MPEC 2004-D29 : 2003 FM129, 2003 GH55
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M.P.E.C. 2004-D29 Issued 2004 Feb. 21, 16:07 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 FM129, 2003 GH55
Observations:
K03FC9M* C2003 03 31.25823 13 58 45.62 -11 35 53.9 23.3 ED029807
K03FC9M C2003 03 31.26636 13 58 45.54 -11 35 53.5 ED029807
K03FC9M C2003 03 31.27448 13 58 45.54 -11 35 53.5 ED029807
K03FC9M C2003 03 31.28261 13 58 45.50 -11 35 53.1 23.6 ED029807
K03FC9M C2003 03 31.29074 13 58 45.48 -11 35 52.8 23.2 ED029807
K03FC9M C2003 04 02.20858 13 58 37.04 -11 34 56.7 ED029807
K03FC9M C2003 04 03.27737 13 58 32.29 -11 34 24.9 ED029807
K03G55H* C2003 04 01.24897 14 01 20.37 -11 09 17.5 21.9 R ED029807
K03G55H C2003 04 01.28379 14 01 20.22 -11 09 16.9 21.4 R ED029807
K03G55H C2003 04 03.20272 14 01 11.81 -11 08 30.5 ED029807
K03G55H C2003 04 03.22711 14 01 11.71 -11 08 30.0 ED029807
K03G55H C2003 04 06.21869 14 00 58.35 -11 07 16.1 21.2 R ED029807
K03G55H C2003 04 06.26512 14 00 58.14 -11 07 15.0 21.5 R ED029807
Observer details:
807 Cerro Tololo. Observers I. Dell'Antonio, G. Squires, C. Navarro.
Measurers A. Becker, D. Wittman. 4-m Blanco reflector + CCD.
Orbital elements:
Object H G Epoch M Peri. Node Incl. e a Arc C
K03FC9M 6.5 0.15 K033M 359.971 1.493 209.733 18.675 0.12327 45.23704 3EX
K03G55H 5.8 0.15 K033M 359.967 95.083 116.529 1.102 0.09307 44.78873 5EX
Ephemerides:
2003 FM129 a,e,i = 45.24, 0.12, 19 q = 39.661
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 02 15 14 07.28 -11 54.2 39.284 39.662 111.8 1.3 22.6
2004 02 25 14 07.03 -11 51.8 39.129 39.662 122.0 1.2 22.6
2004 03 06 14 06.63 -11 48.6 38.990 39.662 132.1 1.1 22.6
2004 03 16 14 06.10 -11 44.7 38.871 39.662 142.3 0.9 22.6
2004 03 26 14 05.46 -11 40.3 38.776 39.662 152.4 0.7 22.6
2004 04 05 14 04.74 -11 35.5 38.707 39.662 162.4 0.4 22.5
2004 04 15 14 03.97 -11 30.5 38.668 39.662 172.4 0.2 22.5
2004 04 25 14 03.18 -11 25.3 38.657 39.662 177.4 0.1 22.5
2004 05 05 14 02.39 -11 20.3 38.677 39.662 167.6 0.3 22.5
2004 05 15 14 01.64 -11 15.4 38.725 39.663 157.8 0.6 22.5
2004 05 25 14 00.95 -11 11.0 38.800 39.663 147.9 0.8 22.6
2004 06 04 14 00.35 -11 07.0 38.901 39.663 138.2 1.0 22.6
2004 06 14 13 59.86 -11 03.7 39.022 39.663 128.5 1.1 22.6
2004 06 24 13 59.49 -11 01.2 39.162 39.663 118.9 1.3 22.6
2004 07 04 13 59.27 -10 59.4 39.316 39.663 109.3 1.4 22.7
2004 07 14 13 59.20 -10 58.4 39.479 39.663 99.7 1.4 22.7
2004 07 24 13 59.29 -10 58.4 39.647 39.663 90.2 1.5 22.7
2004 08 03 13 59.53 -10 59.1 39.815 39.663 80.7 1.4 22.7
2004 08 13 13 59.93 -11 00.7 39.978 39.663 71.2 1.4 22.7
2004 08 23 14 00.47 -11 03.1 40.132 39.664 61.7 1.3 22.7
2004 09 02 14 01.15 -11 06.2 40.273 39.664 52.3 1.2 22.7
2004 09 12 14 01.95 -11 09.8 40.397 39.664 42.8 1.0 22.7
2004 09 22 14 02.85 -11 14.0 40.500 39.664 33.2 0.8 22.7
2003 GH55 a,e,i = 44.79, 0.09, 1 q = 40.620
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 02 15 14 09.24 -11 52.4 40.250 40.621 111.4 1.3 22.0
2004 02 25 14 08.98 -11 50.8 40.094 40.621 121.5 1.2 22.0
2004 03 06 14 08.58 -11 48.5 39.954 40.621 131.7 1.0 22.0
2004 03 16 14 08.06 -11 45.5 39.835 40.621 141.8 0.9 22.0
2004 03 26 14 07.43 -11 42.0 39.738 40.621 151.9 0.7 22.0
2004 04 05 14 06.71 -11 38.1 39.669 40.621 161.9 0.4 21.9
2004 04 15 14 05.95 -11 34.0 39.628 40.621 171.9 0.2 21.9
2004 04 25 14 05.16 -11 29.8 39.616 40.621 177.7 0.1 21.9
2004 05 05 14 04.37 -11 25.6 39.634 40.621 168.1 0.3 21.9
2004 05 15 14 03.62 -11 21.7 39.681 40.621 158.2 0.5 21.9
2004 05 25 14 02.93 -11 18.2 39.755 40.622 148.4 0.7 22.0
2004 06 04 14 02.32 -11 15.1 39.854 40.622 138.7 0.9 22.0
2004 06 14 14 01.82 -11 12.6 39.975 40.622 129.0 1.1 22.0
2004 06 24 14 01.45 -11 10.9 40.113 40.622 119.4 1.2 22.0
2004 07 04 14 01.21 -11 09.9 40.266 40.622 109.8 1.3 22.1
2004 07 14 14 01.12 -11 09.7 40.429 40.622 100.2 1.4 22.1
2004 07 24 14 01.19 -11 10.3 40.597 40.622 90.7 1.4 22.1
2004 08 03 14 01.40 -11 11.8 40.765 40.622 81.2 1.4 22.1
2004 08 13 14 01.77 -11 14.0 40.928 40.622 71.7 1.4 22.1
2004 08 23 14 02.28 -11 17.0 41.083 40.622 62.2 1.3 22.1
2004 09 02 14 02.92 -11 20.7 41.225 40.622 52.8 1.1 22.1
2004 09 12 14 03.68 -11 25.0 41.350 40.622 43.2 1.0 22.1
2004 09 22 14 04.55 -11 29.8 41.453 40.622 33.7 0.8 22.1
Obviously, because the short arcs of observations of these objects were
obtained almost a year ago and the nominal orbital elements given above
involve significant assumptions, the ephemerides given above are very
uncertain. It is perhaps not generally appreciated, however, that plots
(and tabulations) of the current ephemeris uncertainties of single-opposition
TNOs (and centaurs) are routinely included on the "Minor Planet & Comet
Ephemeris" page ( http://cfa-www.harvard.edu/iau/MPEph/MPEph.html ) that the
Minor Planet Center maintains on the World-Wide Web. It is recommended
that observers interested in attempting follow-up of a specific object should
generally start from the nominal ephemeris at the center of the relevant plot
and work steadily outward into the region plotted in green. (Users should
note that there can be a modest delay between the publication of an associated
MPEC and the appearance of the corresponding ephemeris and uncertainties
on the WWW.)
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-D29
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