MPEC 2009-V19 : COMET P/2009 U4 (McNAUGHT)
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M.P.E.C. 2009-V19 Issued 2009 Nov. 6, 15:44 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
COMET P/2009 U4 (McNAUGHT)
Observations:
PK09U040 C2009 10 24.40761 20 51 07.22 -30 53 31.3 17.1 T EV019E12
PK09U040 C2009 10 24.40989 20 51 07.61 -30 53 29.1 17.1 T EV019E12
PK09U040 C2009 10 24.41221 20 51 07.94 -30 53 27.1 17.2 T EV019E12
PK09U040 C2009 10 25.79223 20 54 40.85 -30 30 41.7 17.9 N EV019204
PK09U040 C2009 10 25.80985 20 54 43.50 -30 30 24.2 EV019204
PK09U040 C2009 11 01.35169 21 11 20.85 -28 38 57.1 17.6 N EV019E94
PK09U040 C2009 11 01.38786 21 11 25.84 -28 38 16.8 17.8 N EV019E94
PK09U040 C2009 11 01.40909 21 11 29.95 -28 37 50.5 17.7 N EV019E94
PK09U040 C2009 11 01.43032 21 11 32.01 -28 37 32.5 17.7 N EV019E94
PK09U040 C2009 11 01.45149 21 11 35.13 -28 37 10.7 17.9 N EV019E94
PK09U040 C2009 11 01.47278 21 11 38.46 -28 36 49.0 17.4 N EV019E94
PK09U040 C2009 11 01.49400 21 11 41.78 -28 36 24.4 17.1 N EV019E94
PK09U040 C2009 11 05.14729 21 20 48.70 -27 32 21.5 18.2 N EV019I10
PK09U040 C2009 11 05.15210 21 20 49.46 -27 32 16.0 18.7 N EV019I10
PK09U040 C2009 11 05.15691 21 20 50.08 -27 32 10.1 18.9 N EV019I10
PK09U040 C2009 11 05.56226 21 21 50.39 -27 24 58.9 18.0 T EV019D90
PK09U040 C2009 11 05.56467 21 21 50.72 -27 24 56.1 EV019D90
PK09U040 C2009 11 05.56707 21 21 51.11 -27 24 53.3 EV019D90
PK09U040 C2009 11 05.73223 21 22 16.03 -27 22 05.1 17.3 T EV019215
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.38-m f/6.8 reflector
+ CCD.
215 Buchloe. Observer W. Hasubick. 0.44-m f/4.6 reflector + CCD.
D90 RAS Observatory, Moorook. Observer H. Sato. 0.30-m f/6.5
Ritchey-Chretien + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. 0.5-m Uppsala Schmidt
+ CCD.
E94 Possum Observatory, Gisborne. Observer J. Drummond. 0.41-m f/5.2
reflector + CCD.
I10 Campo Catino Austral Obs., San Pedro de Atacama. Observers A. Maury,
F. Kugel, F. Mallia. Measurer F. Kugel. 0.4-m f/8 Ritchey-Chretien
+ CCD.
Orbital elements:
P/2009 U4 (McNaught)
T 2009 Sept. 9.297 TT MPC
q 1.65148 (2000.0) P Q
n 0.083357 Peri. 260.100 +0.702756 +0.696558
a 5.19008 Node 55.573 -0.564424 +0.669711
e 0.68180 Incl. 10.104 -0.433081 +0.257478
P 11.8
From 46 observations 2009 Oct. 11-Nov. 5.
Ephemeris:
P/2009 U4 (McNaught)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2009 11 05 21 20.45 -27 35.0 1.436 1.765 91.3 34.2 17.3
2009 11 15 21 44.77 -24 34.8 1.552 1.805 87.6 33.2 17.5
2009 11 25 22 08.14 -21 30.2 1.676 1.851 83.8 32.0 17.8
2009 12 05 22 30.55 -18 24.7 1.809 1.900 79.8 30.7 18.1
2009 12 15 22 52.07 -15 20.8 1.950 1.954 75.6 29.2 18.4
2009 12 25 23 12.80 -12 20.3 2.098 2.011 71.3 27.6 18.6
2010 01 04 23 32.82 -09 24.9 2.250 2.071 66.8 25.9 18.9
2010 01 14 23 52.22 -06 35.4 2.406 2.133 62.2 24.1 19.2
2010 01 24 00 11.11 -03 52.5 2.565 2.197 57.4 22.2 19.5
Further observations of this comet are very desirable.
Further observations of comet C/2009 U5 are desirable.
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-V19
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