
P 335 H 5.7 G 0.15 U 6
Residuals in seconds of arc
K033V 695 0.3- 0.3- K0361 568 0.2- 0.2+ K044F 675 0.0 0.2+
K0341 695 0.1- 0.2- K0362 568 0.1+ 0.1+ K044F 675 0.0 0.1+
K0341 695 0.2- 0.2- K0362 568 0.1+ 0.2+ K044G 675 0.2+ 0.1-
K034L 304 0.3+ 0.1+ K043F 695 0.1- 0.1-
K034L 304 0.3+ 0.1+ K043F 695 0.1- 0.2-
2003 FF128
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 330.61369 (2000.0) P Q
n 0.00394976 Peri. 167.88404 -0.18023995 +0.98305763
a 39.6359183 Node 91.72543 -0.90521775 -0.15251840
e 0.2122277 Incl. 1.91121 -0.38483034 -0.10166532
P 250 H 6.6 G 0.15 U 5
Residuals in seconds of arc
K033V 695 0.1- 0.0 K034U 688 0.5+ 0.1- K043F 695 0.5- 0.4-
K0341 695 0.1- 0.1+ K035U 688 0.4- 0.3- K044F 675 0.0 0.4+
K0341 695 0.0 0.1+ K035U 688 0.1- 0.0 K044F 675 0.1- 0.3+
K034L 304 0.1+ 0.1- K0362 568 0.1- 0.0 K044G 675 0.4+ 0.2+
K034L 304 0.1+ 0.1+ K0362 568 0.1+ 0.4-
K034U 688 0.1- 0.6+ K043F 695 0.1+ 0.5-
2003 GF55
Eccentricity assumed
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 316.10135 (2000.0) P Q
n 0.00237795 Peri. 138.30223 +0.52245488 +0.85214303
a 55.5905531 Node 163.12591 -0.80702188 +0.50549688
e 0.4345573 Incl. 5.90954 -0.27523914 +0.13537045
P 414 H 6.2 G 0.15
Residuals in seconds of arc
K0341 695 0.0 0.1- K035U 807 0.1- 0.3+ K044F 675 0.3- 0.0
K0341 695 0.0 0.0 K035V 807 0.1+ 0.1- K044G 675 0.5+ 0.1-
K035U 807 0.0 0.1- K044F 675 0.2- 0.1+
Ephemerides:
2003 FE128 a,e,i = 48.20, 0.25, 3 q = 35.952
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 05 15 14 01.92 -09 52.1 35.052 35.987 157.2 0.6 21.3
2004 05 25 14 01.17 -09 48.3 35.128 35.986 147.5 0.9 21.3
2004 06 04 14 00.52 -09 45.0 35.228 35.985 137.7 1.1 21.4
2004 06 14 14 00.00 -09 42.5 35.350 35.985 128.0 1.3 21.4
2004 06 24 13 59.61 -09 40.9 35.489 35.984 118.4 1.4 21.4
2004 07 04 13 59.38 -09 40.1 35.643 35.984 108.8 1.5 21.4
2004 07 14 13 59.31 -09 40.3 35.805 35.983 99.3 1.6 21.5
2004 07 24 13 59.42 -09 41.5 35.972 35.982 89.8 1.6 21.5
2004 08 03 13 59.69 -09 43.5 36.139 35.982 80.3 1.6 21.5
2004 08 13 14 00.14 -09 46.5 36.301 35.981 70.9 1.5 21.5
2004 08 23 14 00.74 -09 50.2 36.454 35.981 61.4 1.4 21.5
2004 09 02 14 01.49 -09 54.7 36.593 35.980 52.0 1.3 21.5
2004 09 12 14 02.38 -09 59.9 36.715 35.980 42.5 1.1 21.5
2004 09 22 14 03.38 -10 05.5 36.816 35.979 33.0 0.9 21.5
2003 FF128 a,e,i = 39.64, 0.21, 2 q = 31.224
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 05 15 14 09.32 -11 18.0 31.963 32.912 159.5 0.6 21.8
2004 05 25 14 08.47 -11 13.8 32.029 32.908 149.7 0.9 21.9
2004 06 04 14 07.73 -11 10.3 32.121 32.903 139.9 1.1 21.9
2004 06 14 14 07.11 -11 07.4 32.234 32.899 130.2 1.4 21.9
2004 06 24 14 06.65 -11 05.5 32.367 32.895 120.5 1.5 21.9
2004 07 04 14 06.36 -11 04.5 32.514 32.891 110.9 1.7 22.0
2004 07 14 14 06.24 -11 04.5 32.671 32.887 101.4 1.7 22.0
2004 07 24 14 06.32 -11 05.5 32.834 32.882 91.9 1.8 22.0
2004 08 03 14 06.58 -11 07.5 32.997 32.878 82.4 1.8 22.0
2004 08 13 14 07.04 -11 10.4 33.157 32.874 72.9 1.7 22.0
2004 08 23 14 07.67 -11 14.3 33.309 32.870 63.5 1.6 22.0
2004 09 02 14 08.46 -11 19.0 33.448 32.866 54.0 1.4 22.0
2004 09 12 14 09.40 -11 24.4 33.571 32.862 44.6 1.2 22.0
2004 09 22 14 10.48 -11 30.4 33.674 32.858 35.1 1.0 22.0
2003 GF55 a,e,i = 55.59, 0.43, 6 q = 31.433
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 05 15 13 49.18 -06 40.0 45.230 46.133 153.0 0.6 22.9
2004 05 25 13 48.60 -06 37.0 45.306 46.122 143.3 0.8 22.9
2004 06 04 13 48.10 -06 34.7 45.405 46.111 133.6 0.9 22.9
2004 06 14 13 47.69 -06 33.0 45.524 46.100 124.0 1.0 23.0
2004 06 24 13 47.40 -06 32.1 45.659 46.089 114.4 1.2 23.0
2004 07 04 13 47.23 -06 31.9 45.806 46.078 104.9 1.2 23.0
2004 07 14 13 47.18 -06 32.5 45.960 46.067 95.4 1.3 23.0
2004 07 24 13 47.28 -06 33.9 46.117 46.055 85.9 1.3 23.0
2004 08 03 13 47.50 -06 36.0 46.272 46.044 76.4 1.2 23.0
2004 08 13 13 47.85 -06 38.8 46.420 46.033 67.0 1.2 23.0
2004 08 23 13 48.33 -06 42.2 46.558 46.022 57.5 1.1 23.0
2004 09 02 13 48.92 -06 46.1 46.679 46.011 48.0 0.9 23.0
2004 09 12 13 49.60 -06 50.5 46.782 46.000 38.6 0.8 23.0
The 1:2 Neptune librator 2003 FE128 remains more than 17 AU, the 2:3
Neptune librator 2003 FF128 more than 17 AU and the presumed 2:5 Neptune
librator 2003 GF55 more than 26 AU from Neptune over a 14 000-year period.
In the note at the end of MPEC 2003-H07, it should say "2003 FE128 and 2003
FF128", rather than "2003 FF128", although the original one-day-arc guess that
2003 FE128 was a 2:3 Neptune librator was incorrect.
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-K29
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