MPEC 2009-K21 : 2009 DV42
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M.P.E.C. 2009-K21 Issued 2009 May 19, 19:40 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 DV42
Revision to MPEC 2009-D67
Additional Observations:
K09D42V & 1975 11 27.50668 02 43 14.77 -41 49 44.7 EK021260
K09D42V & 1975 11 27.54834 02 43 12.13 -41 48 53.1 EK021260
K09D42V C2003 05 09.54517 16 41 33.99 +14 01 39.3 19.9 R EK021608
K09D42V C2003 05 09.55598 16 41 33.04 +14 01 39.6 19.9 R EK021608
Observer details:
260 Siding Spring-DSS. Measurer R. Matson. 1.2-m Schmidt.
608 Haleakala-NEAT/MSSS. Observers R. Bambery, E. Helin, S. Pravdo, M. Hicks,
K. Lawrence, P. Kervin. Measurer R. Matson. 1.2-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
751127 260 2.08+ 0.04- 030509 608 0.13+ 0.07- MPO157511 +0.0044 day
Orbital elements:
2009 DV42 Earth MOID = 0.1932 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 99.31373 (2000.0) P Q
n 0.48036492 Peri. 343.72098 -0.20212409 -0.93114424
a 1.6146877 Node 117.06715 +0.93226355 -0.27787813
e 0.2754510 Incl. 19.92789 +0.30005088 +0.23612317
P 2.05 H 18.6 G 0.15 U 3
Residuals in seconds of arc
751127 260 0.4+ 0.1- 090228 H01 0.3+ 0.1+ 090401 H45 0.7+ 0.8-
751127 260 0.4- 0.2- 090228 H01 0.3+ 0.0 090401 H45 0.2+ 0.6-
030509 608 0.4+ 1.0+ 090228 H01 0.3+ 0.1+ 090401 H45 0.0 0.7+
030509 608 0.4+ 0.6+ 090302 857 0.0 0.2- 090401 H45 0.2+ 0.1+
090226 703 0.3- 1.4+ 090302 857 0.1- 0.5- 090401 H45 0.1+ 0.4-
090226 703 0.1- 1.8+ 090302 H55 0.0 0.0 090401 H45 0.3- 0.3-
090226 703 0.4- 0.9+ 090302 H55 0.0 0.1+ 090408 H55 0.6+ 0.3-
090226 703 0.7- 0.5- 090302 H55 0.1+ 0.5+ 090408 H55 0.2+ 0.1-
090226 703 0.3- 1.1- 090303 H55 0.0 0.0 090408 H55 0.2- 0.2+
090226 703 1.2- 0.8+ 090303 H55 0.0 0.1+ 090409 H55 0.1- 0.5-
090226 673 0.2- 0.3- 090303 H55 0.2+ 0.0 090409 H55 0.4- 0.2-
090226 F65 0.2+ 0.4+ 090304 857 0.0 0.8- 090409 H55 0.1- 0.0
090226 F65 0.1+ 0.3+ 090304 857 1.1- 0.9+ 090416 H55 0.1+ 0.2-
090226 F65 0.0 0.2+ 090315 H55 1.7+ 0.6- 090416 H55 0.1+ 0.1-
090226 F65 0.1+ 0.2+ 090315 H55 0.7+ 0.5- 090416 H55 0.1+ 0.2-
090226 F65 0.1+ 0.3+ 090315 H55 0.1+ 0.1- 090421 703 1.0- 0.9-
090226 F65 0.1+ 0.0 090317 A13 0.3- 0.5+ 090421 703 1.3- 0.1+
090226 F65 0.1+ 0.1+ 090317 A13 0.3+ 0.3- 090421 703 0.8- 0.3+
090226 114 0.4- 0.2- 090322 H55 0.2+ 0.1+ 090421 703 1.2- 0.3+
090226 114 0.2- 0.4- 090322 H55 0.1+ 0.1+ 090510 H55 0.3+ 0.2+
090226 114 0.2+ 1.0- 090322 H55 0.3+ 0.3+ 090510 H55 0.1+ 0.0
090226 114 0.4- 0.1- 090322 H55 0.2+ 0.1+ 090510 H55 0.5+ 0.8-
090226 114 0.2+ 0.2- 090324 703 (0.6- 2.3+) 090518 H55 0.2+ 0.3-
090227 587 0.2+ 0.5- 090324 703 0.7+ 0.1+ 090518 H55 0.0 0.3-
090227 587 0.3- 0.2+ 090324 703 (0.2- 2.8+) 090518 H55 0.4+ 0.2-
090227 587 (0.9+ 2.0-) 090324 703 0.8+ 0.2+
Ephemeris:
2009 DV42 a,e,i = 1.61, 0.28, 20 q = 1.1699
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 05 19 13 34.86 +30 51.0 0.938 1.695 120.8 30.8 20.9
2009 05 29 13 33.04 +27 13.2 1.024 1.729 116.1 31.7 21.2
2009 06 08 13 34.86 +23 25.5 1.120 1.762 111.2 32.5 21.4
2009 06 18 13 39.66 +19 36.8 1.222 1.794 106.2 33.0 21.7
2009 06 28 13 46.88 +15 52.1 1.332 1.824 101.1 33.2 21.9
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-K21
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