MPEC 2006-U49 : 2001 UF18
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M.P.E.C. 2006-U49 Issued 2006 Oct. 23, 19:25 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2001 UF18
Revision to MPEC 2001-U70
Additional Observations:
K01U18F C2006 10 22.31060 04 18 37.36 +18 16 06.2 20.0 V EU049G96
K01U18F C2006 10 22.32712 04 18 34.05 +18 16 20.4 19.5 V EU049G96
K01U18F C2006 10 22.33572 04 18 32.32 +18 16 28.3 19.9 V EU049G96
K01U18F C2006 10 22.38220 04 18 23.02 +18 17 08.7 19.7 V EU049G96
K01U18F C2006 10 22.39116 04 18 21.22 +18 17 16.7 19.8 V EU049G96
K01U18F C2006 10 22.40019 04 18 19.41 +18 17 24.6 19.9 V EU049G96
K01U18F C2006 10 23.33611 04 15 13.72 +18 30 50.1 19.9 V EU049G96
K01U18F C2006 10 23.34581 04 15 11.75 +18 30 58.0 EU049G96
K01U18F C2006 10 23.35554 04 15 09.75 +18 31 06.6 20.0 V EU049G96
K01U18F C2006 10 23.36494 04 15 07.82 +18 31 15.0 19.8 V EU049G96
Observer details:
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. Measurers E. C. Beshore,
E. J. Christensen, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
061022 G96 0.69- 0.87- 061023 G96 0.71- 0.87- MPO 57847 +1.8 day
Orbital elements:
2001 UF18 Earth MOID = 0.3128 AU
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 MPC
M 80.69399 (2000.0) P Q
n 0.80844792 Peri. 202.51216 -0.40586277 +0.83403208
a 1.1412164 Node 46.03099 -0.73935385 -0.05925570
e 0.6095648 Incl. 31.28259 -0.53724416 -0.54852461
P 1.22 H 18.8 G 0.15 U 6
Residuals in seconds of arc
011026 608 0.7+ 0.4- 011112 715 0.6- 1.0- 061022 G96 0.2+ 0.1-
011026 608 0.9+ 0.2+ 011112 715 0.3- 1.0- 061022 G96 0.2+ 0.1+
011026 608 0.7+ 0.1- 011112 715 0.5- 1.2- 061022 G96 0.3+ 0.2+
011027 711 0.2- 0.8+ 011120 696 0.1- 0.8+ 061023 G96 0.2- 0.2+
011027 711 0.2+ 0.1- 011120 696 0.0 1.3+ 061023 G96 0.1+ 0.3-
011027 711 0.5- 0.7+ 061022 G96 0.1- 0.1- 061023 G96 0.1+ 0.1-
011028 711 1.0- 0.1+ 061022 G96 0.2- 0.4- 061023 G96 0.2+ 0.2+
011028 711 (0.8+ 1.7+) 061022 G96 0.3- 0.0
Ephemeris:
2001 UF18 a,e,i = 1.14, 0.61, 31 q = 0.4456
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 10 22 04 19.63 +18 11.7 0.693 1.600 142.0 22.5 20.1
2006 11 01 03 43.77 +20 23.9 0.681 1.649 160.0 11.9 19.8
2006 11 11 03 04.90 +21 54.7 0.704 1.692 175.4 2.7 19.5
2006 11 21 02 29.59 +22 37.6 0.762 1.730 162.3 10.0 20.0
2006 12 01 02 02.51 +22 49.5 0.853 1.762 146.6 18.0 20.6
2006 12 11 01 44.66 +22 53.1 0.966 1.788 132.8 23.8 21.1
2006 12 21 01 34.89 +23 02.5 1.095 1.808 120.8 27.9 21.5
2006 12 31 01 31.52 +23 24.3 1.232 1.823 110.3 30.4 21.9
Kyle E. Smalley (C) Copyright 2006 MPC M.P.E.C. 2006-U49
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