MPEC 2004-L28 : 2003 FB128
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M.P.E.C. 2004-L28 Issued 2004 June 11, 01:07 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 FB128
Revision to MPEC 2003-H07
Additional Observations:
K03FC8B C2004 03 15.40162 14 00 45.82 -12 00 16.3 21.5 R EL028695
K03FC8B C2004 03 15.48311 14 00 45.46 -12 00 14.2 EL028695
K03FC8B C2004 04 15.42162 13 58 05.44 -11 43 55.9 EL028675
K03FC8B C2004 04 15.44458 13 58 05.30 -11 43 54.9 EL028675
K03FC8B C2004 04 16.44932 13 57 59.49 -11 43 19.6 EL028675
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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
040315 695 0.06- 0.02+ 040416 675 0.06- 0.02+ MPO 50759
Orbital elements:
2003 FB128
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 34.38007 (2000.0) P Q
n 0.00391188 Peri. 305.27307 -0.89969058 -0.42987669
a 39.8914021 Node 209.48284 +0.43357122 -0.85977325
e 0.2646390 Incl. 8.87301 +0.05072329 -0.27567370
P 252 H 6.4 G 0.15 U 5
Residuals in seconds of arc
030330 695 0.2+ 0.3+ 030430 688 0.2+ 0.4+ 040315 695 0.1- 0.0
030330 695 0.2+ 0.2+ 030530 807 0.2- 0.0 040315 695 0.1- 0.1-
030331 695 0.1+ 0.3+ 030530 807 0.1- 0.3- 040415 675 0.4+ 0.2-
030421 304 0.3- 0.2+ 030530 688 0.0 0.1- 040415 675 0.3+ 0.0
030421 304 0.2- 0.3+ 030530 688 0.1- 0.7- 040416 675 0.4- 0.5+
030430 688 0.3+ 0.7- 030531 807 0.3- 0.1-
Ephemeris:
2003 FB128 a,e,i = 39.89, 0.26, 9 q = 29.335
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 06 04 13 53.83 -11 18.0 31.671 32.418 136.8 1.2 21.6
2004 06 14 13 53.28 -11 14.4 31.802 32.424 127.1 1.4 21.7
2004 06 24 13 52.88 -11 11.8 31.950 32.430 117.4 1.6 21.7
2004 07 04 13 52.67 -11 10.2 32.111 32.437 107.8 1.7 21.7
2004 07 14 13 52.64 -11 09.6 32.281 32.443 98.3 1.8 21.7
2004 07 24 13 52.80 -11 10.0 32.455 32.449 88.8 1.8 21.7
2004 08 03 13 53.15 -11 11.5 32.628 32.455 79.3 1.8 21.7
2004 08 13 13 53.68 -11 14.0 32.797 32.462 69.9 1.7 21.7
2004 08 23 13 54.39 -11 17.5 32.955 32.468 60.4 1.6 21.7
2004 09 02 13 55.26 -11 21.8 33.100 32.474 51.0 1.4 21.7
2004 09 12 13 56.28 -11 26.9 33.227 32.481 41.5 1.2 21.7
2004 09 22 13 57.41 -11 32.6 33.333 32.487 32.1 0.9 21.7
This 2:3 Neptune librator remains more than 15 AU from Neptune over
a 14 000-year period.
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-L28
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