MPEC 2009-U31 : 2009 UN1
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M.P.E.C. 2009-U31 Issued 2009 Oct. 18, 23:56 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://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2009 UN1
Observations:
K09U01N* C2009 10 17.32663 01 15 51.73 +16 00 24.9 20.6 V EU031G96
K09U01N C2009 10 17.33420 01 15 55.04 +16 01 00.9 20.8 V EU031G96
K09U01N C2009 10 17.34167 01 15 58.32 +16 01 35.8 20.0 V EU031G96
K09U01N C2009 10 17.34905 01 16 01.52 +16 02 11.5 20.7 V EU031G96
K09U01N C2009 10 17.39842 01 16 23.25 +16 06 00.9 19.6 R EU031H01
K09U01N C2009 10 17.40336 01 16 25.49 +16 06 23.9 19.4 R EU031H01
K09U01N C2009 10 17.40785 01 16 27.52 +16 06 45.1 19.5 R EU031H01
K09U01N C2009 10 17.43410 01 16 39.57 +16 08 51.5 19.7 V EU031G96
K09U01N C2009 10 17.43560 01 16 40.22 +16 08 58.2 20.4 V EU031G96
K09U01N C2009 10 17.43634 01 16 40.58 +16 09 01.5 19.8 V EU031G96
K09U01N C2009 10 17.95716 01 21 00.36 +16 50 43.3 EU031J95
K09U01N C2009 10 17.96275 01 21 03.05 +16 51 10.1 EU031J95
K09U01N C2009 10 17.96683 01 21 04.95 +16 51 30.2 20.5 R EU031J95
K09U01N C2009 10 18.12529 01 22 28.38 +17 04 42.2 20.3 R EU031H01
K09U01N C2009 10 18.13096 01 22 31.08 +17 05 10.8 20.0 R EU031H01
K09U01N C2009 10 18.14332 01 22 36.98 +17 06 12.7 20.2 R EU031H01
K09U01N C2009 10 18.15065 01 22 40.47 +17 06 49.5 20.2 R EU031H01
K09U01N C2009 10 18.31023 01 23 53.91 +17 19 49.7 20.2 R EU031H36
K09U01N C2009 10 18.31776 01 23 57.52 +17 20 26.9 20.0 R EU031H36
K09U01N C2009 10 18.32529 01 24 01.04 +17 21 02.3 20.0 R EU031H36
K09U01N C2009 10 18.42757 01 24 50.56 +17 29 27.9 19.5 R EU031H01
K09U01N C2009 10 18.43264 01 24 53.20 +17 29 58.2 20.8 R EU031926
K09U01N C2009 10 18.43359 01 24 53.49 +17 29 56.9 19.5 R EU031H01
K09U01N C2009 10 18.43603 01 24 54.90 +17 30 14.2 21.3 R EU031926
K09U01N C2009 10 18.43877 01 24 56.01 +17 30 21.5 19.7 R EU031H01
K09U01N C2009 10 18.43943 01 24 56.46 +17 30 30.5 21.0 R EU031926
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer R. E. Hill. Measurers E. C. Beshore,
A. Boattini, 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.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2009 UN1 Earth MOID = 0.0716 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 16.35554 (2000.0) P Q
n 0.25824427 Peri. 39.00456 +0.75423775 -0.65660074
a 2.4422058 Node 2.03731 +0.59559344 +0.68355342
e 0.5653996 Incl. 1.51805 +0.27639443 +0.31879490
P 3.82 H 25.2 G 0.15 U 7
Residuals in seconds of arc
091017 G96 0.9+ 0.3+ 091017 G96 0.7- 0.9- 091018 H36 0.6+ 0.3-
091017 G96 0.7+ 0.2+ 091017 J95 0.8- 0.5+ 091018 H36 0.1+ 1.4-
091017 G96 0.6+ 0.3- 091017 J95 0.4+ 0.0 091018 H01 0.6- 0.1+
091017 G96 0.1- 0.3+ 091017 J95 0.4+ 0.1+ 091018 926 0.4+ 0.4+
091017 H01 0.1- 0.2+ 091018 H01 0.2- 0.1- 091018 H01 0.5- 0.3+
091017 H01 0.1+ 0.0 091018 H01 0.3- 0.0 091018 926 1.3+ 0.1+
091017 H01 0.1+ 0.1+ 091018 H01 0.1- 0.2- 091018 H01 0.5- 0.1+
091017 G96 0.5- 0.4- 091018 H01 0.1+ 0.2- 091018 926 0.0 0.2+
091017 G96 1.0- 0.7- 091018 H36 0.3- 0.9-
Ephemeris:
2009 UN1 a,e,i = 2.44, 0.57, 2 q = 1.0614
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 10 16 01 05.75 +14 16.9 0.0852 1.082 173.0 6.5 20.5
2009 10 18 01 21.34 +16 55.2 0.0814 1.077 172.2 7.2 20.4
2009 10 20 01 38.85 +19 40.9 0.0783 1.073 170.6 8.7 20.4
2009 10 22 01 58.30 +22 29.4 0.0759 1.070 168.1 11.0 20.4
2009 10 24 02 19.54 +25 14.6 0.0745 1.067 165.1 13.8 20.5
2009 10 26 02 42.29 +27 49.6 0.0739 1.065 161.8 16.9 20.6
2009 10 28 03 06.06 +30 08.0 0.0742 1.063 158.4 20.1 20.7
2009 10 30 03 30.25 +32 04.9 0.0753 1.062 155.1 23.2 20.8
2009 11 01 03 54.15 +33 37.7 0.0772 1.061 152.0 26.0 21.0
2009 11 03 04 17.14 +34 46.4 0.0798 1.061 149.3 28.5 21.1
2009 11 05 04 38.68 +35 33.1 0.0831 1.062 146.9 30.6 21.2
2009 11 07 04 58.41 +36 01.0 0.0870 1.063 145.0 32.3 21.4
2009 11 09 05 16.15 +36 13.8 0.0913 1.065 143.5 33.6 21.5
2009 11 11 05 31.87 +36 15.1 0.0960 1.068 142.4 34.4 21.7
2009 11 13 05 45.63 +36 08.2 0.101 1.071 141.7 34.9 21.8
2009 11 15 05 57.57 +35 55.5 0.106 1.074 141.3 35.1 21.9
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-U31
Read MPEC 2009-U30
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