MPEC 2009-D58 : 2009 DK12
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M.P.E.C. 2009-D58 Issued 2009 Feb. 23, 17:03 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 DK12
Observations:
K09D12K* C2009 02 20.51866 16 23 49.07 -03 48 54.2 21.5 V ED058691
K09D12K C2009 02 20.53150 16 23 49.57 -03 48 58.1 21.1 V ED058691
K09D12K C2009 02 20.54459 16 23 50.00 -03 49 01.1 21.1 V ED058691
K09D12K C2009 02 21.20882 16 24 14.96 -03 52 06.3 21.6 C ED058493
K09D12K C2009 02 21.21470 16 24 15.16 -03 52 08.2 21.6 C ED058493
K09D12K C2009 02 21.22059 16 24 15.37 -03 52 09.8 21.1 C ED058493
K09D12K C2009 02 21.45161 16 24 23.99 -03 53 13.5 20.8 R ED058H01
K09D12K C2009 02 21.45911 16 24 24.26 -03 53 15.6 20.4 R ED058H01
K09D12K C2009 02 21.47088 16 24 24.69 -03 53 18.9 20.8 R ED058H01
K09D12K C2009 02 21.47809 16 24 24.95 -03 53 21.0 20.7 R ED058H01
K09D12K C2009 02 22.44557 16 25 00.27 -03 57 49.7 20.2 R ED058H01
K09D12K C2009 02 22.45544 16 25 00.62 -03 57 52.4 20.7 R ED058H01
K09D12K C2009 02 22.45878 16 25 00.74 -03 57 53.4 20.7 R ED058H01
K09D12K C2009 02 22.46537 16 25 00.97 -03 57 55.2 20.3 R ED058H01
K09D12K C2009 02 23.19872 16 25 27.12 -04 01 19.1 20.8 C ED058493
K09D12K C2009 02 23.20729 16 25 27.43 -04 01 21.5 21.0 C ED058493
K09D12K C2009 02 23.21591 16 25 27.72 -04 01 24.0 20.9 C ED058493
K09D12K C2009 02 23.44208 16 25 35.71 -04 02 26.4 21.2 V ED058H55
K09D12K C2009 02 23.44770 16 25 35.89 -04 02 28.1 21.4 V ED058H55
K09D12K C2009 02 23.45373 16 25 36.12 -04 02 29.3 21.4 V ED058H55
K09D12K 6C2009 02 23.63445516 25 42.48 -04 03 19.0 20.3 R ED058F65
K09D12K 6C2009 02 23.63847016 25 42.61 -04 03 20.2 20.4 R ED058F65
K09D12K 6C2009 02 23.64246516 25 42.73 -04 03 21.3 20.2 R ED058F65
Observer details:
493 Calar Alto. Observer F. Hormuth. 1.23-m reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer J. V. Scotti. 0.9-m f/3
reflector + CCD.
F65 Haleakala-Faulkes Telescope North. Observer R. Miles. 2.0-m f/10.0
Ritchey-Chretien + 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.
H55 Astronomical Research Observatory, Charleston. Observer R. Holmes.
Measurer H. Devore. 0.81-m f/4.0 astrograph + CCD.
Orbital elements:
2009 DK12
Epoch 2009 Feb. 18.0 TT = JDT 2454880.5 MPC
M 323.28457 (2000.0) P Q
n 0.12380266 Peri. 239.98238 +0.28412264 +0.71407049
a 3.9870291 Node 61.56533 -0.41250091 +0.69344840
e 0.4435892 Incl. 46.68590 -0.86551564 -0.09608665
P 7.96 H 15.5 G 0.15
From 23 observations 2009 Feb. 20-23.
Ephemeris:
2009 DK12 a,e,i = 3.99, 0.44, 47 q = 2.2184
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 02 18 16 22.19 -03 37.2 2.978 3.059 85.3 18.8 21.3
2009 02 28 16 28.10 -04 23.5 2.793 3.017 93.3 19.1 21.1
2009 03 10 16 32.33 -05 10.7 2.609 2.975 101.7 19.1 20.9
2009 03 20 16 34.54 -06 01.2 2.430 2.933 110.7 18.5 20.7
2009 03 30 16 34.37 -06 57.7 2.258 2.891 120.2 17.4 20.5
2009 04 09 16 31.47 -08 03.2 2.098 2.850 130.3 15.5 20.2
2009 04 19 16 25.56 -09 20.7 1.956 2.809 141.1 13.0 20.0
2009 04 29 16 16.51 -10 52.0 1.836 2.769 152.6 9.6 19.7
2009 05 09 16 04.57 -12 37.7 1.743 2.730 164.6 5.6 19.3
2009 05 19 15 50.37 -14 35.5 1.682 2.691 174.6 2.0 19.0
2009 05 29 15 34.99 -16 41.1 1.654 2.653 167.6 4.7 19.1
2009 06 08 15 19.83 -18 49.4 1.659 2.615 155.3 9.3 19.3
2009 06 18 15 06.24 -20 56.1 1.694 2.579 143.1 13.7 19.5
2009 06 28 14 55.26 -22 58.9 1.754 2.544 131.5 17.4 19.7
2009 07 08 14 47.54 -24 57.9 1.833 2.510 120.8 20.4 19.8
2009 07 18 14 43.25 -26 54.1 1.926 2.477 110.9 22.5 20.0
2009 07 28 14 42.36 -28 48.9 2.027 2.446 101.8 24.0 20.1
2009 08 07 14 44.66 -30 43.7 2.131 2.416 93.5 24.8 20.2
2009 08 17 14 49.92 -32 39.3 2.236 2.388 85.9 25.0 20.3
2009 08 27 14 57.92 -34 36.0 2.338 2.362 78.9 24.8 20.4
2009 09 06 15 08.49 -36 33.6 2.435 2.337 72.4 24.3 20.4
2009 09 16 15 21.51 -38 31.5 2.525 2.315 66.4 23.5 20.4
2009 09 26 15 36.95 -40 28.8 2.608 2.294 60.9 22.5 20.5
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-D58
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