MPEC 2005-N61 : 2003 US292
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M.P.E.C. 2005-N61 Issued 2005 July 12, 03:06 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 US292
Revision to MPEC 2003-Y84
Additional Observations:
K03UT2S C2004 10 17.17365 01 05 49.15 +05 14 25.5 EN061304
K03UT2S C2004 10 17.21834 01 05 48.90 +05 14 24.2 EN061304
K03UT2S C2004 10 17.26304 01 05 48.64 +05 14 22.5 EN061304
K03UT2S C2004 12 12.31346 01 01 48.31 +04 54 28.2 23.5 R EN061568
K03UT2S C2004 12 13.32341 01 01 46.55 +04 54 23.4 23.7 R EN061568
K03UT2S C2004 12 14.31742 01 01 44.91 +04 54 19.7 23.6 R EN061568
Observer details:
304 Las Campanas Observatory. Observers C. Trujillo, S. S. Sheppard.
Measurer S. S. Sheppard. 6.5-m Baade reflector + CCD.
568 Mauna Kea. Observers S. S. Sheppard, D. C. Jewitt. Measurer S. S.
Sheppard. 8.3-m Subaru reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
041017 304 0.07+ 0.03+ 041214 568 0.07+ 0.03+ MPO 58041
Orbital elements:
2003 US292
Epoch 2005 Aug. 18.0 TT = JDT 2453600.5 MPC
M 0.75547 (2000.0) P Q
n 0.00362390 Peri. 348.69768 +0.95080335 -0.30288672
a 41.9776983 Node 29.19054 +0.29361681 +0.81407705
e 0.2493609 Incl. 7.66580 +0.09880366 +0.49551810
P 272 H 8.8 G 0.15 U 5
Residuals in seconds of arc
031024 695 0.1- 0.1- 041017 304 0.2- 0.1+ 041213 568 0.2+ 0.2-
031024 695 0.1+ 0.1+ 041017 304 0.0 0.2+ 041214 568 0.1- 0.1-
031120 695 0.0 0.0 041017 304 0.1+ 0.0
031120 695 0.0 0.0 041212 568 0.0 0.0
Ephemeris:
2003 US292 a,e,i = 41.98, 0.25, 8 q = 31.510
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 07 09 01 19.18 +06 53.3 31.567 31.511 86.0 1.8 24.0
2005 07 19 01 19.39 +06 54.6 31.399 31.511 95.4 1.8 24.0
2005 07 29 01 19.41 +06 54.8 31.234 31.511 105.0 1.8 24.0
2005 08 08 01 19.24 +06 53.9 31.076 31.512 114.6 1.7 24.0
2005 08 18 01 18.88 +06 51.8 30.930 31.512 124.3 1.5 23.9
2005 08 28 01 18.36 +06 48.9 30.801 31.512 134.0 1.3 23.9
2005 09 07 01 17.69 +06 45.0 30.692 31.512 143.9 1.1 23.9
2005 09 17 01 16.89 +06 40.5 30.607 31.512 153.8 0.8 23.9
2005 09 27 01 15.99 +06 35.5 30.548 31.512 163.8 0.5 23.8
2005 10 07 01 15.03 +06 30.2 30.519 31.513 173.8 0.2 23.8
2005 10 17 01 14.05 +06 24.8 30.519 31.513 175.7 0.1 23.8
2005 10 27 01 13.09 +06 19.5 30.549 31.513 165.6 0.4 23.8
2005 11 06 01 12.18 +06 14.7 30.609 31.513 155.4 0.8 23.9
2005 11 16 01 11.35 +06 10.4 30.697 31.513 145.1 1.0 23.9
2005 11 26 01 10.65 +06 07.0 30.810 31.514 134.9 1.3 23.9
2005 12 06 01 10.11 +06 04.6 30.944 31.514 124.6 1.5 23.9
2005 12 16 01 09.73 +06 03.2 31.096 31.514 114.3 1.6 24.0
2005 12 26 01 09.55 +06 03.1 31.260 31.514 104.1 1.7 24.0
2006 01 05 01 09.58 +06 04.2 31.432 31.515 93.9 1.8 24.0
2006 01 15 01 09.81 +06 06.6 31.606 31.515 83.8 1.8 24.0
2006 01 25 01 10.23 +06 10.1 31.776 31.515 73.8 1.7 24.0
2006 02 04 01 10.86 +06 14.8 31.939 31.516 63.8 1.6 24.0
2006 02 14 01 11.65 +06 20.6 32.088 31.516 53.9 1.5 24.0
2006 02 24 01 12.61 +06 27.2 32.220 31.516 44.1 1.3 24.0
2006 03 06 01 13.69 +06 34.6 32.331 31.516 34.3 1.0 24.0
This 3:5 Neptune-resonance object remains more than 15 AU from Neptune
over a 14 000-year period.
Brian G. Marsden (C) Copyright 2005 MPC M.P.E.C. 2005-N61
Read MPEC 2005-N60
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