MPEC 2009-A04 : COMET C/2008 Y3 (McNAUGHT)
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M.P.E.C. 2009-A04 Issued 2009 Jan. 1, 18:28 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 C/2008 Y3 (McNAUGHT)
Observations:
CK08Y030 C2008 12 31.64373 08 51 56.50 -21 59 43.3 16.3 T EA004E12
CK08Y030 C2008 12 31.65348 08 51 56.28 -21 59 48.5 16.1 T EA004E12
CK08Y030 C2008 12 31.66444 08 51 55.96 -21 59 53.2 16.2 T EA004E12
CK08Y030 C2008 12 31.75279 08 51 53.48 -22 00 33.0 EA004E12
CK08Y030 C2008 12 31.93527 08 51 48.82 -22 01 59.1 17.0 N EA004114
CK08Y030 C2008 12 31.93918 08 51 48.60 -22 02 01.0 17.2 N EA004114
CK08Y030 C2009 01 01.30557 08 51 38.62 -22 04 45.8 18.1 N EA004854
CK08Y030 C2009 01 01.31140 08 51 38.40 -22 04 49.3 17.6 T EA004H06
CK08Y030 C2009 01 01.31516 08 51 38.35 -22 04 50.5 18.0 N EA004854
CK08Y030 C2009 01 01.31725 08 51 38.21 -22 04 51.9 17.6 T EA004H06
CK08Y030 C2009 01 01.32212 08 51 38.08 -22 04 54.7 17.6 T EA004H06
CK08Y030 C2009 01 01.32473 08 51 38.06 -22 04 54.9 18.1 N EA004854
CK08Y030 C2009 01 01.35476 08 51 37.25 -22 05 08.6 18.0 N EA004H01
CK08Y030 C2009 01 01.35596 08 51 37.17 -22 05 08.9 18.4 T EA004448
CK08Y030 C2009 01 01.36011 08 51 37.07 -22 05 11.2 18.5 T EA004448
CK08Y030 C2009 01 01.37224 08 51 36.95 -22 05 17.2 17.5 T EA004H06
CK08Y030 C2009 01 01.37335 08 51 36.71 -22 05 16.3 17.8 T EA004448
CK08Y030 C2009 01 01.37605 08 51 36.62 -22 05 18.7 18.1 N EA004H01
CK08Y030 C2009 01 01.38369 08 51 36.41 -22 05 21.9 18.0 N EA004H01
CK08Y030 C2009 01 01.39211 08 51 36.19 -22 05 26.0 18.1 N EA004H01
CK08Y030 C2009 01 01.40022 08 51 35.97 -22 05 25.9 17.7 T EA004H06
CK08Y030 C2009 01 01.49780 08 51 33.33 -22 06 10.7 17.9 T EA004F84
CK08Y030 C2009 01 01.50439 08 51 33.06 -22 06 14.4 17.2 T EA004F84
CK08Y030 C2009 01 01.56497 08 51 31.48 -22 06 40.5 17.9 T EA004E12
CK08Y030 C2009 01 01.58537 08 51 30.87 -22 06 49.4 17.8 T EA004E12
CK08Y030 C2009 01 01.62568 08 51 29.77 -22 07 09.7 18.0 R EA004355
CK08Y030 C2009 01 01.62724 08 51 29.75 -22 07 11.0 EA004355
CK08Y030 C2009 01 01.62957 08 51 29.66 -22 07 11.4 EA004355
CK08Y030 C2009 01 01.63190 08 51 29.57 -22 07 12.6 EA004355
CK08Y030 C2009 01 01.66604 08 51 28.62 -22 07 27.0 EA004349
CK08Y030 C2009 01 01.67053 08 51 28.47 -22 07 29.4 18.1 T EA004349
Observer details:
114 Engelhardt Observatory, Zelenchukskaya Station. Observers T. Kryachko,
B. Satovski. Measurer T. Kryachko. 0.3-m f/7.7 reflector + CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
355 Hadano. Observer A. Asami. 0.28-m f/5.0 reflector + CCD.
448 Desert Moon Observatory. Observer B. L. Stevens. 0.3-m
Schmidt-Cassegrain + CCD.
854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0
Schmidt-Cassegrain + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. 0.5-m Uppsala
Schmidt + CCD.
F84 Hibiscus Observatory, Punaauia. Observer M. Meyer. 0.35-m f/2.0 Schmidt
+ 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.
H06 RAS Observatory, Mayhill. Observers E. Guido, G. Sostero, P. Camilleri,
R. Ligustri. 0.25-m f/3.4 reflector + CCD.
Orbital elements:
C/2008 Y3 (McNaught)
T 2009 Nov. 8.502 TT MPC
q 1.90426 (2000.0) P Q
Peri. 343.161 -0.620712 +0.606697
Node 245.270 -0.641504 -0.757164
e 1.0 Incl. 33.146 -0.450765 +0.242120
From 28 observations 2008 Dec. 31-2009 Jan. 1.
Ephemeris:
C/2008 Y3 (McNaught)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2008 12 30 08 52.66 -21 47.1 3.397 4.033 124.3 11.6 17.2
2009 01 09 08 47.67 -22 58.2 3.238 3.945 130.2 11.0 17.0
2009 01 19 08 41.30 -23 52.6 3.099 3.857 134.8 10.4 16.8
2009 01 29 08 33.92 -24 26.5 2.983 3.769 137.5 10.2 16.6
2009 02 08 08 26.09 -24 37.4 2.891 3.680 137.7 10.4 16.5
2009 02 18 08 18.48 -24 24.9 2.821 3.592 135.4 11.1 16.3
2009 02 28 08 11.78 -23 50.4 2.773 3.505 131.1 12.3 16.2
2009 03 10 08 06.60 -22 57.7 2.745 3.417 125.3 13.7 16.0
2009 03 20 08 03.39 -21 52.0 2.733 3.329 118.8 15.2 15.9
2009 03 30 08 02.43 -20 38.6 2.734 3.242 111.9 16.6 15.8
2009 04 09 08 03.85 -19 23.0 2.745 3.156 105.0 17.9 15.7
2009 04 19 08 07.62 -18 09.6 2.763 3.070 98.1 18.9 15.6
2009 04 29 08 13.68 -17 02.1 2.784 2.985 91.5 19.7 15.5
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-A04
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