MPEC 2009-P52 : COMET C/2009 O4 (HILL)
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M.P.E.C. 2009-P52 Issued 2009 Aug. 15, 14:49 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/2009 O4 (HILL)
Observations:
CK09O040 C2009 08 03.04236 00 32 12.82 +06 24 21.9 16.7 N EP052473
CK09O040 C2009 08 03.04375 00 32 12.80 +06 24 20.8 16.7 N EP052473
CK09O040 C2009 08 03.38407 00 32 06.41 +06 17 11.4 16.9 N EP052H06
CK09O040 C2009 08 03.38763 00 32 06.36 +06 17 06.9 EP052H06
CK09O040 C2009 08 05.37353 00 31 25.78 +05 34 06.1 16.2 N EP052H06
CK09O040 C2009 08 05.37708 00 31 25.77 +05 34 01.4 EP052H06
CK09O040 C2009 08 06.05617 00 31 10.37 +05 18 50.6 EP052118
CK09O040 C2009 08 06.06437 00 31 10.24 +05 18 38.9 EP052118
CK09O040 C2009 08 11.72279 00 28 33.60 +03 02 43.7 15.7 T EP052349
CK09O040 C2009 08 11.72517 00 28 33.53 +03 02 39.8 EP052349
CK09O040 C2009 08 11.72753 00 28 33.45 +03 02 36.3 EP052349
CK09O040 C2009 08 12.73870 00 27 59.80 +02 36 34.1 16.0 T EP052D90
CK09O040 C2009 08 12.74147 00 27 59.69 +02 36 29.9 EP052D90
CK09O040 C2009 08 12.94126 00 27 52.95 +02 31 10.3 16.9 N EP052B18
CK09O040 C2009 08 12.94161 00 27 52.90 +02 31 09.7 16.7 N EP052B18
CK09O040 C2009 08 12.94196 00 27 52.90 +02 31 08.9 16.9 N EP052B18
CK09O040 C2009 08 12.94233 00 27 52.87 +02 31 08.3 17.0 N EP052B18
CK09O040 C2009 08 12.94267 00 27 52.88 +02 31 07.8 16.7 N EP052B18
CK09O040 C2009 08 12.94339 00 27 52.84 +02 31 06.8 16.6 N EP052B18
CK09O040 C2009 08 12.94411 00 27 52.83 +02 31 05.6 16.9 N EP052B18
CK09O040 C2009 08 12.94446 00 27 52.80 +02 31 05.1 17.0 N EP052B18
CK09O040 C2009 08 12.94920 00 27 52.63 +02 30 57.7 16.7 N EP052B18
CK09O040 C2009 08 12.94992 00 27 52.62 +02 30 56.6 16.6 N EP052B18
CK09O040 C2009 08 12.95027 00 27 52.62 +02 30 55.8 16.9 N EP052B18
CK09O040 C2009 08 12.95061 00 27 52.59 +02 30 55.1 16.8 N EP052B18
CK09O040 C2009 08 12.95133 00 27 52.57 +02 30 54.3 16.8 N EP052B18
CK09O040 C2009 08 12.95168 00 27 52.56 +02 30 53.8 16.7 N EP052B18
CK09O040 C2009 08 13.31234 00 27 40.01 +02 21 24.9 16.6 N EP052H45
CK09O040 C2009 08 13.31436 00 27 39.94 +02 21 21.5 16.7 N EP052H45
CK09O040 C2009 08 13.31562 00 27 39.89 +02 21 19.5 16.6 N EP052H45
CK09O040 C2009 08 13.31750 00 27 39.81 +02 21 16.6 16.5 N EP052H45
CK09O040 C2009 08 13.31845 00 27 39.79 +02 21 15.4 16.5 N EP052H45
CK09O040 C2009 08 13.32024 00 27 39.73 +02 21 12.1 16.6 N EP052H45
CK09O040 C2009 08 13.32130 00 27 39.69 +02 21 10.2 16.6 N EP052H45
CK09O040 C2009 08 13.95578 00 27 17.15 +02 04 17.6 17.6 N EP052J08
CK09O040 C2009 08 13.96860 00 27 16.64 +02 03 56.8 17.5 N EP052J08
CK09O040 C2009 08 13.97963 00 27 16.22 +02 03 39.2 17.6 N EP052J08
CK09O040 C2009 08 14.00962 00 27 15.12 +02 02 50.5 17.0 N EP052160
CK09O040 C2009 08 14.01375 00 27 14.95 +02 02 44.2 16.8 N EP052160
CK09O040 C2009 08 14.01720 00 27 14.83 +02 02 38.6 16.9 N EP052160
CK09O040 C2009 08 14.03132 00 27 14.29 +02 02 15.6 16.9 N EP052160
CK09O040 C2009 08 14.03429 00 27 14.18 +02 02 11.0 16.9 N EP052160
CK09O040 C2009 08 14.03703 00 27 14.09 +02 02 06.8 16.9 N EP052160
CK09O040 C2009 08 14.38022 00 27 01.37 +01 52 53.0 16.4 N EP052H47
CK09O040 C2009 08 14.39232 00 27 00.92 +01 52 33.6 16.2 N EP052H47
CK09O040 C2009 08 14.40549 00 27 00.38 +01 52 11.8 16.4 N EP052H47
CK09O040 C2009 08 14.70470 00 26 49.38 +01 44 05.1 EP052900
CK09O040 C2009 08 14.70788 00 26 49.26 +01 44 00.0 16.4 N EP052900
CK09O040 C2009 08 14.93045 00 26 40.95 +01 37 55.9 16.1 N EP052235
CK09O040 C2009 08 15.06338 00 26 35.85 +01 34 16.4 16.3 N EP052J53
CK09O040 C2009 08 15.06605 00 26 35.71 +01 34 12.1 16.3 N EP052J53
CK09O040 C2009 08 15.06871 00 26 35.62 +01 34 07.8 16.4 N EP052J53
CK09O040 C2009 08 15.08049 00 26 35.20 +01 33 49.5 16.5 N EP052J38
CK09O040 C2009 08 15.08176 00 26 35.14 +01 33 47.2 16.5 N EP052J38
CK09O040 C2009 08 15.08556 00 26 34.98 +01 33 41.3 16.5 N EP052J38
CK09O040 C2009 08 15.38948 00 26 23.16 +01 25 20.3 16.4 N EP052H47
CK09O040 C2009 08 15.40116 00 26 22.71 +01 25 00.7 16.6 N EP052H47
Observer details:
118 Modra. Observers S. Gajdos, J. Toth. 0.6-m f/5.5 reflector + CCD.
160 Castelmartini. Observers P. Camilleri, E. Guido, E. Prosperi, G. Sostero.
Measurer E. Prosperi. 0.35-m f/10 Schmidt-Cassegrain + CCD.
235 CAST Observatory, Talmassons. Observer R. Ligustri. 0.35-m f/6 reflector
+ CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
473 Remanzacco. Observers L. Donato, M. Gonano, V. Gonano, E. Guido,
A. Lepardo, G. Sostero. 0.45-m f/4.4 Newtonian reflector + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
B18 Terskol. Observers A. Baransky, M. Andreev, V. Ponomarenko, S. Velichko.
0.6-m f/13 reflector + CCD.
D90 RAS Observatory, Moorook. Observer H. Sato. 0.30-m f/9 Ritchey-Chretien
+ CCD.
H06 RAS Observatory, Mayhill. Observer H. Sato. 0.25-m f/3.4 reflector + CCD.
H45 Arkansas Sky Obs., Petit Jean Mountain South. Observer P. C. Sherrod.
0.51-m f/4.3 astrograph + CCD.
H47 Vicksburg. Observer C. Bell. 0.3-m f/4.7 Schmidt-Cassegrain + CCD.
J08 Observatorio Zonalunar, Puzol. Observer A. Carreno. Measurer J. Piqueras.
0.20-m f/5 Newtonian reflector + CCD.
J38 Observatorio La Vara, Valdes. Observer F. Garcia. 0.25-m f/8.1 reflector
+ CCD.
J53 Posadas. Observer R. Benavides. 0.28-m f/6.3 Schmidt-Cassegrain + CCD.
Orbital elements:
C/2009 O4 (Hill)
T 2010 Jan. 1.307 TT MPC
q 2.56371 (2000.0) P Q
Peri. 223.732 +0.708492 -0.695028
Node 172.934 +0.128342 +0.297409
e 1.0 Incl. 95.806 -0.693951 -0.654587
From 202 observations 2009 July 30-Aug. 15.
Ephemeris:
C/2009 O4 (Hill)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2009 08 07 00 30.80 +04 57.4 2.297 3.001 125.5 16.0 16.6
2009 08 17 00 25.31 +00 40.3 2.117 2.949 138.0 13.3 16.3
2009 08 27 00 16.90 -04 31.0 1.973 2.899 151.1 9.7 16.1
2009 09 06 00 05.62 -10 28.1 1.872 2.852 163.0 5.9 15.9
2009 09 16 23 51.85 -16 49.4 1.823 2.807 165.3 5.2 15.8
2009 09 26 23 36.50 -23 03.4 1.828 2.766 154.4 9.0 15.7
2009 10 06 23 20.86 -28 39.2 1.882 2.728 140.5 13.5 15.7
2009 10 16 23 06.35 -33 18.1 1.976 2.694 126.7 17.3 15.8
2009 10 26 22 54.23 -36 56.2 2.100 2.663 113.9 20.0 15.9
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-P52
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