MPEC 2009-S90 : COMET P/2009 S2 (McNAUGHT)
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M.P.E.C. 2009-S90 Issued 2009 Sept. 24, 22:04 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 S2 (McNAUGHT)
Observations:
PK09S020 C2009 08 03.79574 02 48 59.97 -16 18 18.7 19.7 N ES090E12
PK09S020 C2009 08 03.80424 02 49 00.76 -16 18 22.5 19.1 N ES090E12
PK09S020 C2009 08 03.81275 02 49 01.34 -16 18 27.0 19.5 N ES090E12
PK09S020 C2009 08 03.82116 02 49 02.24 -16 18 31.0 19.9 N ES090E12
PK09S020 C2009 09 20.67787 03 33 06.64 -24 36 16.8 ES090E12
PK09S020 C2009 09 20.68717 03 33 06.68 -24 36 23.4 18.7 T ES090E12
PK09S020 C2009 09 20.69664 03 33 06.82 -24 36 29.2 18.6 T ES090E12
PK09S020 C2009 09 20.70632 03 33 06.95 -24 36 35.8 19.1 T ES090E12
PK09S020 C2009 09 20.77418 03 33 07.65 -24 37 20.4 18.9 T ES090E12
PK09S020 C2009 09 20.77618 03 33 07.65 -24 37 22.2 18.4 T ES090E12
PK09S020 C2009 09 20.78554 03 33 07.70 -24 37 28.1 18.4 T ES090E12
PK09S020 C2009 09 21.64139 03 33 18.38 -24 46 51.5 18.9 N ES090E12
PK09S020 C2009 09 21.64829 03 33 18.37 -24 46 56.3 ES090E12
PK09S020 C2009 09 23.72595 03 33 37.17 -25 09 24.9 18.5 T ES090E12
PK09S020 C2009 09 23.74537 03 33 37.28 -25 09 37.9 18.5 T ES090E12
PK09S020 C2009 09 23.74842 03 33 37.31 -25 09 39.8 18.8 T ES090E12
PK09S020 C2009 09 24.16115 03 33 40.39 -25 14 03.3 ES090I21
PK09S020 C2009 09 24.20870 03 33 40.73 -25 14 34.7 ES090I21
PK09S020 C2009 09 24.35643 03 33 41.43 -25 16 13.6 18.7 T ES090H06
PK09S020 C2009 09 24.36132 03 33 41.41 -25 16 17.0 18.5 T ES090H06
PK09S020 C2009 09 24.36525 03 33 41.34 -25 16 19.5 18.5 T ES090H06
PK09S020 C2009 09 24.39836 03 33 41.64 -25 16 40.6 19.4 N ES090854
PK09S020 C2009 09 24.40796 03 33 41.64 -25 16 46.7 19.2 N ES090854
PK09S020 C2009 09 24.41755 03 33 41.56 -25 16 52.3 19.1 N ES090854
PK09S020 C2009 09 24.44778 03 33 41.77 -25 17 12.1 19.1 T ES090H01
PK09S020 C2009 09 24.46898 03 33 41.86 -25 17 26.1 19.1 T ES090H01
PK09S020 C2009 09 24.47398 03 33 41.87 -25 17 29.3 19.1 T ES090H01
PK09S020 C2009 09 24.47926 03 33 41.90 -25 17 32.5 19.0 T ES090H01
PK09S020 C2009 09 24.65996 03 33 43.05 -25 19 22.0 18.5 T ES090E12
PK09S020 C2009 09 24.66233 03 33 43.07 -25 19 23.4 18.7 T ES090E12
PK09S020 C2009 09 24.66468 03 33 43.08 -25 19 25.2 18.7 T ES090E12
PK09S020 C2009 09 24.66735 03 33 43.09 -25 19 26.7 18.8 T ES090E12
PK09S020 C2009 09 24.76493 03 33 43.49 -25 20 28.4 18.9 N ES090D21
PK09S020 C2009 09 24.78069 03 33 43.59 -25 20 38.0 18.8 N ES090D21
PK09S020 C2009 09 24.79514 03 33 43.60 -25 20 47.6 18.9 N ES090D21
Observer details:
854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0
Schmidt-Cassegrain + CCD.
D21 Shenton Park. Observers P. Luckas, P. R. Holvorcem. Measurer
P. R. Holvorcem. 0.35-m f/8.6 Schmidt-Cassegrain + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. 0.5-m Uppsala Schmidt
+ CCD.
H01 Magdalena Ridge Observatory, Socorro. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
H06 RAS Observatory, Mayhill. Observers E. Guido, G. Sostero. 0.25-m f/3.4
reflector + CCD.
I21 El Condor Observatory, Cordoba. Observer W. Robledo. Measurer
C. Montivero. 0.20-m f/3.9 Schmidt-Cassegrain + CCD.
Orbital elements:
P/2009 S2 (McNaught)
T 2009 June 23.6201 TT MPC
q 2.203599 (2000.0) P Q
n 0.1160966 Peri. 230.3660 +0.9110208 +0.0739095
a 4.161561 Node 121.6146 -0.0267902 +0.9923362
e 0.470488 Incl. 28.4493 -0.4114892 +0.0990262
P 8.49
From 35 observations 2009 Aug. 3-Sept. 24.
Ephemeris:
P/2009 S2 (McNaught)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2009 09 16 03 31.72 -23 43.9 1.638 2.302 119.1 22.4 18.7
2009 09 26 03 33.80 -25 33.4 1.609 2.325 124.2 20.9 18.7
2009 10 06 03 32.63 -27 08.9 1.593 2.351 128.6 19.4 18.7
2009 10 16 03 28.48 -28 20.6 1.592 2.379 132.2 18.1 18.8
2009 10 26 03 21.98 -28 59.3 1.607 2.408 134.3 17.2 18.8
2009 11 05 03 14.16 -28 58.5 1.639 2.440 134.7 16.8 18.9
2009 11 15 03 06.15 -28 16.6 1.689 2.473 133.2 17.0 19.1
2009 11 25 02 59.07 -26 55.6 1.757 2.507 129.9 17.6 19.2
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-S90
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