MPEC 2009-U21 : 2009 UN
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M.P.E.C. 2009-U21 Issued 2009 Oct. 17, 12:41 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 UN
Observations:
K09U00N* C2009 10 16.46015 05 04 51.24 +22 47 25.8 19.8 V EU021G96
K09U00N C2009 10 16.46645 05 04 52.68 +22 47 31.2 20.1 V EU021G96
K09U00N C2009 10 16.47268 05 04 54.08 +22 47 36.7 20.1 V EU021G96
K09U00N C2009 10 16.47903 05 04 55.52 +22 47 42.1 20.0 V EU021G96
K09U00N C2009 10 16.50767 05 05 02.04 +22 48 07.3 21.1 V EU021G96
K09U00N C2009 10 16.50830 05 05 02.22 +22 48 08.1 21.4 V EU021G96
K09U00N C2009 10 16.50892 05 05 02.36 +22 48 08.7 21.2 V EU021G96
K09U00N C2009 10 16.50954 05 05 02.50 +22 48 09.1 22.1 V EU021G96
K09U00N 6C2009 10 16.59526 05 05 23.41 +22 49 31.6 19.9 R EU021F65
K09U00N 6C2009 10 16.59615 05 05 23.62 +22 49 32.5 19.9 R EU021F65
K09U00N 6C2009 10 16.59695 05 05 23.79 +22 49 33.1 20.2 R EU021F65
K09U00N 6C2009 10 16.59777 05 05 23.98 +22 49 34.0 19.8 R EU021F65
K09U00N C2009 10 17.18758 05 07 44.49 +22 57 57.6 EU021J95
K09U00N C2009 10 17.19337 05 07 45.86 +22 58 03.4 EU021J95
K09U00N C2009 10 17.19915 05 07 47.14 +22 58 07.2 19.8 R EU021J95
K09U00N C2009 10 17.30805 05 08 14.76 +22 59 48.3 20.5 R EU021H01
K09U00N C2009 10 17.31264 05 08 15.81 +22 59 52.5 20.4 R EU021H01
K09U00N C2009 10 17.31832 05 08 17.11 +22 59 57.7 20.5 R EU021H01
K09U00N C2009 10 17.43144 05 08 42.93 +23 01 40.5 20.2 R EU021926
K09U00N C2009 10 17.43554 05 08 43.84 +23 01 43.7 20.8 R EU021926
K09U00N C2009 10 17.49556 05 08 57.33 +23 02 34.2 20.0 V EU021G96
K09U00N C2009 10 17.49816 05 08 57.94 +23 02 37.2 20.1 V EU021G96
K09U00N C2009 10 17.50076 05 08 58.56 +23 02 39.0 20.4 V EU021G96
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
F65 Haleakala-Faulkes Telescope North. Observer R. Miles. 2.0-m f/10.0
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. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2009 UN Earth MOID = 0.2005 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 14.24279 (2000.0) P Q
n 0.19684190 Peri. 6.59574 +0.74814905 -0.66310287
a 2.9267863 Node 34.97887 +0.60686300 +0.66929481
e 0.5927743 Incl. 2.38175 +0.26831006 +0.33517016
P 5.01 H 21.1 G 0.15 U 8
Residuals in seconds of arc
091016 G96 0.3- 0.0 091016 F65 0.8- 0.3- 091017 H01 0.6- 0.2-
091016 G96 0.2- 0.2- 091016 F65 0.7- 0.1- 091017 H01 0.6- 0.2-
091016 G96 0.5- 0.2- 091016 F65 0.8- 0.2- 091017 926 0.3- 0.4+
091016 G96 0.6- 0.4- 091016 F65 0.8- 0.1- 091017 926 0.5- 0.0
091016 G96 1.0- 0.2- 091017 J95 0.7- 0.2- 091017 G96 1.0- 0.7-
091016 G96 0.5- 0.1+ 091017 J95 0.1- 0.6+ 091017 G96 0.7- 0.1+
091016 G96 0.5- 0.1+ 091017 J95 0.7- 0.6- 091017 G96 0.2- 0.3-
091016 G96 0.5- 0.0 091017 H01 0.5- 0.2-
Ephemeris:
2009 UN a,e,i = 2.93, 0.59, 2 q = 1.1919
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 10 16 05 03.01 +22 40.6 0.298 1.195 125.8 42.6 20.5
2009 10 26 05 40.52 +24 52.0 0.291 1.192 127.0 41.8 20.4
2009 11 05 06 10.99 +26 29.5 0.293 1.201 130.0 39.2 20.4
2009 11 15 06 32.46 +27 42.8 0.302 1.222 135.2 34.7 20.4
2009 11 25 06 44.41 +28 40.5 0.317 1.254 142.6 28.6 20.4
2009 12 05 06 47.98 +29 24.5 0.341 1.295 151.7 21.2 20.4
2009 12 15 06 45.41 +29 52.2 0.374 1.345 161.8 13.2 20.4
2009 12 25 06 39.84 +30 00.5 0.421 1.401 171.2 6.2 20.4
2010 01 04 06 34.48 +29 50.1 0.484 1.463 171.2 5.9 20.8
2010 01 14 06 31.40 +29 26.4 0.563 1.529 162.2 11.3 21.5
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-U21
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